INSULATION AND COMPONENTS MICAFIL RIP Transformer … · 2019-01-08 · 4 MICAFIL TRANSFORMER...
Transcript of INSULATION AND COMPONENTS MICAFIL RIP Transformer … · 2019-01-08 · 4 MICAFIL TRANSFORMER...
—
MIC
AFI
L R
IP T
rans
form
er B
ushi
ngs
Air
RIP
/ R
TK
F 24
–550
kV
—INSUL ATION AND COMPONENTS
MICAFIL RIP Transformer BushingsAirRIP / RTKF 24–550 kV
• MICAFIL AirRIP bushings offer an extended service life combined with enhanced reliability and safety to ensure the maximum availability of transformer assets.
• Over 100 years of experience is incorporated in a range of standard and customized products with the flexibility to suit different customer applications. Their high performance design is partial discharge free up to double of the nominal phase to ground service voltage.
— ABB MICAFIL RIP bushings
MICAFIL bushings combine functionality, high performance and long service life.
The optimized solutions are based on our long-term, trustworthy partnerships with customers and our understanding of their needs. With proven components and a variety of designs, our new AirRIP series meets customer-specific requirements. To date, our factory in Zurich Altstetten has delivered more than 600,000 bushings. The world’s leading transformer manufacturers and electric power utilities rely on us. With the new MICAFIL AirRIP series, we will continue to live up to our reputation.
32 MICAFIL TRANSFORMER BUSHINGS AIRRIP / RTKF 24–550 KV
— Contents
04 Today’s technology for tomorrow
05 The AirRIP bushing in detail
06 Choice of insulator
07 Choice of current conductor
08 General information
09 Enquiry data sheet
10 AirRIP overview
AirRIP bushings 24–170 kV
11 Data for types with cable conductor
15 Data for types with rod conductor
19 Data for types with fixed conductor
AirRIP bushings 245–550 kV
23 Data for types with cable conductor
27 Data for types with rod conductor
31 Data for types with fixed conductor
35 Other ABB MICAFIL RIP bushings
4 5MICAFIL TRANSFORMER BUSHINGS AIRRIP / RTKF 24–550 KV
The bushing in principle (for example: bushing for cable conductor)
Insulating coreThe heart of the AirRIP bushing is its RIP insulating core, with capacitor inlays for electric field control. The production of RIP is based on time-tested and proven technology. Complex production processes compress the material into a compact, liquid- and gas-tight insulating core, which complies with current partial discharge and temperature requirements.
To accommodate current transformers, the lower core part can be extended in steps of 100 mm up to 600 mm. The short oil side is consistent with our proven and balanced dimensioning, and optimizes the strength of the interface between the insulating core and transformer oil. These dimensions also guarantee a high level of interchangeability with older bushing types.
Flange and insulatorThe insulator is the supporting part of the bushing and takes over the mechanical loads with the two integrated fittings, head and flange. The flange not only holds the insulating core, it also forms the lower fitting of the insulator.
With a multiple O-ring system, the transition between core and flange is oil-and gas-tight. The aluminium alloy used for this purpose is corrosion-resistant and mechanically robust. This ensures safe handling of bending moments during operation or in bending test loads. The whole series is designed and type-tested in accordance with the highest bending load class of IEC 60137 (2017).
The standard flange plate bolt circles conform to currently common dimensions, although variations can easily be implemented. The flange is equipped with a test tap and has an opening (M12) with a closure screw that can be used to de-aerate the transformer or as a connector for a Buchholz relay. Also mounted on the flange are: identification tag, connection thread M12 for flange earthing and, with larger bushings, eyebolts for lifting purposes.
The head of the bushing closes the bushing and carries the current conductor fixing. The 420 kV and 550 kV bushings have a separate shield to avoid external corona discharges.
Oil side end The shape of the opening ensures that no shield electrodes are required up to 73 kV. We offer shielding as a variant.
From 123 kV, depending on current conductor version, either fixed shields (cable conductors) or removable shields (rod conductor and fixed conductor) are used, which are attached to the end of the bushing. They prevent the excessive use of transformer oil and facilitate the assembly of the conductor insulation beneath the bushing.
ABB's shield electrodes are dimensioned using state-of-the-art methods and their surface is provided as standard with a high-quality solid insulation layer.
Please note our installation recommendations.
—The AirRIP bushing in detail
RIP insulationCapacitor bushings enable control of electric field distribution in radial and axial directions by inserting conductive layers in the insulating core. The insulating core of the RIP (Resin Impregnated Paper) system consists of wound strips of crepe paper. Aluminium foils of graduated lengths are wrapped at exactly calculated points.
The wrap is heated, vacuum dried, and impregnated and cured under vacuum with an epoxy resin formulated by ABB. The impregnation process requires the skilful setting and control of process parameters, as well as broad knowledge and experience in the field of materials science and materials selection.
ABB has developed its expertise over decades, and gained market experience as first-class supplier. The result is RIP bushings with very good thermal and chemical resistance and high mechanical strength and stiffness.
Dry bushingsIn line with our product philosophy of compact design and dry bushing (neither liquid-filled nor liquid-insulated), the space between the major insulation and insulating envelope is filled with the time-tested MICAGEL dry filler. MICAGEL is poured in a liquid form into the bushing and becomes compressible and dry after curing.
Outer insulationPorcelain has proved its worth as a material for outer insulation over decades. More recently, composite hollow insulators have gained market maturity as an alternative material. These silicone composite insulators offer reduced weight, easier handling, and explosion safety characteristics. We can offer AirRIP bushings with silicone composite insulators as well as with traditional porcelain insulators.
AirRIP stands for quality and versatilityHigh-voltage bushings must meet the highest standards of operational safety, and minimize risk of for people and property. Growing environmental awareness and regulation requires low-impact production and clean operation.
The MICAFIL AirRIP series meets these requirements thanks to high-quality materials and reliable processing techniques. ABB maintains high technical standards, and regularly reviews development and manufacturing processes. We ensure high product quality through comprehensive testing during production and in the electrical testing laboratory.
Advantages of MICAFIL AirRIP technology• Partial discharge-free up to double service voltage• High temperature resistance (class E, 120 °C)• Low dielectric losses (tan δ ≤ 0.40 %)• High flexural strength – ‘heavy load’ according to
IEC 60137 (2017)• Completely dry bushing, meaning no oil spills and no
explosion risk• No maintenance or constant monitoring necessary• Transport and storage is possible in all positions• Flexible design allows for adaptation to different customer
needs and transformer requirements.
Current conductor terminal with de-aeration of central tube
Head with clamp for conductor
RIP insulating core with capacitor control and central tube
Porcelain or silicon composite insulator
Dry filling MICAGEL
Flange with test tap and transformer de-aeration (DA)
Bolted flange plate
Sub-section extension for current transformers
Oil side shield
DA Tap
—Today’s technology for tomorrow
MICAFIL AirRIP outdoor transformer bushings are the product of a sophisticated design process, using a minimal number of components: fine-graded insulating core, main flange, insulating envelope and current conductor. They are produced in a wide variety of designs that can easily fulfil specific customer requirements. AirRIP bushings are completely dry, pressurized, explosion-proof, and fire-resistant, and withstand high application temperatures.
6
∅A
C = T–20 mm
De-areation hole
∅B
T = Length of cable bolt diameter
MICAFIL RIP TRANSFORMER BUSHINGS AIRRIP / RTKF 24–550 KV
Medium currents with removable rod conductorFor improved current utilization, the bushing with central tube is equipped with a removable copper conductor rod.
In the standard model, the air side terminals are bare. As an option, the surfaces can be silver- or nickel-plated, and the shapes of the terminals can be selected. The rod conductor can be fitted with a joint, usually near the flange. Various terminal shapes are available for the lower end. Conductor installation and de-aeration of the central tube are similar in both the version with rod conductor and with cable conductor.
Please note: The rod conductor is a separate component and must be selected separately.
High currents with fixed conductorBushings with a directly wound and non-removable conductor are suitable for high currents. Various terminal solutions are available (see data tables and figures).
Current dataThe type designation of the bushings contains the standard current according to IEC 60137 (2017). The actual per mis sible operating currents depend on the lower part extension L6, and are shown in the data tables.
Air side terminalThe standard air side terminal mentioned in the data tables covers the entire current range of the bushing.
Guidelines for the dimensions of air side terminals:
Maximum permissible ∅d2 Lengthc2 operating current (A)
1,600 30 80
2,500 40 125
3,500 50 125
4,300 60 125
5,000 flat 90 × 105 thickness 30
If the full current range of the bushing is not utilized, smaller dimensions may be used as an option, as long as the above rules are observed.
Overload If overload capacity is required for the transformer, according to IEC 60076-7 (normal load cycles), the rated current of the bushing should be chosen with at least 120 % of the transformer-rated current, in accordance with IEC 60137 (2017).
The rated current is the starting point for choosing the type of conductor. However, current levels of conductor types partially overlap and can be selected according to individual preferences. Please follow the appropriate icons when making your choice.
7
The choice of insulator type has no influence on the performance of the bushing.
Please note corresponding weights as well as head and shed diameters for each insulator type.
Silicone composite insulators made of glass fibre- reinforced tube with helical or straight shedsHydrophobicity, and the ability to transfer these properties to foreign layers as well, is the most important value-added feature of these insulators. They offer many advantages: • Excellent contamination behavior due to hydrophobic
surface properties and low leakage currents• Improved safety for personnel and equipment• Lower weight.
The helical shed is the result of intensive development efforts at ABB. Outstanding results in tough long-term pollution tests have proved their quality (certificates available on request).
Insulators with conventional straight sheds complement our product range.
Porcelain insulators made of high-quality electrical porcelain, brown and grey High-quality electrical porcelain – an excellent, proven material over decades– is available in the standard color brown and alternatively in light grey.
Creepage distancesAll types of insulation are made with alternate shed profiles.Creepage distances are measured for the high pollution requirements of IEC 60815:
Bushings Ur class SCD1 USCD2
Up to 420 kV very heavy 31 mm/kV 53.7 mm/kV
550 kV heavy 25 mm/kV3 43.3 mm/kV3
1 SCD: specific creepage distance2 USCD: unified specific creepage distance3 SCD: 31 mm/kV, USCD: 53.7 mm/kV available on request
These long creepage distances ensure optimum dielectric strength, even under extreme environmental conditions.
Porcelain insulator:
Brown GreyStandard Optional(all voltages) (all voltages)
Recommended Option
—Choice of insulator
—Choice of current conductor
Composite insulator with silicone sheds:
Helical sheds Straight shedsStandard ≥ 123 kV Standard ≤ 72.5 kV Optional ≥ 123 kV
Low currents with cable conductorThe current is led through a multi-stranded flexible conductor, joined to the terminal of the winding. The lead is drawn up through the central tube of the bushing and provided with the top connector (cable bolt) that is fastened to the bushing head. In the standard model, the air side terminal is a round, bare copper bolt. As an option, the surfaces can be silver- or nickel-plated, and other terminal sizes can be selected. To avoid unnecessary contact junctions, the draw lead bolt is of a single-piece design. A tried-and-tested fixing device with few parts ensures that no inadvertent displacement in axial direction or twisting is possible. It also allows positioning of the cable bolt to within ± 10 mm from nominal dimensions. Transformer manufacturers must provide the conductor cable with a thin insulation in order to keep transient voltages to the central bushing tube.
Maximum allowable drilling depth and hole diameter of standard cable bolt:
Tube Cable bolt Max. hole Max. holediameterd3 diameter diameter depth[mm] ∅B [mm] ∅A [mm] C [mm]
40 38 35 T-20
50 45 40 T-20
65 60 55 T-20
80 75 70 T-20
100 95 90 T-20
Low currents with cable conductor
Medium currents with removable rod conductor
High currents with fixed conductor
MC
MC
HC
HC
LC
LC
8 MICAFIL RIP TR ANSFORMER BUSHINGS AIRRIP / RTKF 24–550 KV
Test tapEach bushing is equipped with a standard test tap. The test tap is connected to the outermost capacitor foil and is always grounded during operation. For measurement, the cap must be unscrewed and the supplied 4 mm plug coupling must be inserted.
As an option ABB provides transition connectors for continuous voltage measurements.
Routine and type testsThe standard routine tests are carried out in accordance with IEC 60137 (2017) and the protocols are supplied; tests according to other standards are available on request. The type tests were performed on representative bushings in accordance with current standards IEC 60137 (2017), and IEEE C57.19.00 (2004) / C57.19.01 (2000). These tests cover the entire AirRIP portfolio and were successfully passed in the presence of an independent observer from KEMA. Protocols can be supplied to customers on request.
Packaging and storageThe bushings are packaged and sent in a dry and clean state. On request, we offer long-life packaging. The bushings can be transported and stored without the constraints on orientation that liquid-filled or liquid-insulated bushings have.
109
Each AirRIP bushing meets all requirements of IEC 60137 (2017) and the electrical values under IEEE C57.19.01 (2000).
Recommended installationOur bushings are designed and tested for mineral oil appli cations. The field strengths in oil on the lower part of the bushing depend on the shape of the surrounding parts, as well as on the quality and condition of the transformer oil. As a guideline, the following table shows the respective distances A to grounded transformer parts under standard conditions. They are valid for the oil side ends (standard and variants) as per the data tables. Due to limiting conditions additional insulating measures or larger distances may be necessary. Uninsulated edges around the bushing should be rounded to Rmin = 5 mm. The diameter of the current conductor should be at least half of the inner tube diameter d3. Oil access in the central bushing opening and in the open space of the shield electrodes must not be obstructed.
Type designation When making your enquiry please specify the following:
Linienstärken für Grafiken
Linie aussen: 0.5 pt
Linie innen: 0.35 pt, gepunktetRTKF 170–750 / 1600 B KSI
Composite insulator
B = Removable conductor bar
F = Fixed conductor
Rated current (A)
Lightning impulse voltage 1.2/50 µs (kV)
Maximum voltage (kV)
R = RIP bushing
T = Transformer application
K = Short lower part
F = Outdoor use
Our order confirmation includes drawings of the bushing and a detailed bushing data sheet.
Custom modificationsOn request, ABB can make custom modifications in areas such as flange dimensions, terminal variants, other lower part lengths and applications for other oils than mineral oil. We are happy to provide information on feasibility, price and delivery time of such custom modifications.
AL6
+20
Min. R5
Minimum distances A [mm] to transformer tank
Ur
AC
tes
t vo
ltag
e
Fig. 21 Fig. 22 Fig. 23
Shield diameter d6
[kV] [kV] ∅109 ∅134 ∅180 ∅160 ∅180 ∅230 ∅292
≤ 52 ≤105 80 95
72.5140 90 105 120
160 100 105 125
123185 115 115 130 130
230 145 145 145 145
145275 170 170 170
310 200 200 200
170325 210 210 210
365 230 230 230
245 460 300 300 300
300 510 330 330
420630 450
680 500
550750 550
790 600
—General information
—Enquiry data sheet
—AirRIP overview
Um BIL SIL L6 Ir (A) Ir (A) Drawingno:1ZCD… Ir (A) Drawingno:1ZCD…
kV kV kV mm Cable conductor
Rod conductor
Silicone composite insulator
Porcelain insulator Fixed conductor
Silicone composite insulator
Porcelain insulator
24 150 n.a. 0 300 600
1 550 1 380 1 250
Datapages11–14
2 350 2 100 1 850
Datapages15–18
064001 064051 3 050 2 650 2 400
Datapages19–22
064026 064076
24 150 n.a. 0 300 600
2 500 2 200 2 100
3 600 3 200 2 850
064002 064052 4 200 3 800 3 500
064027 064077
24 150 n.a. 0 300 600
3 750 3 200 2 880
5 000 4 300 3 850
064003 064053 5 200 4 500 4 100
064028 064078
36 200 n.a. 0 300 600
1 500 1 330 1 200
2 300 2 050 1 800
064004 064054 3 000 2 600 2 350
064029 064079
36 200 n.a. 0 300 600
2 500 2 200 2 100
3 500 3 150 2 850
064005 064055 4 150 3 750 3 450
064030 064080
36 200 n.a. 0 300 600
3 600 3 120 2 840
4 800 4 200 3 800
064006 064056 5 150 4 500 4 100
064031 064081
52 250 n.a. 0 300 600
1 550 1 380 1 250
2 250 2 000 1 750
064007 064057 2 840 2 520 2 300
064032 064082
52 250 n.a. 0 300 600
2 100 1 850 1 650
2 800 2 470 2 200
064008 064058 3 400 3 000 2 680
064033 064083
52 250 n.a. 0 300 600
2 600 2 300 2 100
3 500 3 100 2 850
064009 064059 4 250 3 800 3 500
064034 064084
72.5 350 n.a. 0 300 600
1 000 890 800
1 750 1 580 1 430
064010 064060 2 200 1 950 1 800
064035 064085
72.5 350 n.a. 0 300 600
2 000 1 800 1 650
2 650 2 380 2 150
064011 064061 3 250 2 950 2 700
064036 064086
72.5 350 n.a. 0 300 600
2 500 2 230 2 040
3 400 3 050 2 780
064012 064062 4 100 3 700 3 400
064037 064087
123 550 n.a. 0 300 600
920 830 770
1 670 1 520 1 370
064013 064063 2 250 2 100 2 000
064038 064088
123 550 n.a. 0 300 600
1 940 1 750 1 600
2 610 2 370 2 180
064014 064064 3 150 2 900 2 700
064039 064089
145 650 n.a. 0 300 600
1 400 1 260 1 160
2 000 1 800 1 670
064015 064065 2 420 2 230 2 100
064040 064090
145 650 n.a. 0 300 600
2 000 1 840 1 730
2 900 2 720 2 550
064016 064066 3 600 3 380 3 150
064041 064091
170 750 n.a. 0 300 600
880 805 755
1 360 1 250 1 170
064017 064067 2 100 2 000 1 900
064042 064092
170 750 n.a. 0 300 600
1 900 1 800 1 700
2 800 2 620 2 450
064018 064068 3 500 3 280 3 050
064043 064093
245 1 050 750 0 300 600
1 030 880 820
Datapages23–26
1 650 1 510 1 400
Datapages27–30
064019 064069 2 150 2 050 1 950
Datapages31–34
064044 064094
245 1 050 750 0 300 600
1 700 1 560 1 450
2 400 2 230 2 100
064020 064070 3 150 3 000 2 900
064045 064095
300 1 175 850 0 300 600
1 000 850 780
1 600 1 440 1 340
064021 064071 2 100 2 000 1 900
064046 064096
300 1 175 850 0 300 600
2 250 2 100 2 000
3 000 2 800 2 600
064022 064072 3 800 3 600 3 400
064047 064097
420 1 675 1 175 0 300 600
1 100 1 250 1 000
1 800 2 000 1 800
064023 064073 2 300 2 600 2 400
064048 064098
420 1 675 1 175 0 300 600
2 000 1 850 1 700
2 800 2 650 2 500
064024 064074 3 250 2 900 2 600
064049 064099
550 1 800 1 240 0 300 600
1 050 1 100
900
1 850 2 000 1 750
064025 064075 2 100 2 200 1 950
064050 064100
24 kV
36 kV
52 kV
72.5 kV
123 kV
145 kV
170 kV
245 kV
300 kV
420 kV
550 kV
Voltage
800 A
1,000 A
1,250 A
1,600 A
2,000 A
2,500 A
3,150 A
4000 A
5000 A
Current
Company name _______________________________
Name / First name ____________________________
Phone ________________________________________
Email _________________________________________
End customer name ___________________________
Country of installation ________________________
Project name _________________________________
— Note
We reserve the right to make technical changes or modify the contents of this document without prior notice. With regard to purchase orders, the agreed particulars shall prevail. ABB Switzerland Ltd does not accept any responsibility whatsoever for potential errors or possible lack of information in this document. We reserve all rights in this document and in the subject matter and illustrations contained therein. Any reproduction, disclosure to third parties or utilization of its contents – in whole or in parts – is forbidden without prior written consent of ABB Switzerland Ltd.
Copyright © 2017 ABB. All rights reserved.
—ABB Switzerland Ltd Insulation and Components, MICAFIL Bushings, Badenerstrasse 780, CH-8048 Zurich, SwitzerlandPhone: +41 58 586 03 33E-mail: info.micafil @ch.abb.com
abb.com/electricalcomponents
∅d6 ∅d6 ∅d6
PorcelainBrown
Grey
Oil side endStandard
Variant 1*
Variant 2*
Flange pitch circle ∅Standard
Variant 1*
Current transformer extension L6 (mm)0 100 200 300 400 500 600
Silicone comp. insulatorHelical sheds (≥123 kV)
Straight sheds
* If available
Current conductorCable bolt for draw lead
Rod conductor
Fixed conductor
Air side terminalDimensions:
Standard
Variant 1*
Variant 2*
Galvanization:
Bare
Silver-plated
Nickel-plated
Removable rod conductorRod conductor, one-piece
Rod conductor, split
Oil side terminal: Standard
Variant 1
Variant 2
Type:
Drawing no:
Quantity:
1ZCD 0 6 4
Routine types and testsIEC Standard
IEEE Standard
Ambient temperature
Creepage distance
MC HCLC
MICAFIL RIP TRANSFORMER BUSHINGS AIRRIP / RTKF 24–550 KV
11 MICAFIL RIP TRANSFORMER BUSHINGS AIRRIP / RTKF 24–550 KV 1413AIRRIP BUSHINGS 24–170 KV TYPES WITH CABLE CONDUCTOR12
Flange
Oil side end
Explanations of the table columns
3–6 Rated voltages according to IEC 60137 (2017)7–10 Rated voltages according to IEEE C57.19.01 (2000)11, 12 Maximum operating current Ir for the largest
cable cross-section, depending on the current transformer extension L6
13 Maximum thermal short-circuit current, 2 sec, after operation at maximum operating current
16 Bending test load, 1 min 17, 18 Maximum cantilever operating load and
permissible installation position (v = vertical, h = horizontal, …° from vertical)
21 Standard current transformer extension L6
24 Inner diameter of the central tube (∅d3)28, 29 Maximum head and shed diameter for silicone
composite insulator30, 31 Maximum head and shed diameter for
porcelain insulator34, 35 Sealing area40 Bushing length L, without air side terminal
and oil side shield41, 42 Standard terminal on air side43, 44 Optional terminal on air side45, 46 Standard design of oil side end47, 50 Optional design of oil side end
Flange detail
Bushings with cable conductor 24–170 kV Data for bushings with cable conductor 24–170 kV
Legend
1 Copper, bare (optional: nickel-plated, silver-plated)
2 Test tap
3 De-aeration
4 Earthing screws 2 × M12 / 180°
5 –
6 Sealing area
7 Removability (for connecting the transformer lead)
L6 Current transformer extension
All dimensions in mm, unless otherwise indicated
Fig.10
Fig.20
Fig.11
Fig.21 Fig.22
Fig.12
L16
∅d5
∅d3
50
∅D4
∅D3
2
4
3
30°
6×60°30°
∅D4
∅D3
2
4
3
22.5°
8×45°
2
4
3
∅D4
∅D3
15°
12×30°
Fig.1 Fig.2
1
∅D1
L16
±5
L2 (±
5)
c2(L
)
L6
∅D6 max.
∅D5
20
∅d2
c7
L4 c
able
bo
lts
L5 m
ax.
c7L1
6
∅d6
∅d5
∅d3
c7L1
6 20
∅d6
∅d5
7
∅d3
∅D8
∅D2
n×∅v
6
s
5×4
5°
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
Type and drawing Electrical characteristics Current Insulator data
Mechanical design Weights Oil side Air side Flange Air side terminal Oil side end
IEC 60137 (2017) IEEE C57.19.01(2000) Standard Variant Standard Variant 1 Variant 2
With silicone composite insulator
With porcelain insulator
Rate
d Vo
ltag
e U
m
Phas
e to
gro
und
Um
/√3
AC
tes
t vo
ltag
e d
ry /
wet
Lig
htni
ng im
pul
se v
olt
age,
1.
2/50
µs
Syst
em v
olt
age
Rat
ed m
ax.
line-
to-g
roun
d v
olt
age
AC
tes
t vo
ltag
e d
ry /
wet
Lig
htni
ng im
pul
se v
olt
age,
1.
2/50
µs
Max
imum
ope
rati
ng c
urre
nt
(inrespecttoCTextensionL6)
Wit
h co
pp
er c
able
sec
tio
n S
Ther
mal
sho
rt-t
ime
cu
rren
t It
h 2 s
ec.
Cre
epag
e d
ista
nce
(min
imum
)
Arc
ing
dis
tanc
e (m
inim
um)
Can
tile
ver
test
load
, 1 m
in.
Can
tile
ver
op
erat
ing
load
Inst
alla
tio
n (v
= v
erti
cal,
h
= ho
rizo
ntal
, …°
fro
m v
erti
cal)
Wit
h si
lico
ne c
om
po
site
in
sula
tor
Wit
h p
orc
elai
n in
sula
tor
Cur
rent
tra
nsfo
rmer
ext
ensi
on
Low
er c
ore
leng
th
(to
lera
nce
± 5
mm
)
Co
re d
iam
eter
Insi
de
tub
e d
iam
eter
Term
inal
: dis
tanc
e fr
om
the
fl
ang
e p
late
(to
lera
nce
± 5
mm
)
Cab
le b
olt
: d
ista
nce
fro
m t
he f
lang
e p
late
Hei
ght
of
head
(max
imum
)
Hea
d d
iam
eter
(wit
h si
lico
ne
com
po
site
insu
lato
r)
Max
. she
d d
iam
eter
(wit
h si
lico
ne c
om
po
site
insu
lato
r)
Hea
d d
iam
eter
(wit
h p
orc
elai
n in
sula
tor)
Max
. she
d d
iam
eter
(wit
h p
orc
elai
n in
sula
tor)
Pitc
h ci
rcle
dia
met
er
Out
sid
e fl
ang
e d
iam
eter
Seal
ing
are
a: m
in. d
iam
eter
Seal
ing
are
a: m
ax. d
iam
eter
Num
ber
of
hole
s
Ho
le d
iam
eter
Flan
ge
pla
te t
hick
ness
Fig
ure
Bus
hing
leng
th, w
itho
ut a
ir s
ide
term
inal
and
low
er s
hiel
d
Term
inal
dia
met
er
Leng
th o
f te
rmin
al
Term
inal
dia
met
er
Leng
th o
f te
rmin
al
Op
enin
g
Fig
ure
Op
enin
g
Fig
ure
Op
enin
g
Fig
ure
[kV] [kV] [kV] [kV] [kV] [kV] [kV] [kV] [A] [mm2] [kA] [mm] [mm] [N] [N] [kg] [kg] L6 L 16 D1 d3 L 2 L 4 L 5 D5 D6 D5 D6 D3 D4 D2 D8 n v s Fig L d2 c2 d2 c2 d5 Fig d5 Fig d5 Fig
RTKF 24–150/1250 KSI 1ZCD064001
RTKF 24–150/1250 1ZCD064051
24 14 55 / 50 /
125 25 16 60 / 50 /
150 155013801250
665
Ith 2
sec
. [kA
] = 0
.055
× S
[mm
2 ] if
S =
120
0 m
m2
Ith 2
sec
. [kA
] = 0
.045
× S
[mm
2 ] if
S =
280
0 m
m2
744 210 3 150 1 575 v–h 18 20 23
31 34 36
0300600
120 420 720
92 50 525 350 135 135 270 178 300 185 225 135 165 6 16 18 10 645 945
1 245
30 80 40 125 61 20 67 21a
RTKF 24–150/2500 KSI 1ZCD064002
RTKF 24–150/2500 1ZCD064052
24 14 55 / 50 /
125 25 16 60 / 50 /
150 250022002100
1 500 744 210 3 150 1 575 v–h 34 37 40
50 53 56
0300600
120 420 720
120 80 565 390 135 165 300 216 350 250 290 180 222 8 16 18 11 685 985
1 285
40 125 50 125 93 20
RTKF 24–150/3150 KSI 1ZCD064003
RTKF 24–150/3150 1ZCD064053
24 14 55 / 50 /
125 25 16 60 / 50 /
150 375032002880
2 800 744 210 3 150 1 575 v–h 46 50 54
65 69 73
0300600
120 420 720
144 100 575 400 145 200 322 245 380 290 335 205 261 12 16 18 12 695 995
1 295
60 125 50 125 113 20
RTKF 36–200/1250 KSI 1ZCD064004
RTKF 36–200/1250 1ZCD064054
36 21 77 / 70 /
170 34.5 22 80 / 75 /
200 150013301200
665 1 116 310 3 150 1 575 v–h 20 22 25
38 41 43
0300600
140 440 740
92 50 625 450 135 135 270 178 300 185 225 135 165 6 16 18 10 765 1 065 1 365
30 80 40 125 61 20 67 21a
RTKF 36–200/2500 KSI 1ZCD064005
RTKF 36–200/2500 1ZCD064055
36 21 77 / 70 /
170 34.5 22 80 / 75 /
200 250022002100
1 500 1 116 310 3 150 1 575 v–h 36 39 42
60 63 66
0300600
140 440 740
120 80 665 490 135 165 300 216 350 250 290 180 222 8 16 18 11 805 1 105 1 405
40 125 50 125 93 20
RTKF 36–200/3150 KSI 1ZCD064006
RTKF 36–200/3150 1ZCD064056
36 21 77 / 70 /
170 34.5 22 80 / 75 /
200 360031202840
2 800 1 116 310 3 150 1 575 v–h 49 53 57
77 81
85
0300600
140 440 740
144 100 675 500 145 200 322 245 380 290 335 205 261 12 16 18 12 815 1 115 1 415
60 125 50 125 113 20
RTKF 52–250/1250 KSI 1ZCD064007
RTKF 52–250/1250 1ZCD064057
52 30 105 / 95 /
250 46 29 105 / 95 /
250 155013801250
665 1 612 460 3 150 1 575 v–h 24 27 29
49 51 53
0300600
140 440 740
92 50 775 600 135 135 270 178 300 185 225 135 165 6 16 18 10 915 1 215 1 515
30 80 40 125 61 20 67 21a
RTKF 52–250/2000 KSI 1ZCD064008
RTKF 52–250/2000 1ZCD064058
52 30 105 / 95 /
250 46 29 105 / 95 /
250 210018501650
1 200 1 612 460 3 150 1 575 v–h 40 44 48
72 76 79
0300600
140 440 740
120 65 815 640 135 165 300 216 350 250 290 180 222 8 16 18 11 955 1 255 1 555
40 125 50 125 78 20 75 21b
RTKF 52–250/2500 KSI 1ZCD064009
RTKF 52–250/2500 1ZCD064059
52 30 105 / 95 /
250 46 29 105 / 95 /
250 260023002100
1 500 1 612 460 3 150 1 575 v–h 52 57 62
87 92 97
0300600
140 440 740
144 80 825 650 145 200 322 245 380 290 335 205 261 12 16 18 12 965 1 265 1 565
50 125 40 125 93 20
RTKF 72.5–350/1000 KSI 1ZCD064010
RTKF 72.5–350/1000 1ZCD064060
72.5 42 155 / 140 /
325 69 44 160 / 140 /
350 1000890800
400
Ith 2
sec
. [kA
] = 0
.06
× S
[mm
2 ] if
S ≤
700
mm
2 It
h 2 s
ec. [
kA] =
0.0
5 ×
S [m
m2 ]
if S
= 1
500
mm
2
2 248 630 3 150 1 575 v–h 30 33 35
63 65 68
0300600
175 475 775
92 40 975 800 165 135 270 178 300 185 225 135 165 6 16 18 10 1 150 1 450 1 750
30 80 51 20 67 21a 67 22b
RTKF 72.5–350/2000 KSI 1ZCD064011
RTKF 72.5–350/2000 1ZCD064061
72.5 42 155 / 140 /
325 69 44 160 / 140 /
350 200018001650
1 200 2 248 630 4 000 2 000 v–h 45 49 53
91 95 99
0300600
175 475 775
120 65 1 015 840 165 165 300 216 350 250 290 180 222 8 16 18 11 1 190 1 490 1 790
40 125 50 125 78 20 75 21b
RTKF 72.5–350/2500 KSI 1ZCD064012
RTKF 72.5–350/2500 1ZCD064062
72.5 42 155 / 140 /
325 69 44 160 / 140 /
350 250022302040
1 500 2 248 630 4 000 2 000 v–h 60 65 70
110 115 120
0300600
175 475 775
144 80 1 025 850 175 200 322 245 380 290 335 205 261 12 16 18 12 1 200 1 500 1 800
40 125 50 125 93 20
RTKF 123–550/800 KSI 1ZCD064013
RTKF 123–550/800 1ZCD064063
123 71 255 / 230 /
550 92 TR
73 185 / 155 /
450 920830770
400 3 813 1 010 4 000 2 000 v–h 62 66 70
132 136 141
0300600
310 610 910
120 40 1 395 1 220 165 165 300 216 350 250 290 180 222 8 16 18 11 1 705 2 005 2 305
30 80 67 21a 107 22b
RTKF 123–550/1600 KSI 1ZCD064014
RTKF 123–550/1600 1ZCD064064
123 71 255 / 230 /
550 92 TR
73 185 / 155 /
450 194017501600
1 200 3 813 1 010 4 000 2 000 v–h 79 85 90
156 162 167
0300600
310 610 910
144 65 1 405 1 230 175 200 322 245 380 290 335 205 261 12 16 18 12 1 715 2 015 2 315
40 125 50 125 75 21b 140 22c
RTKF 145–650/1250 KSI 1ZCD064015
RTKF 145–650/1250 1ZCD064065
145 84 305 / 275 /
650 138 88 310 / 275 /
650 140012601160
665 4 495 1 170 4 000 2 000 v–30° 87 93 99
173 179 185
0300600
360 660 960
144 50 1 565 1 390 175 200 322 245 380 290 335 205 261 12 16 18 12 1 925 2 225 2 525
30 80 40 125 75 21b 107 22b
RTKF 145–650/2000 KSI 1ZCD064016
RTKF 145–650/2000 1ZCD064066
145 84 305 / 275 /
650 138 88 310 / 275 /
650 200018401730
1 500 4 495 1 170 4 000 2 000 v–h 130 139 148
245 255 264
0300600
360 660 960
185 80 1 585 1 410 175 245 370 315 450 400 450 245 365 12 20 22 12 1 945 2 245 2 545
40 125 50 125 140 22a 140 22c
RTKF 170–750/800 KSI 1ZCD064017
RTKF 170–750/800 1ZCD064067
170 98 355 / 325 /
750 161 102 365 / 315 /
750 880805755
400 5 270 1 400 5 000 2 500 v–30° 100 106 112
203 209 215
0300600
420 720
1 020
144 40 1 795 1 620 175 200 322 245 380 290 335 205 261 12 16 18 12 2 215 2 515 2 815
30 80 75 21b 107 22b
RTKF 170–750/1600 KSI 1ZCD064018
RTKF 170–750/1600 1ZCD064068
170 98 355 / 325 /
750 161 102 365 / 315 /
750 190018001700
1 500 5 270 1 400 5 000 2 500 v–h 145 154 163
282 291 300
0300600
420 720
1 020
185 80 1 815 1 640 175 245 370 315 450 400 450 245 365 12 20 22 12 2 235 2 535 2 835
40 125 50 125 140 22a 140 22c
—AirRIP bushings 24–170 kVTypes with cable conductor
1
∅d2
∅D1
L16
±5
L2 (±
5)
c2(L
)
L6
∅D6 max.
∅D5
20
L5 m
ax.
L4 c
able
bo
lts
LC
Fig22 d6 c7
22a 180 170
22b 160 200
22c 180 200
Fig21 d6 c7
21a 109 83
21b 134 93
16 1715 18MICAFIL TRANSFORMER BUSHINGS AIRRIP / RTKF 24–550 KV
Bushings with rod conductor 24–170 kV Data for bushings with rod conductor 24–170 kV
Fig.3 Fig.4
Fig.22
∅d2
∅D1
L16
±5
L2 (±
5)
L5 max.
c2(L
)
L6
∅D6 max.
∅D5
20
1 1
∅D1
L16
±5
L2 (±
5)
L5 max.
c2(L
)
L6
∅D6 max.
∅D5
20
∅d2
c7
c7L1
6 20
∅d6
∅d5
7
∅d3
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
Type and drawing Electrical characteristics Current Insulator data
Mechanical design Weights Oil side Air side Flange Air side terminal Oil side end
IEC 60137 (2017) IEEE C57.19.01 (2000) Standard Variant Standard Variant 1 Variant 2
With silicone composite insulator
With porcelain insulator
Rate
d Vo
ltag
e U
m
Phas
e to
gro
und
Um
/√3
AC
tes
t vo
ltag
e d
ry /
wet
Lig
htni
ng im
pul
se v
olt
age,
1.
2/50
µs
Syst
em v
olt
age
Rat
ed m
ax.
line-
to-g
roun
d v
olt
age
AC
tes
t vo
ltag
e d
ry /
wet
Lig
htni
ng im
pul
se v
olt
age,
1.
2/50
µs
Max
imum
ope
rati
ng c
urre
nt
(inrespecttoCTextensionL6)
Ther
mal
sho
rt-t
ime
cu
rren
t It
h 2 s
ec.
Cre
epag
e d
ista
nce
(min
imum
)
Arc
ing
dis
tanc
e (m
inim
um)
Can
tile
ver
test
load
, 1 m
in.
Can
tile
ver
op
erat
ing
load
Inst
alla
tio
n (v
= v
erti
cal,
h
= ho
rizo
ntal
, …°
fro
m v
erti
cal)
Wit
h si
lico
ne c
om
po
site
in
sula
tor
Wit
h p
orc
elai
n in
sula
tor
Cur
rent
tra
nsfo
rmer
ext
ensi
on
Low
er c
ore
leng
th
(to
lera
nce
± 5
mm
)
Co
re d
iam
eter
Insi
de
tub
e d
iam
eter
Term
inal
: dis
tanc
e fr
om
the
fl
ang
e p
late
(to
lera
nce
± 5
mm
)
Hei
ght
of
head
(max
imum
)
Hea
d d
iam
eter
(wit
h si
lico
ne
com
po
site
insu
lato
r)
Max
. she
d d
iam
eter
(wit
h si
lico
ne c
om
po
site
insu
lato
r)
Hea
d d
iam
eter
(wit
h p
orc
elai
n in
sula
tor)
Max
. she
d d
iam
eter
(wit
h p
orc
elai
n in
sula
tor)
Pitc
h ci
rcle
dia
met
er
Out
sid
e fl
ang
e d
iam
eter
Seal
ing
are
a: m
in. d
iam
eter
Seal
ing
are
a: m
ax. d
iam
eter
Num
ber
of
hole
s
Ho
le d
iam
eter
Flan
ge
pla
te t
hick
ness
Fig
ure
Bus
hing
leng
th, w
itho
ut a
ir s
ide
term
inal
and
low
er s
hiel
d
Term
inal
dia
met
er
Leng
th o
f te
rmin
al
Term
inal
dia
met
er
Leng
th o
f te
rmin
al
Op
enin
g
Fig
ure
Op
enin
g
Fig
ure
Op
enin
g
Fig
ure
[kV] [kV] [kV] [kV] [kV] [kV] [kV] [kV] [A] [A] [mm] [mm] [N] [N] [kg] [kg] L6 L 16 D1 d3 L 2 L 5 D5 D6 D5 D6 D3 D4 D2 D8 n v s Fig L d2 c2 d2 c2 d5 Fig d5 Fig d5 Fig
RTKF 24–150/2000 B KSI 1ZCD064001
RTKF 24–150/2000 B 1ZCD064051
24 14 55 / 50 125 25 16 60 / 50 150 235021001850
Ith 2
sec
. = 2
5 ×
Ir
744 210 3 150 1 575 v–h 27 33 39
40 46 53
0300600
120 420 720
92 50 525 135 135 270 178 300 185 225 135 165 6 16 18 10 645 945
1 245
40 125 61 20
RTKF 24–150/3150 B KSI 1ZCD064002
RTKF 24–150/3150 B 1ZCD064052
24 14 55 / 50 125 25 16 60 / 50 150 360032002850
744 210 3 150 1 575 v–h 57 72 87
74 88
103
0300600
120 420 720
120 80 565 135 165 300 216 350 250 290 180 222 8 16 18 11 685 985
1 285
60 125 50 125 93 20
RTKF 24–150/5000 B KSI 1ZCD064003
RTKF 24–150/5000 B 1ZCD064053
24 14 55 / 50 125 25 16 60 / 50 150 500043003850
744 210 3 150 1 575 v–h 66 80 94
84 98
112
0300600
120 420 720
144 100 575 145 200 322 245 380 290 335 205 261 12 16 18 12 695 995
1 295
F90 105 113 20
RTKF 36–200/2000 B KSI 1ZCD064004
RTKF 36–200/2000 B 1ZCD064054
36 21 77 / 70 170 34.5 22 80 / 75 200 230020501800
1 116 310 3 150 1 575 v–h 30 37 43
49 55 61
0300600
140 440 740
92 50 625 135 135 270 178 300 185 225 135 165 6 16 18 10 765 1 065 1 365
40 125 61 20
RTKF 36–200/3150 B KSI 1ZCD064005
RTKF 36–200/3150 B 1ZCD064055
36 21 77 / 70 170 34.5 22 80 / 75 200 350031502850
1 116 310 3 150 1 575 v–h 64 79 94
88 103 118
0300600
140 440 740
120 80 665 135 165 300 216 350 250 290 180 222 8 16 18 11 805 1 105 1 405
60 125 50 125 93 20
RTKF 36–200/4000 B KSI 1ZCD064006
RTKF 36–200/4000 B 1ZCD064056
36 21 77 / 70 170 34.5 22 80 / 75 200 480042003800
1 116 310 3 150 1 575 v–h 73 87
101
100 114 128
0300600
140 440 740
144 100 675 145 200 322 245 380 290 335 205 261 12 16 18 12 815 1 115 1 415
F90 105 113 20
RTKF 52–250/2000 B KSI 1ZCD064007
RTKF 52–250/2000 B 1ZCD064057
52 30 105 / 95 250 46 29 105 / 95 250 225020001750
1 612 460 3 150 1 575 v–h 37 43 49
61 68
74
0300600
140 440 740
92 50 775 135 135 270 178 300 185 225 135 165 6 16 18 10 915 1 215 1 515
40 125 61 20
RTKF 52–250/2500 B KSI 1ZCD064008
RTKF 52–250/2500 B 1ZCD064058
52 30 105 / 95 250 46 29 105 / 95 250 280024702200
1 612 460 3 150 1 575 v–h 63 74 85
94 105 117
0300600
140 440 740
120 65 815 135 165 300 216 350 250 290 180 222 8 16 18 11 955 1 255 1 555
50 125 40 125 78 20
RTKF 52–250/3150 B KSI 1ZCD064009
RTKF 52–250/3150 B 1ZCD064059
52 30 105 / 95 250 46 29 105 / 95 250 350031002850
1 612 460 3 150 1 575 v–h 87 104 120
122 139 155
0300600
140 440 740
144 80 825 145 200 322 245 380 290 335 205 261 12 16 18 12 965 1 265 1 565
60 125 50 125 93 20
RTKF 72.5–350/1600 B KSI 1ZCD064010
RTKF 72.5–350/1600 B 1ZCD064060
72.5 42 155 / 140 325 69 44 160 / 140 350 175015801430
2 248 630 3 150 1 575 v–h 41 46 52
73 79 84
0300600
175 475 775
92 40 975 165 135 270 178 300 185 225 135 165 6 16 18 10 1 150 1 450 1 750
30 80 51 20 107 22b
RTKF 72.5–350/2500 B KSI 1ZCD064011
RTKF 72.5–350/2500 B 1ZCD064061
72.5 42 155 / 140 325 69 44 160 / 140 350 265023802150
2 248 630 4 000 2 000 v–h 73 84 95
119 130 141
0300600
175 475 775
120 65 1 015 165 165 300 216 350 250 290 180 222 8 16 18 11 1 190 1 490 1 790
50 125 40 125 78 20
RTKF 72.5–350/3150 B KSI 1ZCD064012
RTKF 72.5–350/3150 B 1ZCD064062
72.5 42 155 / 140 325 69 44 160 / 140 350 340030502780
2 248 630 4 000 2 000 v–h 104 121 138
153 170 187
0300600
175 475 775
144 80 1 025 175 200 322 245 380 290 335 205 261 12 16 18 12 1 200 1 500 1 800
60 125 50 125 93 20
RTKF 123–550/1600 B KSI 1ZCD064013
RTKF 123–550/1600 B 1ZCD064063
123 71 255 / 230 550 92 TR 73 185 / 155 450 167015201370
3 813 1 010 4 000 2 000 v–h 80 87 94
150 157 165
0300600
310 610 910
120 40 1 395 165 165 300 216 350 250 290 180 222 8 16 18 11 1 705 2 005 2 305
30 80 107 22b
RTKF 123–550/2500 B KSI 1ZCD064014
RTKF 123–550/2500 B 1ZCD064064
123 71 255 / 230 550 92 TR 73 185 / 155 450 261023702180
3 813 1 010 4 000 2 000 v–h 121 134 147
198 211 224
0300600
310 610 910
144 65 1 405 175 200 322 245 380 290 335 205 261 12 16 18 12 1 715 2 015 2 315
50 125 40 125 140 22c
RTKF 145–650/2000 B KSI 1ZCD064015
RTKF 145–650/2000 B 1ZCD064065
145 84 305 / 275 650 138 88 310 / 275 650 200018001670
4 495 1 170 4 000 2 000 v–30° 114 125 135
201 211 221
0300600
360 660 960
144 50 1 565 175 200 322 245 380 290 335 205 261 12 16 18 12 1 925 2 225 2 525
40 125 107 22b
RTKF 145–650/2500 B KSI 1ZCD064016
RTKF 145–650/2500 B 1ZCD064066
145 84 305 / 275 650 138 88 310 / 275 650 290027202550
4 495 1 170 4 000 2 000 v–h 203 224 245
318 339 360
0300600
360 660 960
185 80 1 585 175 245 370 315 450 400 450 245 365 12 20 22 12 1 945 2 245 2 545
50 125 140 22a 140 22c
RTKF 170–750/1250 B KSI 1ZCD064017
RTKF 170–750/1250 B 1ZCD064067
170 98 355 / 325 750 161 102 365 / 315 750 136012501170
5 270 1 400 5 000 2 500 v–30° 122 132 141
226 235 244
0300600
420 720
1 020
144 40 1 795 175 200 322 245 380 290 335 205 261 12 16 18 12 2 215 2 515 2 815
30 80 107 22b
RTKF 170–750/2500 B KSI 1ZCD064018
RTKF 170–750/2500 B 1ZCD064068
170 98 355 / 325 750 161 102 365 / 315 750 280026202450
5 270 1 400 5 000 2 500 v–h 230 250 271
366 387 407
0300600
420 720
1 020
185 80 1 815 175 245 370 315 450 400 450 245 365 12 20 22 12 2 235 2 535 2 835
50 125 140 22a 140 22c
All dimensions in mm, unless otherwise indicated
AIRRIP BUSHINGS 24–170 KV TYPES WITH ROD CONDUCTOR
Legend
1 Copper, bare (optional: nickel-plated, silver-plated)
2 Test tap
3 De-aeration
4 Earthing screws 2 × M12 / 180°
5 –
6 Sealing area
7 Removability (for connecting the transformer lead)
L6 Current transformer extension
MC
Flange Flange detail
Fig.10 Fig.11 Fig.12
∅D4
∅D3
2
4
3
30°
6×60°30°
∅D4
∅D3
2
4
3
22.5°
8×45°
2
4
3
∅D4
∅D3
15°
12×30°
∅D8
∅D2
n×∅v
6
s
5×4
5°
Oil side end
Fig.20
L16
∅d5
∅d3
50
Fig22 d6 c7
22a 180 170
22b 160 200
22c 180 200
∅d3* ∅d4 Standard Var.1 Var.2 flat thread round
thickness holes a1 n × ∅g1 thread × c1 d1 × c1
40 38 20 2 × ∅14 30 × 85
50 45 20 2 × ∅18 M36×3 × 60 40 × 85
65 60 30 2 × ∅18 M42×3 × 80 50 × 85
80 75 30 2 × ∅18 50 × 85
100 95 30 4 × ∅18
* See column 23 of the data table
Oil side terminal
Optional splitting of the rod conductorDetermine whether the rod conductor should be split or not. Rod conductors are split 20 mm below the base plate and have the following characteristics:
∅d3* ∅d4 screws lengthe1
40 38 2 × M8 80
50 45 3 × M10 110
65 60 3 × M10 110
80 75 3 × M12 130
100 95 6 × M12 130
* See column 23 of the data table
Air side terminal Standard terminals as per columns 39/40, variants as per columns 41/42.
Guidelines for the terminal dimensions:
Max.operatingcurrent(A) d2 c2
1,600 30 80
2,500 40 125
3,500 50 125
4,300 60 125
5,000 flat 90 × 105 thickness 30
Determination of the rod conductor
L: Bushing length, without airside terminal and lower shield, see column 38 of the data table
—AirRIP bushings 24–170 kVTypes with rod conductor
∅d2
c2c1
L
∅d4
30
∅18105 50
L2
25 40
90
20 e1
30 a130
30 a130
Var.1:thread Var.2:round
Standard: flat
∅d4
∅g1
40
∅d4
∅g14020
4020
L16
85
30
85
30L16
L16 L16
d1
∅d4
d1G
c1
30
15⁰
10c1
30
∅d4
∅d4
∅g1
40
∅d4
∅g14020
4020
L16
85
30
85
30L16
L16 L16
d1
∅d4
d1G
c1
30
15⁰
10c1
30
∅d4
30 a130
30 a130
In=5000A
2019 MICAFIL RIP TRANSFORMER BUSHINGS AIRRIP / RTKF 24–550 KV
30 50
∅d4
∅18 8530
40
20L1
6
30 40
∅d4
∅18 8530
40
20L1
6
2221AIRRIP BUSHINGS 24–170 KV TYPES WITH FIXED CONDUCTOR
Flange
Oil side end
Oil side
Air sideExplanations of the table columns
3–6 Rated voltages according to IEC 60137 (2017)7–10 Rated voltages according to IEEE C57.19.01 (2000)11 Maximum operating current Ir as a function of
the current transformer extension L612 Maximum thermal short-circuit current, 2 sec,
after operation at maximum operating current15 Bending test load, 1 min 16, 17 Maximum cantilever operating load and
permissible installation position (v = vertical, h = horizontal, …° from vertical)
25, 26 Maximum head and shed diameter for silicone composite insulator
27, 28 Maximum head and shed diameter for porcelain insulator
31, 32 Sealing area37 Bushing length L, without air side terminal
and oil side shield38, 39 Standard terminal on air side40, 41 Standard design of oil side terminal42, 43 Standard design of oil side end44, 45 Optional design of oil side end
Flange detail
Data for bushings with fixed conductor 24–170 kVBushings with fixed conductor 24–170 kV
Fig.10
Fig.24
Fig.30a Fig.30b
Fig.11
Fig.31bFig.31a
Fig.12
∅D1
L16
±5
L2 (±
5)
L5 max.
c2(L
)
L6
∅D6 max.
∅D5
20
∅d2
c7
1
∅d2
∅D1
L16
±5
L2 (±
5)
L5 max.
c2(L
)
L6
∅D6 max.
20
∅D5
1
30°
6×60°30°
2
4
3
∅D4
∅D3
22.5°
8×45°
∅D4
∅D3
2
4
3
c7L1
6 20
∅d6
∅d5
7
30 ∅d4
∅18 8530
40
20L1
6
20 ∅d4
∅18 8530
40
20L1
6
15°
12×30°
2
4
3
∅D4
∅D3
Fig.3 Fig.4d2
∅18
105
50
L2
25
4030 a130
30 a130
In=5000A
∅D8
∅D2
n×∅v
6
s
5×4
5°
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45
Type and drawing Electrical characteristics Current Insulator data
Mechanical design Weights Oil side Air side Flange Air side terminal
Oil side terminal
Oil side end
IEC 60137 (2017) IEEE C57.19.01 (2000) Standard Standard Standard Variant 1
With silicone composite insulator
With porcelain insulator
Rate
d Vo
ltag
e U
m
Phas
e to
gro
und
Um
/√3
AC
tes
t vo
ltag
e d
ry /
wet
Lig
htni
ng im
pul
se v
olt
age,
1.
2/50
µs
Syst
em v
olt
age
Rat
ed m
ax.
line-
to-g
roun
d v
olt
age
AC
tes
t vo
ltag
e d
ry /
wet
Lig
htni
ng im
pul
se v
olt
age,
1.
2/50
µs
Max
imum
ope
rati
ng
curr
ent
(in
resp
ect
to C
T extensionL6)
Ther
mal
sho
rt-t
ime
cu
rren
t It
h 2 s
ec.
Cre
epag
e d
ista
nce
(min
imum
)
Arc
ing
dis
tanc
e (m
inim
um)
Can
tile
ver
test
load
, 1 m
in.
Can
tile
ver
op
erat
ing
load
Inst
alla
tio
n (v
= v
erti
cal,
h
= ho
rizo
ntal
, …°
fro
m
vert
ical
)
Wit
h si
lico
ne c
om
po
site
in
sula
tor
Wit
h p
orc
elai
n in
sula
tor
Cur
rent
tra
nsfo
rmer
ex
tens
ion
Low
er c
ore
leng
th
(to
lera
nce
± 5
mm
)
Co
re d
iam
eter
Term
inal
: dis
tanc
e fr
om
th
e fl
ang
e p
late
(to
lera
nce
±
5 m
m)
Hei
ght
of
head
(max
imum
)
Hea
d d
iam
eter
(wit
h si
lico
ne
com
po
site
insu
lato
r)
Max
. she
d d
iam
eter
(wit
h si
lico
ne c
om
po
site
insu
lato
r)
Hea
d d
iam
eter
(wit
h p
orc
elai
n in
sula
tor)
Max
. she
d d
iam
eter
(wit
h p
orc
elai
n in
sula
tor)
Pitc
h ci
rcle
dia
met
er
Out
sid
e fl
ang
e d
iam
eter
Seal
ing
are
a: m
in. d
iam
eter
Seal
ing
are
a: m
ax. d
iam
eter
Num
ber
of
hole
s
Ho
le d
iam
eter
Flan
ge
pla
te t
hick
ness
Fig
ure
Bus
hing
leng
th, w
itho
ut a
ir
sid
e te
rmin
al a
nd lo
wer
shi
eld
Term
inal
dia
met
er
Leng
th o
f te
rmin
al
Term
inal
wid
th
Fig
ure
Op
enin
g
Fig
ure
Op
enin
g
Fig
ure
[kV] [kV] [kV] [kV] [kV] [kV] [kV] [kV] [A] [A] [mm] [mm] [N] [N] [kg] [kg] L6 L 16 D1 L 2 L 5 D5 D6 D5 D6 D3 D4 D2 D8 n v s Fig L d2 c2 d4 Fig d5 Fig d5 Fig
RTKF 24–150/2500 F KSI 1ZCD064026
RTKF 24–150/2500 F 1ZCD064076
24 14 55 / 50 125 25 16 60 / 50 150 305026502400
Ith2
sec
. = 2
5 ×
Ir
744 210 3 150 1 575 v–h 34 4453
47 57 66
0300600
120 420 720
92 498 108 135 270 178 300 185 225 135 165 6 16 18 10 618 918
1 218
50 125 52 30a 30a
RTKF 24–150/4000 F KSI 1ZCD064027
RTKF 24–150/4000 F 1ZCD064077
24 14 55 / 50 125 25 16 60 / 50 150 420038003500
744 210 3 150 1 575 v–h 72 92
112
88 108 128
0300600
120 420 720
120 538 108 165 300 216 350 250 290 180 222 8 16 18 11 658 958
1 258
60 125 80 31a 31a
RTKF 24–150/5000 F KSI 1ZCD064028
RTKF 24–150/5000 F 1ZCD064078
24 14 55 / 50 125 25 16 60 / 50 150 520045004100
744 210 3 150 1 575 v–h 73 89
104
92 107 122
0300600
120 420 720
144 548 118 200 322 245 380 290 335 205 261 12 16 18 12 668 968
1 268
F90 105 100 31b 31b
RTKF 36–200/2500 F KSI 1ZCD064029
RTKF 36–200/2500 F 1ZCD064079
36 21 77 / 70 170 34.5 22 80 / 75 200 300026002350
1 116 310 3 150 1 575 v–h 39 49 58
57 67 76
0300600
140 440 740
92 598 108 135 270 178 300 185 225 135 165 6 16 18 10 738 1 038 1 338
50 125 52 30a 30a
RTKF 36–200/4000 F KSI 1ZCD064030
RTKF 36–200/4000 F 1ZCD064080
36 21 77 / 70 170 34.5 22 80 / 75 200 415037503450
1 116 310 3 150 1 575 v–h 81 101 121
105 124 144
0300600
140 440 740
120 638 108 165 300 216 350 250 290 180 222 8 16 18 11 778 1 078 1 378
60 125 80 31a 31a
RTKF 36–200/5000 F KSI 1ZCD064031
RTKF 36–200/5000 F 1ZCD064081
36 21 77 / 70 170 34.5 22 80 / 75 200 515045004100
1 116 310 3 150 1 575 v–h 81 96
111
108 123 139
0300600
140 440 740
144 648 118 200 322 245 380 290 335 205 261 12 16 18 12 788 1 088 1 388
F90 105 100 31b 31b
RTKF 52–250/2500 F KSI 1ZCD064032
RTKF 52–250/2500 F 1ZCD064082
52 30 105 / 95 250 46 29 105 / 95 250 284025202300
1 612 460 3 150 1 575 v–h 47 56 66
71 81
90
0300600
140 440 740
92 748 108 135 270 178 300 185 225 135 165 6 16 18 10 888 1 188 1 488
50 125 52 30a 30a
RTKF 52–250/3150 F KSI 1ZCD064033
RTKF 52–250/3150 F 1ZCD064083
52 30 105 / 95 250 46 29 105 / 95 250 340030002680
1 612 460 3 150 1 575 v–h 77 92
107
108 123 138
0300600
140 440 740
120 788 108 165 300 216 350 250 290 180 222 8 16 18 11 928 1 228 1 528
50 125 65 30a 30a
RTKF 52–250/4000 F KSI 1ZCD064034
RTKF 52–250/4000 F 1ZCD064084
52 30 105 / 95 250 46 29 105 / 95 250 425038003500
1 612 460 3 150 1 575 v–h 81 95
109
116 130 144
0300600
140 440 740
144 798 118 200 322 245 380 290 335 205 261 12 16 18 12 938 1 238 1 538
60 125 80 31a 31a
RTKF 72.5–350/2000 F KSI 1ZCD064035
RTKF 72.5–350/2000 F 1ZCD064085
72.5 42 155 / 140 325 69 44 160 / 140 350 220019501800
2 248 630 3 150 1 575 v–h 49 57 64
82 89 97
0300600
175 475 775
92 948 138 135 270 178 300 185 225 135 165 6 16 18 10 1 123 1 423 1 723
40 125 45 30b 30b 107 24a
RTKF 72.5–350/3150 F KSI 1ZCD064036
RTKF 72.5–350/3150 F 1ZCD064086
72.5 42 155 / 140 325 69 44 160 / 140 350 325029502700
2 248 630 4 000 2 000 v–h 91 106 121
137 152 167
0300600
175 475 775
120 988 138 165 300 216 350 250 290 180 222 8 16 18 11 1 163 1 463 1 763
50 125 65 30a 30a
RTKF 72.5–350/4000 F KSI 1ZCD064037
RTKF 72.5–350/4000 F 1ZCD064087
72.5 42 155 / 140 325 69 44 160 / 140 350 410037003400
2 248 630 4 000 2 000 v–h 96 110 124
145 159 173
0300600
175 475 775
144 998 148 200 322 245 380 290 335 205 261 12 16 18 12 1 173 1 473 1 773
60 125 80 31a 31a
RTKF 123–550/2000 F KSI 1ZCD064038
RTKF 123–550/2000 F 1ZCD064088
123 71 255 / 230 550 92 TR 73 185 / 155 450 225021002000
3 813 1 010 4 000 2 000 v–h 92 101 110
162 171 181
0300600
310 610 910
120 1 368 138 165 300 216 350 250 290 180 222 8 16 18 11 1 678 1 978 2 278
40 125 45 30b 107 24a
RTKF 123–550/3150 F KSI 1ZCD064039
RTKF 123–550/3150 F 1ZCD064089
123 71 255 / 230 550 92 TR 73 185 / 155 450 315029002700
3 813 1 010 4 000 2 000 v–h 172 189 206
249 266 283
0300600
310 610 910
144 1 378 148 200 322 245 380 290 335 205 261 12 16 18 12 1 688 1 988 2 288
50 125 65 30a 140 24b
RTKF 145–650/2000 F KSI 1ZCD064040
RTKF 145–650/2000 F 1ZCD064090
145 84 305 / 275 650 138 88 310 / 275 650 242022302100
4 495 1 170 4 000 2 000 v–30° 135 148 161
221 234 247
0300600
360 660 960
144 1 538 148 200 322 245 380 290 335 205 261 12 16 18 12 1 898 2 198 2 498
40 125 52 30a 107 24a
RTKF 145–650/3150 F KSI 1ZCD064041
RTKF 145–650/3150 F 1ZCD064091
145 84 305 / 275 650 138 88 310 / 275 650 360033803150
4 495 1 170 4 000 2 000 v–h 187 205 224
303 321 339
0300600
360 660 960
185 1 558 148 245 370 315 450 400 450 245 365 12 20 22 12 1 918 2 218 2 518
60 125 80 31a 140 24b
RTKF 170–750/2000 F KSI 1ZCD064042
RTKF 170–750/2000 F 1ZCD064092
170 98 355 / 325 750 161 102 365 / 315 750 210020001900
5 270 1 400 5 000 2 500 v–30° 138 149 160
241 252 263
0300600
420 720
1 020
144 1 768 148 200 322 245 380 290 335 205 261 12 16 18 12 2 188 2 488 2 788
40 125 45 30b 107 24a
RTKF 170–750/3150 F KSI 1ZCD064043
RTKF 170–750/3150 F 1ZCD064093
170 98 355 / 325 750 161 102 365 / 315 750 350032803050
5 270 1 400 5 000 2 500 v–h 212 229 247
348 366 384
0300600
420 720
1 020
185 1 788 148 245 370 315 450 400 450 245 365 12 20 22 12 2 208 2 508 2 808
60 125 80 31a 140 24b
All dimensions in mm, unless otherwise indicated
Legend
1 Copper, bare (optional: nickel-plated, silver-plated)
2 Test tap
3 De-aeration
4 Earthing screws 2 × M12 / 180°
5 –
6 Sealing area
7 Removability (for connecting the transformer lead)
L6 Current transformer extension
HC
Fig24 d6 c7
24a 160 200
24b 180 200
—AirRIP bushings 24–170 kVTypes with fixed conductor
2423 MICAFIL RIP TRANSFORMER BUSHINGS AIRRIP / RTKF 24–550 KV 2625AIRRIP BUSHINGS 245–550 KV TYPES WITH CABLE CONDUCTOR
Flange
Oil side end
Bushings with cable conductor 245–550 kVExplanations of the table columns
3–7 Rated voltages according to IEC 60137 (2017)8–12 Rated voltages according to IEEE C57.19.01 (2000)13, 14 Maximum operating current for the largest cable
cross-section, depending on the current transformer extension L6
15 Maximum thermal short-circuit current, 2 sec, after operation at maximum operating current
18 Bending test load, 1 min 19, 20 Maximum cantilever operating load and
permissible installation position (v = vertical, h = horizontal, …° from vertical)
23 Standard current transformer extension L6
26 Inner diameter of the central tube (∅ d3)30, 31 Maximum head and shed diameter for silicone
composite insulator32, 33 Maximum head and shed diameter for
porcelain insulator36, 37 Sealing area42 Bushing length L, without air side terminal
and oil side shield43, 44 Standard terminal on air side45, 46 Optional terminal on air side47, 48 Standard design of oil side end49, 50 Optional design of oil side end
Flange detail
Data for bushings with cable conductor 245–550 kV
Fig.12 Fig.13 Fig.14
Fig.5 Fig.6
2
4
3
∅D4
∅D3
15°
12×30°
15°
12×30°
30°
2
5
3
4
∅D4
∅D3
22.5°
16×22.5°
∅D3
2
4
3
511.25°
∅D4
∅d2
L16
±5
L2 (±
5)
c2(L
)
L6
∅D1
∅D5
20
c7
L4 c
able
bo
lts
L5
max
.
1
∅D6 max.
1
L16
±5
L2 (±
5)
(L)
L6 ∅D1
∅D6 max.
∅D5
20
∅d2
c7
L4 c
able
bo
lts
L5
max
.
c2
∅D8
∅D2
n×∅v
6
s
5×4
5°
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
Type and drawing Electrical characteristics Current Insulator data
Mechanical design Weights Oil side Air side Flange Air side terminal Oil side end
IEC 60137 (2017) IEEE C57.19.01 (2000) Standard. Variant Standard Variant 1
With silicone composite insulator
With porcelain insulator
Rate
d V
olta
ge U
m
Phas
e to
gro
und
Um
/√3
AC
tes
t vo
ltag
e d
ry /
wet
Lig
htni
ng im
pul
se v
olt
age,
1.
2/50
µs
Swit
chin
g im
pul
se v
olt
age
250/
2500
µs
Syst
em v
olt
age
Rat
ed m
ax.
line-
to-g
roun
d v
olt
age
AC
tes
t vo
ltag
e d
ry /
wet
Lig
htni
ng im
pul
se v
olt
age,
1.
2/50
µs
Swit
chin
g im
pul
se v
olt
age
250/
2500
µs
Max
imum
ope
rati
ng c
urre
nt
(inrespecttoCTextensionL6)
Wit
h co
pp
er c
able
sec
tio
n S
Ther
mal
sho
rt-t
ime
curr
ent
Ith 2
sec
.
Cre
epag
e d
ista
nce
(min
imum
)
Arc
ing
dis
tanc
e (m
inim
um)
Can
tile
ver
test
load
, 1 m
in.
Can
tile
ver
op
erat
ing
load
Inst
alla
tio
n (v
= v
erti
cal,
h
= ho
rizo
ntal
, …°
fro
m v
erti
cal)
Wit
h si
lico
ne c
om
po
site
insu
lato
r
Wit
h p
orc
elai
n in
sula
tor
Cur
rent
tra
nsfo
rmer
ext
ensi
on
Low
er c
ore
leng
th
(to
lera
nce
± 5
mm
)
Co
re d
iam
eter
Insi
de
tub
e d
iam
eter
Term
inal
: dis
tanc
e fr
om
the
fl
ang
e p
late
(to
lera
nce
± 5
mm
)
Cab
le b
olt
: d
ista
nce
fro
m t
he f
lang
e p
late
Hei
ght
of
head
(max
imum
)
Hea
d d
iam
eter
(wit
h si
lico
ne
com
po
site
insu
lato
r)
Max
. she
d d
iam
eter
(wit
h si
lico
ne
com
po
site
insu
lato
r)
Hea
d d
iam
eter
(wit
h p
orc
elai
n in
sula
tor)
Max
. she
d d
iam
eter
(wit
h p
orc
elai
n in
sula
tor)
Pitc
h ci
rcle
dia
met
er
Out
sid
e fl
ang
e d
iam
eter
Seal
ing
are
a: m
in. d
iam
eter
Seal
ing
are
a: m
ax. d
iam
eter
Num
ber
of
hole
s
Ho
le d
iam
eter
Flan
ge
pla
te t
hick
ness
Fig
ure
Bus
hing
leng
th, w
itho
ut a
ir s
ide
term
inal
and
low
er s
hiel
d
Term
inal
dia
met
er
Leng
th o
f te
rmin
al
Term
inal
dia
met
er
Leng
th o
f te
rmin
al
Op
enin
g
Fig
ure
Op
enin
g
Fig
ure
[kV] [kV] [kV] [kV] [kV] [kV] [kV] [kV] [kV] [kV] [A] [kA] [mm] [mm] [N] [N] [kg] [kg] L6 L 16 D1 d3 L 2 L 4 L 5 D5 D6 D5 D6 D3 D4 D2 D8 n v s Fig L d2 c2 d2 c2 d5 Fig d5 Fig
RTKF 245–1050/1000 KSI 1ZCD064019
RTKF 245–1050/1000 1ZCD064069
245 141 505 / 460
1 050 750 230 146 425 / 350
900 750 1030880820
665
See
foo
tno
te *
7 595 2 050 5 000 2 500 v–30° 190 200 209
376 386 396
0 300600
590 890
1 190
185 50 2 465 2 290 175 245 370 315 450 400 450 245 365 12 20 22 12 3 055 3 355 3 655
30 80 40 125 95 21c 140 22c
RTKF 245–1050/1600 KSI 1ZCD064020
RTKF 245–1050/1600 1ZCD064070
245 141 505 / 460
1 050 750 230 146 425 / 350
900 750 170015601450
1 5007 595 2 050 5 000 2500 v–30° 272
286 301
487 502 516
0 300600
590 890
1 190
234 80 2 474 2 299 184 315 428 375 480 400 450 295 365 12 20 22 13 3 064 3 364 3 664
30 80 40 125 140 22a 140 22c
RTKF 300–1175/1000 KSI 1ZCD064021
RTKF 300–1175/1000 1ZCD064071
300 173 560 / – 1 175 850 1000850780
6659 300 2 370 5 000 2 500 v–30° 296
312 328
574 590 606
0 300600
590 890
1 190
234 50 2 794 2 619 184 315 428 375 480 400 450 295 365 12 20 22 13 3 384 3 684 3 984
30 80 40 125 134 23a
RTKF 300–1175/2000 KSI 1ZCD064022
RTKF 300–1175/2000 1ZCD064072
300 173 560 / – 1 175 850 225021002000
2 8009 300 2 370 5 000 2 500 v–30° 422
444 466
801 823 845
0 300600
590 890
1 190
285 100 2 920 2 745 200 365 479 435 520 450 500 355 415 12 20 25 13 3 510 3 810 4 110
40 125 50 125 176 23b
RTKF 420–1675/1000 KSI 1ZCD064023
RTKF 420–1675/1000 1ZCD064073
420 242 750 / – 1 675 1 175 110012501000
1 200 1 500 1 500
13 020 3 600 5 000 2 500 v–30° 614 632 654
1 130 1 148 1 170
0–200 300600
790 1 090 1 390
285 65 80 80
4 150 3 975 200 550 479 550 520 620 680 355 580 16 22 25 14 4 940 5 240 5540
30 80 40 125 176 23b
RTKF 420–1675/2000 KSI 1ZCD064024
RTKF 420–1675/2000 1ZCD064074
420 242 750 / – 1 675 1 175 200018501700
2 80013 020 3 600 5 000 2 500 v–30° 782
813 845
1 423 1 454 1 486
0 300600
790 1 090 1 390
338 100 4 200 4 025 200 550 547 550 580 620 680 410 580 16 22 25 14 4 990 5 290 5 590
40 125 50 125 176 23b
RTKF 550–1800/1000 KSI 1ZCD064025
RTKF 550–1800/1000 1ZCD064075
550 318 870 / – 1 800 1 240 500 318 750 / – 1 675 1 175 10501100900
1 200 1 500 1 500
13 750 4 000 5 000 2 500 v–30° 862 889 921
1 553 1 580 1 612
0–200300600
850 1 150 1 450
338 65 80 80
4 600 4 425 200 550 547 550 580 620 680 410 580 16 22 25 14 5 450 5 750 6 050
30 80 40 125 176 23b
* Ith2 sec. [kA] = 0.06 × S [mm2] if S ≤ 700 mm2
Ith2 sec. [kA] = 0.055 × S [mm2] if S = 1200 mm2
Ith2 sec. [kA] = 0.05 × S [mm2] if S = 1500 mm2
Ith2 sec. [kA] = 0.045 × S [mm2] if S = 2800 mm2
All dimensions in mm, unless otherwise indicated
Legend
1 Copper, bare (optional: nickel-plated, silver-plated)
2 Test tap
3 De-aeration
4 Earthing screws 2 × M12 / 180°
5 Eyebolts 2 × M16 / 180°
6 Sealing area
7 Removability (for connecting the transformer lead)
L6 Current transformer extension
LC
Fig.22
c7L1
6 20∅d6
∅d5
7
∅d3
Fig22 d6 c7
22a 180 170
22c 180 200
∅d3
c7L1
6 20
∅d6
∅d5
7
Fig.23
Fig23 d6 c7
23a 230 200
23b 292 230
Fig.21
∅d6
∅d5
∅d3
c7L16
Fig21 d6 c7
21c 180 133
—AirRIP bushings 245–550 kVTypes with cable conductor
28 2927 MICAFIL RIP TRANSFORMER BUSHINGS AIRRIP / RTKF 24–550 KV 30
Bushings with rod conductor 245–550 kV
Flange Flange detail
Data for bushings with rod conductor 245–550 kV
Fig.7 Fig.8
Fig.12 Fig.13 Fig.14
2
4
3
∅D4
∅D3
15°
12×30°
15°
12×30°
30°
2
5
3
4
∅D4
∅D3
22.5°
16×22.5°
∅D3
2
4
3
511.25°
∅D4
∅d2
L16
±5
L2 (±
5)
L5 max.
c2(L
)
L6 ∅D1
∅D6 max.
∅D5
20
c7
1 1
L16
±5
L2 (±
5)
L5 max.
c2(L
)
L6
∅D1
∅D6 max.
∅D5
20
∅d2
c7
∅D8
∅D2
n×∅v
6
s
5×4
5°
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
Type and drawing Electrical characteristics Current Insulator data Mechanical design Weights Oil side Air side Flange Air side terminal Oil side end
IEC 60137 (2017) IEEE C57.19.01 (2000) Standard Variant. Standard Variant 1
With silicone composite insulator
With porcelain insulator
Rate
d Vo
ltag
e U
m
Phas
e to
gro
und
Um
/√3
AC
tes
t vo
ltag
e d
ry /
wet
Lig
htni
ng im
pul
se v
olt
age,
1.
2/50
µs
Swit
chin
g im
pul
se v
olt
age
250/
2500
µs
Syst
em v
olt
age
Rat
ed m
ax.
line-
to-g
roun
d v
olt
age
AC
tes
t vo
ltag
e d
ry /
wet
Lig
htni
ng im
pul
se v
olt
age,
1.
2/50
µs
Swit
chin
g im
pul
se v
olt
age
250/
2500
µs
Max
imum
ope
rati
ng c
urre
nt
(inrespecttoCTextensionL6)
Ther
mal
sho
rt-t
ime
curr
ent
Ith 2
sec
.
Cre
epag
e d
ista
nce
(min
imum
)
Arc
ing
dis
tanc
e (m
inim
um)
Can
tile
ver
test
load
, 1 m
in.
Can
tile
ver
op
erat
ing
load
Inst
alla
tio
n (v
= v
erti
cal,
h
= ho
rizo
ntal
, …°
fro
m v
erti
cal)
Wit
h si
lico
ne c
om
po
site
insu
lato
r
Wit
h p
orc
elai
n in
sula
tor
Cur
rent
tra
nsfo
rmer
ext
ensi
on
Low
er c
ore
leng
th
(to
lera
nce
± 5
mm
)
Co
re d
iam
eter
Insi
de
tub
e d
iam
eter
Term
inal
: dis
tanc
e fr
om
the
fl
ang
e p
late
(to
lera
nce
± 5
mm
)
Hei
ght
of
head
(max
imum
)
Hea
d d
iam
eter
(wit
h si
lico
ne
com
po
site
insu
lato
r)M
ax. s
hed
dia
met
er (w
ith
silic
one
co
mp
osi
te in
sula
tor)
Hea
d d
iam
eter
(wit
h p
orc
elai
n in
sula
tor)
Max
. she
d d
iam
eter
(wit
h p
orc
elai
n in
sula
tor)
Pitc
h ci
rcle
dia
met
er
Out
sid
e fl
ang
e d
iam
eter
Seal
ing
are
a: m
in. d
iam
eter
Seal
ing
are
a: m
ax. d
iam
eter
Num
ber
of
hole
s
Ho
le d
iam
eter
Flan
ge
pla
te t
hick
ness
Fig
ure
Bus
hing
leng
th, w
itho
ut a
ir s
ide
term
inal
and
low
er s
hiel
d
Op
enin
g
Shie
ld d
iam
eter
Shie
ld le
ngth
bel
ow L
16
Fig
ure
Op
enin
g
Fig
ure
Op
enin
g
Fig
ure
[kV] [kV] [kV] [kV] [kV] [kV] [kV] [kV] [kV] [kV] [A] [A] [mm] [mm] [N] [N] [kg] [kg] L6 L 16 D1 d3 L 2 L 5 D5 D6 D5 D6 D3 D4 D2 D8 n v s Fig L d2 c2 d2 c2 d5 Fig d5 Fig
RTKF 245–1050/1600 B KSI 1ZCD064019
RTKF 245–1050/1600 B 1ZCD064069
245 141 505 / 460 /
1 050 750 230 146 425 / 350 /
900 750 165015101400
Ith 2
sec
. = 2
5 ×
Ir
7 595 2 050 5 000 2 500 v–30° 231 244 258
417 431 445
0 300600
590 890
1 190
185 50 2 465 175 245 370 315 450 400 450 245 365 12 20 22 12 3 055 3 355 3 655
40 125 30 80 140 22c
RTKF 245–1050/2000 B KSI 1ZCD064020
RTKF 245–1050/2000 B 1ZCD064070
245 141 505 /460 /
1 050 750 230 146 425 /350 /
900 750 240022302100
7 595 2 050 5 000 2 500 v–30° 386 412 439
601 628 654
0 300600
590 890
1 190
234 80 2 474 184 315 428 375 480 400 450 295 365 12 20 22 13 3 064 3 364 3 664
40 125 140 22a 140 22c
RTKF 300–1175/1600 B KSI 1ZCD064021
RTKF 300–1175/1600 B 1ZCD064071
300 173 560 / – /
1 175 850 160014401340
9 300 2 370 5 000 2 500 v–30° 340 360 381
618 638 659
0 300600
590 890
1 190
234 50 2 794 184 315 428 375 480 400 450 295 365 12 20 22 13 3 384 3 684 3 984
40 125 30 80 134 23a
RTKF 300–1175/2500 B KSI 1ZCD064022
RTKF 300–1175/2500 B 1ZCD064072
300 173 560 /– /
1 175 850 300028002600
9 300 2 370 5 000 2 500 v–30° 537 569 601
915 947 980
0 300600
590 890
1 190
285 100 2 920 200 365 479 435 520 450 500 355 415 12 20 25 13 3 510 3 810 4 110
50 125 176 23b
RTKF 420–1675/1600 B KSI 1ZCD064023
RTKF 420–1675/1600 B 1ZCD064073
420 242 750 / – /
1 675 1 175 180020001800
13 020 3 600 5 000 2 500 v–30° 736 832 866
1 252 1 348 1 382
0 300600
790 1 090 1 390
285 65 80 80
4 150 200 550 479 550 520 620 680 355 580 16 22 25 14 4 940 5 240 5 540
40 125 176 23b
RTKF 420–1675/2500 B KSI 1ZCD064024
RTKF 420–1675/2500 B 1ZCD064074
420 242 750 / – /
1 675 1 175 280026502500
13 020 3 600 5 000 2 500 v–30° 947 988
1 029
1 588 1 629 1 669
0 300600
790 1 090 1 390
338 100 4 200 200 550 547 550 580 620 680 410 580 16 22 25 14 4 990 5 290 5 590
50 125 176 23b
RTKF 550–1800/2000 B KSI 1ZCD064025
RTKF 550–1800/2000 B 1ZCD064075
550 318 870 / – /
1 800 1 240 500 318 750 / – /
1 675 1 175 185020001750
13 750 4 000 5 000 2 500 v–30° 996 1 110 1 154
1 687 1 800 1 845
0 300600
850 1 150 1 450
338 65 80 80
4 600 200 550 547 550 580 620 680 410 580 16 22 25 14 5 450 5 750 6 050
40 125 176 23b
All dimensions in mm, unless otherwise indicated
AIRRIP BUSHINGS 245–550 KV TYPES WITH ROD CONDUCTOR
Legend
1 Copper, bare (optional: nickel-plated, silver-plated)
2 Test tap
3 De-aeration
4 Earthing screws 2 × M12 / 180°
5 Eyebolts 2 × M16 / 180°
6 Sealing area
7 Removability (for connecting the transformer lead)
L6 Current transformer extension
MC
Fig.22
Fig22 d6 c7
22a 180 170
22c 180 200
Fig.23
Fig23 d6 c7
23a 230 200
23b 292 230c7L1
6 20
∅d6
∅d5
7
∅d3 ∅d3
c7L1
6 20
∅d6
∅d5
7
∅d3* ∅d4 Standard Var.1 Var.2 flat thread round
thickness holes a1 n × ∅g1 thread × c1 d1 × c1
50 45 20 2 × ∅18 M36×3 × 60 40 × 85
65 60 30 2 × ∅18 M42×3 × 80 50 × 85
80 75 30 2 × ∅18 50 × 85
100 95 30 4 × ∅18
* See column 25 of the data table
Oil side terminal
Optional splitting of the rod conductorDetermine whether or not the rod conductor should be split. Rod conductors are split 20 mm below the base plate and have the following characteristics:
∅d3* ∅d4 screws lengthe1
50 45 3 × M10 110
65 60 3 × M10 110
80 75 3 × M12 130
100 95 6 × M12 130
* See column 25 of the data table
Air side terminal Standard terminals as per columns 39/40, variants as per columns 41/42.
Guidelines for the terminal dimensions:
Max.operatingcurrent(A) d2 c2
1,600 30 80
2,500 40 125
3,500 50 125
Determination of the rod conductor
20 e1
∅d2
c2c1
L
∅d4
30
Var.1:thread Var.2:round
Standard: flat
∅d4
∅g1
40
∅d4
∅g14020
4020
L16
85
30
85
30L16
L16 L16
d1
∅d4
d1G
c1
30
15⁰
10c1
30
∅d4
∅d4
∅g1
40
∅d4
∅g14020
4020
L16
85
30
85
30L16
L16 L16
d1
∅d4
d1G
c1
30
15⁰
10c1
30
∅d4
30 a130
30 a130
L: Bushing length, without airside terminal and lower shield, see column 40 of the data table
—AirRIP bushings 245–550 kVTypes with rod conductor
32 3331 MICAFIL RIP TRANSFORMER BUSHINGS AIRRIP / RTKF 24–550 KV 34
Bushings with fixed conductor 245–550 kV
Flange
Oil side endExplanations of the table columns
3–7 Rated voltages according to IEC 60137 (2017)8–12 Rated voltages according to IEEE C57.19.01 (2000)13 Maximum operating current as a function of the
current transformer extension L614 Maximum thermal short-circuit current, 2 sec,
after operation at maximum operating current17 Bending test load, 1 min 18, 19 Maximum cantilever operating load and
permissible installation position (v = vertical, h = horizontal, …° from vertical)
22 Standard current transformer extension L6
27, 28 Maximum head and shed diameter for silicone composite insulator
29, 30 Maximum head and shed diameter for porcelain insulator
33, 34 Sealing area39 Bushing length L, without air side terminal
and oil side shield40, 41 Standard terminal on air side42, 43 Standard oil side terminal44, 45 Standard design of oil side end
Flange detail
Data for bushings with fixed conductor 245–550 kV
Fig.7 Fig.8
Fig.12
Fig.24
Fig.13
Fig.25
Fig.14
15°
12×30°
2
4
3
∅D4
∅D3
15°
12×30°
30°
∅D4
∅D3
2
5
3
4
22.5°
16×22.5°
∅D4
∅D3
2
4
3
511.25°
c7L1
6 20
∅d6
∅d5
7
c7L1
6 20
∅d6
∅d5
7
∅d2
1
L16
±5
L2 (±
5)
L5 max.
c2(L
)
L620
c7
∅D1
∅D6 max.
∅D5
∅D1
∅D6 max.
∅D5
1
L5 max.
L620
∅d2
L16
±5
L2 (±
5)
c2(L
)c7
∅D8
∅D2
n×∅v
6
s
5×4
5°
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45
Type and drawing Electrical characteristics Current Insulator data
Mechanical design
Weights Oil side Air side Flange Air side terminal
Oil side terminal
Oil side end
IEC 60137 (2017) IEEE C57.19.01 (2000) Standard Standard Standard
With silicone composite insulator
With porcelain insulator
Rate
d Vo
ltag
e U
m
Phas
e to
gro
und
Um
/√3
AC
tes
t vo
ltag
e d
ry /
wet
Lig
htni
ng im
pul
se v
olt
age,
1.
2/50
µs
Swit
chin
g im
pul
se v
olt
age
250/
2500
µs
Syst
em v
olt
age
Rat
ed m
ax.
line-
to-g
roun
d v
olt
age
AC
tes
t vo
ltag
e d
ry /
wet
Lig
htni
ng im
pul
se v
olt
age,
1.
2/50
µs
Swit
chin
g im
pul
se v
olt
age
250/
2500
µs
Max
imum
ope
rati
ng c
urre
nt
(inrespecttoCTextensionL6)
Ther
mal
sho
rt-t
ime
cu
rren
t It
h 2 s
ec.
Cre
epag
e d
ista
nce
(min
imum
)
Arc
ing
dis
tanc
e (m
inim
um)
Can
tile
ver
test
load
, 1 m
in.
Can
tile
ver
op
erat
ing
load
Inst
alla
tio
n (v
= v
erti
cal,
h
= ho
rizo
ntal
, …°
fro
m v
erti
cal)
Wit
h si
lico
ne c
om
po
site
insu
lato
r
Wit
h p
orc
elai
n in
sula
tor
Cur
rent
tra
nsfo
rmer
ext
ensi
on
Low
er c
ore
leng
th
(to
lera
nce
± 5
mm
)
Co
re d
iam
eter
Term
inal
: dis
tanc
e fr
om
the
fl
ang
e p
late
(to
lera
nce
± 5
mm
)
Hei
ght
of
head
(max
imum
)
Hea
d d
iam
eter
(wit
h si
lico
ne
com
po
site
insu
lato
r)
Max
. she
d d
iam
eter
(wit
h si
lico
ne
com
po
site
insu
lato
r)
Hea
d d
iam
eter
(wit
h p
orc
elai
n in
sula
tor)
Max
. she
d d
iam
eter
(wit
h p
orc
elai
n in
sula
tor)
Pitc
h ci
rcle
dia
met
er
Out
sid
e fl
ang
e d
iam
eter
Seal
ing
are
a: m
in. d
iam
eter
Seal
ing
are
a: m
ax. d
iam
eter
Num
ber
of
hole
s
Ho
le d
iam
eter
Flan
ge
pla
te t
hick
ness
Fig
ure
Bus
hing
leng
th, w
itho
ut a
ir s
ide
term
inal
and
low
er s
hiel
d
Term
inal
dia
met
er
Leng
th o
f te
rmin
al
Term
inal
wid
th
Fig
ure
Op
enin
g
Fig
ure
[kV] [kV] [kV] [kV] [kV] [kV] [kV] [kV] [kV] [kV] [A] [A] [mm] [mm] [N] [N] [kg] [kg] L6 L 16 D1 L 2 L 5 D5 D6 D5 D6 D3 D4 D2 D8 n v s Fig L d2 c2 d4 Fig d5 Fig
RTKF 245–1050/2000 F KSI 1ZCD064044
RTKF 245–1050/2000 F 1ZCD064094
245 141 505 /460 /
1 050 750 230 146 425 / 350 /
900 750 215020501950
Ith 2
sec
. = 2
5 ×
Ir
7 595 2 050 5 000 2 500 v–30° 263 280 297
449 466 483
0 300600
590 890
1 190
185 2 438 148 245 370 315 450 400 450 245 365 12 20 22 12 3 028 3 328 3 628
40 125 52 30a 140 24b
RTKF 245–1050/3150 F KSI 1ZCD064045
RTKF 245–1050/3150 F 1ZCD064095
245 141 505 /460 /
1 050 750 230 146 425 / 350 /
900 750 315030002900
7 595 2 050 5 000 2 500 v–30° 361 385 409
577 601 624
0 300600
590 890
1 190
234 2 447 157 315 428 375 480 400 450 295 365 12 20 22 13 3 037 3 337 3 637
50 125 80 31a 140 24b
RTKF 300–1175/2000 F KSI 1ZCD064046
RTKF 300–1175/2000 F 1ZCD064096
300 173 560 /– /
1 175 850 210020001900
9 300 2 370 5 000 2 500 v–30° 378 401 425
656 679 703
0 300600
590 890
1 190
234 2 767 157 315 428 375 480 400 450 295 365 12 20 22 13 3 357 3 657 3 957
40 125 52 30a 134 25a
RTKF 300–1175/3150 F KSI 1ZCD064047
RTKF 300–1175/3150 F 1ZCD064097
300 173 560 / – /
1 175 850 380036003400
9 300 2 370 5 000 2 500 v–30° 557 591 625
936 969
1 003
0 300600
590 890
1 190
285 2 893 173 365 479 435 520 450 500 355 415 12 20 25 13 3 483 3 783 4 083
60 125 100 31b 176 25b
RTKF 420–1675/2500 F KSI 1ZCD064048
RTKF 420–1675/2500 F 1ZCD064098
420 242 750 / – /
1 675 1 175 230026002400
13 020 3 600 5 000 2 500 v–30° 807 790 821
1 323 1 306 1 337
0–200 300600
790 1 090 1 390
285 4 123 173 550 479 550 520 620 680 355 580 16 22 25 14 4 913 5 213 5 513
40 125 65 80 80
30a 31a31a
176 25b
RTKF 420–1675/3150 F KSI 1ZCD064049
RTKF 420–1675/3150 F 1ZCD064099
420 242 750 / – /
1 675 1 175 325029002600
13 020 3 600 5 000 2 500 v–30° 977 1 019 1 062
1 618 1 660 1 703
0 300600
790 1 090 1 390
338 4 173 173 550 547 550 580 620 680 410 580 16 22 25 14 4 963 5 263 5 563
50 125 100 31b 176 25b
RTKF 550–1800/2000 F KSI 1ZCD064050
RTKF 550–1800/2000 F 1ZCD064100
550 318 870 / – /
1 800 1 240 500 318 750 / – /
1 675 1 175 210022001950
13 750 4 000 5 000 2 500 v–30° 1 079 1 066 1 108
1 769 1 757 1 799
0–200 300600
850 1 150 1 450
338 4 573 173 550 547 550 580 620 680 410 580 16 22 25 14 5 423 5 723 6 023
40 125 65 80 80
30a 31a31a
176 25b
All dimensions in mm, unless otherwise indicated
AIRRIP BUSHINGS 245–550 KV TYPES WITH FIXED CONDUCTOR
Legend
1 Copper, bare (optional: nickel-plated, silver-plated)
2 Test tap
3 De-aeration
4 Earthing screws 2 × M12 / 180°
5 Eyebolts 2 × M16 / 180°
6 Sealing area
7 Removability (for connecting the transformer lead)
L6 Current transformer extension
HC
30 50
∅d4
∅18 8530
40
20L1
6
30 40
∅d4
∅18 8530
40
20L1
6
Oil side
Fig.30a Fig.30b Fig.31bFig.31a
30 ∅d4
∅18 8530
40
20L1
6
20 ∅d4
∅18 8530
40
20L1
6
Fig25 d6 c7
25a 230 200
25b 292 230
Fig24 d6 c7
24a 160 200
24b 180 200
—AirRIP bushings 245–550 kVTypes with fixed conductor
36 3735 MICAFIL RIP TRANSFORMER BUSHINGS AIRRIP / RTKF 24–550 KV
— Transformer bushings, oil-outdoor
Series: AirRIP / RTKF KSISilicone composite insulator available with straight or helical shedsVoltage range: from 24 to 550 kVCurrent range: up to 5,000 A
Series: AirRIP / RTKFPorcelain insulatorVoltage range: from 24 to 550 kVCurrent range: up to 5,000 A
Series: SeismicRIP® / RTKF KSISilicone composite insulatorVoltage range: from 69 to 550 kVCurrent range: up to 5,000 AStandard: IEEE 693 (2005)High seismic performance level
Series: HIRIP high-current RTXFPorcelain insulatorVoltage range: up to 36 kVCurrent range: up to 40,000 A
— Transformer bushings, oil-SF6
Series: GARIP / RTKGVoltage range: from 36 to 550 kVCurrent range: up to 4,000 A
— Transformer bushings, oil-oil
Series: OilRIP / RTKKVoltage range: from 72.5 to 550 kVCurrent range: up to 4,000 A
— Outdoor-SF6 bushings for GIS
Series: RAKF porcelain or silicone composite insulatorVoltage range: from 245 to 550 kVCurrent range: up to 4,000 A
— Wall bushings
Series: RMI indoor-indoor RMF outdoor-indoor RMFF outdoor-outdoorPorcelain or silicone composite insulatorVoltage range: from 24 to 300 kVCurrent range: up to 5,000 A
— Railway bushings
Series: RMF / RTAK porcelain insulatorVoltage range: from 15 to 36 kVCurrent range: up to 2,000 A
— Note
We reserve the right to make technical changes or modify the contents of this document without prior notice. With regard to purchase orders, the agreed particulars shall prevail. ABB Switzerland Ltd does not accept any responsibility whatsoever for potential errors or possible lack of information in this document. We reserve all rights in this document and in the subject matter and illustrations contained therein. Any reproduction, disclosure to third parties or utilization of its contents – in whole or in parts – is forbidden without prior written consent of ABB Switzerland Ltd.
Copyright © 2018 ABBAll rights reserved.
—Other ABB MICAFIL RIP bushings
ABB offers an extensive range of high-quality products which can be adapted to different transformer and plant designs, and meet the exact requirements of the most varied applications. In addition, we offer specialized, tailor-made solutions, including custom designs and small series production.
Our range of products encompasses bushings for oil-outdoor, oil-SF6, and oil-oil transformer systems, as well as outdoor-SF6 bushings for GIS. If you don’t see what you need right here, please get in touch with us – we can address your individual needs in a highly professional, flexible and efficient manner. Our bushings are developed and approved for mineral oil applications. Bushings for other oils are available on request.
—ABB Switzerland Ltd Insulation and Components MICAFIL Bushings Badenerstrasse 780CH-8048 ZurichSwitzerlandPhone: +41 58 586 03 33E-mail: [email protected]
abb.com/transformercomponents1Z
CD
08
2324
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EN
07/
2018
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bje
ct t
o c
han
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