Post on 09-Aug-2020
• MICAFIL dry 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. —
M
ICA
FIL
RIP
Tra
nsfo
rmer
Bus
hing
s fo
r O
il-O
il A
pp
licat
ions
OilR
IP /
RT
KK
72.
5 –
550
kV
—ABB SWITZERL AND LTD
MICAFIL RIP Transformer Bushings for Oil-Oil ApplicationsOilRIP / RTKK 72.5 – 550 kV
4 Today’s technology for tomorrow
5 OilRIP overview
6 OilRIP bushings in detail
8 Current conductor selection
10 General information
OilRIP bushings 72.5 – 170 kV
12 Types with cable bolt for draw lead
15 Types with removable solid rod conductor
18 Types with fixed conductor
OilRIP bushings 245 – 550 kV
21 Types with cable bolt for draw lead
24 Types with removable solid rod conductor
27 Types with fixed conductor
32 Leading in bushing technology
35 Customer values and advantages
36 Enquiry form
3M I C A F I L R I P TR A N S FO R M E R B U S H I N G S FO R O I L- O I L A PPLI C ATI O N S O i lR I P / RTK K 7 2 . 5 – 55 0 K V
MICAFIL OilRIP transformer bushings are the product of a sophisticated design process using a minimal number of components: a fine-graded insulating core, main flange and current conductor. They are produced in a wide variety of designs that can easily fulfil all customer requirements and are easy to install and highly reliable.
Bushing designation Um (kV) Max. BIL (kV) SIL Conductor type Ir (A) Symbol Drawing number
RTKK 72.5-350/1250 72.5 350 n.a. Cable 1250C
1ZCD200259
RTKK 72.5-350/2000 72.5 350 n.a. Cable 2000 1ZCD203097
RTKK 72.5-350/2500 B 72.5 350 n.a. Rod 2500 R 1ZCD203133
RTKK 123-550/800 123 550 n.a. Cable 800
C
1ZCD203315
RTKK 123-550/1250 123 550 n.a. Cable 1250 1ZCD201211
RTKK 123-550/1600 123 550 n.a. Cable 1600 1ZCD203115
RTKK 123-550/2000 123 550 n.a. Cable 2000 1ZCD203320
RTKK 123-550/2000 B 123 550 n.a. Rod 2000R
1ZCD203136
RTKK 123-550/2500 B 123 550 n.a. Rod 2500 1ZCD203158
RTKK 123-550/3150 F 123 550 n.a. Fixed 3150 F 1ZCD203171
RTKK 145-650/800 145 650 n.a. Cable 800
C
1ZCD203180
RTKK 145-650/1250 145 650 n.a. Cable 1250 1ZCD203183
RTKK 145-650/2000 145 650 n.a. Cable 2000 1ZCD203231
RTKK 145-650/2000 B 145 650 n.a. Rod 2000R
1ZCD203475
RTKK 145-650/2500 B 145 650 n.a. Rod 2500 1ZCD203234
RTKK 145-650/3150 F 145 650 n.a. Fixed 3150F
1ZCD203237
RTKK 145-650/4000 F 145 650 n.a. Fixed 4000 1ZCD203241
RTKK 170-750/800 170 750 n.a. Cable 800
C
1ZCD201671
RTKK 170-750/1250 170 750 n.a. Cable 1250 1ZCD202852
RTKK 170-750/1600 170 750 n.a. Cable 1600 1ZCD202924
RTKK 170-750/2000 B 170 750 n.a. Rod 2000 R 1ZCD202944
RTKK 170-750/3150 F 170 750 n.a. Fixed 3150F
1ZCD203074
RTKK 170-750/4000 F 170 750 n.a. Fixed 4000 1ZCD203085
RTKK 245-1050/800 245 1050 850 Cable 800C
1ZCD203208
RTKK 245-1050/1600 245 1050 850 Cable 1600 1ZCD203569
RTKK 245-1050/2000 B 245 1050 850 Rod 2000 R 1ZCD203584
RTKK 245-1050/3150 F 245 1050 850 Fixed 3150F
1ZCD203622
RTKK 245-1050/4000 F 245 1050 850 Fixed 4000 1ZCD203634
RTKK 362-1175/1250 362 1175 950 Cable 1250C
1ZCD203637
RTKK 362-1175/1600 362 1175 950 Cable 1600 1ZCD203640
RTKK 362-1175/2000 B 362 1175 950 Rod 2000 R 1ZCD203643
RTKK 362-1175/2500 F 362 1175 950 Fixed 2500 F 1ZCD203646
RTKK 420-1550/1600 420 1550 1175 Cable 1600 C 1ZCD203652
RTKK 420-1550/2000 B 420 1550 1175 Rod 2000 R 1ZCD203126
RTKK 420-1550/2500 F 420 1550 1175 Fixed 2500 F 1ZCD203168
RTKK 550-1800/1250 550 1800 1300 Cable 1250 C 1ZCD203193
RTKK 550-1800/1600 B 550 1800 1300 Rod 1600 R 1ZCD203232
RTKK 550-1800/2000 F 550 1800 1300 Fixed 2000 F 1ZCD203246
—OilRIP overview
4 M I C A F I L R I P TR A N S FO R M E R B U S H I N G S FO R O I L- O I L A PPLI C ATI O N S O i lR I P / RTK K 7 2 . 5 – 55 0 K V
—RIP insulation
Capacitance graded 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 MICAFIL RIP (Resin Impregnated Paper) system consists of wound strips of crepe paper. Aluminum foils are wrapped in graduated lengths at calculated points.
The condenser core is heated, vacuum dried, impregnated and cured under vacuum with an epoxy resin formulated by ABB. The impregnation process requires the skillful setting and control of process parameters, as well as broad knowledge and experience in the field of materials science and materials selection.
ABB MICAFIL has developed its expertise over decades and gained market experience as a first-class supplier. This means that ABB RIP bushings have very good thermal and chemical resistance as well as high mechanical strength and stiffness.
—Today’s technology for tomorrow
—OilRIP stands for quality and versatility
High voltage bushings must meet the highest standards of operational safety and minimize risk for people and property. Growing environmental awareness and regulation requires low-impact production and clean operation.
The MICAFIL OilRIP 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 in our electrical testing laboratory.
Advantages of MICAFIL bushings
• Partial discharge-free up to double phase to ground 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).• These are completely dry bushings, meaning
that there is no risk of an oil leakage or explosion.
• No maintenance or constant monitoring necessary.
• Transport and storage is possible in all positions.
• Flexible design allows adaptation to different customer needs and transformer requirements.
• Easy and safe installation.• Proven reliability.
5
6 M I C A F I L R I P TR A N S FO R M E R B U S H I N G S FO R O I L- O I L A PPLI C ATI O N S O i lR I P / RTK K 7 2 . 5 – 55 0 K V
— Insulating core
The heart of the OilRIP bushing is its RIP insulated condenser core that has 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. Their high quality allows for the delivery of partial discharge free bushings up to double service voltage. To accommodate current transformers, the lower core part can be extended in steps of 100 mm up to 600 mm. The insulation length in the 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
The new flange has an optimized design to withstand high load and ensure mechanical robustness. With a multiple O-ring system, the transition between core and flange is oil- and gas-tight. The aluminum alloy used for this purpose is corrosion-resistant and mechanically robust. This ensures safe handling of bending moments during operation and in bending test loads. The whole series is type-tested in an accredited independent lab in accordance with the highest bending load class of IEC 60137 (2017).
Standard flanges meet the most commonly used dimensions, however dimensions modifications can be implemented. On request, it is possible to
select a double plate flange. In fact, the OilRIP bushings are designed in order to ensure perfect interchangeability of single plate and double plate flanges in the same compact dimensions. The flange is equipped with a test tap and has a de-aerating screw. The flange is mounted with an identification tag, M12 connection thread for flange earthing and, on larger bushings, eyebolts for lifting purposes.
— Transformer oil side end
ABB’s design allows the installation of bushings without shield electrodes for cable and rod conductor applications up to 170kV. Shield electrodes can be ordered as an option. In all other cases, a removable shield is provided which can be easily and safely installed by a bayonet locking system. ABB’s shield electrodes are designed using the most advanced methods and technologies.
— Cable side oil terminal and clamping system
The OilRIP bushings are designed for easy and safe installation. The ABB MICAFIL clamping system is well proven to remove the cable bolt or the rod by simple operations. It is also possible to position the cable bolt or the solid rod conductors within +/-10mm from the nominal dimensions. The terminal is a round blank full material copper piece that can be part of a cable bolt, a rod or a fixed conductor. The fixing devices also mean that there is no displacement or rotation of the terminal and conductor during installation and operation. The cable side connection is shielded by a removable shield, which is installed by a bayonet locking system. Variances in lateral access are possible on request. In this case, a customized safe and easy solution is provided in accordance to the ABB MICAFIL highest standard of quality.
—OilRIP bushings in detail
Current dataThe type designation of the bushings contains the standard current according to IEC 60137 (2017). The actual permissible operating currents depends on the lower part extension, L6, and in the case of the cable bolt conductor, on the type of insulation.
Oil side terminalThe standard air side terminals mentioned in the data tables cover the entire current range of the bushing.
If the full current range of the bushing is not utilized, smaller dimensions may be used as an option.
∅A
C = T–20 mm
Hole for deaeration
∅B
T = Length of cable bolt diameter
Removable solid rod conductorIn order to achieve higher operating currents, the bushings with a central tube are equipped with an additional removable solid rod conductor.
This type allows for the use of a single piece conductor without contact junctions which guarantees high current rating and excellent thermal performance. The oil gap is designed to keep the RIP core at a safe temperature, as proven by tests. Conductor installation and de-aeration of the central tube are similar in both versions either with solid rod conductor or with a cable bolt conductor.
ABB offers 3 types of conductors optimized for the selected current rating.
Recommended option
Cable bolt for draw leadThe current is led through a multi-stranded flexible conductor that is joined to the terminal of the winding. The lead is drawn up through the central tube of the bushing and the top connector (cable bolt) is fastened to the bushing clamp. In the standard model, the cable side terminal is a round, blank copper bolt. 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. Transformer manufacturers must provide the conductor cable with a thin insulation in order to keep transient voltages to the central bushing tube. The use of high temperature insulation allows for the increase of maximum operating current.
— Cable bolt for draw lead
— Removable solid rod conductor
— Fixed conductor
C R
Fixed conductorBushings with a directly wound and non-removable conductor are suitable for high currents.
The transformer should have a 'manhole' to insure the access to the connection.
F
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).
Alternatively it is possible to withstand overload by improving cable insulation for draw lead. The present design allows safe temperature of the RIP even at higher current, by selecting aramid paper insulation with the support of ABB expertise.
Recommended maximum drilling depth and hole diameter for a standard cable bolt (draw lead application).
8 9M I C A F I L R I P TR A N S FO R M E R B U S H I N G S FO R O I L- O I L A PPLI C ATI O N S O i lR I P / RTK K 7 2 . 5 – 55 0 K V
—Current conductor selection
Tube diameter d3 [mm]
Max. hole diameter (A) [mm]
Cable bolt diameter (B) [mm]
Max. drilling depth
(C) [mm]
40 35 38 T-20
50 40 45 T-20
56 45 50 T-20
65 55 60 T-20
80 70 75 T-20
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 10/4 mm plug coupling must be inserted.
Each OilRIP bushing meets all requirements of IEC 60137 (2017) and the electrical values under IEEE C57.19.01 (2000). The Draw lead has also been type-tested accordingly to the IEEE draw lead bushing cap pressure test (C57.19.01.2000 7.2.21).
A
L6+
20
Min. R5
Ur [kV]
AC test voltage
[kV]∅180 ∅292
72.5140 – –
160 – –
123185 130 –
230 145 –
145275 170 –
310 200 –
170325 210 –
365 230 –
245 460 300 –
362 510 – 330
420630 – 450
680 – 500
550750 – 550
790 – 600
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.
Rated current (A)
Lightning impulse voltage 1.2/50 µs (kV)
Maximum voltage (kV)
R = RIP bushing
T = Transformer application
K = Short lower part, Transformer side
K = Short lower part, cable box side
RTKK 170–750 / 1600
Rated current (A)
Lightning impulse voltage 1.2/50 µs (kV)
Maximum voltage (kV)
R = RIP bushing
T = Transformer application
K = Short lower part, Transformer side
K = Short lower part, cable box side
RTKK 170–750 / 1600
Rated current (A)
Lightning impulse voltage 1.2/50 µs (kV)
Maximum voltage (kV)
R = RIP bushing
T = Transformer application
K = Short lower part, Transformer side
K = Short lower part, cable box side
RTKK 170–750 / 1600
Rated current (A)
Lightning impulse voltage 1.2/50 µs (kV)
Maximum voltage (kV)
R = RIP bushing
T = Transformer application
K = Short lower part, Transformer side
K = Short lower part, cable box side
RTKK 170–750 / 1600
Rated current (A)
Lightning impulse voltage 1.2/50 µs (kV)
Maximum voltage (kV)
R = RIP bushing
T = Transformer application
K = Short lower part, Transformer side
K = Short lower part, cable box side
RTKK 170–750 / 1600
Rated current (A)
Lightning impulse voltage 1.2/50 µs (kV)
Maximum voltage (kV)
R = RIP bushing
T = Transformer application
K = Short lower part, Transformer side
K = Short lower part, cable box side
RTKK 170–750 / 1600
Rated current (A)
Lightning impulse voltage 1.2/50 µs (kV)
Maximum voltage (kV)
R = RIP bushing
T = Transformer application
K = Short lower part, Transformer side
K = Short lower part, cable box side
RTKK 170–750 / 1600
Rated current (A)
Lightning impulse voltage 1.2/50 µs (kV)
Maximum voltage (kV)
R = RIP bushing
T = Transformer application
K = Short lower part, Transformer side
K = Short lower part, cable box side
RTKK 170–750 / 1600
Type designation
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 clearance distances (A) to grounded transformer parts under standard conditions.
Recommended distances A from earthed parts (e.g. transformer wall).
As an option, ABB MICAFIL provides transition connectors for continuous voltage measurements. This is highly recommended in oil-oil applications to allow measurements in safe conditions from extern turret wall.
Routine and type testsThe standard routine tests are carried out in accordance with IEC 60137 (2017) with all the protocols supplied. Tests carried out according to other standards are available upon 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 OilRIP portfolio and were successfully passed in an accredited independent lab. Bushings always fulfill MICAFIL high quality standards, which are stricter than IEC an IEEE. Protocols can be supplied to customers on request.
Packaging and storageThe bushings are packed and sent in a dry and clean state. On request, we offer long-time storage packaging. The bushings can be transported and stored without the constraints on orientation that liquid-filled or liquid-insulated bushings have.
10 11M I C A F I L R I P TR A N S FO R M E R B U S H I N G S FO R O I L- O I L A PPLI C ATI O N S O i lR I P / RTK K 7 2 . 5 – 55 0 K V
—General information
Type and drawingsElectric data
CurrentMechanical
dataTransformer side Cable side Flange
Cable side terminal Transformer side end Cable side end**
IEC 60137 (2017) IEEE C57.19.01 (2000) Standard Variant Standard Var. 1 Standard Var. 1 Var. 2
Cable conductor bushings
Rat
ed v
olt
age
Um
Rat
ed f
ace-
to-e
arth
Um
/√3
AC
tes
t vo
ltag
e d
ry
Lig
htni
ng im
pul
se v
olt
age,
1.
2/50
µs
Syst
em v
olt
age
Rat
ed m
ax. l
ine-
to-g
roun
d vo
ltag
e
AC
tes
t vo
ltag
e d
ry/w
et
Lig
htni
ng im
pul
se v
olt
age,
1.
2/50
µs
Max
imum
Cur
rent
Ir (
in
dep
end
ance
of
L6)
Wit
h co
pp
er c
able
sec
tio
n S
The
rmal
sho
rt-t
ime
curr
ent
Ith,
2
sec.
IEC
The
rmal
sho
rt-t
ime
curr
ent
Ith,
2 se
c.
Can
tile
ver
test
load
, 1 m
in.
Wei
ght
Cur
rent
tra
nsfo
rmer
ext
ensi
on
Low
er c
ore
leng
th (t
ole
ranc
e
± 5
mm
)
Co
re d
iam
eter
Inne
r R
ohr
-ø
Term
inal
: dis
tanc
e fr
om
the
fla
nge
pla
te (t
ole
ranc
e ±
5 m
m)
Cab
le b
olt
: dis
tanc
e fr
om
the
fl
ang
e p
late
Co
re d
iam
eter
Flan
ge
des
igna
tio
n
Pit
ch c
ircl
e d
iam
eter
ø
Out
sid
e fl
ang
e d
iam
eter
ø
Seal
ing
area
: min
. dia
met
er ø
Seal
ing
area
: max
. dia
met
er ø
Num
ber
of
hole
s
Ho
le d
iam
eter
Flan
ge
pla
te t
hick
ness
Flan
ge
heig
ht
Fig
ure
Term
inal
dia
met
er ø
Term
inal
leng
th
Term
inal
dia
met
er ø
Term
inal
leng
th
Op
enin
g
Fig
ure
Fig
ure
Dia
met
er u
nder
shi
eld
Fig
ure
Dia
met
er u
nder
shi
eld
Fig
ure
Fig
ure
[kV] [kV] [kV] [kV] [kV] [kV] [kV] [kV] [A] [mm2] [kA] [kA] [N] [kg] L6 L16 D1 d3 L2 L4 D11 D3 D4 D2 D8 n v s LF Fig. d2 c2 d2 c2 d5 Fig. Fig. D5 Fig. D5 Fig. Fig.
RTKK 72.5-350/1250 1ZCD200259
72.5 42 155 325 69 44 160 350
960 400 24 17
2000
13 0 175
87
40
404 229 87std
var.1185 250
225 290
128 128
155 220
6 8
16 16
18 18
120 120
10 11
30 80 - -
51 20b 87 30
880 400 24 16 15 300 475 40 30 80 - -
800 400 24 14 17 600 775 40 30 80 - -
1500 500 30 27 13 0 175 40 30 80 - -
1375 500 30 24 15 300 475 40 30 80 - -
1250 500 30 22 17 600 775 40 30 80 - -
RTKK 72.5-350/2000 1ZCD203097
72.5 42 155 325 69 44 160 350
2000 840 48 35
3150
18 0 175
113
56
404 229 113std
var.1250 290
290 335
155 155
220 260
8 12
16 16
18 18
120 120
11 12
40 125 - - 69
20a 95 302200 1200 65 39 22 300 475 65 40 125 50 125 78
2000 1200 65 35 25 600 775 65 40 125 50 125 78
RTKK 123-550/800 1ZCD203315
123 71 255 550 92 73 185 450
960 400 24 17
3150
20 0 310
113
40
539 364 113std
var.1250 290
290 335
155 155
220 260
8 12
16 16
18 18
120 120
11 12
30 80 - -
51 20a 21 31 95 30 32880 400 24 16 23 300 610 40 30 80 - -
800 400 24 14 27 600 910 40 30 80 - -
RTKK 123-550/1250 1ZCD201211
123 71 255 550 92 73 185 450
1300 500 30 23
3150
20 0 310
113
40
539 364 113std
var.1250 290
290 335
155 155
220 260
8 12
16 16
18 18
120 120
11 12
30 80 - - 51
20a 21 31 95 30 321375 665 40 24 23 300 610 50 30 80 40 125 61
1250 665 40 22 27 600 910 50 30 80 40 125 61
RTKK 123-550/1600 1ZCD203115
123 71 255 550 92 73 185 450
1650 665 40 29
3150
24 0 310
133
50
539 364 133 std 290 335 174 260 12 16 18 120 12
30 80 40 125 61
20a 21 31 95 30 321750 840 48 31 29 300 610 56 30 80 40 125 69
1600 840 48 28 34 600 910 56 30 80 40 125 69
RTKK 123-550/2000 1ZCD203320
123 71 255 550 92 73 185 450
2000 840 48 35
4000
25 0 310
133
56
539 364 133 std 290 335 174 260 12 16 18 120 12
40 125 - - 69
20a 21 31 95 30 322200 1200 65 39 30 300 610 65 40 125 - - 78
2000 1200 65 35 35 600 910 65 40 125 - - 78
RTKK 145-650/800 1ZCD203180
145 84 305 650 138 88 310 650
925 500 30 16
3150
21 100 460
113
40
589 414 113std
var.1250 290
290 335
155 155
220 260
8 12
16 16
18 18
120 120
11 12
30 80 - -
51 20a 21 31 95 30 32880 500 30 16 25 300 660 40 30 80 - -
800 500 30 14 28 600 960 40 30 80 - -
RTKK 145-650/1250 1ZCD203183
145 84 305 650 138 88 310 650
1250, 1650* 665 40, 35* 22, 28
3150
25 0 360
133
50
589 414 133 std 290 335 174 260 12 16 18 120 12
30 80 40 125 61
20a 21 31 95 30 321350, 1750* 840 48, 43* 24, 30 30 300 660 56 30 80 40 125 69
1250, 1600* 840 48, 43* 24, 30 35 600 960 56 30 80 40 125 69
RTKK 145-650/2000 1ZCD203231
145 84 305 650 138 88 310 650
2000, 2300* 840 48,43* 35, 39
4000
30 0 360
153
56
589 414 153 std 290 335 195 260 12 16 18 120 12
30 80 40 125 69
20a 21 31 95 30 322000, 2500* 1200 65, 52* 35, 44 36 300 660 65 30 80 40 125 78
1800, 2200* 1200 65, 52* 32, 39 43 600 960 65 30 80 40 125 78
RTKK 170-750/800 1ZCD201671
170 98 355 750 161 102 365 750
850 500 30 15
4000
27 0 420
133
40
649 474 133 std 290 335 174 260 12 16 18 120 12
30 80 - - 51
20a 21 31 95 30 321100 665 40 19 32 300 720 50 30 80 40 125 61
1000 665 40 25 37 600 1020 50 30 80 40 125 61
RTKK 170-750/1250 1ZCD202852
170 98 355 750 161 102 365 750
1250 ,1600* 665 40, 35* 22, 28
4000
30 0 420
153
50
649 474 153 std 290 335 195 260 12 16 18 120 12
30 80 40 125 61
20a 21 31 95 30 321350, 1600* 840 48, 43* 24, 28 37 300 720 56 30 80 40 125 69
1250, 1500* 840 48, 43* 22, 27 44 600 1020 56 30 80 40 125 69
RTKK 170-750/1600 1ZCD202924
170 98 355 750 161 102 365 750
1600, 2000* 840 48, 43* 28, 35
4000
31 0 420
153
56
649 474 153 std 290 335 195 260 12 16 18 120 12
30 80 40 125 69
20a 21 31 95 30 321750, 2200* 1200 65, 53* 31, 39 37 300 720 65 30 80 40 125 78
1600 ,2000* 1200 65, 53* 28, 35 44 600 1020 65 30 80 40 125 78
C
*With high temperature insulation only. **Same shield dimensions with lateral access variant available.
Fig. 30Fig. 1
Fig. 20bFig. 20a Fig. 21
Fig. 31 Fig. 32
Fig. 11Fig. 10 Fig. 12
1412 M I C A F I L R I P TR A N S FO R M E R B U S H I N G S FO R O I L- O I L A PPLI C ATI O N S O i lR I P / RTK K 7 2 . 5 – 55 0 K V O I L R I P B U S H I N G S 7 2 . 5 – 170 K V T Y PE S W ITH C A B L E B O LT FO R D R AW L E A D
—OilRIP bushings 72.5 – 170 kVTypes with cable bolt for draw lead
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
2020
0
Ø180
Ø140
172
(c2)
2226
134
(c2)
59
134
5927 27
8590
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
90Ø
92
Ø92 17
2
2226
(c2)
23 21 only on page 12&21 21 only on page 15 21 only on page 24
31 3432 35
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
2020
0
Ø180
Ø140
172
(c2)
2226
134
(c2)
59
134
5927 27
8590
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
90Ø
92
Ø92 17
2
2226
(c2)
23 21 only on page 12&21 21 only on page 15 21 only on page 24
31 3432 35
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
2020
0
Ø180
Ø140
172
(c2)
2226
134
(c2)
59
134
5927 27
8590
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
90Ø
92
Ø92 17
2
2226
(c2)
23 21 only on page 12&21 21 only on page 15 21 only on page 24
31 3432 35
6x60°
nxØv
5x4
5°
s
22.5°8x45°
15° 12x30°
30°
D3D4
D3D4
D4D3
ØD8ØD2
6x60°
nxØv
5x4
5°
s
22.5°8x45°
15° 12x30°
30°
D3D4
D3D4
D4D3
ØD8ØD2
6x60°
nxØv
5x4
5°
s
22.5°8x45°
15° 12x30°
30°
D3D4
D3D4
D4D3
ØD8ØD2
6x60°
nxØv
5x4
5°
s
22.5°8x45°
15° 12x30°
30°
D3D4
D3D4
D4D3
ØD8ØD2
Ød5
Ød3
50
Ød5
50
Ød3
Ø95
Ød3
50
Ød5
Ø87Ø95
20a only on page 12 20b only on page 12
20 only on page 15ØD1
Ød2 c2
L4
cab
le b
olt
s L2
(±5)
L16
±5
(L)
Ød11
20L6
1
Type and drawingsElectric data
CurrentMechanical
dataTransformer side Cable side Flange
Transformer side terminal
Cable side terminal Transformer side end Cable side end**
IEC 60137 (2017) IEEE C57.19.01 (2000) Standard Variant Standard Var. 1 Standard Variant 1 Var. 2
Removable solid rod conductor
Rat
ed v
olt
age
Um
Rat
ed f
ace-
to-e
arth
Um
/√3
AC
tes
t vo
ltag
e d
ry
Lig
htni
ng im
pul
se v
olt
age,
1.
2/50
µs
Syst
em v
olt
age
Rat
ed m
ax. l
ine-
to-g
roun
d vo
ltag
e
AC
tes
t vo
ltag
e d
ry /
wet
Lig
htni
ng im
pul
se v
olt
age,
1.
2/50
µs
Max
imum
Cur
rent
Ir (
in
dep
end
ance
of
L6)
The
rmal
sho
rt-t
ime
curr
ent
Ith,
2
sec.
IEC
The
rmal
sho
rt-t
ime
curr
ent
Ith,
2
sec.
Can
tile
ver
test
load
, 1 m
in.
Wei
ght
Cur
rent
tra
nsfo
rmer
ext
ensi
on
Low
er c
ore
leng
th (t
ole
ranc
e
± 5
mm
)
Co
re d
iam
eter
Inne
r R
ohr
-ø
Term
inal
: dis
tanc
e fr
om
the
fla
nge
pla
te (t
ole
ranc
e ±
5 m
m)
Co
re d
iam
eter
Flan
ge
des
igna
tio
n
Pit
ch c
ircl
e d
iam
eter
ø
Out
sid
e fl
ang
e d
iam
eter
ø
Seal
ing
area
: min
. dia
met
er ø
Seal
ing
area
: max
. dia
met
er ø
Num
ber
of
hole
s
Ho
le d
iam
eter
Flan
ge
pla
te t
hick
ness
Flan
ge
heig
ht
Fig
ure
Term
inal
dia
met
er ø
Fig
ure
Term
inal
dia
met
er ø
Term
inal
Len
gth
Term
inal
dia
met
er ø
Term
inal
Len
gth
Op
enin
g
Fig
ure
Fig
ure
Dia
met
er u
nder
shi
eld
Fig
ure
Dia
met
er u
nder
shi
eld
Fig
ure
Fig
ure
[kV] [kV] [kV] [kV] [kV] [kV] [kV] [kV] [A] [kA] [kA] [N] [kg] L6 L16 D1 d3 L2 D11 D3 D4 D2 D8 n v s LF Fig. d4 Fig. d2 c2 d2 c2 d5 Fig. Fig. D5 Fig. D5 Fig. Fig.
RTKK 72.5-350/2500 B 1ZCD203133
72.5 42 155 325 69 44 160 350
2600 80 46
3150
25 0 175
113
56
404 113std
var.1250 290
290 335
155 155
220 260
8 12
16 16
18 18
120 120
11 12
50 40 40 125 - - 69
20 - 95 30 - - -2700 100 48 39 300 475 65 60 40 40 125 50 125 78
2500 100 44 50 600 775 65 60 40 40 125 50 125 78
RTKK 123-550/2000 B 1ZCD203136
123 71 255 550 92 73 185 450
2120 50 37
4000
32 0 310
113
40
539 113std
var.1250 290
290 335
155 155
220 260
8 12
16 16
18 18
120 120
11 12
38 40 30 80 - - 51
20 21 - 31 95 30 322400 67 42 44 300 610 50 45 40 30 80 40 125 61
2200 67 39 47 600 910 50 45 40 30 80 40 125 61
RTKK 123-550/2500 B 1ZCD203158
123 71 255 550 92 73 185 450
2600 80 46
4000
36 0 310
133
56
539 133 std 290 335 174 260 12 16 18 120 12
50 40 40 125 - - 69
20 21 - 31 95 30 322700 100 48 54 300 610 65 60 40 40 125 50 125 78
2500 100 44 66 600 910 65 60 40 40 125 50 125 78
RTKK 145-650/2000 B 1ZCD203475
145 84 305 650 138 88 310 650
2120 67 37
4000
37 0 360
133
50
589 133 std 290 335 174 260 12 16 18 120 12
45 40 30 80 - - 61
20 21 - 31 95 30 322180 80 39 50 300 660 56 50 40 30 80 40 125 69
2000 80 35 60 600 960 56 50 40 30 80 40 125 69
RTKK 145-650/2500 B 1ZCD203234
145 84 305 650 138 88 310 650
2600 80 46
4000
43 0 360
153
56
589 153 std 290 335 195 260 12 16 18 120 12
50 40 40 125 - - 69
20 21 - 31 95 30 322700 100 48 63 300 660 65 60 40 40 125 - - 78
2500 100 44 77 600 960 65 60 40 40 125 - - 78
RTKK 170-750/2000 B 1ZCD202944
170 98 355 750 161 102 365 750
2120 80 37
5000
47 0 420
153
56
649 153 std 290 335 195 260 12 16 18 120 12
50 40 40 125 - - 69
20 21 - 31 95 30 322180 100 39 68 300 720 65 60 40 40 125 - - 78
2000 100 35 82 600 1020 65 60 40 40 125 - - 78
R
** Same shield dimensions with lateral access variant available.
Fig. 30Fig. 2
Fig. 20
Fig. 40
Fig. 31 Fig. 32
Fig. 21
Fig. 11 Fig. 12
1715 M I C A F I L R I P TR A N S FO R M E R B U S H I N G S FO R O I L- O I L A PPLI C ATI O N S O i lR I P / RTK K 7 2 . 5 – 55 0 K V
—OilRIP bushings 72.5 – 170 kVTypes with removable solid rod conductor
O I LR I P B U S H I N G S 7 2 . 5 – 170 K V T Y PE S W ITH R EM OVA B L E SO L I D R O D CO N D U C TO R
Ød2
c2
ØD1
L2
(±5)
L16
±5
(L)
Ød11
20L6
2
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
2020
0
Ø180
Ø140
172
(c2)
2226
134
(c2)
59
134
5927 27
8590
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
90Ø
92
Ø92 17
2
2226
(c2)
23 21 only on page 12&21 21 only on page 15 21 only on page 24
31 3432 35
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
2020
0
Ø180
Ø140
172
(c2)
2226
134
(c2)
59
134
5927 27
8590
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
90Ø
92
Ø92 17
2
2226
(c2)
23 21 only on page 12&21 21 only on page 15 21 only on page 24
31 3432 35
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
2020
0
Ø180
Ø140
172
(c2)
2226
134
(c2)
59
134
5927 27
8590
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
90Ø
92
Ø92 17
2
2226
(c2)
23 21 only on page 12&21 21 only on page 15 21 only on page 24
31 3432 35
6x60°
nxØv
5x4
5°
s
22.5°8x45°
15° 12x30°
30°
D3D4
D3D4
D4D3
ØD8ØD2
6x60°
nxØv
5x4
5°
s
22.5°8x45°
15° 12x30°
30°
D3D4
D3D4
D4D3
ØD8ØD2
6x60°
nxØv
5x4
5°
s
22.5°8x45°
15° 12x30°
30°
D3D4
D3D4
D4D3
ØD8ØD2
Ød5
Ød3
50
Ød5
50
Ød3
Ø95
Ød3
50
Ød5
Ø87Ø95
20a only on page 12 20b only on page 12
20 only on page 15
20
Ød4
20
Ød4
40
Type and drawingsElectric data
CurrentMechanical
dataTransformer side Cable side Flange
Transformer side terminal
Cable side terminal
Transformer side end Cable side end**
IEC 60137 (2017) IEEE C57.19.01 (2000) Standard Standard Variant 1
Fixed conductor bushings
Rat
ed v
olt
age
Um
Rat
ed f
ace-
to-e
arth
Um
/√3
AC
tes
t vo
ltag
e d
ry
Lig
htni
ng im
pul
se v
olt
age,
1.
2/50
µs
Syst
em v
olt
age
Rat
ed m
ax. l
ine-
to-g
roun
d vo
ltag
e
AC
tes
t vo
ltag
e d
ry /
wet
Lig
htni
ng im
pul
se v
olt
age,
1.
2/50
µs
Max
imum
Cur
rent
Ir (
in
dep
end
ance
of
L6)
The
rmal
sho
rt-t
ime
curr
ent
Ith,
2
sec.
IEC
The
rmal
sho
rt-t
ime
curr
ent
Ith,
2
sec.
Can
tile
ver
test
load
, 1 m
in.
Wei
ght
Cur
rent
tra
nsfo
rmer
ext
ensi
on
Low
er c
ore
leng
th (t
ole
ranc
e
± 5
mm
)
Co
re d
iam
eter
Term
inal
: dis
tanc
e fr
om
the
fla
nge
pla
te (t
ole
ranc
e ±
5 m
m)
Co
re d
iam
eter
Flan
ge
des
igna
tio
n
Pit
ch c
ircl
e d
iam
eter
ø
Out
sid
e fl
ang
e d
iam
eter
ø
Seal
ing
area
: min
. dia
met
er ø
Seal
ing
area
: max
. dia
met
er ø
Num
ber
of
hole
s
Ho
le d
iam
eter
Flan
ge
pla
te t
hick
ness
Flan
ge
heig
ht
Fig
ure
Term
inal
dia
met
er ø
Fig
ure
Term
inal
dia
met
er ø
Term
inal
Len
gth
Fig
ure
Fig
ure
Fig
ure
[kV] [kV] [kV] [kV] [kV] [kV] [kV] [kV] [A] [kA] [kA] [N] [kg] L6 L16 D1 L2 D11 D3 D4 D2 D8 n v s LF Fig. d4 Fig. d2 c2 Fig. Fig. Fig.
RTKK 123-550/3150 F 1ZCD203171
123 71 255 550 92 73 185 450
3260 100 58
4000
56 0 310
153 502 153 std 290 335 195 260 12 16 18 120 12
65 50 50 125
23 34 353300 100 58 93 300 610 85 51 50 125
3150 100 56 115 600 910 85 51 50 125
RTKK 145-650/3150 F 1ZCD203237
145 84 305 650 138 88 310 650
3260 100 58
4000
60 0 360
153 552 153 std 290 335 195 260 12 16 18 120 12
65 50 50 125
23 34 353300 100 58 96 300 660 85 51 50 125
3150 100 56 116 600 960 85 51 50 125
RTKK 145-650/4000 F 1ZCD203241
145 84 305 650 138 88 310 650
4160 100 74
4000
79 0 360
173 552 173std
var.1290 350
335 400
215 215
260 320
12 12
16 16
18 18
120 120
12 12
85 51 60 125
23 34 354200 100 74 83 300 660 95 51 60 125
4000 100 71 98 600 960 95 51 60 125
RTKK 170-750/3150 F 1ZCD203074
170 98 355 750 161 102 365 750
3260 100 58
5000
68 0 420
173 612 173std
var.1290 350
335 400
215 215
260 320
12 12
16 16
18 18
120 120
12 12
65 50 50 125
23 34 353300 100 58 107 300 720 85 51 50 125
3150 100 56 127 600 1020 95 51 50 125
RTKK 170-750/4000 F 1ZCD203085
170 98 355 750 161 102 365 750
4160 100 74
5000
86 0 420
200 612 200 std 400 450 254 365 12 20 22 150 12
95 51 60 125
23 34 354200 100 74 104 300 720 95 51 60 125
4000 100 71 120 600 1020 95 51 60 125
F
** Same shield dimensions with lateral access variant available.
Fig. 3
Fig. 12
Fig. 34 Fig. 35
Fig. 23
Fig. 50 Fig. 51
2018 M I C A F I L R I P TR A N S FO R M E R B U S H I N G S FO R O I L- O I L A PPLI C ATI O N S O i lR I P / RTK K 7 2 . 5 – 55 0 K V O I LR I P B U S H I N G S 1 2 3 – 170 K V T Y PE S W ITH FI X ED CO N D U C TO R
—OilRIP bushings 123 – 170 kVTypes with fixed conductor
L16
±5
ØD1
L2
(±5)
(L)
20
c2
Ød11
Ød2
L6
6x60°
nxØv
5x4
5°
s
22.5°8x45°
15° 12x30°
30°
D3D4
D3D4
D4D3
ØD8ØD2
6x60°
nxØv
5x4
5°
s
22.5°8x45°
15° 12x30°
30°
D3D4
D3D4
D4D3
ØD8ØD2
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
2020
0
Ø180
Ø140
172
(c2)
2226
134
(c2)
59
134
5927 27
8590
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
90Ø
92
Ø92 17
2
2226
(c2)
23 21 only on page 12&21 21 only on page 15 21 only on page 24
31 3432 35
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
2020
0
Ø180
Ø140
172
(c2)
2226
134
(c2)
59
134
5927 27
8590
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
90Ø
92
Ø92 17
2
2226
(c2)
23 21 only on page 12&21 21 only on page 15 21 only on page 24
31 3432 35
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
2020
0
Ø180
Ø140
172
(c2)
2226
134
(c2)
59
134
5927 27
8590
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
90Ø
92
Ø92 17
2
2226
(c2)
23 21 only on page 12&21 21 only on page 15 21 only on page 24
31 3432 35
30
40
20
Ød4
Ø18 8525
30 Ød4
Ø18
8525
204
0
4020
40 85
25
Ø18
Ød4
30
50 5141
30
40
20
Ød4
Ø18 8525
30 Ød4
Ø18
8525
204
0
40
204
0 8525
Ø18
Ød4
30
50 5141
C
Type and drawingsElectric data
CurrentMechanical
dataTransformer side Cable side Flange
Cable side terminal Transformer side end Cable side end
IEC 60137 (2017) IEEE C57.19.01 (2000) Standard Variant Standard Standard Var.1 Var.2
Cable conductor bushings
Rat
ed v
olt
age
Um
Rat
ed f
ace-
to-e
arth
Um
/ √
3
AC
tes
t vo
ltag
e d
ry
Lig
htni
ng im
pul
se v
olt
age,
1.
2/50
µs
Swit
chin
g im
pul
se v
olt
age
250/
250
0 μ
s
Syst
em v
olt
age
Rat
ed m
ax. l
ine-
to-g
roun
d vo
ltag
e
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/
250
0 μ
s
Max
imum
Cur
rent
Ir
(in
dep
end
ance
of
L6)
Wit
h co
pp
er c
able
sec
tio
n S
The
rmal
sho
rt-t
ime
curr
ent
Ith,
2
sec.
IEC
The
rmal
sho
rt-t
ime
curr
ent
Ith,
2
sec.
Can
tile
ver
test
load
, 1 m
in.
Wei
ght
Cur
rent
tra
nsfo
rmer
ext
ensi
on
Low
er c
ore
leng
th (t
ole
ranc
e
± 5
mm
)
Co
re d
iam
eter
Inne
r R
ohr
-ø
Term
inal
: dis
tanc
e fr
om
the
fla
nge
pla
te (t
ole
ranc
e ±
5 m
m)
Cab
le b
olt
: dis
tanc
e fr
om
the
fl
ang
e p
late
Co
re d
iam
eter
Flan
ge
des
igna
tio
n
Pit
ch c
ircl
e d
iam
eter
ø
Out
sid
e fl
ang
e d
iam
eter
ø
Seal
ing
area
: min
. dia
met
er ø
Seal
ing
area
: max
. dia
met
er ø
Num
ber
of
hole
s
Ho
le d
iam
eter
Flan
ge
pla
te t
hick
ness
Flan
ge
heig
ht
Fig
ure
Term
inal
dia
met
er ø
Term
inal
Len
gth
Term
inal
dia
met
er ø
Term
inal
Len
gth
Fig
ure
Fig
ure
Dia
met
er u
nder
shi
eld
Fig
ure
Fig
ure
[kV] [kV] [kV] [kV] [kV] [kV] [kV] [kV] [kV] [kV] [A] [mm2] [kA] [kA] [N] [kg] L6 L16 D1 d3 L2 L4 D11 D3 D4 D2 D8 n v s LF Fig. d2 c2 d2 c2 Fig. Fig. D5 Fig. Fig.
RTKK 245-1050/800 1ZCD203208
245 141 505 1050 750 230 146 425 900 -
900 500 30 16
4000
40 0 590
173
40
819 644 173std
var.1290 350
335 400
215 215
260 320
12 12
16 16
18 18
120 120
12 12
30 80 - -
21 31 95 31 32960 665 40 17 50 300 890 50 30 80 40 125
880 665 40 16 59 600 1190 50 30 80 40 125
RTKK 245-1050/1600 1ZCD203569
245 141 505 1050 750 230 146 425 900 -
1300 665 40 23
4000
58 0 590
200
56
819 674 200 std 400 450 254 365 12 20 22 150 12
30 80 40 125
21 31 95 31 32
1460 840 48 26 69 300 890 65 30 80 40 125
1330 840 48 24 80 600 1190 65 30 80 40 125
1600, 2000* 840 48, 43* 28, 35 58 0 590 56 30 80 40 125
1750, 2200* 1200 65, 52* 31, 39 69 300 890 65 30 80 40 125
1600, 2010* 1200 65, 52* 28, 35 80 600 1190 65 30 80 40 125
RTKK 362-1175/1250 1ZCD203637
362 209 560 1175 950 - - - - -
880 665 40 16
5000
74 0 590
240
56
849 674 240 std 400 450 294 365 12 20 22 150 12
30 80 40 125
22 33 - - -
1100 840 48 19 91 300 890 65 30 80 40 125
960 840 48 17 107 600 1190 65 30 80 40 125
1250 840 48 22 74 0 590 56 30 80 40 125
1330 1200 65 22 91 300 890 65 30 80 40 125
1250 1200 65 22 107 600 1190 65 30 80 40 125
RTKK 362-1175/1600 1ZCD203640
362 209 560 1175 950 - - - - -
1800 1680 87 32
5000
91 0 590
280
80
849 674 280 std 450 500 334 415 12 20 22 150 12
30 80 40 125
22 33 - - -1700 1680 87 30 113 300 890 80 30 80 40 125
1600 1680 87 28 136 600 1190 80 30 80 40 125
RTKK 420-1550/1600 1ZCD203652
420 243 750 1550 1175 - - - - -
880 665 40 16
5000
115 0 720
280
65
1069 894 280 std 450 500 334 415 12 20 22 150 12
30 80 40 125
22 33 - - -
1100 840 48 19 136 300 1020 80 30 80 40 125
960 840 48 17 159 600 1320 80 30 80 40 125
1250 840 48 22 115 100 720 65 30 80 40 125
1325 1200 65 23 136 300 1020 80 30 80 40 125
1250 1200 65 22 159 600 1320 80 30 80 40 125
1650, 2180* 1200 65, 52* 28, 35 115 0 720 65 30 80 40 125
1700, 2120* 1680 87, 70* 31, 39 136 300 1020 80 30 80 40 125
1600, 2000* 1680 87, 70* 28, 35 159 600 1320 80 30 80 40 125
RTKK 550-1800/1250 1ZCD203193
550 318 870 1800 1300 - - - - -
1350 1200 65 24
5000
107 0 850
333
65
1209 1034 333 std 620 680 387 580 12 22 30 150 12
30 80 40 125
22 33 - - -1350 1680 87 24 125 300 1150 80 30 80 40 125
1250 1680 87 22 142 600 1450 80 30 80 40 125
*With high temperature insulation only.
Fig. 4
Fig. 12 Fig. 13
Fig. 31 Fig. 32 Fig. 33
Fig. 21
Fig. 22
2321 M I C A F I L R I P TR A N S FO R M E R B U S H I N G S FO R O I L- O I L A PPLI C ATI O N S O i lR I P / RTK K 7 2 . 5 – 55 0 K V
—OilRIP bushings 245 – 550 kVTypes with cable bolt for draw lead
O I LR I P B U S H I N G S 2 4 5 – 55 0 K V T Y PE S W ITH C A B L E B O LT FO R D R AW L E A D
c2
L4
cab
le b
olt
s
Ød1
(L)
Ød2
20L6 Ød1
c2 Ød2 (L
)
20L6
L16
±5
Ød1
(L)
c2
L2
(±5)
L16
±5
L2
(±5)
L16
±5
L2
(±5)
Ød2
20L6
Ød11 Ød11 Ød11
654
16x22.5°
D3D4
11.25°
6x60°
nxØv
5x4
5°
s
22.5°8x45°
15° 12x30°
30°
D3D4
D3D4
D4D3
ØD8ØD2
6x60°
nxØv
5x4
5°
s
22.5°8x45°
15° 12x30°
30°
D3D4
D3D4
D4D3
ØD8ØD2
225
225
25 25
163
28
(L2)
Ø292
Ø292
Ø176
Ø176
Ø292
Ø176
Ø292
Ø176
200
2228
(L2)
Ød3
225
25
Ø292
Ø176
Ød3
36 332422 only on page 2422 only on page 21
59
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
2020
0
Ø180
Ø140
172
(c2)
2226
134
(c2)
59
134
5927 27
8590
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
90Ø
92
Ø92 17
2
2226
(c2)
23 21 only on page 12&21 21 only on page 15 21 only on page 24
31 3432 35
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
2020
0
Ø180
Ø140
172
(c2)
2226
134
(c2)
59
134
5927 27
8590
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
90Ø
92
Ø92 17
2
2226
(c2)
23 21 only on page 12&21 21 only on page 15 21 only on page 24
31 3432 35
225
225
25 25
163
28
(L2)
Ø292
Ø292
Ø176
Ø176
Ø292
Ø176
Ø292
Ø176
200
2228
(L2)
Ød3
225
25
Ø292
Ø176
Ød3
36 332422 only on page 2422 only on page 21
59
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
2020
0
Ø180
Ø140
172
(c2)
2226
134
(c2)
59
134
5927 27
8590
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
90Ø
92
Ø92 17
2
2226
(c2)
23 21 only on page 12&21 21 only on page 15 21 only on page 24
31 3432 35
R
Type and drawingsElectric data
CurrentMechanical
dataTransformer side Cable side Flange
Transformer side terminal
Cable side terminal Transformer side end Cable side end
IEC 60137 (2017) IEEE C57.19.01 (2000) Standard Variant Standard Var. 1 Standard Var. 1 Var. 2
Removable solid rod conductor
Rat
ed v
olt
age
Um
Rat
ed f
ace-
to-e
arth
Um
/√3
AC
tes
t vo
ltag
e d
ry
Lig
htni
ng im
pul
se v
olt
age,
1.
2/50
µs
Swit
chin
g im
pul
se v
olt
age
250/
250
0 μ
s
Syst
em v
olt
age
Rat
ed m
ax. l
ine-
to-g
roun
d vo
ltag
e
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/
250
0 μ
s
Max
imum
Cur
rent
Ir (
in
dep
end
ance
of
L6)
The
rmal
sho
rt-t
ime
curr
ent
Ith,
2
sec.
IEC
The
rmal
sho
rt-t
ime
curr
ent
Ith,
2
sec.
Can
tile
ver
test
load
, 1 m
in.
Wei
ght
Cur
rent
tra
nsfo
rmer
ext
ensi
on
Low
er c
ore
leng
th (t
ole
ranc
e
± 5
mm
)
Co
re d
iam
eter
Inne
r R
ohr
-ø
Term
inal
: dis
tanc
e fr
om
the
fla
nge
pla
te (t
ole
ranc
e ±
5 m
m)
Co
re d
iam
eter
Flan
ge
des
igna
tio
n
Pit
ch c
ircl
e d
iam
eter
ø
Out
sid
e fl
ang
e d
iam
eter
ø
Seal
ing
area
: min
. dia
met
er ø
Seal
ing
area
: max
. dia
met
er ø
Num
ber
of
hole
s
Ho
le d
iam
eter
Flan
ge
pla
te t
hick
ness
Flan
ge
heig
ht
Fig
ure
Term
inal
dia
met
er ø
Fig
ure
Term
inal
dia
met
er ø
Term
inal
leng
th
Term
inal
dia
met
er ø
Term
inal
leng
th
Op
enin
g
Fig
ure
Fig
ure
Dia
met
er u
nder
shi
eld
Fig
ure
Dia
met
er u
nder
shi
eld
Fig
ure
Fig
ure
[kV] [kV] [kV] [kV] [kV] [kV] [kV] [kV] [kV] [kV] [A] [kA] [kA] [N] [kg] L6 L16 D1 d3 L2 D11 D3 D4 D2 D8 n v s LF Fig. d4 Fig. d2 c2 d2 c2 d5 Fig. Fig. D5 Fig. D5 Fig. Fig.
RTKK 245-1050/2000 B 1ZCD203584
245 141 505 1050 750 230 146 425 900 -
2080 80 37
5000
81 0 590
200
56
849 200 std 400 450 254 365 12 20 22 150 12
50 41 40 125 - -
- 21 - - 31 95 30 322160 100 38 111 300 890 65 60 41 40 125 50 125
2000 100 35 130 600 1190 65 60 41 40 125 50 125
RTKK 362-1175/2000 B 1ZCD203643
362 209 560 1175 950 - - - - -
2160 100 38
5000
144 0 590
280
80
849 280 std 450 500 334 415 12 20 22 150 12
75 41 40 125 50 125
- 22 - - 33 - - -2080 100 37 175 300 890 80 75 41 40 125 50 125
2000 100 35 213 600 1190 80 75 41 40 125 50 125
RTKK 420-1550/2000 B 1ZCD203126
420 243 750 1550 1175 - - - - -
2080 100 37
5000
158 0 720
280
65
1069 280 std 450 500 334 415 12 20 22 150 12
60 41 30 80 40 125
- 22 - - 33 - - -2160 100 38 215 300 1020 80 75 41 30 80 40 125
2000 100 35 249 600 1320 80 75 41 30 80 40 125
RTKK 550-1800/1600 B 1ZCD203232
550 318 870 1800 1300 500 318 750 1675 1175
1660 100 29
5000
155 0 850
333
65
1209 333 std 620 680 387 580 16 22 30 150 12
60 41 30 80 40 125
- 22 - - 33 - - -1680 100 30 202 300 1150 80 75 41 30 80 40 125
1600 100 28 242 600 1450 60 75 41 30 80 40 125
Fig. 31Fig. 5 Fig. 32 Fig. 33
Fig. 21
Fig. 41
Fig. 22
Fig. 12 Fig. 13
2624 M I C A F I L R I P TR A N S FO R M E R B U S H I N G S FO R O I L- O I L A PPLI C ATI O N S O i lR I P / RTK K 7 2 . 5 – 55 0 K V O I LR I P B U S H I N G S 2 4 5 – 55 0 K V T Y PE S W ITH R EM OVA B L E SO L I D R O D CO N D U C TO R
—OilRIP bushings 245 – 550 kVTypes with removable solid rod conductor
30
40
20
Ød4
Ø18 8525
30 Ød4
Ø18
8525
204
0
40
204
0 8525
Ø18
Ød4
30
50 5141
c2
L4
cab
le b
olt
s
Ød1
(L)
Ød2
20L6 Ød1
c2 Ød2
(L)
20L6
L16
±5
Ød1
(L)
c2
L2
(±5)
L16
±5
L2
(±5)
L16
±5
L2
(±5)
Ød220
L6
Ød11 Ød11 Ød11
654
225
225
25 25
163
28
(L2)
Ø292
Ø292
Ø176
Ø176
Ø292
Ø176
Ø292
Ø176
200
2228
(L2)
Ød3
225
25
Ø292
Ø176
Ød3
36 332422 only on page 2422 only on page 21
5922
5
225
25 25
163
28
(L2)
Ø292
Ø292
Ø176
Ø176
Ø292
Ø176
Ø292
Ø176
200
2228
(L2)
Ød3
225
25
Ø292
Ø176
Ød3
36 332422 only on page 2422 only on page 21
59
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
2020
0
Ø180
Ø140
172
(c2)
2226
134
(c2)
59
134
5927 27
8590
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
90Ø
92
Ø92 17
2
2226
(c2)
23 21 only on page 12&21 21 only on page 15 21 only on page 24
31 3432 35
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
2020
0
Ø180
Ø140
172
(c2)
2226
134
(c2)
59
134
5927 27
8590
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
90Ø
92
Ø92 17
2
2226
(c2)
23 21 only on page 12&21 21 only on page 15 21 only on page 24
31 3432 35
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
2020
0
Ø180
Ø140
172
(c2)
2226
134
(c2)
59
134
5927 27
8590
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
90Ø
92
Ø92 17
2
2226
(c2)
23 21 only on page 12&21 21 only on page 15 21 only on page 24
31 3432 35
16x22.5°
D3D4
11.25°
6x60°
nxØv
5x4
5°
s
22.5°8x45°
15° 12x30°
30°
D3D4
D3D4
D4D3
ØD8ØD2
6x60°
nxØv
5x4
5°
s
22.5°8x45°
15° 12x30°
30°
D3D4
D3D4
D4D3
ØD8ØD2
Type and drawingsElectric data
CurrentMechanical
dataTransformer side Cable side Flange
Transformer side terminal
Cable side terminal
Transformer side end Cable side end
IEC 60137 (2017) IEEE C57.19.01 (2000) Standard Standard Var.1
Fixed conductor bushings
Rat
ed v
olt
age
Um
Rat
ed f
ace-
to-e
arth
Um
/√3
AC
tes
t vo
ltag
e d
ry
Lig
htni
ng im
pul
se v
olt
age,
1.
2/50
µs
Swit
chin
g im
pul
se v
olt
age
250/
250
0 μ
s
Syst
em v
olt
age
Rat
ed m
ax. l
ine-
to-g
roun
d vo
ltag
e
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/
250
0 μ
s
Max
imum
Cur
rent
Ir (
in
dep
end
ance
of
L6)
The
rmal
sho
rt-t
ime
curr
ent
Ith,
2
sec.
IEC
The
rmal
sho
rt-t
ime
curr
ent
Ith,
2
sec.
Can
tile
ver
test
load
, 1 m
in.
Wei
ght
Cur
rent
tra
nsfo
rmer
ext
ensi
on
Low
er c
ore
leng
th (t
ole
ranc
e
± 5
mm
)
Co
re d
iam
eter
Term
inal
: dis
tanc
e fr
om
the
fla
nge
pla
te (t
ole
ranc
e ±
5 m
m)
Co
re d
iam
eter
Pit
ch c
ircl
e d
iam
eter
ø
Out
sid
e fl
ang
e d
iam
eter
ø
Seal
ing
area
: min
. dia
met
er ø
Seal
ing
area
: max
. dia
met
er ø
Num
ber
of
hole
s
Ho
le d
iam
eter
Flan
ge
pla
te t
hick
ness
Flan
ge
heig
ht
Fig
ure
Term
inal
dia
met
er ø
Fig
ure
Term
inal
dia
met
er ø
Term
inal
Len
gth
Fig
ure
Fig
ure
Fig
ure
[kV] [kV] [kV] [kV] [kV] [kV] [kV] [kV] [kV] [kV] [A] [kA] [kA] [N] [kg] L6 L16 D1 L2 D1.1 D3 D4 D2 D8 n v s LF Fig. d4 Fig d2 c2 Fig Fig. Fig.
RTKK 245-1050/3150 F 1ZCD203622
245 141 505 1050 750 230 146 425 900 -
3260 100 58
5000
152 0 590
240 782 240 400 450 294 365 12 20 22 150 12
85 51 50 125
23 34 353300 100 58 155 300 890 95 51 50 125
3150 100 56 182 600 1190 95 51 50 125
RTKK 245-1050/4000 F 1ZCD203634
245 141 505 1050 750 230 146 425 900 -
4160 100 74
5000
155 0 590
280 782 280 450 500 294 415 12 20 22 150 12
95 51 60 125
23 34 354200 100 74 183 300 890 334 51 60 125
4000 100 71 211 600 1190 334 51 60 125
RTKK 362-1175/2500 F 1ZCD203646
362 209 560 1175 950 - - - - -
2600 100 46
5000
155 0 590
280 812 280 450 500 334 415 12 20 22 150 12
85 51 40 125
24 36 -2650 100 47 183 300 890 334 51 40 125
2500 100 44 211 600 1190 334 51 40 125
RTKK 420-1550/2500 F 1ZCD203168
420 243 750 1550 1175 - - - - -
2600 100 46
5000
138 0 720
280 1032 280 450 500 334 415 12 20 22 150 12
65 50 40 125
24 36 -2650 100 47 196 300 1020 334 51 40 125
2500 100 44 224 600 1320 334 51 40 125
RTKK 550-1800/2000 F 1ZCD203246
550 318 870 1800 1300 500 318 750 1675 1175
2300 100 41
5000
182 0 850
333 1172 333 620 680 387 580 16 22 30 150 12
65 50 40 125
24 36 -2150 100 38 249 300 1150 387 51 40 125
2000 100 35 282 600 1450 387 51 40 125
F
Fig. 6
Fig. 12 Fig. 13
Fig. 34 Fig. 35 Fig. 36
Fig. 23 Fig. 24
Fig. 50 Fig. 51
2927 O I LR I P B U S H I N G S 2 4 5 – 55 0 K V T Y PE S W ITH FI X ED CO N D U C TO RM I C A F I L R I P TR A N S FO R M E R B U S H I N G S FO R O I L- O I L A PPLI C ATI O N S O i lR I P / RTK K 7 2 . 5 – 55 0 K V
—OilRIP bushings 245 – 550 kVTypes with fixed conductor
c2
L4
cab
le b
olt
s
Ød1
(L)
Ød2
20L6 Ød1
c2 Ød2
(L)
20L6
L16
±5
Ød1
(L)
c2
L2
(±5)
L16
±5
L2
(±5)
L16
±5
L2
(±5)
Ød2
20L6
Ød11 Ød11 Ød11
654
16x22.5°
D3D4
11.25°
6x60°
nxØv
5x4
5°
s
22.5°8x45°
15° 12x30°
30°
D3D4
D3D4
D4D3
ØD8ØD2
6x60°
nxØv
5x4
5°
s
22.5°8x45°
15° 12x30°
30°
D3D4
D3D4
D4D3
ØD8ØD2
225
225
25 25
163
28
(L2)
Ø292
Ø292
Ø176
Ø176
Ø292
Ø176
Ø292
Ø176
200
2228
(L2)
Ød3
225
25
Ø292
Ø176
Ød3
36 332422 only on page 2422 only on page 21
59
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
2020
0
Ø180
Ø140
172
(c2)
2226
134
(c2)
59
134
5927 27
8590
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
90Ø
92
Ø92 17
2
2226
(c2)
23 21 only on page 12&21 21 only on page 15 21 only on page 24
31 3432 35
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
2020
0
Ø180
Ø140
172
(c2)
2226
134
(c2)
59
134
5927 27
8590
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
90Ø
92
Ø92 17
2
2226
(c2)
23 21 only on page 12&21 21 only on page 15 21 only on page 24
31 3432 35
225
225
25 25
163
28
(L2)
Ø292
Ø292
Ø176
Ø176
Ø292
Ø176
Ø292
Ø176
200
2228
(L2)
Ød3
225
25
Ø292
Ø176
Ød3
36 332422 only on page 2422 only on page 21
59
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
Ød3
2419
6
Ø180
Ø140
2020
0
Ø180
Ø140
172
(c2)
2226
134
(c2)
59
134
5927 27
8590
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
Ø180
Ø140
90Ø
92
Ø92 17
2
2226
(c2)
23 21 only on page 12&21 21 only on page 15 21 only on page 24
31 3432 35
30
40
20
Ød4
Ø18 8525
30 Ød4
Ø18
8525
204
0
40
204
0 8525
Ø18
Ød4
30
50 5141
30
40
20
Ød4
Ø18 8525
30 Ød4
Ø18
8525
204
0
40
204
0 8525
Ø18
Ød4
30
50 5141
— RIP 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
— RIP Railway bushings
Series: RMF / RTAK Porcelain insulatorVoltage range: from 15 to 36 kVCurrent range: up to 2,000 A
— RIP Wall bushings
Series: RMI indoor-indoorSeries: RMF outdoor-indoorSeries: RMFF outdoor-outdoorPorcelain or silicone composite insulatorVoltage range: from 245 to 300 kVCurrent range: up to 5,000 A
ABB offers an extensive range of high-quality products. They can be adapted to different transformer and plant designs and thus meet the requirements of a wide variety of applications. We specialize in tailor-made solutions, including custom designs and small series production.
Our range of products encompasses bushings for oil-air, oil-SF6, oil-oil transformer systems, and air-SF6 bushings for GIS. If you would like any more information, please contact 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.
— RIP Transformer bushings, oil-air
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 5000 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
— RIP air-SF6 bushings for GIS
Series: RAKF Porcelain or silicone composite insulatorVoltage range: from 245 to 550 kVCurrent range: up to 4,000 A
32 33M I C A F I L R I P TR A N S FO R M E R B U S H I N G S FO R O I L- O I L A PPLI C ATI O N S O i lR I P / RTK K 7 2 . 5 – 55 0 K V
—Leading in bushing technology
— RIS Transformer bushings, oil-air
Series: EasyDry / DMB-OASilicone composite insulator with straight shedsVoltage range: from 24 to 170 kVCurrent range: up to 2500 A
• More compact design with even higher performance.
• Fully type tested product portfolio according to IEC 60137 (2017) and IEEE C57.19.01 (2000) standards in an accredited and independent test laboratory.
• Partial discharge-free up to double phase to ground voltage.
• Low dielectric losses (tan δ ≤ 0.40 %).• Interchangeability: The availability of both the
single and double flange allows for the bushing dimension to remain the same.
• Remote measuring tap for single flange is available as an option.
• Easy and safe installation due to the new clamping system.
• Safer testing with a bayonet shield, optimized for different test configurations.
• Flexibility in design allows easy customization upon request.
• Detailed simulation and analyses prove the reliability of the product.
• All MICAFIL bushings are maintenance free.• 100 years of experience in developing and
worldwide marketing of high voltage bushings.
35
—Customer values and advantages
M I C A F I L R I P TR A N S FO R M E R B U S H I N G S FO R O I L- O I L A PPLI C ATI O N S O i lR I P / RTK K 7 2 . 5 – 55 0 K V
—ABB MICAFIL 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 OilRIP 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 OilRIP series, we will continue to live up to our reputation.
When making your enquiry please specify the following:
—Enquiry form
Voltage
72.5 kV
123 kV
145 kV
170 kV
245 kV
362 kV
420 kV
550 kV
Current conductor Cable bolt for draw lead Fixed conductor Solid rod conductor
Cable side terminalDimensions:
Standard Variant 1*
Cable side endDimensions:
Standard Lateral access No shield
Transformer side end Standard Variant 1* Shield on request
* If available
Flange pitch circle ∅ Standard Variant 1*
Remote measuring tap
Current transformer extension L6 (mm)
0 100 200 300 400 500 600
IEC Standard IEEE Standard
Routine types and tests
Current
800 A
1,250 A
1,600 A
2,000 A
2,500 A
3,150 A
4,000 A
Company name .................................................................................................................................................................
Name / First name ...........................................................................................................................................................
Phone ..................................................................................................................................................................................
Email ...................................................................................................................................................................................
End customer name ........................................................................................................................................................
Project name .....................................................................................................................................................................
Ambient temperature: .................................................
Transformer oil temperature: ....................................
Cable oil temperature: .................................................
Type: ................................................................................
Quantity: ........................................................................
Drawing no 1ZCD 2 0Custom modificationsOn request, ABB MICAFIL can make custom modifications in areas such as flange dimensions, terminal variants, and other lower part lengths. We are happy to provide information on feasibility, price and delivery time of such custom modifications.
—ABB Switzerland Ltd
Insulation and Components, MICAFIL Bushings, Badenerstrasse 780, CH-8048 Zurich, Switzerlandabb.com/transformercomponents
Our order confirmation includes drawings of the bushing and a detailed bushing data sheet.
—Enquiry form
—ABB Switzerland Ltd Insulation and Components, MICAFIL Bushings, Badenerstrasse 780, CH-8048 Zurich, Switzerland abb.com/transformercomponents
36 M I C A F I L R I P TR A N S FO R M E R B U S H I N G S FO R O I L- O I L A PPLI C ATI O N S O i lR I P / RTK K 7 2 . 5 – 55 0 K V
— NoteWe 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.
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—ABB Switzerland Ltd Insulation and Components MICAFIL BushingsBadenerstrasse 780CH-8048 ZurichSwitzerlandPhone: +41 58 586 03 33E-mail: info.micafil@ch.abb.com abb.com/transformercomponents
24/7 Service hotline for technical issues Phone +41 (0)58 586 07 70
Custom modificationsOn request, ABB MICAFIL can make custom modifications in areas such as flange dimensions, terminal variants, and other lower part lengths. We are happy to provide information on feasibility, price and delivery time of such custom modifications.
—ABB Switzerland Ltd
Insulation and Components, MICAFIL Bushings, Badenerstrasse 780, CH-8048 Zurich, Switzerlandabb.com/transformercomponents
Our order confirmation includes drawings of the bushing and a detailed bushing data sheet.
—Enquiry form