21 Pad Mounted Station Service Transformer 500KVA
9
500 KVA 13.8/0.231 KV SERVICE TRANSFORMER Solidly 500 Dyn11 13.8 kV 231/133 V
Transcript of 21 Pad Mounted Station Service Transformer 500KVA
500 KVA 13.8/0.231 KV SERVICE TRANSFORMER
Solidly
500
Dyn11
13.8 kV
231/133 V
95
4
38
3
500 KVA 13.8/0.231 KV SERVICE TRANSFORMER
5%
*
+/- 5%
50
55
68
As per IEC/ANSI standard
48
500 KVA 13.8/0.231 KV SERVICE TRANSFORMER
Copper
As per clause 4.3.6
IEC-60214
+2 , -2
+2 , -2
+/- 5%
Manual
1
Yes
Horizontal
R , Y , B
r , y , b
IEC-60137
SEC Approved
SEC Approved
Outdoor
Porcelain
Brown
13.8 kV
17.5 kV
95
500 KVA 13.8/0.231 KV SERVICE TRANSFORMER
38
250
Min:25mm / kVmax
1
*Tinned Copper
XLPE
3Cx50 mm2
Copper
3
As Per SOW
Heat Shrinkable
IEC-60137
SEC Approved
SEC Approved
Outdoor Type
Porcelain
Brown
231
*
4
3
90
1
1600
**
Tinned Copper
XLPE
500 KVA 13.8/0.231 KV SERVICE TRANSFORMER
XLPE
630
Copper
1
Min : 2
Heat Shrinkable
Steel
Min : 3 mm
IP54
*
*
SEC Approved
SEC Approved
Dial Type
Thermometer
Yes
*IP54
0-120 ° C
SEC Approved
SEC Approved
Magnetic Type
*IP54
Min,25 ° C, Max
SEC Approved
SEC Approved
Dial Type
*IP54
500 KVA 13.8/0.231 KV SERVICE TRANSFORMER
IP54
*
SEC Approved
SEC Approved
Self Resetting
**
Pet Cock Type
Iron body with Bronze / Steel trim
20 mm
5 mm
Yes
20 mm
SEC Approved
*
***
**
Attached
As Per Clause 4.15
500 KVA 13.8/0.231 KV SERVICE TRANSFORMER
****
*
As Per IEC60076-1Clause 10.1.3
500 KVA 13.8/0.231 KV SERVICE TRANSFORMER
Additional technical data as per attached sheet shall be complied by the Bidder / Manufacturer.
ADDITIONAL TECHNICAL DATA 500kVA, Dyn11, 13.8/0.231kV AUXILIARY TRANSFORMER
Sr. No.
DESCRIPTION UNIT DATA REQUIRED DATA OFFERED
Application standard IEC-60076Type of design OutdoorNumber of phases No 3
Number of windings No 2Frequency Hz 60
Cooling System ONAN
1.
Design Max. Ambient temperature ºC 500
RATING
Maximum duration of overload at 50ºC with 50% initial load & without loss of life 25% Minutes 250
50% Minutes 22 100 % Minutes 0.09
A 20.92
Normal rated current at principal Tapping HVLV A 1312.20
Impedance * % 5
2
Zero sequence impedance at rated voltage & frequency
Ohm/p
Induced over voltage3
Induced over voltage
HV Winding LV WindingTest Frequency
kV.rmskV.rms
Hz
2xUr2xUr120
4 Constructional FeaturesMaterial of winding insulation
Maximum flux density T
Thermal upgraded insulation paper
1.65 Tanks
Minimum withstand pressure of the tank for 24hours without leakage above the normal
operating pressure measured at the bottom of the tank
Kpa 25% above the normal operating pressure measured at Tank bottom
6 OIL
Producer
Type and trademark
Applicable Standard Specification(Reference number &date of issue) As Per 54-TMSS-01
.
