Rockwill 1250kVA 11kV oil immersed hermetically sealed distribution transformer which is manufactured in China. It is intended for operation in power supply with voltage of 11kV. The hermetically sealed distribution transformers are totally maintenance free and are particularly suited for use in exposed outdoor environments such as moisture, salt or dust laden atmospheres (operational temperature is from -60˚C to +40˚C).
Specifications of 1250kVA 11kV Hermetically Sealed Distribution Transformer:
- Capacity: 1250kVA
- Rated Voltage: 11kV
- Frequency: 50Hz/60Hz
- Cooling Method: Oil Immersed Type
- Manufacturing Standard: IEC60076
- Transport Package: Wooden Packing
Features of 1250kVA 11kV Hermetically Sealed Distribution Transformer:
- Ultralow no-load loss
- Energy saving and great power consuming efficiency
- Copper/ aluminum coil winding, strong short circuit resistance ability
- Dyn11 coil connection decrease the influences of harmonic wave
- Fully sealed structure for maintenance free
- Slow insulation aging & longer serving life
|
Rated capacity kVA
|
Voltage combination
|
NO-load loss W
|
Load loss W
|
No-load current
%
|
Short-circuit
Impedance
|
|
HV (kV)
|
HV tapping range
|
LV (kV)
|
Connection symbol
|
|
30
|
6.3kV
10.5kV
11kV
13.2kV
13.8kV
15kV
|
±2
× 2.5%;
Or ±5%
|
0.4
|
Dyn11 or Yyn0
|
90
|
660
|
2.1
|
5.5
|
|
50
|
130
|
960
|
2.0
|
|
63
|
150
|
1145
|
1.9
|
|
80
|
180
|
1370
|
1.8
|
|
100
|
200
|
1650
|
1.6
|
|
125
|
240
|
1980
|
1.5
|
|
160
|
290
|
2420
|
1.4
|
|
200
|
330
|
2860
|
1.3
|
|
250
|
400
|
3350
|
1.2
|
|
315
|
480
|
4010
|
1.1
|
|
400
|
570
|
4730
|
1.0
|
|
500
|
680
|
5660
|
1.0
|
|
630
|
810
|
6820
|
0.9
|
6
|
|
800
|
980
|
8250
|
0.8
|
|
1000
|
1150
|
11330
|
0.7
|
|
1250
|
1350
|
13200
|
0.7
|
|
1600
|
1630
|
15950
|
0.6
|
|
2000
|
1950
|
19140
|
0.6
|
|
2500
|
2340
|
22200
|
0.6
|
