High-Efficiency Oil-Immersed Power Transformer

High-Efficiency Oil-Immersed Power Transformer

This oil-immersed power transformer is engineered for robust performance and energy efficiency in demanding electrical applications. It is suitable for a wide range of primary and secondary voltage configurations, supporting frequencies of 60Hz and 50Hz. The transformer offers excellent efficiency ratings, particularly at 100% and 50% load, minimizing energy loss and operational costs. Its construction is designed for durability and long service life in industrial environments. Available in multiple configurations, this transformer is a versatile solution for power distribution networks, substations, and industrial facilities requiring stable and efficient power transformation.

General Specifications

High-Efficiency Oil Transformer

This section details the specifications for the High-Efficiency Oil Transformer.

3P 22.9kV-L.V Ratings

Phase: 3φ

 Frequency: 60㎐, 50㎐

 Primary voltage: 22.9kV

 Secondary voltage: 220, 380, 440, 208y/120, 220y/127. 380y/220, 400y/230, 440y/254V

 TAP Voltage: 23.9 - R22.9 - 21.9 - 20.9 - 19.9kV

 Vector: Dd0, Dyn11.etc.

CAPACITY (kVA)Exciting Current Io(%)Voltage Req. ε (%)Efficiency(%) 100%Efficiency(%) 50%Dimension(mm)
WDH
 1002.01.598.8099.0012107501480
2002.01.598.8099.1012708201390
3002.01.598.9099.2013208701500
4001.81.498.9099.2513909201450
5001.81.498.9099.2513709501500
6001.81.499.0099.30141010001530
7501.71.399.0599.30142011201550
10001.71.399.1099.35157011501730
12501.61.299.1599.40176013301840
15001.61.299.2099.45202013502190
20001.51.199.2099.45203014502200
25001.41.099.3099.50252015002460
30001.31.099.3099.50255015002500

3p 6.6/3.3kV-L.V Ratings

Phase: 3φ

 Frequency: 60㎐, 50㎐

 Primary voltage: 6.6/3.3㎸

 Secondary voltage: 220, 380, 440, 208y/120, 220y/127. 380y/220, 400y/230, 440y/254V

 TAP Voltage: 6.9 - R6.6 - 6.3 - 6.0 - 5.7kV / 3.45 - R3.3 - 3.15 - 3.0 - 2.85kV

 Vector: Dd0, Dyn11.etc.

CAPACITY (kVA)Exciting Current Io(%)Voltage Req. ε (%)Efficiency(%) 100%Efficiency(%) 50%Dimension(mm)
WDH
 1002.01.598.8099.0012507301250
2002.01.598.8099.1012708001320
3002.01.598.9099.2013008501430
4001.81.498.9099.2513209001430
5001.81.498.9099.2513509101470
6001.81.499.0099.3013709801490
7501.71.399.0599.30141010501530
10001.71.399.1099.35158011501600
12501.61.299.1599.40170012001750
15001.61.299.2099.45200013502150
20001.51.199.2099.45235014502150
25001.41.099.3099.50235015502250
30001.31.099.3099.50240016002350

3P 22.9kV-6.6/3.3kV Ratings

Phase: 3φ

 Frequency: 60㎐, 50㎐

 Primary voltage: 22.9㎸

 Secondary voltage: 6.6/3.3㎸

 TAP Voltage: 23.9 - R22.9 - 21.9 - 20.9 - 19.9㎸

 Vector: Dd0

CAPACITY (kVA)Exciting Current Io(%)Voltage Req. ε (%)Efficiency(%) 100%Efficiency(%) 50%Dimension(mm)
WDH
 1002.01.598.8099.0012607801500
2002.01.598.8099.1012908001540
3002.01.598.9099.2014009001600
4001.81.498.9099.2514209501620
5001.81.498.9099.2514509701620
6001.81.498.9599.25145010501620
7501.71.399.0099.30145011001630
10001.71.399.1099.35165011501630
12501.61.299.1599.45185013001920
15001.61.299.2099.45190013501970
20001.51.199.2099.45205015002200
25001.41.099.3099.50225015502350
30001.31.099.3099.50235016002400

Additional High-Efficiency Oil Transformer Specifications

The following tables present additional specifications for the High-Efficiency Oil Transformer, covering different voltage and capacity ranges.

CAPACITY (kVA)Exciting Current Io(%)Voltage Req. ε (%)Efficiency(%) 100%Efficiency(%) 50%Dimension(mm)
WDH
 1005.52.097.8098.5011107501340
2005.52.097.9098.6011609001290
3005.01.998.1098.70131011001340
4004.51.998.3098.70143011201410
5004.01.898.3098.80148012501460
6004.01.898.5098.80170014501445
7504.01.798.5098.90171014501505
10004.01.798.5099.00182014501550
12503.51.598.6099.00179014501830
15003.51.598.6099.00190014501850
20003.51.498.7099.10203015001930
25002.51.498.7099.20210021002085
30002.51.498.8099.20220024002200
CAPACITY (kVA)Exciting Current Io(%)Voltage Req. ε (%)Efficiency(%) 100%Efficiency(%) 50%Dimension(mm)
WDH
 1005.52.097.7098.509906301125
2005.52.097.7098.6010808401180
3005.01.997.8098.70126010001260
4004.51.898.1098.80136011001290
5004.01.898.1098.80150012301380
6004.01.898.1098.80154012701380
7504.01.798.2098.90170013701480
10004.01.798.2099.00170013701580
12503.51.598.4099.10176013801680
15003.51.598.4099.10188014501680
20003.51.498.4099.10192015001850
25002.51.498.4099.20205024402160
30002.51.498.5099.20210025002250
CAPACITY (kVA)Exciting Current Io(%)Voltage Req. ε (%)Efficiency(%) 100%Efficiency(%) 50%Dimension(mm)
WDH
 1005.52.097.7098.509906301125
2005.52.097.7098.6010808401180
3005.01.997.8098.70126010001260
4004.51.898.1098.80136011001290
5004.01.898.1098.80150012301380
6004.01.898.1098.80154012701380
7504.01.798.2098.90170013701480
10004.01.798.2099.00170013701580
12503.51.598.4099.10176013801680
15003.51.598.4099.10188014501680
20003.51.498.4099.10192015001850
25002.51.498.4099.20205024402160
30002.51.498.5099.20210025002250

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