Jiangsu Yawei Transformer Co., Ltd.

110kV Oil-immersed Three-phase Double-winding On-load Voltage Regulating Power Transformer

110kV Oil-immersed Three-phase Double-winding On-load Voltage Regulating Power Transformer

The 110kV oil-immersed three-phase double-winding on-load voltage regulating power transformer is designed for medium and high-voltage power systems, enabling continuous voltage adjustment without power interruption. It features a high-efficiency core, low-loss design, and advanced on-load tap changer for stable and precise voltage control. With excellent insulation performance, strong short-circuit resistance, and reliable thermal stability, it ensures safe and efficient operation. Widely used in substations, industrial grids, and power distribution networks, it supports long service life and low maintenance requirements.
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Description
Technical Parameters

Jiangsu Yawei Transformer Co.,Ltd. is one of the leading manufacturers and suppliers of 110kv oil-immersed three-phase double-winding on-load voltage regulating power transformer in China. Please feel free to buy high quality 110kv oil-immersed three-phase double-winding on-load voltage regulating power transformer from our factory. Customized orders are welcome.

 

yawei transformer

The 110kV oil-immersed three-phase double-winding on-load voltage regulating power transformer is engineered for medium and high-voltage transmission and distribution systems, providing reliable voltage conversion with continuous on-load regulation capability. It adopts a high-quality grain-oriented silicon steel core and advanced oil-immersed cooling system to ensure low losses, reduced noise, and improved energy efficiency. The integrated on-load tap changer enables real-time voltage adjustment without interrupting power supply, enhancing grid stability and operational flexibility. Its robust insulation structure offers excellent dielectric strength, strong short-circuit withstand capability, and high thermal performance under heavy load conditions. Designed for long-term, stable operation, the transformer ensures low partial discharge, high reliability, and minimal maintenance requirements. It is widely used in substations, industrial power networks, and urban distribution systems. Custom design options are available to meet different technical standards, environmental conditions, and utility requirements for modern power infrastructure.

 

 

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Specifications

 

(kVA)

Rated

capacity

Rated voltage and tapping range

Vector group

(%)

No load

current

(%)

Impedance

voltage

(kW)

No load

losses

(kW)

On load

losses

HV

(%) Tapping range

LV

6300

110

±4×1.25

±6×1.25

±8×1.25

6.3

6.6

10.5

21

YNd11

0.51

10.5

4.4

32

8000

0.51

5.3

38

10000

0.47

6.2

45

12500

0.47

7.4

53

16000

0.44

8.9

66

20000

0.44

10.6

79

25000

0.41

12.5

94

31500

0.41

14.9

111

40000

0.37

10.5~18

17.8

140

50000

0.37

21.0

175

63000

0.34

25.0

209