• 220kV three phase on load voltage regulator HV power transformer

220kV three phase on load voltage regulator HV power transformer

We have adopted series of important reforms on the 220kV level there-phase oil-immersed on-load tap-changing transformer referring material,process and structure.The transformer has the features of small size,light weight,high efficiency,low loss,low noise,reliable operation etc.which can reduce a large amount of power network loss and operation expenses with significant economic benefits.

Product Details

Quick Details

Description

Features:

1. Iron core is made of cold-rolled silicon-steel sheet with high conduction of magnetism and adopts pulling-plank structure,
so that its magnetic route is short, losses and noise level is low;
2. Compress wire is adopted for winding so losses are low and have good ability withstand short-circuit;
3. Its active part adopts special pressing method which could ensure reliable axial pressure;
4. The oil tank is bell type with the structure of full folding plate type, having an excellent exterior and easy for maintenance;
5. Adopting capsule-type oil container, it can reduce oil aging to the lowest degree.
6. Amount of local discharged: The apparent discharge amount is less than 80pC under the 1.5 times of rated voltage;
7. Noise: Products of 63MVA and below is lower than 58dB(AN);
8. Power loss: no-load loss is 30% lower than that of IEC standard;
9. Reliability: All in-service product have no damages or oil leakage occurred;

environment condition
Device type:outdoor
Environment:Maximum temperature +40℃,minimum temperature -30℃
Altitude:≤1000 meters(>1000 meters,need to modify temperature rise)
Relative temperature:≤90%(25℃)
Installation area with no corrosive gas and obvious fouling etc.


Main Technical Parameters:

Rated power
(kVA)


High Voltage
(kV)


H.V Tap range


Low Voltage
(kV)


Connection Symbol


Short-Circuit Impedance
(%)


No-load Loss
(kW)


On-Load Loss
(kW)


No-load Current
(%)

9 Type

10 Type

11 Type

9 Type

10 Type

11 Type

31500

220
242

±8×1.25%
±8×1.5%

6.3,6.6,
10.5,11,
20,34.5,
35,37,
38.5,66,
69

YNd11

12~14

38

34

30

135

128

128

0.7

40000

45

41

36

157

149

149

0.63

50000

54

49

43

189

180

180

0.56

63000

63

57

50

220

209

209

0.56

90000

80

72

64

288

274

274

0.49

120000

99

89

79

346

329

329

0.49

150000

116

104

93

405

385

385

0.42

180000

135

122

108

468

445

445

0.42

 

 

 

220kV three phase on load voltage regulator HV power transformer

 

220kV three phase on load voltage regulator HV power transformer

Company Profile

Founded in 2006, with a registered capital of 10 million USD, Zhejiang Farady Electric enjoys about 10 years experience in distribution transformer manufacture.

Farady is located in Liushi of Yueqing, a costal city, which is often referred as the Electric Products Capital in China. Boardered by the State road, highway, and high-speed railway, close to SHANGHAI/NINGBO/WENZHOU sea ports, and the Yongqiang International airport in Wenzhou, we enjoy a great advantage in transportation which thus can guarantee our clients the fast shipping.

Our main products include: step voltage regulator up to 35kV, conventional and complete self-protection transformer, single phase pad mounted transformer, withstand high overload transformer, capacity-adjustable transformer, amorphous transformer, energy-saving transformer, etc green transformer. All the products of ours have passed the national laboratory type test, which also wins the STATE GRID of China as one of our contractors.

The company is equipped with the state-of-the-art technology, sophisticated facilities, ISO9001 quality management system certification and ISO14001 environment certification approval.
We also enjoy the Certification of New Hi-tech Enterprises, National Spark Program, and own more than 70 item transformer patents, with which our products are not only popular in the domestic market but also exported to Southeast Asia, South America, Africa and the middle east.

Today, boasting the value of products specialization, brand management, and business globalization, with the sprits of pragmatism, innovation, efficiency, and responsibility, Farady Company is dedicated to become the biggest name in the international business of transformers in China, and contributes its share to the transformation from the Made in China into the Invented in China.

 

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