Single Phase Dry Type Transformer

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35KV - 38.5KV 800KVA - 20MVA Dry Type Transformer , Three / Single Phase


Quick Detail:


1.Low loss, low noise

2.Low partial discharge

3.High quality & reliability, efficiency

4.Good security

5.Environmental protection

6.Small size, light weight and attractive design

7.dry type





35kv off circuit series of non-encapsulated dry-type transformer is a new product with environmental protection, energy saving and security concepts. NOMEX insulation material which is made by U.S. Du Pont is used. Anaerobic, high-conductivity copper electromagnetic is  used in high-voltage winding and low- voltage winding. Well-designed continuous, foil-type structure and vacuum pressure treatment process Impregnation (VPI) make partial discharge to small. And without any cracking or reduction in the level of insulation phenomenon in the entire period. Overall vacuum impregnation, high temperature curing treatment, supported by using high-strength ceramics, and have a good capacity of sudden short-circuit current. The maximum allowable operating temperature of H-class heat-resistant coil insulation levels is 180, and the main insulating material is C-level (heat-resistant up to 220) of NOMEX paper. And there have more design margin. Products can be installed in the dirty environment and fire safety requirements, larger load area.

Main Features are as following: 

High reliability 

Good security

Good environmental protection

Small size, light weight, attractive design.





Technical parameters of off-circuit tap changing power transformer of class 35kV


This parameter list only represents individual parameter of this product


Rated Voltage

35KV - 38.5KV

Rated Capacity

800KVA,1000KVA, 1250KVA, 1600KVA, 2000KVA, 2500KVA, 3150KVA, 4000KVA, 5000KVA, 6300KVA, 8000KVA, 10000KVA, 12500KVA, 16000KVA, 20000KVA

Cooling Type


Winding Type

Double winding / Three winding / Toroidal


Three Phase / Single Phase


Core Type / Shell Type 

Winding Material



50HZ / 60HZ


Rated capacity (kVA)

Voltage combination and Tap range

Vector Group Symbol

SC (ZB) 9

SC (ZB) 10

No-load current

Impedance Voltage

H.V. (kV)

HV Tap Range




No-load loss


Load loss


No-load loss


Load loss


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Mr. Francine
Tel: 86-312-58165372
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Baoding Tianwei Group (Jiangsu) Wuzhou Transformer Co., LTD,
No.12 Xinjing West Road, Zhangjiagang Economic Development Zone, Baoding, Hebei, China (Mainland)
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