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Grounding transformers

Vacuum pressure Impregnation technology, Insulation class H
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  1. 15kva earth transformers.jpg
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Vacuum pressure Impregnation technology

Insulation class H

Reduced equipment damage

Improved reliability

Related product parameters

Main Specification
Power
15kva
Phase3
Frequency50HZ
Insulation classH
Vector group symbolZN
Winding materialCopper
Rated voltage415V
StandardIEC60076/ANSI


Factory Test

 Routine Test

 a) Measurement of winding resistance

 b) Measurement of voltage ratio and check of phase displacement

 c) Measurement of short-circuit impedance and load loss

 d) Measurement of no-load loss and current

 e) Separate-source AC withstand voltage test

 f) Induced AC withstand voltage test

 g) Partial discharge measurement


 Type Test

 a) Lightning impulse test

 b) Temperature-rise test


 Special Test

 a) Partial discharge measurement

 b) Measurement of sound level

 c) Short-circuit test

Applications

Grounding transformer is suitable for power transmission and distribution systems, hotels, restaurants, hospitals, shopping malls, bank buildings, stadiums, airports, stations especially heavy load centers and places with special fire protection requirements.

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Contact us

Varelen Electric Co., Ltd

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