Varelen Electric Co., Ltd

Transformer winding

Windings have high mechanical strength and no partial discharge and are non-flammable

The  windings are  manufactured with aluminium or copper conductors

 

Transformer winding
transformer winding
transformer coil
Low voltage winding
winding coils

Related product parameters

Main Specification
Transformer Type cast resin
Rated capacity up to 20mva
Rated voltage up to 36kv
Frequency 50/60Hz
Phase 3 Phase
Winding material Copper /Aluminum
Insulation class F, H, C
Vector group Yyn0
Temperature Class E2 C2 F1
Temperature operation +40~ -60℃
Short circuit resistance 4-8%( on request)

winding drawing

FACTORY TEST

For each transformer are prepared and issued a test report, in accordance with IEC 60076. except for routine tests, we also offer type tests and specialised tests to meet all customer requirements. We make what matters work for our customers in a safe and reliable way.Testing

Routine test

  • Measurement of winding resistance
  • Measurement of voltage ratio and check of phase displacement
  • Measurement of short-circuit impedance and load loss
  • Measurement of no-load loss and current
  • Separate-source AC withstand voltage test
  • Induced AC withstand voltage test
  • Partial discharge measurement

Type test

  • Lightning impulse test
  • Temperature-rise test

Special test

  • Partial discharge measurement
  • Measurement of sound level
  • Short-circuit test

Follow Us