Varelen Electric Co., Ltd

Cast Resin Transformer

Non-flammable and self-extinguishing

Insulated with an epoxy resin - environmentally friendly

Maintenance free, more reliable



Cast Resin Transformer
cast resin transformers
epoxy cast resin transformer
cast resin winding
cast resin dry transformer

Related product parameters

Main Specification
Transformer Type cast resin
Rated capacity up to 25mva
Rated voltage up to 36kv
Frequency 50/60Hz
Phase 3 Phase
Winding material Copper /Aluminum
Insulation class F, H, C
Vector group YNd1d1, Dyn11, Dyn5
Cooling AN
Protection Enclosure IP00 to IP54
Temperature Class E2 C2 F1



Tap changer

Temperature monitoring

Antivibration pads



industrial, commercial and catering facilities, solar, public buildings and other indoor applications.



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 specialized tests to meet all customer requirements. We make what matters work for our customers in a safe and reliable way.


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

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