Special Custom Build Solutions 1-phase up to 50kV.A

  • TSLtransformers design and manufacture single phase dry type transformers to your specific requirements rated from 1V.A through to 50kV.A at nominal frequency ranges up to 1000Hz. Design and manufacture is based upon the following basic criteria…


  • Open frame Class I (earthing required)

  • Enclosed class I (earthing required)

  • Enclosed class II (double insulated)

Power ratings (Core V.A)

  • “EI” shell type lamination, 1V.A ~ 3,000V.A

  • “LL” core type lamination, 500V.A ~ 3,000V.A

  • “Strip” core type lamination, 4,000V.A ~ 50,000V.A

  • “Toroid” Toroidal ring type lamination 15V.A ~ 1,000V.A

Voltage ratings (prim input & sec output)

  • Safety isolating 0 ~ 50vac (ASNZS61558.2.6)

  • Isolating 51vac ~ 1000vac (ASNZS61558.2.4)

  • Isolating 1001vac ~ 5000vac (IEC60076)

  • Auto non-isolating 0 ~ 1000vac (IEC61558.2.13)

Winding arrangements

  • Non-isolated (auto) common winding

  • Isolated Center divided (side by side) & Concentric (one above another)

  • Isolated Bifilar, Sandwich and Pancake (interwound) windings

Insulation arrangements

  • BIL insulation coordination to 8kv / 50µS, thermal classes B, F & H (120~220ºC)

  • BIL insulation coordination to 10~25kv / 50µS, thermal classes F & H (155~220ºC)

  • BIL insulation coordination to 30kv / 50µS, thermal classes F & H (155~220ºC)