Equipment for Japanese MarketOil-immersed Type Unearthed Voltage Transformer (VT)

Oil-immersed Type Unearthed Voltage Transformer (VT)

Instrument transformers, which transform high voltage into low and easy-to-handle voltage, are used mainly in connection with a supply meter.

Feature

  • The main insulation medium of these products is electrical insulation oil. (The Fire Service Act is applied.) We can fabricate these products in conformance with JIS C 1731, JIS C 1736, and JEC-1201 as well as some foreign standards.

10-70 kV unearthed voltage transformers

These products are used mainly for measuring high voltages.

Single-phase

Model Rated voltage(V) Accuracy class (Rated burden)
JEC-1201 JIS C-1731,
BS7625,
IEC60044-2,
IEC61869-3
IEEE/ANSI C57.13(60Hz)
VO1-11 11000 1P(50~500VA) 0.5(50~200VA)
1.0(500VA)
0.3(WXY)
0.6(Z)
1.2(ZZ)
VO1-22 22000
VO1-33 33000
VO1-66 66000
VO1-77 77000

Three-phase

Model Rated voltage (V) Accuracy class (Rated burden)
JEC-1201 JIS C-1731,
BS7625,
IEC60044-2,
IEC61869-3
IEEE/ANSI C57.13(60Hz)
VDO1-11 11000 1P(50~500VA) 0.5(50~200VA)
1.0(500VA)
0.3(WXY)
0.6(Z)
1.2(ZZ)
VDO1-22 22000
VDO1-33 33000
VDO1-66 66000
VDO1-77 77000

The standards other than IEEE/ANSI standards are based on the secondary voltage of 110 V and IEEE/ANSI standards are based on the secondary voltage of 120 V as standard.

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