Equipment for Japanese MarketOil-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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