The JSZF-12G is a 12kV indoor three-phase voltage transformer featuring epoxy resin material casting and a fully enclosed construction. It is designed for measuring voltage, electric energy, and providing protective relaying in electrical systems operating at frequencies of 50Hz or 60Hz, with a maximum equipment voltage rating of 12kV.
This transformer is specialized for harmonic prevention, ensuring accurate measurement and protection in environments with electrical harmonics. It supports a load power factor of cosΦ=0.8 (lagging), is maintenance-free, and complies with IEC 60044-2 and IEC 61869-1 & 3 standards, making it reliable and safe for indoor installations.
| Type | Rated primary voltage (kV) |
Rated secondary voltage (kV) |
Accuracy classes combination | Rated output (VA) |
Thermal limiting current (VA) |
Rated insulation level (kV) |
|
| Three-phase | Zero sequence | ||||||
| JSZF-12G | 11/√3 | 0.11/√3 | 0.11 | 0.2/6P | 75/150 | 1000 | 12/28/75 |
| 0.5/6P | 150/150 | ||||||
| 1/6P | 300/150 | ||||||
| 0.11/√3 | 0.11 | 0.2/0.2/6P | 45/45/150 | 800 | |||
| 0.2/0.5/6P | 45/75/150 | ||||||
| 0.5/0.5/6P | 90/90/150 | ||||||
