The JDZ8-12R is a 12kV indoor single-phase voltage transformer designed with epoxy resin casting and fully enclosed construction. It is used for voltage measurement, energy metering, and protective relaying in single-phase or three-phase AC circuits with a rated frequency of 50Hz or 60Hz and equipment voltages up to 7.2/12kV.
This transformer features high reliability and a low-magnetism core to ensure precise measurement. Its large creepage distance enhances external insulation and pollution resistance. The unit is maintenance-free and complies with IEC 60044-2 and IEC 61869-1 & 3 standards, supporting a load power factor of cosΦ = 0.8 (lagging).
| Type | Rated primary voltage (kV) |
Rated secondary voltage (kV) |
Accuracy classes combination | Rated output (VA) |
Thermal limiting Output (VA) |
Rated insulation level (kV) |
| JDZ8-12R | 11 | 0.11 | 0.2 | 25 | 500 | 12/28/75 |
| 0.5 | 50 | |||||
| 1 | 100 | |||||
| 0.11/0.11 | 0.2/0.2 | 15/15 | 250/250 | |||
| 0.2/0.5 | 15/30 | |||||
| 0.5/0.5 | 25/25 | |||||
| 0.1/0.22 | 0.2/6P(3P) | 15/500 | 500 | |||
| 0.5/6P(3P) | 30/500 |
