The JDZ9-12A and JDZ9-12 are 12kV indoor single-phase voltage transformers featuring epoxy resin casting and double-pole insulated design. These transformers are intended for use inside switchgear cabinets to measure voltage, electric energy, and provide protective relaying in single-phase or three-phase AC circuits operating at 50Hz or 60Hz.
With a core designed for low magnetism, these transformers offer high reliability and stable performance while requiring minimal maintenance. They support a load power factor of cosΦ=0.8 (lagging) and conform to IEC 60044-2 and IEC 61869-1 & 3 standards, suitable for equipment with voltages up to 12kV in indoor environments.
| Type | Rated primary voltage (kV) |
Rated secondary voltage (kV) |
Accuracy classes combination | Rated output (VA) |
Thermal limiting current (VA) |
Rated insulation level (kV) |
| JDZ9-12A JDZ9-12B |
10 11 |
0.1 0.11 |
0.2 | 50 | 600 | 12/28/75 |
| 0.5 | 100 | |||||
| 1 | 150 | |||||
| 0.1/0.1 0.11/0.11 |
0.2/0.2 | 25/25 | 300/300 | |||
| 0.2/0.5 | 25/50 | |||||
| 0.1/0.22 0.11/0.22 |
0.2/6P(3P) | 25/1000 | 5000 | |||
| 0.5/6P(3P) | 50/1000 |
