The JDZ10-12RJC, JDZ10-12RVJC, and ZJ10-12RJC are 12kV indoor single-phase voltage transformers featuring epoxy resin casting with half insulation and a fully enclosed design. These transformers are intended for indoor applications to measure voltage, electric energy, and provide protective relaying in electrical systems operating at 50Hz or 60Hz, with equipment rated up to 7.2/12kV.
They are specifically suitable for three-phase V connection configurations. The products offer high reliability, excellent insulation, and comply with IEC 60044-2 technical 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 current (VA) |
Rated insulation level (kV) |
| JDZ10-12R(V)JC | 11 | 0.11 | 0.2 | 25 | 400 | 12/28/75 |
| 0.5 | 50 | |||||
| 1 | 80 | |||||
| 0.11/0.11 | 0.2/0.2 | 10/10 | 200/200 | |||
| 0.5/0.5 | 15/30 | |||||
| 0.11/0.22 | 0.2/6P | 15/500 | 500 | |||
| 0.5/6P | 30/500 |
