The JDZXR-12C is a 12kV indoor single-phase voltage transformer featuring epoxy resin casting with a fully enclosed construction. It is designed for use inside switch cabinets to measure voltage, electric energy, and provide protective relaying in single-phase or three-phase AC circuits operating at frequencies of 50Hz or 60Hz, with the highest equipment voltage rating of 12kV.
The transformer uses an advanced cold-rolled silicon steel core to enhance magnetic performance and accuracy. The high-voltage primary winding lead is routed from the top of the product, while the secondary winding lead exits from the transverse side, allowing for convenient wiring and installation. It complies with IEC 60044-2 and IEC 61869-1 & 3 standards, and supports 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) |
| JDZXR-12C | 11/√3 | 0.11/√3 | 0.2 | 15 | 400 | 12/28/75 |
| 0.5 | 30 | |||||
| 1 | 80 | |||||
| 0.11/√3/0.11/3 | 0.2/6P | 15/50 | 300 | |||
| 0.5/6P | 30/50 |
