The JDZX18-12RJC is a 12kV indoor single-phase epoxy resin voltage transformer featuring fully enclosed epoxy resin casting construction. It is designed for use in indoor switch cabinets to measure voltage, electric energy, and provide protective relaying in single-phase or three-phase AC circuits operating at 50Hz or 60Hz, with the highest equipment voltage of 12kV.
The transformer core uses advanced cold-rolled silicon steel sheets to improve magnetic performance. The high-voltage primary winding lead is routed from the top of the product, while the secondary winding lead exits from the transverse side, facilitating convenient wiring and installation. The product 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 current (VA) |
Rated insulation level (kV) |
| JDZX18-12RJC | 11/√3 | 0.11/√3 | 0.2 | 15 | 400 | 12/28/75 |
| 0.5 | 30 | |||||
| 1 | 50 | |||||
| 0.11/√3/0.11/3 | 0.2/6P | 15/50 | 300 | |||
| 0.5/6P | 30/50 |
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