The JDZXF14-12 is a 12kV indoor single-phase voltage transformer with four windings and grounded design. It adopts epoxy resin casting with a semi-enclosed structure, suitable for voltage measurement, electric energy metering, and protective relaying in power systems with a rated frequency of 50Hz or 60Hz and equipment voltage up to 12kV.
This transformer features three secondary windings for measurement, monitoring, and protection. Its windings are concentrically arranged, and the iron core is designed with low no-load current and minimal no-load losses. The product 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) |
| JDZXF14-12 | 11/√3 | 0.11/√3/0.11/3 | 0.2/6P(3P) | 60/150 | 800 | 12/28/75 |
| 0.5/6P(3P) | 120/150 | |||||
| 1/6P | 250/150 | |||||
| 0.11/√3/0.11/√3/0.11/3 | 0.2/0.2/6P(3P) | 30/30/150 | 400/400 | |||
| 0.2/0.5/6P(3P) | 30/50/150 | |||||
| 0.5/0.5/6P(3P) | 50/50/150 |
