The JDZ11-12A is a 12kV indoor single-phase voltage transformer featuring epoxy resin casting and a fully enclosed construction. It is designed for indoor use to measure voltage, electric energy, and provide protective relaying in electrical systems operating at 50Hz or 60Hz, suitable for equipment rated up to 12kV.
This transformer offers high reliability with a low magnetism core and a large creepage distance on its external insulation, which enhances resistance to pollution. It is maintenance-free and supports a load power factor of cosΦ=0.8 (lagging). The product complies with IEC 60044-2 technical standards.
| Type | Rated primary voltage (kV) |
Rated secondary voltage (kV) |
Accuracy classes combination | Rated output (VA) |
Thermal limiting current (VA) |
Rated insulation level (kV) |
| JDZ11-12A | 11 | 0.11 | 0.2 | 25 | 600 | 12/28/75 |
| 0.5 | 50 | |||||
| 1 | 150 | |||||
| 0.11/0.11 | 0.2/0.2 | 15/15 | 300/300 | |||
| 0.2/0.5 | 15/30 | |||||
| 0.11/0.22 | 0.2/6P(3P) | 25/800 | 600 | |||
| 0.5/6P(3P) | 50/800 |
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