The JDZ-17.5 and JDZ-24 are 24kV indoor single-phase voltage transformers featuring epoxy resin casting and fully enclosed construction. Designed for indoor use, they measure voltage, electric energy, and provide protective relaying in electrical systems operating at frequencies of 50Hz or 60Hz, with the highest equipment voltage rating of 17.5kV (up to 24kV).
These transformers offer high reliability, a low magnetism core for enhanced accuracy, and a large creepage distance that ensures excellent external insulation. They are maintenance-free and comply with IEC 60044-2 and IEC 61869-1 & 3 standards, guaranteeing safe and stable performance in indoor electrical installations.
| Type | Rated primary voltage (kV) |
Rated secondary voltage (kV) |
Accuracy classes combination | Rated output (VA) |
Thermal limiting current (VA) |
Rated insulation level (kV) |
| JDZ-17.5 | 13.8 15 |
0.1 0.11 |
0.2 | 25 | 600 | 17.5/38/95 |
| 0.5 | 50 | |||||
| 1 | 150 | |||||
| 0.11/0.11 | 0.2/0.2 | 15/15 | 300 | |||
| JDZ-24 | 20 22 |
0.2/0.5 | 15/30 | 24/50/125 | ||
| 0.11/0.22 | 0.2/6P(3P) | 15/600 | 600 | |||
| 0.5/6P(3P) | 25/600 |
