The JSZW12A-10R is a 12kV indoor three-phase voltage transformer featuring epoxy resin casting with a fully enclosed construction. Designed for use in single-phase or three-phase AC circuits, it is suitable for measuring voltage, electric energy, and protective relaying at rated frequencies of 50Hz or 60Hz. Its design ensures high reliability, low core magnetism, and a large creepage distance for external insulation, contributing to stable and safe operation in indoor electrical systems.
This voltage transformer is maintenance-free and includes a primary cone that complies with the IEEE 386-2007 Figure 7 standard, ensuring compatibility with industry-standard connections. Its robust construction and reliable performance make it ideal for various indoor medium-voltage applications requiring accurate voltage measurement and protective functions.
| Type | Rated primary voltage (kV) |
Rated secondary voltage (kV) |
Accuracy classes combination | Rated output (VA) |
Thermal limiting current (VA) |
Rated insulation level (kV) |
| JSZW12A-3R JSZW12A-6R JSZW12A-10R |
3/√3 6/√3 10/√3 |
0.1/√3/0.1/3 |
0.2/6P | 60/100 | 1200 | 3.6/25/40 7.2/32/60 12/42/75 |
| 0.5/6P | 150/100 | |||||
| 1/6P | 300/100 | |||||
| 0.1/√3/0.1/√3/0.1/3 | 0.2/0.2/6P | 30/30/100 | 900/900 | |||
| 0.2/0.5/6P | 30/45/100 | |||||
| 0.5/0.5/6P | 90/90/100 |
Note:
1.Rated output and limit output bleong to three-phase total output.
2.Upon request we are glad to offer transformers according to other technical specs.
