The LMK1-0.66 series is an indoor‑type current transformer designed for 0.66 kV and lower line voltages, suitable for measurement instruments, relays, and control devices. It complies with GB1208‑2006 and features a compact, lightweight, fully enclosed design with anti‑theft protection.
The manual covers the transformer’s structure, working principle, technical parameters, dimensions, installation methods (vertical or horizontal), usage instructions, transportation and storage guidelines, warranty terms, and ordering information. This manual is written in Chinese.
| Rated voltage | 0.66 kV |
|---|---|
| Rated frequency | 50/60 Hz |
| Rated primary current | 10 A‑75 A (and multiples) |
| Rated secondary current | 1 A or 5 A |
| Secondary burden power factor | 0.8 lag |
| Rated output (VA) | 2.5 VA‑20 VA |
| Accuracy class | 1.0, 0.5, 0.5S, 0.2 |
| Insulation resistance | ≥5 MΩ |
| Power‑frequency withstand voltage | 3 kV RMS |
The rated voltage is 0.66 kV.
Operating temperature is –5 °C to 40 °C, humidity up to 80 %, altitude up to 1000 m, and installation must be indoor without metal dust or severe vibration.