LDS-200 digital measurement and control device is an auxiliary device for measuring and controlling transformers and other equipment, with various measurement and control functions.
The LDS-200 is a digital measurement and control device for transformers and other equipment. It can acquire AC current, AC voltage, DC bus voltage, oil temperature, ambient temperature and provides 60 remote‑signal inputs and 14 remote‑control outputs for load‑tap changer, circuit breaker and other functions.
The manual includes a product overview, technical indicators, mechanical structure, hardware principle, operation instructions, installation and debugging steps, as well as running maintenance, storage conditions and configuration lists. Appendices contain state word definitions, control word tables, wiring diagrams and plug‑in schematics. This manual is written in Chinese.
| Rated DC voltage | 220V or 110V (as ordered) |
|---|---|
| Rated AC voltage | 100V or 380V (as ordered) |
| Rated AC current | 5A or 1A (as ordered) |
| Power consumption per DC module | ≤15 W |
| Power consumption per AC voltage circuit | ≤0.5 VA per phase |
| Measurement accuracy (current/voltage) | 0.2 grade |
| Insulation resistance | ≥100 MΩ |
| Operating temperature range | -10 °C to +55 °C |
| Physical dimensions | 260 × 179 × 216 mm (W×H×D) |
The unit provides 14 analog measurement inputs (including 2 temperature channels and 4 DC voltage channels).
The device can operate from –10 °C to +55 °C and be stored from –25 °C to +70 °C.