μMPS4000 series integrated automation system for substations is a new generation of substation integrated protection device facing the 21st century, consisting of μMPS4100 series line protection devices, μMPS4200 series main equipment protection devices and μMPS4300 series measurement and control devices.
The μMPS4000 series is a next‑generation substation automation system composed of multiple protection and measurement devices, including the μMPS4310B remote measurement and control unit and the μMPS4320B remote signalling unit. It supports line monitoring and remote control for voltages from 6 kV to 110 kV and breaker signalling and control.
The manual describes the system’s main functions (8 remote‑control channels, 16 remote‑signal channels, up to 4 remote‑measurement channels), technical requirements, hardware architecture, panel operation, measurement parameters, calibration procedures, and record‑keeping features such as operation logs and SOE records. Communication interfaces include RS‑232 and CAN, and the device offers configurable measurement and system parameters via the front‑panel menu. This manual is written in Chinese.
| Rated AC phase voltage | 57.7 V |
|---|---|
| Rated AC current | 5 A |
| Frequency | 50 Hz |
| Power consumption | ≤ 10 W |
| Voltage measurement accuracy | ±0.2 % |
| Current measurement accuracy | ±0.2 % |
| Frequency measurement accuracy | ±0.02 Hz |
| Power factor measurement accuracy | ±0.5 % |
| Operating temperature range | -50 °C to +40 °C |
| Extreme temperature range | -100 °C to +50 °C |
The device can use either RS‑232 or CAN communication interfaces.
It provides 8 remote‑control channels, allowing control of up to 4 breaker units.
The device consumes no more than 10 W of power.