This manual covers the installation, operation, and maintenance of the Xuji Kece DPV-31A busbar insulation monitoring device for power systems.
The DPV-31A series is a microcomputer-based voltage transformer supervision device designed for single-mother segment wiring. It features overvoltage and low-voltage alarms, ground fault protection, PT parallel operation, and switching capabilities. The device utilizes a 32-bit ARM CPU with DSP kernel and offers high stability through industrial-grade integrated circuits. This manual is written in Chinese.
| Working Power Supply (DC) | 220V or 110V ±20% |
|---|---|
| Rated Frequency | 50Hz |
| Protection Calculation Cycle | 5ms |
| Action Time (Fastest) | 30ms |
| Accuracy Range (Voltage) | 0.1 Un~1.2 Un |
The device has a fastest action time of 30ms.
It supports IEC-60870-103 and Modbus-RTU protocols automatically.