Ac monitoring unit（KJ-A）

Ac monitoring unit (kj-a)

The ac monitoring unit adopts 8-bit single-chip microcomputer, which is responsible for measuring the voltage of two-way three-phase ac phase, and automatically switching the two-way ac contactor according to the ac voltage.Ac monitoring unit communicates with the monitoring module of the system through RS485 communication bus.Its main functions are as follows:

◎ measure two-way three-phase ac voltage

◎ automatic switching of two-way ac contactor according to the state of ac voltage

Measure the operating current of a phase

◎ measure the working state of two-way contactor, lightning protection state and 5-way ac air open state

◎ data exchange is completed by RS485 communication bus and system monitoring module