Judgment and Prevention of Busbar Unit's Zero Line Breaking Fault
In the single-phase power supply range of the bus machine, the zero line is disconnected, the lights within the fault range are not on, and other electrical appliances cannot be used. , the phase line and the neutral line both display the phase voltage; but there is no voltage indication when measured with a voltmeter. According to the above situation, it can be determined that the neutral line is open in the single-phase power supply range.