Born, due to the installation Phase Protection Relay to prevent two scan. Main Circuit Breaker.By order Trip were the Under Voltage Relay which is in the Main Circuit Breaker.The case will cause Trip is as follows. electrical voltage, incomplete phase. pressure electricity showers (Under Voltage Relay can be adjusted 5-20% of normal pressure). electricity voltage exceeding the 15% of normal pressure (Over Voltage Relay can be adjusted 5-20% of normal pressure). pressure electricity from the electricity, respectively.
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