Tuyệt chiêu chống mất pha sử dụng Shunt trip và CB _ kênh chế tác

#anti-phase loss #kenhchetac #vuductoan The use of CB + phase loss warning relay + CB to prevent phase loss will help save and be effective. Because if the load is large, the cost for the contactor will be very large. If you combine it with a timer, it will be more perfect. When there is a power outage and the power is restored, the CB will not trip.