Wu Jinghua, correspondent of China Power News Network, reported on September 20 that the staff of Liangshan County Power Supply Company of Shandong Province installed a vacuum circuit breaker for the new 200 kVA transformer of Renheju Food Co., Ltd. on the 1st pole of the 10KV Huayu Line Liuhejiu Branch. It can ensure that the equipment can be cut off in time when the equipment is overloaded or short-circuited.