Isolation switch contacts, contacts overheat how to deal with? A: The discovery isolation switch contacts, the contacts overheating when first report scheduling, trying to reduce or shift load, strengthen surveillance, and then processed according to the different wiring: (1) double busbar. If a bus side switch overheated bus pass down the overheated isolation switch out of operation, maintenance outage. (2) single bus connection. Must reduce its load, strengthen surveillance, and to take measures to cool down the isolation switch, such as conditions permit Xiangfan disconnectors, as far as possible to stop using. (3) can be used with bypass bypass breaker breaker switching. (4) If the line side of the isolation switch overheating, its treatment with a single bus is basically the same approach should be arranged as soon as possible maintenance outage. During maintain operation, should reduce the load and strengthen surveillance. (5) a half breaker can be open-loop operation. (6) on the bus side isolation switch overheated contacts, contacts, after isolating switch opened, the on-site inspection, meet live working safe distance, can bring out the bus side deflectors joint electrolysis and then processed. Isolation switch refused points, closing what should I do? A: (1) due to the axle pin off, wedge bolt exit, cast iron fracture mechanical failure, or because of an electrical circuit fault may occur Arbor touch with the operating mechanism, causing the isolation switch refusal closing, then use insulated rod operation or, in the case of personal safety, use a wrench to rotate the shaft of each phase isolation switch. (2) refusing to trip. When the isolation switch will not pull out when the actuator is the case of the ice to freeze Huzhou isolating switch, you can gently shake Yichang isolation switch, and observe the various parts of the support insulator and institutions in order according to where the deformation and displacement, find obstacle locations. If the obstacle location occurs in the contact portion isolating switch should not be forcibly opened, otherwise the support insulator may be affected by damage caused by a serious accident, then the only way to change the operation of the equipment to be addressed. Taian isolation switch, isolation switch, the power provided by the Xi'an Huayi Huayi power plant. Xian Huayi power plant (www.xahy.com) strong, credible, in Xi'an high-voltage circuit breakers and other industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Huayi power and you hand into the brilliant, for a better future!