发布日期：2018-01-19 作者：贵阳开关柜 点击：
Basic functions and use conditions of small switchgear closet in Guiyang
In order to ensure that the small switch cabinet without the interference of external factors, manufacturers are usually equipped with corresponding locking device for it, but not any locking device are suitable for switch cabinets, you must also meet the requirements of a series of techniques, including the switch cabinet locking device function, the way of use.
Guiyang switchgear reminded to set the lock device since small switch cabinet, it should at least have five functions, in addition to prevent error, error closing circuit breaker can adopt prompt measures, the other four case should adopt mandatory locking, thereby reducing the adverse factors caused by interference on it.
At the same time, it is also necessary to ensure the use of the prescribed procedures to operate the locking device of the small switch cabinet, on the one hand, to ensure the safety of the staff while operating the switchgear, and also to ensure that the switchgear is not damaged. In general, mechanical locking is used as much as possible. This method is simple, reliable, and easy to operate and maintain.
If a small switchgear is mechanical lockout, mechanical program locks should conform to the relevant metal requirements, such as opening flexible, reliable, key inserting, pulling freely, and no card jam. During non program operation, switchgear shall not operate.
In addition to traditional mechanical lockout, small switchgear can also adopt electric locking technology, but the power supply of blocking elements should be separated from relay protection circuit. Besides, locking circuit and contact should meet the requirements of locking, wiring should be reasonable and so on.