1. Mechanical equipment interlocking equipment is also a kind of protection equipment, which is mainly used in places where two low-voltage circuit breakers in a double circuit cannot be plugged in at the same time. When the A low-voltage circuit breaker and the B low-voltage circuit breaker complete the mechanical equipment interlocking, if the B low-voltage circuit breaker must supply power when the A low-voltage circuit breaker is closed, the A low-voltage circuit breaker needs to be disconnected first, and then the B low-voltage circuit breaker is turned off. . In this way, the problem of wrong-phase short-circuit failure due to misuse of the double circuit is prevented.
Mechanical equipment interlocking can also be divided into rope interlocking and lever interlocking.
With the development trend of intelligent process, more and more institutions must have emergency backup power for machinery and equipment. The need for emergency backup power is also increasing. Therefore, in addition to the essential mechanical equipment franchise stores, more and more products (especially dual power switches) also have the function of electrical franchise stores.
2. Electrical interlock means that in the main inlet line and the reserved inlet line, only one switch power supply is turned off for the two inlet lines, and the other is reserved. The goal is to guarantee the reliability of the power supply route. When one power supply circuit fails, the other power supply circuit can be put into use immediately to reduce the problem of longer power outage due to circuit failure. Two-in-one electrical interlocking equipment can complete automatic laser cutting and repair of switching power supplies. Generally speaking, if the A low-voltage circuit breaker is a common switching power supply low-voltage circuit breaker, the B low-voltage circuit breaker is a backup power low-voltage circuit breaker. When the A low-voltage circuit breaker is closed due to common faults, the B low-voltage circuit breaker is automatically closed without manual operation to ensure normal load power supply. Electrical interlocking equipment is used in some major venues where power is not allowed to be turned off.
Post time: Apr-29-2022