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Circuit Breaker Make Sure The Power Supply Is Working Properly
May 27, 2017

The circuit Circuit Breaker is mainly used as the protection switch of the power supply line, the control switch of the motor and the lighting system, and can also be used for some important links of the power transmission and distribution system. When the line occurs short circuit, overload, undervoltage and other failure to cut off the fault circuit.

The contactor is used in the machine for frequent interruption and breaking of the high current circuit. It has the characteristics of quick operation, convenient operation and easy remote control. However, it is not short circuit protection and overload protection. Relay with the use.

Contactor wiring methods are many, with the same place, the wiring method is not the same, here refers to the contactor of a single connection and a number of contactor connection, the most common is the use of circuit Circuit Breakers, buttons Switches, thermal relays, delay relays, digital relays and other low-voltage control components product portfolio. In fact, no matter what your contactor function and working principle are the same, nothing more than the shape is not the same.

The device has a relatively important role in the whole power system, its role is to achieve the equipment control and protection functions, mainly in its control loop and protection, automatic devices and so on.

1. Circuit Circuit Breaker auxiliary contact conversion anomaly

In the operation of the circuit Circuit Breaker closing, if the green light flashing light is not lit or the traffic lights are off, then the circuit Circuit Breaker auxiliary contact conversion abnormalities, or in the operation of the opening, there is a red light, green light is not bright or traffic lights Are extinguished when also shows the phenomenon of abnormal.

2. Circuit Circuit Breaker auxiliary contact conversion exception handling

When the circuit Circuit Breaker auxiliary contact conversion anomalies, the first thing to do is to report timely scheduling, view the background monitoring system signal, focusing on the situation of circuit Circuit Breaker displacement, current, active is normal, if necessary, with the dispatch monitoring center , And then to the scene to check the secondary circuit of the circuit Circuit Breaker and the mechanism, in the troubleshooting does belong to the circuit Circuit Breaker auxiliary node problem, in order to avoid the switch of the normal division, must take the necessary measures. And timely report to the maintenance team, to be handled after the power outage.

3. Circuit Circuit Breaker exception handling precautions

On the circuit Circuit Breaker running, issued a control loop disconnection signal, causing this phenomenon for many reasons, must be based on the background machine-related information and on-site inspection equipment to analyze the situation, the power circuit is normal, the protection of the secondary circuit Normal, switch the storage capacity is normal, switch SF6 gas pressure and other abnormalities. After the operation of the identified problems to take the necessary control measures, notify the relevant maintenance personnel to further investigation and handling, trying to equipment failure on the other equipment to minimize the impact of the grid.