Common faults and solutions of distribution cabinets in substations.
In our substation system, there are often some fault problems. Today, Topband auto Equipment will briefly introduce these faults and their corresponding solutions.
1. The circuit breaker cannot be closed: the closing button has poor contact. The solution is to replace it with a new closing button.
2. The melting core of the control circuit is burnt out: The solution is to first check if the control circuit is normal and there is no short circuit phenomenon. If there is no problem, replace it with a new melting core in a timely manner.
3. Circuit breaker not storing energy: The solution is to check the voltage of the motor control power supply and ensure that the power supply voltage is greater than or equal to
4. The closing electromagnet has been burnt out. The solution is to replace it with a new one in a timely manner.
5. The main switch of the incoming cabinet cannot be opened: The main switch of the incoming cabinet cannot be opened may be due to a burnt out opening coil. The solution is to replace the opening coil.
6. The power factor of capacitor compensation is too high or ahead of schedule. The solution is to adjust the capacitor compensation to
7. The phase sequence of the transformer incoming line is incorrect. The solution is to readjust the phase sequence.
8. The current sampling signal line is not connected. Solution: Connect the current sampling signal line.
9. The voltage is too high, and the controller displays overvoltage. The solution is to adjust the overvoltage protection point.
10. The current is too low, and the controller displays ahead. The solution is that it can automatically work normally when the current increases.
11. The capacity of the capacitor decreases, the solution is to replace the capacitor.
12. The original design load increased, the solution is to increase the compensation capacity of the capacitor cabinet
