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When a capacitor is put in, it will generate an inrush current that is more than 5 times greater, and unless a larger reactor is added, the inrush current may cause a quick-break protection operation. If it is a trip caused by the inrush current (the input is tripped instantly), the inrush current will be greater if the reactor is removed, so it is not recommended to remove the reactor, and the setting time limit of the superior circuit breaker can only be appropriately adjusted in this situation; If the capacitor trips after a few seconds of input, it should be considered that it is caused by harmonic resonance, and the reactor can be removed.
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The possible problems are: 1. The capacitance does not match the circuit compensation; 2. Large leakage or loss. It is recommended to replace or find someone to repair it.
High Voltage Capacitor Compensation Cabinet:
WBB series high-voltage parallel reactive power compensation device is a capacitive reactive power compensation device used to improve power factor, adjust voltage and reduce grid loss in 6kV and 10kV power systems. At the same time, it is also widely used in metallurgy, mining, building materials, petrochemical, water supply and drainage and other industries of high-power high-voltage motor equipment, and the motor runs in parallel to improve the power factor, reduce line loss, save energy, stabilize voltage, and improve the quality of the power grid.
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First turn off the quick break, put the overload protection on, or combine it a few times to fully charge the capacitor, but your reactor must not be cut off to see that the capacitor will overcurrent and heat**.
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The capacitor cabinet must be switched step by step, and you can manually switch in a single step to find out which problem it is. If you can't take the smallest step, there is basically a problem with the wiring of the capacitor cabinet.
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There are several reasons for tripping and discharging in the electrical cabinet, generally there are several situations, one is the equipment, there may be a short circuit, and the other is that there is a problem with the line of the equipment, and there is a series of situations such as lack of phase caused by improper use. At this time, you have to sit down and check, the first one is to check if there is a problem with the equipment, and the second one you have to use the shake meter to check whether the wiring is normal? Thirdly, you have to check if the wires inside feel burned?
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I guess it's not the low voltage. Pet stores. No. There may be times when a cliff jump discharges. It could be this reason.
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Hello, it is a pleasure to serve you and give you the following answers:1Reason:
The overvoltage fault reported by the high-voltage capacitor feeder cabinet is caused by the load change of the capacitor bank and its configuration and the change of the moisture resistance of the line. 2.Workaround:
There are many ways to solve the overvoltage fault reported by the high-voltage capacitor feeder cabinet, such as: (1) check the insulation status of the capacitor bank and replace the damaged insulating sheet; (2) Adjust the configuration of the capacitor bank to adapt to the load change; (3) Check whether the line is wet, and if so, measures should be taken to prevent the line from being wet; (4) check and adjust the capacity of the capacitor to adapt to the change of load; (5) Replace the damaged relay; (6) Check whether the impedance of the capacitor bank is normal, if not, measures should be taken to adjust. 3.
In order to solve this kind of problem, we first need to carefully analyze the cause of the failure, and then take effective measures to control the insulation, configuration, moisture resistance and other aspects of the capacitor bank, so as to ensure the normal operation of the high-voltage capacitor feeder cabinet.
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Hello, I am glad to serve you and give you the following answers: The solutions and practices for the overvoltage fault reported by the high-voltage capacitor feeder cabinet are as follows:1
First, check the control circuit of the capacitor feeder cabinet to confirm whether there is an overvoltage fault; 2.If there is an overvoltage empty wax fault, check the control circuit of the capacitor feeder cabinet to confirm whether there is a control circuit fault; 3.If the control circuit is faulty, check the control circuit of the capacitor feeder cabinet to confirm whether there is a fault in the control circuit; 4.
If there is a fault in the control bucket dust slide, check the control circuit of the capacitor feeder cabinet to confirm whether there is a fault in the control circuit; 5.If the control circuit is faulty, check the control circuit of the capacitor feeder cabinet to confirm whether there is a fault in the control circuit; 6.If the control circuit is faulty, check the control circuit of the capacitor feeder cabinet to confirm whether there is a fault in the control circuit; 7.
If the control circuit is faulty, check the control circuit of the capacitor feeder cabinet to confirm whether there is a fault in the control circuit; 8.If the control circuit is faulty, check the control circuit of the capacitor feeder cabinet to confirm whether there is a fault in the control circuit; 9.If the control circuit is faulty, check the control circuit of the capacitor feeder cabinet to confirm whether there is a fault in the control circuit; 10.
Finally, according to the inspection results, corresponding measures are taken, such as replacing the control circuit, replacing the capacitor feeder cabinet, etc., to solve the overvoltage fault. Personal tip: When dealing with high-voltage capacitor feeders.
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1. The fault current is greater than the action value of the substation, the fault current is greater than the action value of the controller, the action time limit of the substation is less than the action time limit of the controller, the outgoing circuit breaker of the substation trips first, and the demarcation circuit breaker trips after the power loss. Hu Huaiheng.
2. The fault current is greater than the action value of the controller, the action time limit of the substation is greater than the action time limit of the controller, the demarcation circuit breaker trips, and the outlet circuit breaker of the substation does not operate.
3. The action value of the substation is greater than the action value of the controller, the fault current is greater than the action value of the controller, the action time limit of the substation is greater than the action time limit of the controller, the demarcation circuit breaker trips, and the outgoing circuit breaker of the substation does not operate.