High voltage reactors help enterprises better maintain the stable operation of power systems in current control and reactive power regulation. However, many companies sometimes experience a tripping phenomenon when starting the reactor, which affects the operation status of the system. Below, we will popularize the reasons for the instantaneous tripping of high-voltage reactors during startup and share solutions.
The reason for the tripping of high-voltage reactors at the moment of startup:
1. Overcurrent protection action:
When the reactor is started, the charging process of the capacitor will cause instantaneous high current. If this current exceeds the rated current capacity of the reactor, it may cause the overcurrent protection device to operate, resulting in the reactor tripping.
Solution: Ensure that the rated current of the selected reactor is greater than the maximum current that may occur during startup, or adjust the setting parameters of the protection device to adapt to the instantaneous current during startup.
2. Voltage fluctuations in the power grid:
In the case of large or unstable voltage fluctuations in the power grid, the starting of the reactor may be affected by the voltage, especially in the case of low voltage or transient voltage drop, the reactor may not be able to start normally.
Solution: Ensure that the grid voltage is stable when the reactor is started, or consider installing voltage monitoring devices and voltage recovery devices to ensure the normal operation of the reactor.
3. Internal fault of reactor:
If there are faults or damages inside the reactor, such as capacitor short circuit, winding open circuit, etc., it may not work properly during startup and cause tripping.
Solution: Regularly inspect and maintain the reactor to ensure that its internal components and connections are working properly, and replace or repair it if necessary.
4. System parallel reactor problem:
If there are multiple reactors running in parallel in the system, tripping may occur at the moment of startup due to the mutual influence or resonance effect between the reactors.
Solution: Conduct a comprehensive analysis of the system to ensure that the operation mode and parameter design of the reactor are reasonable, and to avoid resonance or interference phenomena.
5. Operation error configuration:
During the start-up or operation of the reactor, the operator may configure incorrect parameters or settings, which may cause the protective device to malfunction and trip.
Solution: Train the operators to ensure they understand the correct operation steps and parameter settings of the reactor, and avoid problems caused by misoperation.
The reasons for the instantaneous tripping of high-voltage reactors during start-up involve multiple aspects. By taking effective measures to maintain, monitor, and train equipment, the occurrence of tripping events can be greatly reduced.