The power capacitor protector is a power capacitor control system that can be used with switching capacitor contactors , reactive power compensation controllers , fuses, etc., mainly as overcurrent, short circuit, inrush current, harmonics, over voltage in power capacitor and compensation compensation circuit And other failures to protect the power capacitor protector overcurrent protection as a new product to fill the gap of the domestic power capacitor protector can be widely used in power factor automatic compensation control circuit.
Application Notes for Power Capacitor Protector
1, Protector power supply should be consistent with the nominal voltage.
2, protector wiring terminals should be correct, good contact.
3, should be regularly checked to ensure reliable operation.
4, protector action instructions, you must carefully observe the type of fault, carefully check the cause of the malfunction, the correct operation of the fault before they can run again.
5. When the capacitor is put into operation, the running indicator light is blinking. If overcurrent trip occurs in a short time, use the clamp ammeter to measure the capacitor's time running current. If the current value exceeds 1.35 times of the rated current. Explain the normal overcurrent protection within the scope of protection. Otherwise it may be due to excessive harmonic content in the power grid.
6, the current status of the capacitor to determine the basic judgments: When the capacitor is put into operation, the running indicator light has a certain frequency flashing, if the flashing frequency is low or not flashing, indicating that the capacitor running current is small, or may be no current. This situation may be contactor control circuit is not put into operation or reduce the capacity of the capacitor itself.
7, protector action self-locking or fault alarm, self-locking light. The capacitor circuit has a large current fault, you need to carefully check the reason, to be troubleshooting, to reset the start, in order to avoid repeated fault expansion.
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