In order to reduce reactive power loss in power system, shunt capacitor banks are usually used to improve power factor. In practical application, the accident rate of capacitor compensation device is relatively high, which is determined by the characteristics of the working state of capacitor device. Therefore, it is very important to check the capacitor device regularly and find capacitor defects early to avoid the expansion of the fault.
Capacitors in the capacitor bank are all in parallel in the field, so the leads need to be removed when workers measure with a general capacitance meter, which is a heavy workload and easy to cause wiring errors. The newly developed capacitor and inductance tester of our company can measure a single capacitor of a group of parallel capacitors without disconnecting the wire, and can also measure the inductance and current. The wiring is convenient, the operation is simple, which reduce the workload of the maintenance personnel and greatly improves the testing efficiency of the site and provides security for the normal operation of the power grid.