A detailed description of the technical specifications and operating principle of the capacitor–inductor tester.

发布时间：2021-11-24

The capacitor–inductor tester is a dedicated instrument for testing compensation capacitors without disconnecting the wiring. It delivers a test current of up to 20 A and can measure capacitance values as high as 2,200 μF. The device features strong anti‑interference capabilities, enabling reliable operation even in environments with intense electrical noise. In power systems, compensation capacitor banks are used to improve the power factor.

The working capacity of reactive power compensation capacitors is large, and they undergo frequent switching. To ensure equipment reliability, regular inspections are required. The conventional approach involves removing the capacitor busbar and then using a capacitance meter for measurement. This method is not only labor-intensive but also prone to damaging the capacitors.

The capacitance–inductance tester is also a multifunctional impedance measurement instrument, capable of automatically identifying and testing capacitive, inductive, or resistive components. The device can also be used independently for current measurement. It employs a high‑precision 50 mm clamp‑type current transformer to measure current, paired with a digitally isolated voltage‑sensing circuit, delivering stable performance and high measurement accuracy.

The instrument features a backlit, large‑screen LCD display that ensures clear visibility both day and night. It operates with a Chinese‑language menu, making it exceptionally easy to use. The device can store up to 128 sets of measurement data and includes a built-in thermal printer for printing test results. To perform the test, connect one end of the voltage cable to the “Voltage Output” terminal (25 V), and attach the other end’s clamp to the busbar connecting the two terminals of the capacitor bank under test. The current‑signal cable should be plugged into the “Current Input” connector.

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