By hvhipot 
The testing principle of the complete set of frequency conversion series resonance test equipment consists of sample C, which is composed of R resistor, L inductor, and C capacitor. The switch tester can test the mechanical characteristic parameters of the circuit breaker at different periods, opening and closing speeds, times, etc., taking into account the testing requirements of the old standards and covering the testing requirements of the new standards. It provides a powerful database function, saves all tested data, and provides later query function based on different criteria.
L is the inductance part of the variable frequency series resonance test equipment, which is a part of the reactor in the variable frequency series resonance test equipment, and C is the capacitance part. The insulation withstand voltage tester is a universal testing instrument for AC safety, suitable for safety testing of household appliances and low-voltage appliances. The leakage current value is adjusted by the coarse and fine adjustment knobs. When the leakage current exceeds the tolerance, the test voltage will be automatically cut off and an audible and visual alarm signal will be issued. There are external control terminals. When it comes to capacitor testing, attention should be paid to how to configure the reactor, which is based on the reference of capacity.
The complete set of frequency conversion series resonance test equipment can test the state of the circuit breaker under different loads. The switch tester can test the mechanical characteristic parameters of the circuit breaker such as different periods, opening and closing speeds, and times, taking into account the testing requirements of old standards; At the same time, it covers the testing items required by the new standards, provides powerful database functions, saves all tested data, and provides later query functions based on different criteria. Capacitive and inductive components can be analyzed from the series circuit diagram. Help us better analyze the data. Above, we will not reflect it on the visual screen of the series resonance device. We provide the calculation results, and you only need to configure them as needed.
The basic process of connecting the complete set of frequency conversion series resonance test equipment:
1. Connect the test circuit as required and thoroughly check the grounding condition.
2. Start the test power supply of the variable frequency series resonance test equipment, set the parameters, select automatic operation, and observe the changes in screen data. Emergency button on the panel at any time.
3. After the test is completed, the complete set of frequency conversion series resonance test equipment will automatically step down and stop.
It should be noted that safety measures should be taken throughout the entire process, and it is recommended to conduct appropriate emissions after the test.