The difference between variable frequency and power frequency induction series resonance test set

1. Variable frequency series resonance testing device

1) Intelligence

2) By adjusting the frequency to reach the resonance point, the frequency range is generally 30-300Hz

2. Power frequency induction series resonance testing device

1) Traditional

2) The frequency remains unchanged at 50Hz, and the resonance point is reached by adjusting the inductance

3) Different test subjects

1. The frequency modulation series resonance mainly tests the following equipment and requires the following parameters to be provided:

Cable: voltage level, length, cross-sectional area

Main transformer: voltage level, capacity

Circuit breakers, busbars, busbars, insulators: voltage level

GIS: Voltage level, interval

2. The power frequency induction series resonance mainly tests the following equipment and requires the following parameters to be provided:

For hydropower and thermal power plants: the capacity of hydraulic and thermal power units needs to be provided

Measuring motor: rated voltage and capacity