Product introduction:
VFSR variable frequency series resonant test system adjust the voltage by changing the frequency，for ac withstand voltage test and partial discharge test. Equipment can use small capacity power to do the equivalent of 30-150 times capacity power supply test by using the series resonance principle. It greatly solve the problem of shortage of power capacity on site test .
VFSR variable frequency series resonant test system is widely used in electric power,metallurgy,petroleum,chemical and other industries.It is applicable to the large capacity, high voltage test product commissioning test and the preventive test.
Apply to:
10kV,35kV,110kV,220kV,550kV XLPE cable withstand voltage test
66kV,110kV,220kV,500kV GIS withstand voltage test
Large generating units,power transformer withstand voltage test
Transformer induced withstand voltage and partial discharge test system.
GIS,Tranformer,instrument transformer,bushing,circuit breaker,switch,large generator partial discharge test
Small capacity VFSR technical parameters:
1、Operation temperature range：-10~45℃
2、 Operation humidity range：≤90%RH
3、 Altitude：≤1000m
4、 Power supply：220V±10％,single phase,50/60Hz
5、 Power capacity：10kW
6、 Automatic/manual tuning,automatic/manual booster
7、 Self-clocking,automatic step-down
8、 Frequency range：30～300Hz
9、 Frequency resolution adjustment ：0.02Hz,instability≤0.05%
10、 Noise level： ≤60dB
11、Accuracy of measurement system： grade 1
12、Output waveform：sine wave,waveform distortion rate ≤1%
13、Q value：20～80
14、System has automatic protection including IPM,over voltage,over current,discharge etc.
Large capacity VFSR technical parameters:
1、 Operation temperature range：-10~40℃
2、 Operation humidity range：≤90%RH
3、 Altitude：≤1000m
4、 Power supply：380 ╳（1±10％）V,three phase,45～65Hz
5、 Frequency conversion power output range：20 Hz ～ 400Hz
6、Complete system operation frequency range：30 Hz ～ 300Hz
7、 Frequency conversion voltage output range：0V ～ 460V
8、Frequency resolution adjustment ：0.02Hz
9、 Voltage resolution adjustment：0.05%
10、Noise level： ≤60dB
11、Accuracy of measurement system： grade I
12、Output waveform：sine wave,waveform distortion rate ≤1%
13、Quality factor（Q value）：30～150
