The parameter comprehensive tester of transformer on-load regulator switch is a moving part connected with transformer circuit, so the detection of on-load tap changer has attracted more and more attention. In the "Electric power equipment handover and preventive test procedures", it is required to check the action sequence of on-load tap-changer and measure the switching time. The instrument is mainly used to measure the transition waveform, transition time, instantaneous transition resistance value, three-phase synchronization of transformer on-load tap-changer.

The instrument is highly intelligent, all Chinese menu prompts, easy to operate. The instrument is small, light weight, strong anti-interference ability, reduce the labor intensity of the field staff, is a power supply unit, transformer manufacturing industry to ensure safe production, improve product quality commonly used instruments.

Functional characteristics
Large output current, light weight;
Test Yn, Y, D transformer, resistance value without conversion directly display;
Can be measured with or without winding;
Waveform display automatically adjusts the amplitude of resistance and time value according to the sampled value;
With perfect protection circuit, strong reliability;
7 inch LCD display, easy to operate on site;
500 sets of data can be automatically saved internally.

Technical parameter
Output current: 1.0A, 0.5A,
Measuring range: Transition resistance: 0.3Ω ~ 20Ω(1.0A); 5Ω ~ 40Ω(0.5A)
Transition time: 0 ~ 320ms
Open circuit voltage: 24V
Measurement accuracy: Transition resistance: ±(5% reading ±0.1Ω); Transition time: ±(0.1% reading ±0.2ms)
Sampling rate: 20kHz
Storage mode: local storage
Dimensions: host 360*290*170 (mm); Cable pack 360*230*290 (mm)
Instrument weight: main machine 6.15KG
Test line length: Standard 13m length can be customized
 
Conditions of use
Ambient temperature: -10℃ ~ 50℃
Ambient humidity: ≤85%RH
Working power supply: AC220V±10%
Power frequency: 50±1Hz