◆Secondary load test, the use of clamp meter sampling current, without the need to disconnect the secondary circuit.
◆Automatic range switching: the measurement process can be switched to different positions according to the different values of the test object, so that the measurement accuracy and the number of display bits are guaranteed.
◆High measurement accuracy, wide range, low lower limit, can test the load of voltage transformer below 10VA.
◆The instrument can measure power frequency, temperature and humidity, so that the user can always know the working environment of the site.
Technical indicators
◆Environmental conditions Temperature: -5°C to 40°C
Relative humidity: <95% (25°C)
Altitude: <2500m
◆External disturbances: No extra strong vibration, no extra strong electromagnetic field
◆Secondary loads Main technical indexes of the instrument during testing
◆PT secondary load test Conductance measurement range: 0.1mS~99.9mS
Voltage meter: 0.5%
◆CT secondary load measurement Impedance measurement range: 0.1Ω~50.0Ω
Current meter: 0.5%
◆Measuring accuracy: DX=±( 1%×X+1%×Y±2 words)
DY=±(1%×X+1%×Y±2 words)
2 words--quantization error of the instrument
EDFH-II Type Transformer Secondary Load Online Tester
Reference from: China Electric Power Testing Equipment Website.