Special instrument for testing low current residual voltage/leakage current of lightning arresters and zinc oxide resistors at rated voltage levels of 10kV and below
A specialized instrument for testing low current residual voltage/leakage current of lightning arresters and zinc oxide resistors with rated voltage of 10kV and below. It integrates DC high voltage power supply, measurement, and control system, and can complete the measurement of U1ma and 0.75U1ma leakage current at once. It is small in size, light in weight, practical, and easy to operate.

This machine adopts a large screen LCD display, full Chinese menu operation, easy to use high-precision sampling and processing circuit, and Fourier harmonic analysis technology to ensure more reliable data

The instrument uses high-speed magnetic isolation digital sensors to directly collect input voltage and current signals, ensuring the reliability and safety of the data. Support wireless synchronous voltage sampling method.

The instrument has functions such as resistive current fundamental peak output and edge phase correction. It is equipped with rechargeable batteries, calendar clocks, and micro printers, and can store 120 sets of measurement data.

Full current measurement range: 0-10mA effective value, 50Hz/60Hz
Accuracy: ± (reading X5%+5 µ A)
Accuracy of fundamental measurement of resistive current (quadratic method without phase to phase interference): ± (reading X5%+5 µ A)
Current harmonic accuracy: ± (reading X10%+10 µ A)
Reference voltage input range: 25V-250V effective value, total harmonic content<30% 50Hz/60Hz
Reference voltage measurement accuracy: ± (reading X5%+0.5V)
Accuracy of voltage harmonic measurement: ± (reading X10%)
Angle between fundamental current and fundamental voltage: 0-360
Battery working time: 6 hours for the host
Charging power supply: 220V ± 10% 50Hz/60Hz
Charging time: 5 hours
Host volume: 325X280X140
Host weight: 3.5Kg (excluding cables)
Working environment: Temperature: -1050 ° C Humidity:<90%