Zinc Oxide Arrester Live Detection Instrument 

Features of Zinc Oxide Arrester Live Detection Instrument

1. The instrument adopts a large-screen LCD display, full Chinese menu operation, and is easy to use.

2. High-precision sampling and processing circuits, advanced Fourier harmonic analysis technology, ensure more reliable data.

3. The instrument uses a unique high-speed magnetic isolation digital sensor to directly collect input voltage and current signals, ensuring data reliability and safety.

4. It has functions such as resistive current fundamental peak output and side-phase correction.

5. The instrument is equipped with a rechargeable battery, calendar clock, and micro printer, and can store 120 sets of measurement data.

Test Methods for Three-Phase Simultaneous Measurement of Zinc Oxide Arrester Live Tester

1. Wired: PT secondary method.

2. Induction plate method: The electric field induction method can be used instead of PT secondary wiring.

3. Single current method: (Harmonic method) It can directly measure resistive current without connecting PT secondary.

Technical Specifications of Three-Phase Simultaneous Measurement Zinc Oxide Arrester Live Tester

1. Total current measurement range: 0-10mA RMS        

  Accuracy: ±(reading ×5%+5uA)

2. Resistive current fundamental measurement accuracy (wired, excluding interphase interference): ±(reading ×5%+5uA)

3. Current harmonic measurement accuracy: ±(reading ×10%+10uA)

  Current channel input resistance: ≤2Ω

4. Reference voltage input range: 25V-250V RMS  

  Accuracy: ±(reading ×5%+0.5V)

5. Voltage harmonic measurement accuracy: ±(reading ×10%)  

  Reference voltage channel input resistance: ≥1800kΩ

6. Battery continuous working time: more than 8 hours        

  Battery charging time: more than 6 hours

7. AC charging: AC 220V 10%, 50Hz 1%  

8. Instrument dimensions: 34cm×22cm×20cm

9. Instrument weight: 5kg