zinc oxide lightning arrester live tester is a special instrument for on-site and laboratory detection of various electrical parameters of lightning arresters. It is widely used in on-site online monitoring (charge test) and laboratory (blackout maintenance) testing of zinc oxide arresters.
It conforms to the requirements of the People's Republic of China power industry
standard "DL474.5-92 Field Insulation Test Implementation Guide - Arrester Test". The instrument adopts microcomputer to carry out sampling, control and other advanced technologies, and can measure the full current, third harmonic, resistive current, resistive current peak, capacitive current, active power of the zinc oxide arrester under the power frequency voltage.
It also displays voltage and current waveforms and printout test data. The large-screen LCD and the Chinese/English character menu
prompt operation make the user interfacecomfortable, and at the same time provide the on-site waveform display. The instrument has
the characteristics of simple wiring, high measurement accuracy and high reliability. The instrument is small in size and light in
weight, and has an integrated design for easy carrying and field work.
Main features
1. This instrument adopts 800×480 dot matrix 65K truely colorful large-screen LCD, Chinese/English menu operation, easy to use,
and the display data is clear to see and easy to read.
2. High-precision sampling and processing circuits, advanced Fourier harmonic analysis technology, which can make datamore
reliable.
3. The instrument uses a unique high-precision sensor to directly collect the input voltage and current signals.
4. With harmonictest function, can measuresingle or three phase at the same time.
5. Has a resistive current base wave peak output function.
6. The instrument has built-in non-volatile memory. It can store a large amount of recorded information such as test data,
waveforms, and harmonics. 30 sets of measurement records can be saved in the cycle update mode.
7. The instrument is equipped with a USB flash drive, which can store any set of test records (the capacity is limited by the size
of the USB flash drive).
8. The instrument voltage test line is equipped with an insurance anti-missing line, and the instrument voltage and current plug
has an anti-interruption function.
9. The instrument is equipped with a wireless transmitter module for voltage wireless acquisition, which can measure with the host
together.
10. The instrument has a built-in high-precision real-time clock for date and time calibration.
11. The instrument has a built-in high-speed micro thermal printer that prints measurement data.
12. The instrument is equipped with a rechargeable battery, can work continuously for 6 hours, calendar clock, power-down storage,
U disk storage, micro-printer.
Main Technical Parameters
Full current: 0-20mA, test accuracy: ±(reading×5% + 5uA)
Resistive current: 0-20mA, test accuracy: ±(reading×5% + 5uA)
Capacitive current: 0-20mA, test accuracy: ±(reading×5% + 5uA)
Current harmonic: 0-20mA, test accuracy: ±(reading×10% + 10uA)
Reference voltage: maximum 100V RMS, test accuracy: ± (reading×5% + 0.5V)
Voltage harmonic: maximum 100V RMS, test accuracy: ± (reading×10%)