The handheld zinc oxide arrester live-line tester is a special instrument used to detect the electrical performance of zinc oxide arresters. It is suitable for live-line or outage detection of zinc oxide arresters of various voltage levels, thereby timely discovering dangerous defects such as internal insulation moisture and valve plate aging.

The instrument is simple to operate and convenient to use. The entire measurement process is controlled by a microcontroller. It can measure the total current, resistive current and its harmonics, power frequency reference voltage and its harmonics, active powerand phase difference of zinc oxide arresters. The large screen can display the real waveforms of voltage and current. The instrument uses digital waveform analysis technology, automatic frequency conversion technology, harmonic analysis, digital filtering and other software anti-interference methods to make the measurement results accurate and stable,and can accurately analyze the content of the fundamental wave and the 3rd to 7th harmonics, and can overcome the influence of inter-phase interference to correctly measure the resistive current of the side-phase arrester. This instrument is equipped with a rechargeable battery, making it very convenient for test personnel to use on site. The instrument uses a unique high-speed magnetic isolation digital sensor to directly collect the input voltage and current signals, ensuring the reliability and safety of the data.
  • Instrument Features

1. This instrument adopts a large-screen liquid crystal display, full Chinese menu operation, and is easy to use.

2. It can measure the full current, resistive current, power frequency reference voltage, active power and phase difference of zinc oxide arresters, and the large screen can display the real waveforms of voltage and current.

3. The instrument uses digital waveform analysis technology, adopts automatic frequency conversion technology, harmonic analysis and digital filtering and other software anti-interference methods to make the measurement results accurate and stable, and can accurately analyze the content of the fundamental wave and 3-7 harmonics, and can overcome the influence of inter-phase interference to correctly measure the resistive current of the side-phase arrester.

4. The instrument is equipped with a rechargeable battery, which is very convenient for test personnel to use on site.

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