What are the uses of zinc oxide arrester tester?

The zinc oxide arrester tester is a special instrument used to test the electrical performance of zinc oxide arresters. The instrument is suitable for live or power outage detection of zinc oxide arresters of various voltage levels, so as to promptly detect moisture in the internal insulation of the equipment. and dangerous defects such as valve plate aging.

The instrument is simple to operate and easy to use. The entire measurement process is controlled by a microcontroller. It can measure the full current, resistive current and its harmonics, power frequency reference voltage and its harmonics, and active power of the zinc oxide arrester. and phase difference, the large screen can display the real waveforms of voltage and current. The instrument uses digital waveform analysis technology and uses software anti-interference methods such as harmonic analysis and digital filtering to make the measurement results accurate and stable.

Zinc oxide arrester is an arrester with good protection performance. Utilizing the good nonlinear volt-ampere characteristics of zinc oxide, the current flowing through the arrester at normal operating voltage is extremely small (microamperes or milliamperes); when overvoltage occurs, the resistance drops sharply and the energy of the overvoltage is discharged. achieve protective effects. The difference between this kind of arrester and the traditional arrester is that it has no discharge gap and uses the nonlinear characteristics of zinc oxide to play the role of discharge and breaking.

The zinc oxide arrester tester is a special instrument used to detect various electrical parameters of arresters on site and in the laboratory. It is widely used in on-site online monitoring (live testing) and laboratories (power outage maintenance) of zinc oxide arresters. ) in testing. It complies with the requirements of the People's Republic of China and the State Electric Power Industry Standard "DL/T987-2005 Zinc Oxide Arrester Resistive Current Tester General Technical Conditions". This instrument uses advanced technologies such as microcomputer sampling and control, and can measure the full current, third harmonic, resistive current, resistive current peak, capacitive current, active power, etc. of zinc oxide arresters under power frequency voltage. And display the voltage and current waveforms and printout. It adopts large-screen LCD display and Chinese character menu prompts for operation, making the human-computer exchange function stronger. At the same time, on-site wiring display is provided. This instrument has the characteristics of simple wiring, high measurement accuracy and strong reliability.