NDZnO-202A Zinc Oxide Arrester Live Tester

Product Introduction

       Zinc Oxide Arrester Live Detection Instrument is a specialized device used to test the electrical performance of zinc oxide arresters. It is suitable for live or de-energized testing of zinc oxide arresters at various voltage levels, enabling timely detection of hazardous defects such as internal insulation moisture and valve aging.

       Zinc Oxide Arrester Live Detection Instrument is simple to operate and easy to use. The entire measurement process is controlled by a microcomputer, allowing for the measurement of the full current, resistive current and its harmonics, power frequency reference voltage and its harmonics, active power, and phase difference of zinc oxide arresters. A large screen displays the true waveforms of voltage and current. Zinc Oxide Arrester Live Detection Instrument utilizes digital waveform analysis technology and employs software anti-interference methods such as harmonic analysis and digital filtering to ensure accurate and stable measurement results. It can accurately analyze the content of the fundamental wave and 3rd to 7th harmonics, overcome phase-to-phase interference, and correctly measure the resistive current of side-phase arresters.

Product Features

☆、Zinc Oxide Arrester Live Detection Instrument comes standard without a high-energy lithium-ion battery; an internal battery is optional.
☆、5.7-inch 320×240 LCD display, high-speed thermal printer; graphical display with an intuitive interface for easy on-site operation and use.
☆、Suitable for use in live, de-energized, or laboratory environments.
☆、Current and voltage sensors are fully isolated, ensuring safety and reliability. Truly enables simultaneous testing of three-phase current and three-phase voltage, improving work efficiency; also supports single-phase or two-phase testing for convenient selection.
☆、Four testing modes. Supports three-phase voltage or B-phase voltage reference signal sampling; supports no-voltage mode, where the voltage reference is found via software calculation; also optionally supports the induction plate method, which finds the voltage reference through the electric field strength of the B-phase.
☆、Zinc Oxide Arrester Live Detection Instrument allows continuous testing, displays voltage and current curves, and can quickly print data and curves.
☆、Equipped with internal memory that can store up to 200 sets of test data even after power loss.
☆、Optional RS232 communication interface allows testing via an upper computer and exporting test data.
☆、Capable of anti-interference calculation, compensating for deviations in A and C phase currents caused by B phase.
☆、High sampling frequency and advanced digital signal processing technology ensure strong anti-interference performance and extremely high measurement accuracy.
☆、Optional internal high-energy lithium-ion battery, especially suitable for locations without a power source. Zinc Oxide Arrester Live Detection Instrument operates on low voltage only, not exceeding 12V, and can work even while charging.
☆、Housed in a dustproof, waterproof, and corrosion-resistant engineering plastic sealed case, compact and lightweight for easy portability.

Technical Parameters

☆、Power supply: AC220V/50Hz
☆、If equipped with an internal high-energy lithium-ion battery, it can be powered by the internal battery, with a charging time >3 hours and continuous operation time >8 hours.
☆、Measurement range: Leakage current 0-10mA (expandable)
☆、Voltage: 30-100V (expandable)
☆、Electric field strength input range: 30kV/m~300kV/m (optional)
☆、Measurement accuracy: Current - when full current >100μA, ±5% of reading ±1 digit
☆、Voltage - when reference voltage signal >30V, ±2% of reading ±1 digit
☆、Voltage reference signal sampling distance: 20 meters (expandable)
☆、Main unit dimensions: 360mm×260mm×140mm
☆、Main unit weight: 5.0kg