NDYH-V Zinc Oxide Arrester Live Tester

Product Introduction

       NDYH-V Zinc Oxide Arrester Tester is a specialized instrument used to detect the electrical performance of zinc oxide arresters. This device 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 aging valve plates.

       The instrument is simple to operate and easy to use. The entire measurement process is controlled by a single-chip microcomputer. It can measure the total current, resistive current and its harmonics, power frequency reference voltage and its harmonics, active power, and phase difference of the zinc oxide arrester. A large screen displays the true waveforms of voltage and current.
       Using digital waveform analysis technology, the instrument 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 the side-phase arrester.
       The device is equipped with a high-speed panel printer and rechargeable batteries, making it highly convenient for field use. It uses a unique high-speed magnetically isolated digital sensor to directly collect input voltage and current signals, ensuring data reliability and security.

Product Features

☆、Zinc Oxide Arrester Characteristic Tester features a large LCD screen and full Chinese menu operation for ease of use;
☆、High-precision sampling and processing circuits, combined with advanced Fourier harmonic analysis technology, ensure data reliability;
☆、The instrument uses a unique high-speed magnetically isolated digital sensor to directly collect input voltage and current signals, ensuring data reliability and security.
☆、Functions include output of resistive current fundamental peak and side-phase correction;
☆、Equipped with rechargeable batteries, a calendar clock, a micro printer, and capable of storing 210 sets of measurement data;

Technical Parameters

☆、Total current measurement range: 0—10mA RMS, 50Hz/60Hz Accuracy: ±(reading × 5% + 5µA)
☆、Resistive current fundamental measurement accuracy (secondary method, excluding phase-to-phase interference): ±(reading × 5% + 5µA)
☆、Current harmonic accuracy: ±(reading × 10% + 10µA)
☆、Reference voltage input range: 25V—250V RMS, total harmonic content <30% 50Hz/60Hz
☆、Reference voltage measurement accuracy: ±(reading × 5% + 0.5V)
☆、Voltage harmonic measurement accuracy: ±(reading × 10%)
☆、Fundamental current-voltage phase angle Φ: 0°–360°
☆、Battery operating time: 6 hours for main unit Charging power supply: 220V ± 10%, 50Hz/60Hz Charging time: 5 hours
☆、Main unit dimensions: 325 × 280 × 140
☆、Main unit weight: 3.5Kg (excluding cables)
☆、Operating environment: Temperature: -10—50°C Humidity: <90%