NDZnO-202B Zinc Oxide Arrester Live Tester

Product Introduction

        Zinc Oxide Arrester Live Testing Instrument is a specialized device used to detect 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 Testing Instrument is simple to operate and easy to use. The entire measurement process is controlled by a human-machine interface. It can measure the total current, resistive current and its harmonics, power frequency reference voltage and its harmonics, active power, and phase difference of zinc oxide arresters. The large screen displays the true waveforms of voltage and current. Utilizing digital waveform analysis technology and software anti-interference methods such as harmonic analysis and digital filtering, the instrument ensures 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

☆ 800×480 color LCD touch screen, high-speed thermal printer; graphical display, intuitive interface, convenient for on-site personnel operation and use
☆ Wireless transmission of PT signal over 400 meters, configurable up to 2000 meters as needed
☆ Suitable for use in live, de-energized, or laboratory environments for arrester testing
☆ Capable of simultaneous testing of three-phase current and three-phase voltage, improving work efficiency; also supports single-phase or two-phase testing for flexible options. The instrument operates with low internal voltage, not exceeding 12V; current and voltage sensors are fully isolated, ensuring safety and reliability
☆ Supports both wired and wireless synchronization for voltage reference signal sampling; also supports voltage-free mode, where the voltage reference is calculated via software
☆ Equipped with a high-energy lithium-ion battery, especially suitable for environments without power supply
☆ Features an embedded human-machine interface, supports direct shutdown; includes a USB port for data export via U disk
☆ Large-capacity FLASH memory for storing massive test data, with functions for data management and saving
☆ Comes with upper-level management software for historical data management, recalculation, data analysis, report printing, and more
☆ High sampling frequency and advanced digital signal processing technology ensure strong anti-interference performance and extremely high measurement accuracy
☆ Powerful software with included wiring diagram patterns
☆ Housed in a dustproof, waterproof, and corrosion-resistant engineering plastic sealed case, compact and lightweight for easy portability
☆ Customizable options available to meet specific customer requirements

Technical Parameters

☆ Power supply: 220V, 50Hz or internal lithium battery
☆ Measurement range: Leakage current 0-10mA (expandable)
☆ Voltage: 30-100V (expandable)
☆ Measurement accuracy: Current - when total current >100μA: ±5% reading ±1 digit
☆ Voltage - when reference voltage signal >30V: ±5% reading ±1 digit
☆ Voltage reference signal sampling method: Wired synchronization 40 meters (expandable)
☆ Wireless synchronization: >400 meters (expandable)
☆ Lithium battery charging time: >6 hours
☆ Continuous operation time: >4 hours
☆ Intermittent operation time: >8 hours
☆ Instrument dimensions: Main unit 36cm×26cm×14cm
☆ Accessory box: 42cm×33cm×20cm
☆ Instrument weight: Main unit 5.0kg
☆ Accessory box: 9.0kg