NDDW-VI Large Ground Grid Ground Resistance Tester

Product Introduction

   NDDW-Ⅵ Large Ground Grid Ground Resistance Tester, also known as Power Frequency Ground Resistance Tester, Ground Resistance Meter, etc., is a common instrument for testing and measuring ground resistance. It adopts new variable frequency AC power supply, dual-frequency measurement technology, extra-large touch color screen, and microprocessor technology, meeting the impedance testing requirements for two-wire, three-wire, and four-wire setups. It can also measure soil resistivity, step voltage, distributed potential, contact voltage, current phase angle, and other parameters. It is suitable for telecommunications, power, meteorology, computer rooms, oil fields, power distribution lines, tower transmission lines, gas stations, factory grounding grids, lightning rods, etc., and complies with standards for power substations and lightning protection device testing instruments. The instrument features precise, fast, simple, stable, and reliable testing.

    NDDW-Ⅵ Large Ground Grid Ground Resistance Tester can output an open-circuit voltage of up to 400V and a short-circuit current of up to 5A. Microprocessor control and automatic dual-frequency technology enable accurate measurement and calculation of ground impedance values at 50Hz power frequency under strong interference conditions, with clear display on the large screen. It can store 100 sets of data, with a resistance measurement range of 0.000Ω to 2000Ω. Measurement data can be printed via a thermal printer.

     NDDW-Ⅵ Large Ground Grid Ground Resistance Tester consists of a host, test leads, ground rods, etc., and has functions such as reading, reviewing, saving, and printing historical data.

Product Features

☆、Fully Touch Extra-Large LCD Display: Simple operation, the instrument is equipped with a high-end fully touch LCD screen, an extra-large graphical operation interface, making every process clear and intuitive. Operators do not require additional professional training to use it. A light touch completes the entire measurement process, making it an ideal intelligent measuring device.
☆、Variable Frequency Technology, Precise Measurement: Strong anti-interference capability, the instrument's measurement output power is provided by an internal variable frequency power supply module, with frequencies switchable to 45Hz or 55Hz. Digital filtering technology effectively avoids various on-site power frequency interference signals, ensuring high-precision, accurate, and reliable measurements.
☆、DSP High-Speed Processor: Precise and fast, the instrument uses a professional DSP fast digital signal processor as the core, greatly enhancing the instrument's computing and processing capabilities while ensuring accurate measurement data.
☆、Test Current 5 Ranges: 1A, 2A, 3A, 4A, 5A.
☆、Functions: Ground resistance measurement, soil resistivity measurement, step voltage measurement, distributed potential measurement, contact voltage measurement.

Technical Parameters