Touch screen grounding grid characteristic parameter tester DYDW-5/100

Product Overview

DYDW-5/100 earth network grounding resistance tester is a high-precision testing instrument used for testing grounding resistance and related parameters in substations and other fields. The instrument has the characteristics of small volume, light weight, convenient carrying, strong anti-interference performance and high accuracy. The instrument is an integrated structure, with built-in variable frequency power module, and the output power is continuously variable frequency and adjustable. The frequency can be changed to 45Hz or 55Hz. With a built-in high-speed processor core and high-end digital filtering technology, it effectively avoids the interference of power frequency electric field to the test and fundamentally solves the problem of accurate measurement under strong electric field interference. A large number of field tests and user use cases show that, when testing the grounding grid in the harsh electromagnetic environment of the operating substation, the measuring data of the grounding resistance tester of the grounding grid is accurate, stable, and has good repeatability. It is an ideal instrument for measuring the characteristic parameters of large and medium-sized grounding grids.

Instrument features:

? Full touch large LCD display

It is easy to operate. The instrument is equipped with a high-end full touch LCD screen and an ultra large full graphical operation interface. Each process is very clear and clear. The operator can use it without additional professional training. The whole process can be measured with one touch, which is a very ideal intelligent measuring device at present.

? Frequency conversion technology, accurate measurement

With strong anti-interference capability, the instrument has its own frequency conversion power supply module to provide the instrument measurement output power, with the frequency of 45Hz or 55Hz, and digital filtering technology is used to effectively avoid various power frequency interference signals on site, so that the instrument can achieve high-precision, accurate and reliable measurement.

? DSP high-speed processor

Precise and fast, the instrument uses a professional DSP fast digital signal processor as the processing core, which greatly improves the operation and processing ability of the instrument itself on the premise of ensuring the accuracy of measurement data.

? Full process intelligent measurement and control

With the strong support of the internal high-performance processing core, the instrument can quickly and automatically complete a series of complex calculation steps such as current output, voltage acquisition and frequency conversion during the whole measurement process. The instrument can automatically judge the impedance of the current loop, and automatically adjust the output current value of the different frequency power supply (the maximum output current is 5A) accordingly. The test task can be completed automatically without human intervention. The measuring contents of the instrument include the grounding impedance Z, pure resistance component R and pure inductance component X.

? Massive storage of data

The instrument is equipped with a calendar chip and a large capacity memory, which can store the test results in chronological order, view the history at any time, and print out.

? PC data processing

The data measured by the instrument can be exported through the U disk, and then the relevant data can be viewed and managed on the PC.