ETCR3300B Large Grounding Resistance Tester

ETCR3300B Large Grounding Resistance TesterIt is a large-scale grounding parameter developed by Shanghai Kangdeng Electric for substations, power plants, microwave stations, communication base stations, etc. The instrument has powerful functions and accurate test results. The instrument adopts a new type of variable frequency AC power supply and measures such as microcomputer processing control and signal processing, which effectively solves the anti-interference problem in the testing process, simplifies the experimental operation process, improves the accuracy and precision of the test results, and greatly reduces the labor intensity and testing cost of the testing personnel. The instrument adopts automatic frequency conversion anti-interference technology, combined with 400V/5A high-power output, which can accurately measure data at the power frequency of 50Hz in strong interference environments. The instrument structure is sturdy, and the instrument box is beautiful, durable, and has a protection level of IP65.

The instrument is manufactured according to the "JJG984-2004 Grounding Conductivity Verification Regulations - Resistance Tester", "DL/T475-2006 Grounding Device Characteristic Parameter Measurement Guidelines", and "DL/T845.2-2004 General Technical Conditions for Resistance Measurement Devices Part 2: Power Frequency Grounding Resistance Tester".

Product Features

1. Adopting a touch color screen, the testing process is convenient and easy, and it is very convenient to view test results and historical records. The "Help" button operation method is clear at a glance, and the built-in printer can print test results on site.

2. By using frequency conversion technology, any two frequencies can be selected for measurement within the frequency range of 40Hz-60Hz, such as 46H and 56Hz.

3. The output current is 1A~5A and the voltage is 400V. It adopts automatic frequency conversion technology and software and hardware filtering technology, which makes the instrument have high anti-interference performance and stable and reliable test data.

4. It can measure the grounding resistance, grounding conductivity, soil resistivity, step voltage, contact voltage, surface potential gradient, etc. of large grounding grids.

5. Equipped with current and voltage pile testing functions, it is used to diagnose faults such as poor contact of connecting wires and poor grounding of voltage and current piles. Self check function, equipped with a 0.5 Ω standard resistor to perform self check on the instrument at any time. Ensure the accuracy of the test results.

6. Supports Bluetooth communication for Android system, and after installing the app, it can be tested or the test results can be viewed on mobile devices.

7. Equipped with a USB communication interface, the test results can be uploaded to a computer for easy access to historical records and data analysis.

Product Display

Technical Specifications

Random attachment

1 host, 4 test wires, 1 ground wire, 1 power cord, 1 USB data cable, 4 grounding pins, 1 self-test standard resistor, and 1 tool kit.