Grounding and Insulation Resistance Tester

With the continuous update and expansion of modern technology, the reliability of power system and high voltage equipment also put forward higher requirements, electrical equipment accidents or damage, usually closely related to insulation defects. The large capacity, high voltage, diversified structure and sealing of electrical equipment should be updated and higher requirements. In order to understand the insulation performance of the sample, we must first do absorption ratio and polarization index test to provide safety guarantee for the next leakage, dielectric loss, partial discharge and so on. Our company according to the electric power standardization rules to introduce this type of insulation resistance tester, electricity The equipment carries on the insulation, absorption ratio, polarization index test, provides the early stage accurate judgment for the series insulation test.

RDWR-5A grounding resistance tester is a special instrument for measuring grounding resistance of grounding grid and grounding conduction between grounding points. Using frequency conversion anti-interference technology, Portable Earth Resistance Meter does not need large current measurement, and can measure accurate data of 50 Hz in strong interference environment of substation.
The measurement results are displayed by large screen LCD, and can be printed out by its own micro printer. It simplifies the test operation process, improves the accuracy and accuracy of the test results, and greatly reduces the labor intensity and test cost of the test personnel. The instrument can measure the grounding impedance and resistance at the same time, which can reflect the actual characteristics of the grounding grid

The reliable and effective connection between the grounding down lead of power equipment and the grounding grid is the fundamental guarantee for the safe operation of the equipment. Grounding down lead is the connection part between power equipment and grounding grid.
In the long-term operation of power equipment, the junction may be affected by damp and other factors, resulting in contact corrosion, even fracture and other phenomena, resulting in the increase of resistance between grounding down lead and main grounding grid connection point, which can not meet the requirements of power regulations, so that there are unsafe hidden dangers in the operation of the equipment, especially in serious cases It will cause the equipment to lose ground. The ground conduction tester is a portable tester with high degree of automation developed by our company, which is used to measure the conduction resistance between the grounding down leads of various power equipment in the substation.