The comprehensive relay protection tester is an instrument used to test the performance of relay protection equipment in power systems, widely used in fields such as power, petroleum, and chemical engineering. In order to ensure the normal operation and service life of the equipment, it is crucial to do a…

In many parts of the power system, high-voltage switch (circuit breaker) components are required. In order to ensure the stable and safe operation of these components, we need to use corresponding circuit breaker dynamic characteristic testers. These testing instruments have the advantages of intelligence, multiple functions, accurate data, strong anti-interference,…

The DC resistance tester is an important testing equipment in our power system. It is mainly used for testing semi-finished products, finished product factory tests, installation, major repairs, changes to tap changer, handover tests, and preventive tests in the power department in transformer manufacturing. Below, we will give you a…

A digital megohmmeter is composed of medium to large scale integrated circuits. This meter has a high output power, high short-circuit current value, and multiple output voltage levels (each model has four voltage levels).The working principle is that the DC high voltage generated by the internal battery as the power…

The capacitance and inductance tester plays a unique role in the power system. Testers generally use capacitance and inductance testers to measure high-voltage parallel capacitor banks inside the substation and on site. Next, let's talk about the problems that capacitance and inductance testers can solve.Firstly, the capacitance and inductance tester…

Partial discharge testers are widely used, and various power equipment in the power system needs to detect partial discharge conditions and evaluate insulation status. Therefore, only a handheld partial discharge tester is needed to solve this problem.The insulation status of various power equipment in the power system, such as high-voltage…

The measurement of dielectric loss is a very basic method in insulation testing. Through this process, we can effectively discover the overall moisture deterioration and local defects of electrical equipment insulation. Today, we will mainly analyze the fields in which dielectric loss testers are mainly used and the types of…

Battery activation tester, also known as battery charging and discharging tester. With the rise of new energy, the application of batteries is becoming increasingly widespread, and the inspection and maintenance of batteries are also receiving more attention. Due to the electrochemical characteristics of batteries, for their detection and maintenance, it…

The cable fault tester can accurately locate the location of cable faults. The classification of cable faults can be divided into short circuit, open circuit, low resistance fault, and high resistance flashover and leakage fault. Next, let's talk about the testing principle of the cable fault tester and its testing…

The application of DC high-voltage generators in our power system is very extensive, and they are mostly suitable for conducting DC high-voltage tests and leakage current tests on zinc oxide lightning arresters, power cables, generators, transformers, switches and other equipment in the power sector and enterprise power departments. So what…