Compared to traditional grounding resistance testers, clamp type grounding resistance testers have the characteristic of non-contact measurement, making operation more convenient and safe. In many power testing projects nowadays, people are accustomed to using clamp type grounding resistance testers, but not everyone can understand their working principle. Below, the editor…

The high-voltage switch mechanical characteristic tester is a new specialized instrument for detecting the mechanical dynamic characteristics of high-voltage circuit breakers. Adopting high-tech technology and integrating computers, printers, measurement interface circuits, and operating power supplies, it is a new specialized instrument for high-voltage circuit breaker detection. The tester is equipped…

ZC-205A Transformer DC Resistance Rapid Tester is a professional transformer DC resistance testing equipment newly launched by our company ZUI. It is mainly used for DC resistance testing of transformers in power systems. The instrument adopts a large LCD display, full Chinese menu, user-friendly human-machine interface, complete functions, and convenient…

The battery internal resistance tester is an instrument used to test the internal resistance of batteries, which can be used to detect the health status and performance of batteries. The following are the usage methods and precautions for the battery internal resistance tester:1. Usage① Preparation workBefore testing, it is necessary…

The interference elimination during partial discharge detection mainly involves eliminating interference signals based on the principle of electromagnetic radiation. During on-site testing, the following methods are often used to eliminate interference in the test:1. Stagger time or turn off interference sourcesFor some interference sources (such as mobile communication signals, broadcast…

In modern society, electricity has become an energy source in our daily lives and work. In order to ensure the stable operation of the power system, strict testing and maintenance of power equipment are required. In this process, the DC high-voltage generator plays a crucial role. Below, we will provide…

The ZC-203AW fully automatic transformer ratio group tester is mainly used to supervise the quality of transformer products during production and use, to prevent inter turn short circuits, open circuits, connection errors, internal faults or contact faults of voltage regulating switches. The instrument is easy to operate, has complete functions,…

Cable fault testers are often used to detect cable faults. Power inspectors determine the point and type of cable fault by analyzing the waveform of the detection. So, how should the waveform of cable fault testers be analyzed? Today, the editor will give you some simple sharing to help you…

1. Operation method:① Instrument panel and wiring instructions:The instrument panel is shown in Figure 2. The leak detection key is used to preliminarily judge the vacuum degree of the vacuum tube, and the measurement key is used to apply high voltage and strong electromagnetic field to quantitatively test the vacuum…

The reasons for conducting impact tests on new or overhauled transformers before formal operation are as follows:1. Check if there are any weaknesses or defects in the insulation of the transformer and its circuit.When opening the no-load transformer, there is a possibility of operating overvoltage. When the neutral point of…