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…

1. Insulation testInsulation test is one of the most basic tests in transformer testing. Its purpose is to verify whether the insulation quality of the transformer meets the specified standards and requirements. The insulation test of transformers is divided into AC withstand voltage test, DC withstand voltage test, and dielectric…

Low voltage short-circuit impedance measurement is a basic item in conventional testing projects. By comparing the short-circuit impedance values measured before and after the transformer is subjected to short-circuit current impact, the degree of winding deformation can be preliminarily estimated based on the magnitude of its change. The impedance change…