The operating methods of partial discharge testers may vary depending on the specific equipment. The following are the general operating steps for partial discharge testers:1. Detection RangeFirst, determine the rated voltage range of the electrical equipment to be monitored, then select a partial discharge detector that can accommodate this range.…

Choosing a suitable partial discharge detector requires considering the following factors:1. Detection rangeFirstly, determine the rated voltage range of the electrical equipment that needs to be monitored, and then select a partial discharge detector that can adapt to the range. Generally speaking, the rated voltage range of the detector should…

The insulation resistance tester is a new generation of transformer DC resistance testing instrument, which is small in size, light in weight, and easy to carry. It has the characteristics of rapid measurement, convenient use, and high measurement accuracy. The self check and automatic calibration functions reduce the difficulty of…

What is the reason why we occasionally experience unstable or incorrect waveforms during the use of cable fault testers? Today, let's take everyone to understand the principles behind it.The factors that affect the waveform of cable fault testers include:① If the insulation layer material of the cable is oil-paper cable…

Electric power workers often come into contact with circuit resistance testers in their daily work. The circuit resistance tester mainly measures the high-precision contact (circuit) resistance of high and low voltage switches, the DC resistance of cable lines, and other situations that require high current and micro resistance measurements. Due…

The main grounding network of power plants and substations plays a decisive role in ensuring the safe operation of power equipment and personal safety. The grounding resistance value is an important technical indicator of the grounding grid. Due to the significant difference between the design value and the actual value…

The AC withstand voltage test of various large power transformers, power cables, steam turbines, hydro generators and other capacitive equipment must be conducted regularly in strict accordance with the test procedures; Under power frequency conditions, due to the large capacitance of the test piece or high testing voltage requirements, the…

1. Dust controlForeign objects and dust are very important factors in causing partial discharge. The test results show that metal particles with a diameter of ф 1.5 μ m can generate discharges far greater than 500pC under the action of an electric field. Both metal and non-metal powders generate a…

The transformer comprehensive characteristic testing platform, as the core equipment for power transformer detection, can be summarized into four dimensions: high precision, high integration, high safety, and intelligence. The specific technical characteristics are as follows:1. Full parameter synchronous detection, achieving industry benchmark accuracy① Multi parameter real-time displayAdopting LCD backlit display…

The main structure of an oil immersed transformer consists of a body, an oil tank, a cooling device, a protective device, and an outgoing device. The device body includes an iron core, windings (coils), insulation, leads, and tap changers; The fuel tank includes the fuel tank body and fuel tank…