What is the cause of oil leakage in oil immersed transformers? Next, the editor will give you a brief introduction.1. Welding qualityThe shell of an oil immersed transformer is a combination of welded and connected steel plates. Due to the long weld seam and numerous welded joints, high requirements are…

The fault diagnosis method for oil immersed transformers is to analyze the collected transformer fault information and determine the type of transformer fault based on the data analysis results. During this process, the accuracy of the collected information plays a crucial role in the accuracy of fault diagnosis. There are…

The degradation of transformer insulation is often the result of a combination of multiple factors, not a single factor. Partial discharge is not only the cause of insulation degradation, but also a precursor and manifestation of insulation degradation. The direct causes of partial discharge in transformers usually include:① There are…

The large current generator can be used as a large current test device or primary current injection test is a Preventive maintenance technology. The performance of circuit breakers installed in electrical or automation systems is evaluated by injecting current. Due to the crucial importance of circuit breakers for the overall…

The grounding continuity detection equipment is a kind of equipment used to detect whether the Earthing system operates normally, which is usually used in the fields of power, communication, medical treatment, manufacturing, etc. During use, grounding continuity detection equipment is usually used to detect the following situations:1. Whether the grounding…

1. Infrared thermal imaging detectionInfrared thermal imaging detection is a very important and necessary test in substation detection. Imported infrared thermal imaging equipment is usually used to detect various transformers, fittings, insulators, etc. inside substations., Mark and recheck imaging equipment with abnormal high temperatures to confirm if there are any…

The main uses of DC high-voltage generators include the following aspects:1. Laboratory research:The DC high-voltage generator can simulate high-voltage environments in the laboratory and be used for various scientific research, material testing, and performance evaluation of electrical equipment. For example, conducting voltage withstand tests on insulation materials under high voltage…

The common faults and handling methods of DC high-voltage generators are as follows:1. Abnormal output voltage:It may be caused by issues such as power failure, output circuit short circuit, or open circuit. The treatment method includes checking the power supply and confirming whether the power supply is normal; Check the…

The supply of electricity is an essential factor in the development of the economy and the continuous progress of science and technology. The main structure of urban and rural power supply networks has already adopted power cables. Power cables have the advantages of high safety, good stability, and no impact…

There is a polarity relationship between the primary and secondary sides of the power transformer coil. If there are several coils or power transformers combined, their polarity needs to be known in order to be used correctly. For a power transformer with two coils, if the electric potential induced within…