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What are the precautions for microcomputer relay protection tester?
2025-09-011. The testing device is equipped with an industrial computer and a Windows operating system. Please do not switch the host power on and off too frequently.2. The device panel or backplane is equipped with a USB port, which allows hot plugging of USB devices (such as USB drives), but… -

What is sulfur hexafluoride SF6 and why do we need to recycle SF6?
2025-09-01Sulfur hexafluoride (SF6) is a synthetic fluorinated compound with an extremely stable molecular structure. It is a colorless, odorless, non-toxic, non corrosive, non flammable, and non explosive gas at room temperature and pressure. It is a liquid at low temperature and low pressure, and turns into a white solid after… -

How to choose a DC resistance tester
2025-09-01The transformer DC resistance tester is divided into specifications such as 1A, 3A, 5A, 10A, 20A, 40A, 50A, 100A, etc. The instrument power supply is divided into external power supply AC220V, internal power supply (battery power supply), AC and DC power supply. At present, DC resistance testers with a capacity… -

The testing process of the DC high-voltage generator mainly involves the following six steps
2025-08-29Do you know what a DC high-voltage generator is? It is actually a commonly used instrument for electrical testing, mainly used for measuring leakage current and DC withstand voltage. In on-site testing, the device is required to be lightweight, convenient, and reliable for measurement. So the instrument adopts digital control… -

Analysis of Four Common Fault Causes of DC High Voltage Generators
2025-08-29The DC high-voltage generator is an instrument that provides a high-voltage DC source and is an essential equipment for high-voltage testing, specifically used for conducting DC withstand voltage tests. The instrument should be designed and produced using intermediate frequency modulation technology, and the use of step-up DC high-voltage generators for… -

What requirements should be met for the technical specifications of the DC high-voltage generator power supply?
2025-08-26The technical specifications of the DC power supply for the DC high-voltage generator can be divided into two categories: one is the characteristic specifications, which reflect the inherent characteristics of the DC stabilized power supply, such as input voltage, output voltage, output current, and output voltage regulation range; Another type… -

The main factors affecting the insulation performance of transformers
2025-08-26The main factors affecting the insulation performance of transformers during operation are temperature, humidity, oil protection methods, and overvoltage effects. Therefore, controlling these factors within a reasonable range is a key element to ensure the safe use of transformers.1. The influence of temperatureThe power transformer is insulated with oil paper,… -

The difference between transformer winding deformation impedance method and frequency response method
2025-08-26Introduction to winding deformation functionThe transformer winding deformation tester is a specialized testing instrument used to measure the deformation of transformer windings according to the power industry standard DL/T911-2004. Power transformers are inevitably subjected to various faults, short-circuit currents, or physical impacts during operation or transportation. Under the strong electric… -

Product characteristics of ultra-low frequency high voltage generator
2025-08-22VLF HV Generator is a type of power equipment used to generate ultra-low frequency and high voltage. It is usually widely used in the testing and diagnosis of power systems, insulation material testing, and other related fields. Ultra low frequency (VLF) signals refer to electrical signals in the frequency range… -

How to choose a cable fault tester that suits your needs?
2025-08-22In the electrical industry, cable fault testers are a very important device used to detect and locate cable faults, ensuring the stable operation of the power system. However, there are many types of cable fault testers available on the market, and how to choose a tester that suits your needs…




