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Technical Guide
15 methods for detecting leakage of SF6 gas-insulated electrical equipment
by admin on 24-12-02
SF6 (sulfur hexafluoride) is a gas widely used in the power industry, mainly in gas-insulated electrical equipment (GIS). Due to its excellent insulation and arc-extinguishing properties, SF6 is widely used in high-voltage and ultra-high-voltage electrical equipment. However, SF6 gas has an extre...
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Common cable fault types and their causes
by admin on 24-11-22
Cables are an indispensable part of modern power and communication systems. They carry a lot of electrical energy and information. However, cables may have various faults during use, resulting in system interruptions, equipment damage, and even safety hazards. Understanding the types of cable fau...
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What is a Load voltage regulator ?
by admin on 24-11-14
In modern power system, voltage stability and reliability are very important. In order to ensure the safe transmission and efficient use of power, On-load Tap Changer Transformer comes into being. It is a special type of transformer that can automatically or manually adjust the output voltage in ...
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Insulated rod AC voltage withstand test method and requirements
by admin on 24-11-14
In the power system, insulation rod (or insulation rod) is an important safety tool, widely used in the operation and maintenance of high-voltage power equipment. In order to ensure the safety performance of the insulation rod, it is necessary to carry out AC voltage withstand test. In this paper...
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What’s is Oil chromatography ?
by admin on 24-11-08
Oil chromatography is an important analytical technique, which is widely used in many fields such as chemistry, environmental science and food safety. Its main role is to separate and analyze the different components of complex mixtures, especially in the petrochemical industry, oil chromatograph...
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Differences Between Impedance and Resistance
by admin on 24-10-25
In electrical engineering and physics, impedance and resistance are two concepts that are often mentioned. Although the two terms are used interchangeably in some contexts, their meanings and applications are significantly different. To gain a deeper understanding of these two concepts, we will e...
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TEV Partial Discharge Detection Principle
by admin on 24-10-18
The TEV partial discharge detection principle is a non-contact method for detecting partial discharge activity in high-voltage equipment. By receiving and analyzing high-frequency electromagnetic signals generated on the surface of the equipment, the presence and location of any partial discharge...
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What role does SF6 gas leak detector play in the power system
by admin on 24-09-27
With the gradual improvement of voltage levels in domestic substations, the use of SF6 high-voltage circuit breakers in the power sector is currently growing at a rate of about 15% per year. In the fields of high voltage, ultra-high voltage, and ultra-high voltage switches, SF6 gas has almost bec...
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High voltage switch dynamic characteristic tester technology guiding
by admin on 24-09-23
Why do we need to first connect the grounding wire and then connect the broken wire when grounding the instrument on site? Answer: During on-site testing, due to the high induced voltage between the fracture of high-voltage switches (especially above 220kV) and the ground, this voltage value is l...
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The difference between High voltage withstand testing and Insulation testing
by admin on 24-09-14
Voltage withstand test and insulation test are both testing methods for electrical equipment. However, before conducting a voltage withstand test, it is generally necessary to conduct an insulation test because voltage withstand is a destructive test. Only by ensuring that the insulation of the e...
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The significance of measuring the opening and closing time and synchronicity of high-voltage switches
by admin on 24-09-06
Introduction and Function of High Voltage Switches The opening and closing time and synchronicity of high-voltage switches are used to measure the mechanical performance of high-voltage circuit breakers. They are bridging devices between transformers and electrical equipment, playing an important...
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Cable fault testing steps
by admin on 24-08-30
1.Before determining cable faults, testers must first determine the nature of the cable fault in order to adopt appropriate working and testing methods, in addition to mastering the performance and operation methods of the machine. Firstly, use a megohmmeter or multimeter to measure the insulatio...
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