Technical
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The principle of multi-stage impulse voltage generator
In the vast field of electrical engineering and testing technology, the multi-stage impulse voltage generator plays an indispensable role as an important device. Its main function is to simulate lightning or other high-voltage transient phenomena to evaluate the withstand voltage performance of e...Read more -
Which parameters should be adjusted to generate lightning impulse voltage and switching impulse voltage?
In the power system, lightning impulse voltage and operating impulse voltage are two crucial concepts. They not only affect the safety and reliability of equipment, but also the overall operating efficiency of the power system. In order to effectively reduce the impact of lightning and operating ...Read more -
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Type and function of transformer oil
In the power system, transformer is a crucial equipment, and transformer oil plays an indispensable role in it. Transformer oil is not only an insulating material, but also a cooling medium to ensure the safety and stability of the transformer during operation. With the progress of science and te...Read more -
How to detect PDC partial discharge
In modern power systems, distribution cabinets, as important electrical equipment, their safety and reliability directly affect the stable operation of the entire power network. Partial discharge (PD) is one of the common electrical faults in distribution cabinets, which can lead to a decline in ...Read more -
What is the function of transformer silicon stack?
In modern power systems, transformers play an indispensable role. As the core equipment for power transmission and distribution, the performance of transformers directly affects the efficiency and stability of power systems. In the internal structure of transformers, silicon stacks, as one of the...Read more -
Similarities and differences of second pulse and third pulse in cable fault tester
In the technical field of cable fault detection, cable fault tester is a crucial tool. They effectively locate and diagnose faults in cables, reducing downtime and maintenance costs. In many test methods, the second pulse and the third pulse are two common signal analysis techniques. Although the...Read more -
Difference between double-winding transformer and autotransformer
In power systems, transformers are a vital device and are widely used in voltage conversion and power transmission. Two-winding transformers and autotransformers are two common types of transformers. They have significant differences in structure, working principle and application scenarios. Unde...Read more -
What is contact resistance and how is it tested
Contact resistance refers to the resistance generated between the contact surfaces of two electrical conductors. The existence of this resistance is due to imperfect contact on the contact surface, usually due to factors such as surface roughness, oxide layer, contamination, and differences in th...Read more -
GIS insulation status detection method
Ultrasonic and UHF are suitable for detecting the insulation state of GIS (gas insulated switchgear). As an important component of modern power systems, the reliability of GIS is crucial to the safe operation of the power grid. Due to factors such as long-term operation, harsh environmental condi...Read more -
The difference between dielectric strength tester and voltage tester
In the test and maintenance of electrical engineering and electronic equipment, dielectric strength tester and voltage tester are two important test tools. Although the two instruments have a certain overlap in function, their specific uses, test principles and applications are significantly diff...Read more -
15 methods for detecting leakage of SF6 gas-insulated electrical equipment
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...Read more -
Common cable fault types and their causes
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...Read more