Technical Guide
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Differences Between Impedance and Resistance
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...Read more -
TEV Partial Discharge Detection Principle
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...Read more -
What role does SF6 gas leak detector play in the power system
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...Read more -
High voltage switch dynamic characteristic tester technology guiding
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...Read more -
The difference between High voltage withstand testing and Insulation testing
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...Read more -
The significance of measuring the opening and closing time and synchronicity of high-voltage switches
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...Read more -
Cable fault testing steps
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...Read more -
What are the measurement methods of using a high voltage generator
High voltage generator alias direct high voltage generator or DC high voltage generator, it is specially used to detect the electrical insulation strength and leakage current of power devices. Generally, the use of high voltage generators is to carry out DC voltage withstand test on zinc oxide ar...Read more -
Reveal SF6 gas leak detection techniques
When it comes to SF6 gas leak detection, skill and experience are key to improving operational efficiency. If you want to detect gas leaks quickly and accurately, and provide high-quality repair and maintenance services, then you have come to the right place. This article will reveal some importa...Read more -
Test requirements and methods for Insulation oil electrical performance
As a medium filled inside electrical equipment, insulating oil has many advantages such as insulation, heat dissipation, and arc extinguishing, and is widely used. For example, large power transformers currently use insulating oil for insulation and heat dissipation. But there is a discharge faul...Read more -
Invisible killer of power equipment: Harm and prevention of partial discharge
In modern society, electricity is everywhere, from daily household appliances to vast power grid systems, the safe use of electricity is of utmost importance. However, in the power system, an invisible but extremely dangerous phenomenon – partial discharge, is quietly threatening the operat...Read more -
The significance of measuring the opening and closing time and synchronization of high voltage switches
Introduction and function of high voltage switch High voltage switch, closing time and synchronization is used to measure the mechanical performance of high voltage circuit breaker, transformer and electrical equipment bridge device, in the entire circuit to play an important role in breaking and...Read more