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Jinli create a safe and worry-free power environment
Sep 01 , 2021
Recently, the Anhui Meteorological Bureau and the Provincial Development and Reform Commission jointly issued the "14th Five-Year Development Plan for Meteorological Services in Anhui Province." The plan proposes that during the "14th Five-Year Plan" period, the province's meteorological construction will focus on four items including meteorological monitoring, forecasting and early warning...
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Silicon oxide varistor (SOV) surge arrester
Oct 27 , 2021
The traditional valve surge arrester was patented in 1935 and its basic design is a spark gap for overvoltage discharge, and a series resistor to limit freewheeling. This was the best design on the market for many years, but the silicon oxide varistor (SOV) surge arrester appeared now. The basic design of a silicon oxide varistor (SOV) surge arrester is a pair of metal electrodes sep...
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Wind power-main force for carbon neutrality
Nov 11 , 2021
Wind power is the main energy source for constructing a new power system. It is the main force that supports the power system to take the lead in decarbonization, and then promotes the energy system and the whole society to achieve carbon neutrality. The large-scale and high-quality development of the wind power industry is an important strategic choice for implementing the dual-carbon...
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Basic knowledge about grouding
Nov 23 , 2021
When a lightning wave hits a tower or lightning conductor, most of the lightning current will flow into the ground through the grounding device. If the grounding resistance is too high, the lightning current will generate a very high voltage on the top of the tower, causing the insulator to flash over and cause the line to trip. In recent years, power outages caused by lightning strikes have...
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Grounding resistance of lightning protection for urban rail transit
Dec 02 , 2021
In order to formulate relevant standards for the lightning protection grounding resistance of urban rail transit, it is necessary to further carry out actual measurement research on the grounding resistance of urban rail transit lines, count more test samples, deepen theoretical analysis, and summarize the test methods and test limits requirements for urban rail transit. W...
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Lightning protection to Railway Power Lines
Dec 09 , 2021
To the railway power transmission lines, they are narrow and long, with long distance power supply,bad environment, and frequent accidents, especially in mountainous areas, jungles and river networks, and inconvenient traffic. Once the line fails, it is very difficult to find the fault point and maintain, with high labor intensity and long time to restore power sup...
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Brief introduction to MOV of SPD
Dec 21 , 2021
Metal oxide varistor (MOV) is a semiconductor element with a unique grain boundary structure. Its resistance value decreases sharply with the increase of voltage. It has excellent nonlinear volt-ampere characteristics, as well as high current capacity, the lower residual voltage, no freewheeling and lower cost. That’s why mov has been the first choice to be used in power and signal ports as over-v...
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Is it safe in a car during thunderstorm
Dec 23 , 2021
It's safer to sit in the car during thunder Reminder: all windows should be closed When thunder and lightning strikes, some drivers may have questions like: The car is made of metal. If it is struck by lightning, is it safe to sit in the car? Should you stay in the car or get out of the car to avoid it? It is understood that as a metal shell, the car body is equivalent to a shielded room. Even if ...
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