[Arc Case] Switch Cabinet Failure "Fire Burning Company" Accident
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Author:hkwa49fa3
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Published time: 2019-07-01
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A 110kV substation caused a 10kV bus fault due to a short circuit of 10kV switch, causing the substation to stop completely and 10kV part of the equipment to be seriously damaged. The installation of arc protection as a busbar rapid protection quickly removed the fault and cannot expand the power outage range.
On November 10, 2004, a 110kV substation caused a 10kV bus failure due to a short circuit of 10kV switch, causing the substation to stop completely and 10kV parts of equipment to be seriously damaged. In order to prevent such accidents and prevent accidents from expanding, it was recommended that the 6kV 1A section busbar arc protection be used as a quick protection for the busbars, so that the fault can be quickly removed without expanding the power outage range.
Arc protection is an ideal solution for medium and low voltage busbar protection of 35KV and below. It has the protection principle of reliable, practical, economical, safe, stable and fast. Arc protection can quickly remove faults, and is much higher than traditional relay protection.
Hangzhou Rizner Electric Co., Ltd. is a professional company specializing in the development, design, production, operation and sales of internationally leading arc protection and power system protection, automation and online monitoring equipment. Professional focus on arc protection for 15 years, is the earliest research and development of arc protection companies in China. It is also one of the three national standards for the protection of arc protection. Innovative solutions for arc protection are widely used in power systems in power plants, power bureaus and large factories and mines around the world. The arc light protection device produced by our company has complete models and is suitable for the wiring mode of various substations, providing rapid protection for medium and low voltage busbars in substations, power plants and industrial enterprises. The arc light protection system adopts the principle of double detection of arc detection and current detection, and has the characteristics of fast protection action and high reliability. When an arc short circuit occurs, it can be quickly positioned, and the arc light protection system can move quickly. The fastest 3 milliseconds in our company can detect the arc and make a judgment, cut off the fault current, and minimize the damage of the arc light to the equipment and personal injury.
