Far-end infrared heating device of SF6 circuit breaker

Abstract

The invention provides a far-end infrared heating device of an SF6 circuit breaker. The far-end infrared heating device can solve the problem that after a heater is additionally arranged at the bottom part of the circuit breaker, the temperature of gas in a far-end gas chamber of a pole of the circuit breaker cannot be effectively and rapidly increased. The far-end infrared heating device is installed at the top end of the circuit breaker, and is composed of an infrared heating device with a carbon-silicon base as the inner wall of a base material, a resistance alloy wire connected in series in the infrared heating device, and an energy taking device additionally installed on a high-voltage bus, as shown in the figure. The inner surface of the top part of the pole is coated with a far infrared radiation material, and the back of the pole is made of a thermal insulation material and a metal sheet. The far-end infrared heating device has the advantages of simplicity and convenience in installation, high heating speed, convenience in maintenance, good product performance, safety and rapidness.

Description

technical field [0001] The invention patent provides a SF 6 Remote infrared heating for circuit breakers. Background technique [0002] The climate in the alpine region is cold, and the lowest temperature in some areas in winter is very low, and some areas can even drop below -50°C. At extreme low temperatures, SF 6 Partial liquefaction of gas will make SF 6 SF inside the circuit breaker 6 Gas density decreases, while SF 6 The excellent electrical properties of the gas are realized under certain pressure and density conditions, so the temperature is too low will lead to the liquefaction of SF6 gas, making SF 6 The breaking performance and insulation capacity of the circuit breaker are reduced. [0003] To guarantee SF 6 Many scholars and manufacturers at home and abroad have done relevant tests on the safe and reliable operation of circuit breakers in alpine regions. At present, the more common methods are: 1. Reduce SF 6 The operating pressure of the gas; 2. Use oth...

AI Technical Summary

Problems solved by technology

At the same time, the current existing heating methods generally directly heat the tank body of the circuit breaker and the bottom of the porcelain column. Although this heating method is simple and feasible, it is difficult to Inability to conduct heat to SF 6 In the arc extinguishing chamber, this method cannot effectively increase the SF in the alpine region 6 Gas temperature in the arc extinguishing chamber

Therefore, on the premise of installing a heating device at the bottom, an infrared heating device can be installed at the far end of the circuit breaker in order to solve the problem of SF 6 The problem that the temperature at the remote end of the circuit breaker cannot be effectively increased

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