quenching chamber

Investigation of Hybrid Arc Quenching Chamber in Current Limiting Circuit Breaker

限流断路器的混合式灭弧室的研究

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With a chutes arc quenching chamber, current limiting circuit breaker can lift the arc voltage to a high value through polar voltage drop and limit the short circuit current while interrupting circuit.

它采用多个栅片的灭弧室，利用近极压降将进入到灭弧室中的电弧电压提升到一个较高的值，从而在开断电路的同时还起到对短路电流的限制。

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The ovality and generatrix straightness of combustion chamber case are mainly affected by the technological methods such as lifting way, wilding quality and quenching speed during oil cooling. Special toolings can be used to correct the ovality and generatrix straightness of chamber case.

燃烧室壳体椭圆度及母线直线度主要受吊装方式、壳体焊接质量、油冷时壳体入油速度等工艺方法影响，采取专用工装，可以校正燃烧室壳体椭圆度及母线直线度。

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Based on the idea that the gas flow for arc-quenching in arc extinguishing chamber is a nonboundary-layer-type flow, a new 2-dimensional mathematical model of nozzle arc is presented in this paper and is used to analyze the arc-quenching properties of SF_6/ N_2 gas mixtures.

按非边界层流动来处理断路器灭弧室内的吹弧气流，建立了新型的喷口电弧二维数学模型.并应用其进行了SF6/N2混合气体开断特性分析。

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