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  • It refers to household purposes: to protect civil lighting distribution system or circuit breaker. The capacity of lighting circuits are generally not large, usually used as a molded case circuit breaker protection means mainly used to control lighting circuits under normal conditions and breaking, a...
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  • Selection of a vacuum circuit breaker, generally the following aspects should be considered: (1) place frequent operation. Should be preferred vacuum circuit breaker for switching a capacitor bank, control the high voltage of the motor, the control and protection of electric transformers, electric tr...
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  • I would grade trip summarizes the analysis of the causes of the following reasons for your reference study. The first case: the main switching points less than the sum of the load switch. Second case: the main switch has no sub-switch leakage protection device, with the electrical leakage when the ma...
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  • (1) induction heating, the original is placed on the body of the tank, the outer tank passing a current through the coil is wound, the use of eddy current heating tank skin to dry. Article tank wall may be a plurality of pads asbestos, asbestos wire is wound on the strip. Induction heating power requ...
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  • Breaker interrupter way roughly divided into two ways. 1. Formula horizontal arc blow. With horizontal blowing interrupter switch, when opening the movable, stationary arcing contacts separate, the heat of vaporization and decomposition of the oil. The pressure in the arc chamber rapidly increases, w...
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