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Development of Small Circuit Breakers with Selective Protection
2012-06-27
[Development of Small Circuit Breakers with Selective Protection]: Low Voltage Circuit Breakers are mainly used in power supply and distribution networks to distribute electricity and protect power lines and equipment from over-current (including overload and short circuit) hazards. The ideal mode of power supply is that once an overcurrent fault occurs in a certain part of the power supply and distribution network, the circuit breaker at that part trips quickly to remove the fault. And it does not bring harm into the .
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Cautions for operation of high voltage disconnector
2012-06-20
[Notes for operation of high-voltage disconnector]: 1) When mechanical interlocking is difficult due to the long distance between high-voltage disconnector and circuit breaker, the key of high-voltage disconnector can be stored at the circuit breaker or on the control switch handle of the circuit breaker. Only after the circuit breaker is switched off, can the key be taken out and the corresponding disconnector be opened to avoid negative interlocking.
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Types and Principles of Rejection Action of Leakage Circuit Breakers
2011-06-28
[Types and Principles of Rejection Action of Leakage Circuit Breakers]: 1. In TN-C-S system, if the detection circuit is between the PEN line of TN-C section and the L line, the leakage circuit breaker will refuse to operate on the PE line of TN-S section; 2. In TN-S system, because the circuit installer connects the N line to the switch, if the N line is broken..
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Reliability Detection Device for Small Circuit Breakers
2009-11-25
[Small circuit breaker reliability detection device]:1 Introduction Small circuit breaker belongs to protective electrical appliances, which is used to protect the safety of electrical circuits and equipment. When the electrical circuit or electrical equipment occurs load, short circuit and other faults, its tripper should be able to act in time, reliably cut off the circuit; when the electrical circuit or electrical equipment is in normal state, its main contact should be reliable.
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Cautions for Application of Leakage Circuit Breakers and Treatment of Common Faults
2009-07-13
[Cautions for application and common fault treatment of leakage circuit breakers]: The main function of leakage circuit breakers is to provide indirect contact protection, which is often used in low voltage circuits to prevent personal shock and accidents caused by leakage. 1. The common types of leakage circuit breakers are divided into voltage type and current type, while current type is divided into electromagnetic type and electronic type. Voltage leakage
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Design, Development and Production of Small Circuit Breaker Series Accessories
2008-12-16
[Design, development and production of series accessories of small circuit breakers]: Design, development and production of small circuit breaker accessories, shunt trippers, undervoltage trippers, shunt trippers, undervoltage trippers and auxiliary contacts.
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