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Outdoor VCB vacuum circuit breaker maintenance and precautions
1. During the regular maintenance and inspection of outdoor vacuum circuit breaker, the general tasks are: measuring the overtravel and stroke of the circuit breaker; Check the vacuum... moreOutdoor VCB vacuum circuit breaker maintenance and precautions
1. During the regular maintenance and inspection of outdoor vacuum circuit breaker, the general tasks are: measuring the overtravel and stroke of the circuit breaker; Check the vacuum interrupter for air leakage; Check whether the grounding wire of the secondary circuit is loose; Check whether the contact of auxiliary switch is good; Measure the resistance value of each phase main circuit; Remove the dust adsorbed on the conductive part and insulator; Check the fastening bolts for looseness.
#outdoor #vcb #breaker
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The maintenance methods of automatic circuit recloser or routine maintenance of it: how to ensure it is in good working state, clean pipe protection, replace rubber parts regularly and check the main components regularly. These ensure the normal... moreThe maintenance methods of automatic circuit recloser or routine maintenance of it: how to ensure it is in good working state, clean pipe protection, replace rubber parts regularly and check the main components regularly. These ensure the normal operation of outdoor vacuum circuit breakers. In order to keep it in good working condition, the maintenance and management must be strengthened.
#vcb #breaker #maintenance
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Working Principle
Circuit breaker, also known as air switch, automatic circuit recloser. When the working current exceeds the rated current or short circuit and voltage loss occurs, the auto circuit recloser circuit will be automatically cut off.... moreWorking Principle
Circuit breaker, also known as air switch, automatic circuit recloser. When the working current exceeds the rated current or short circuit and voltage loss occurs, the auto circuit recloser circuit will be automatically cut off. Compared with other circuit breakers, VCB vacuum circuit breakers are only different in arc extinguishing medium. There is no conductive medium in a vacuum, which makes the arc extinguish quickly, so the distance between the moving and stationary contacts of the circuit breaker is very small.
#vcb #breaker #working #principle
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