Power electric transformer is a static electrical equipment, is used to a certain value of the AC voltage (current) becomes the same frequency as the other one or more different voltage values (current) device.
2013年9月10日星期二
The most widely used low-voltage electrical
Can be achieved without breaking the arc of the new AC contactor. Contactor is considered a long work system, use one of the most widely used low-voltage electrical appliances, but the general contactor its
air circuit breaker system (dynamic and static contact and arc chute, etc.) are present conventional design can not be
mcb circuit breaker . Its contacts in the circuit breaking current, will inevitably produce an arc, while the AC contactor electrical life of reason is far less than its mechanical life,
electric meter the process of breaking arc presence in, no arc breaking aspect also in the past, a lot of research in this area, the same as reliability, cost, program complexity and other reasons, molding products on the market is also rare.
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