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Why should the meter be equipped with a transformer? This is to avoid burning out the meter and saving money. In terms of saving money, the price of a small current meter with transformer will be lower than that of a large current meter. From the perspective of the safety of the electricity meter...

In the circuit, the circuit breaker acts just as a fuse, but the fuse can only function once, while circuit breakers can be used repeatedly. As long as the current reaches a dangerous level, it can immediately cause an open circuit. the live wire in the circuit is connected to both ends of the sw...

(1) Main advantages of dropout fuse cutout ① Good selectivity. As long as the rated current of the fuse link of the upper and lower level fuse meets the requirements of 1.6:1 overcurrent selection ratio specified in the national standard and IEC standard, which means the rated current of the uppe...

Can be transmitted from person to person. The virus is believed to be transmitted mainly from person to person. Between people in close contact (about 2m). Respiratory droplets produced by an infected person when they cough, sneeze or talk. These drops of water can fall into the mouth or nose of ...

Introduction of Vacuum circuit breaker “Vacuum Circuit Breaker” gets its name because its arc extinguishing medium and the insulation medium of the contact gap after arc extinguishing are both high vacuum; it has the advantages of small size, light weight, suitable for frequent operat...