Summary of knowledge on surge protectors shared by Qidian
Date: 2016-03-14Read: 8
1. What is a surge?
Answer: Surge refers to the momentary overvoltage that exceeds the normal operating voltage.
2. What issurge protector？
Answer:surge protectorIt is an electronic device that can conduct shunting in a very short time when there is a sudden surge current or overvoltage in an electrical circuit or communication line due to external interference, thereby avoiding damage to other equipment in the circuit caused by surges.
3Switch typesurge protectorandpressure-limitingsurge protectorThe difference?
Answer:Switch typesurge protectorAs a gap discharge type device, it has a large ability to discharge lightning energy, and its main function on the line is to discharge lightning energy; pressure-limitingsurge protectorAs a zinc oxide varistor device, its lightning energy discharge ability is small, but its overvoltage suppression ability is good. Its main function in the circuit is to limit overvoltage. Therefore, switch type surge protection is generally used at the entrance of buildings to discharge lightning energy, and then voltage limiting type is used in the rear circuitsurge protectorTo limit the high overvoltage generated in the subsequent line due to the discharge of lightning energy from the preceding stage. two kindssurge protectorIt needs to be used in conjunction to ensure the safety of equipment in the distribution line.
4. Is it allsurge protectorAre all fuse devices installed before?
Answer: No. Due to its open circuit damage, switch type modules do not require the installation of miniature circuit breakers or other fuse devices.
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