Email Us

Difference Between Surge Protector and Backup Protector

The special protection device for low-voltage surge protector (SSD) is an external disengagement device of the surge protector used in the low-voltage power supply system, which can withstand the expected surge current at the installation of the standby surge protector and the power frequency overcurrent caused by the failure of the surge protector, and has the characteristics of power frequency small current action.


1. Surge protector against lightning and surge backup protector can be distinguished in function according to the specification


The function of spd for lightning protection is to limit transient overvoltage. It is generally connected in parallel on the main circuit and has the property of high impedance. When TOV occurs in the circuit, it will conduct and discharge the surge current. At this time, it is the conduction mode and can be regarded as a directly grounded conductor, which can discharge the surge current in the main circuit to the grounding wire.


While the surge backup protector cannot be used alone, it must be connected in series with the surge protector against lightning and connected to the front of the SPD surge protector, which usually will not affect the normal working capacity of the surge protector against lightning, but will be quickly broken when the power frequency short-circuit current appears in the line.


2.Difference between surge protector and backup protector


There are great differences between antenna surge protector and backup protector. Surge protector is used to protect the electrical safety of the main circuit and prevent lightning current from damaging the protected electrical facilities. The backup protector is a backup protection device used to protect the surge protector from being damaged by power frequency short-circuit current and protect the surge protector from heating and fire. The backup surge protector can not cut off the power frequency short circuit protection in the power frequency surge protector itself. Therefore, both of them are very important. At the same time, neither of them can replace each other. The lightning protection measures in electrical equipment need the mutual cooperation of surge protector and backup protector.

Related News

  • Circuit Design of Signal Surge ProtectorCircuit Design of Signal Surge ProtectorSeptember 22, 2022Signal surge protector (SPD) can be divided into telephone signal surge protector, network signal surge protector, control signal surge protector, high-power broadcast signal surge protector, and moni...view
  • The Difference Between Surge Protector and Leakage ProtectorThe Difference Between Surge Protector and Leakage ProtectorOctober 25, 20211. The introduction of lightning surge protector and leakage protector(1) Lightning surge protectorLightning surge protector, also called lightning protection device, is an electronic equipment which ...view
  • How do SPDs work?How do SPDs work?March 3, 2023SPD stands for Surge Protective Device, which is a device that is designed to protect electrical and electronic equipment from voltage surges and transients. Here is a brief explanation of how SPDs wo...view
  • The Surge Protector Will Be Effective 100%?The Surge Protector Will Be Effective 100%?November 28, 2023No surge protector can provide 100% protection against all possible electrical surges or power-related issues. Surge protectors are designed to limit the voltage supplied to an electrical device by ei...view
  • The Difference Between Surge Protector and Miniature Circuit BreakerThe Difference Between Surge Protector and Miniature Circuit BreakerJune 20, 20221. Surge protectorSurge protector, also known as lightning protector, is a protection device designed to prevent various electronic equipment, instruments, and communication lines from being subjected...view
  • A Lightning Surge Protection Plan Required for Petrochemical ProjectsA Lightning Surge Protection Plan Required for Petrochemical ProjectsNovember 28, 2023Implementing a lightning surge protection plan is crucial for petrochemical projects to safeguard critical infrastructure, equipment, and personnel. Lightning poses a significant risk to facilities, e...view

Related Techwin Products

contact
Contact Us
We use cookies to offer you a better browsing experience, analyze site traffic and personalize content. By using this site, you agree to our use of cookies. Privacy Policy
Reject Accept