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Method and system for determining expected life of surge protection device

A technology of surge protector and life expectancy, which is applied in the direction of instruments, measuring electricity, and measuring electrical variables, etc., and can solve problems such as the failure of the product to disengage normally and fire.

Active Publication Date: 2016-07-20
SHANGHAI ASP LIGHTNING PROTECTIVE TECH CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] Recently, with the improvement of safety awareness and technology, SPDs often use passive indication methods such as deterioration indicator windows to indicate products that have been normally separated from the circuit. In this situation, the product may not be able to disengage normally and cause serious failures such as fire.

Method used

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  • Method and system for determining expected life of surge protection device
  • Method and system for determining expected life of surge protection device
  • Method and system for determining expected life of surge protection device

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Embodiment Construction

[0027] The following will combine figure 1 with figure 2 The method for judging the expected life of the surge protector provided by the present invention is described in detail, which is an optional embodiment of the present invention, and it can be considered that those skilled in the art can modify it within the scope of not changing the spirit and content of the present invention and polish.

[0028] The invention provides a method for judging the expected life of a surge protector, comprising the following steps:

[0029] S10: provide SPD unit;

[0030] S20: Monitor the SPD unit in real time, obtain the occurrence of its surge, and obtain the surge energy of each surge;

[0031] In an optional embodiment of the present invention, in the step S20, the real-time monitoring of the SPD unit specifically includes: monitoring and collecting data of at least one of the voltage, current, temperature, capacitance, and impedance of the SPD unit; The collected data is used to c...

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Abstract

The invention provides a method and a system for determining the expected life of a surge protection device. The method includes the following steps: S10: providing a SPD unit; S20: conducting real-time monitoring on the SPD unit and acquiring surge generation conditions of the SPD unit, and obtaining a surge energy of each surge; S30: accumulating and computing accountancy capability of the energy of surges that have been generated and servicing time, referencing the energy sum that can be bore by the SPD unit during the entire working time, and calculating residual service life of the SPD unit.

Description

technical field [0001] The invention relates to a surge protector, in particular to a method for judging the expected life of a surge protector. Background technique [0002] SPD (Surge Protective Device hereinafter referred to as SPD) is a device used to limit transient overvoltage and guide surge current. It not only has the function of lightning protection, but also has the function of suppressing switching overvoltage, so the application field of SPD is very wide. SPD is an indispensable device in lightning protection. Its function is to limit the instantaneous overvoltage that enters the power line and signal transmission line within the voltage range that the equipment or system can withstand, or to leak the strong lightning current into the ground to protect The protected equipment or system is not impacted. [0003] SPDs generally operate online 7*24 hours. Under the action of various line surge voltages, the product will gradually deteriorate, lose its protective ...

Claims

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Application Information

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IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 潘挺张锦旸宋秋平王美光
Owner SHANGHAI ASP LIGHTNING PROTECTIVE TECH CO LTD
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