On-line monitoring early-warning device for SPD
A technology for monitoring early warning and predicting value, applied in the field of SPD online monitoring and early warning devices, can solve problems such as failure, protection function failure, temperature rise, etc., and achieve the effect of improving the accuracy of prediction, improving safety and reliability, and improving accuracy
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[0021] Reference figure 1 The SPD online monitoring and early warning device proposed by the present invention includes: an action statistics module, an inrush current sensing module, a voltage sensor, a leakage current sensing module, a temperature acquisition module, a processing module, a storage module, an alarm module and a remote communication module.
[0022] The action statistics module is used to collect the number of lightning weather SPD (Surgeprotection Device, surge protector) actions and the duration of each action. When lightning occurs, SPD can limit the instantaneous overvoltage that penetrates into the power line and signal transmission line within the voltage range that the equipment or system can withstand, or discharge powerful lightning currents into the ground to protect the protected equipment or system from Damaged by impact. SPD will cause wear as the use time increases and the number of actions increases, thereby affecting its lightning protection perf...
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