Isolated insulation detection method

Abstract

The invention discloses an isolated insulation detection method, which comprises an isolated insulation detection system. The isolated insulation detection system comprises a switching power supply, an auxiliary power supply, an insulation detection part, an isolation part, a filtering part, an MCU, a relay and a communication part, wherein an output end phase line and a PE end in the IT power supply system are connected to the two ends of the insulation detection circuit respectively, the two ends of the insulation detection circuit are each connected with a resistor in series, the auxiliarypower supply circuit outputs a stable low-voltage alternating-current voltage to the insulation detection circuit, an originally-detected current is induced to a secondary end through the electromagnetic induction device, and isolation of strong current and weak current signals is realized. The method has the advantages that in the safety power utilization IT power supply system using the method,after any phase line in the IT power supply system is short-circuited to the ground, the insulation resistance value of the output line to the ground line can be detected, and strong electric signalsand weak electric signals can be isolated.

Description

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AI Technical Summary

Benefits of technology

This patented technology helps prevent damage caused by voltage interruptions during safety critical applications like emergency lights or fire hydrants. It detects when there may have problems connecting two lines due to poor quality wires that could cause overvoltage conditions. If this happens, it sends out warning messages to help people quickly identify issues before they become too dangerous again. Additionally, its ability allows users to remotely operate equipment from their computers without being threatened if someone tries to connect wrong cables. Overall, these technical features improve overall reliability and security measures against potential hazards such as fires or explosions.

Problems solved by technology

This patented technical problem addressed in this patents relates to ensuring that no dangerous electrical shocks occur when there're two wires connected together at different points along their length due to accidental contacting during maintenance work.

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