On-line monitoring method and device for insulating state of power cable
A technology of insulation status and power cables, applied in the direction of testing dielectric strength, etc., can solve problems such as unsolvable grounding methods and DC signal loading, limited to well-shielded laboratories, and unsuitable for high-voltage power systems
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0015] In the present invention, the current sensor is set on the grounding wire of the cable, and the current transformer converts the current signal into a voltage signal by connecting a small resistance, and is connected to a filter amplifier circuit. The circuit filters out the required low-frequency current and voltage signals, amplifies them by a certain factor, and then sends them to the A / D converter. The microcomputer control module then sends the current and voltage digital signals obtained from the A / D converter to the GSM / GPRS data transmission module ( DTU), GSM / GPRS DTU sends the current signal, voltage signal and line number to the GSM / GPRS DTU in the monitoring room, and the GSM / GPRS DTU in the monitoring room finally transmits the signal to the monitoring host through the serial port. After the monitoring host receives the current and line number information of each cable, it first stores it in the database and displays it, and then analyzes and judges the info...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com