Novel disconnecting switch on-line monitoring device

By setting auxiliary static contacts and moving contacts on the isolating switch, the voltage drop and temperature signals are read in real time, and analyzed through wireless or optical fiber transmission, the problem of temperature detection lag in the prior art is solved, real-time state detection and early warning of the isolating switch are realized, and the safety of the equipment is improved.

CN222689883UActive Publication Date: 2025-03-28XIAN JINXU ELECTROMECHANICAL EQUIP CO LTD
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Patent Information

Application Number
CN202421091459.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-20
Publication Date
2025-03-28
Estimated Expiration
2034-05-20

AI Technical Summary

Technical Problem

The existing isolating switch status monitoring device is difficult to achieve rapid and real-time status determination through temperature detection, resulting in lag in the heating process of the high-current isolating switch, missing early warning opportunities, and causing equipment failure.

Method used

A new type of online monitoring device for isolating a new type of isolating switch, which is used to set an auxiliary static contact and auxiliary dynamic contact to form a detection probe, and read the overall voltage drop signal and temperature signal in real time, and transmit signals through active wireless transmission or optical fiber transmission, and perform signal analysis and processing to determine the working status of the isolating switch.

Benefits of technology

Real-time status detection of the isolating switch is realized, and judgment and early warning is made in advance, which improves the safety and reliability of the equipment and avoids faults caused by temperature signal lag.

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Abstract

The utility model discloses a novel disconnecting switch on-line monitoring device, which relates to the technical field of on-line monitoring and comprises a single-break disconnecting switch and a double-break disconnecting switch, the single-break disconnecting switch is composed of a disconnecting switch static contact arm and a disconnecting switch moving contact arm, and the top end of the disconnecting switch static contact arm is provided with a disconnecting switch static contact. According to the utility model, the auxiliary static contact fixed on the static contact arm of the disconnecting switch and the auxiliary moving contact fixed on the moving contact arm of the disconnecting switch form a detection probe, so that when the moving contact of the disconnecting switch fixed on the moving contact arm of the disconnecting switch carries out opening and closing operation, the auxiliary static contact is fixed on the moving contact arm of the disconnecting switch; according to the utility model, an overall voltage drop signal and a temperature signal of the disconnecting switch are read, digital quantity conversion is carried out on the signals, signal transmission is carried out in an active wireless transmission or optical fiber transmission mode, and then the signals are analyzed and processed by a wireless receiving control unit or an optical fiber receiving control unit, so that the working state of the disconnecting switch is judged.
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