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System for monitoring ring network cabinet online

A technology for monitoring rings and network cabinets, which is applied in the system field of online monitoring of ring network cabinets, can solve the problems of complex monitoring structure and inconvenient operation, and achieve the effects of reliable operation, elimination of hidden dangers in operation, and elimination of equipment defects.

Inactive Publication Date: 2018-11-13
苏州树云网络科技有限公司
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  • Abstract
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Problems solved by technology

However, the existing monitoring structure is complex and inconvenient to operate, so a device for monitoring partial discharge of gas insulated transmission lines with simple structure and easy operation is needed

Method used

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  • System for monitoring ring network cabinet online

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Embodiment Construction

[0016] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0017] Such as figure 1 As shown, a system for online monitoring of ring network cabinets includes ultra-high frequency sensors, vibration sensors, sound measurement modules, signal processing modules, signal transmission modules and monitoring terminals. The sound measurement module includes ultrasonic sensors connected in sequence, front amplifier circuit, band-pass filter circuit, logarithmic amplifier circuit, peak detection circuit and analog-to-digital conversion circuit, among them,

[0018] The ultra-high frequency sensor, the vibration sensor and the sound measurement module are arranged in the cabinet, the ultra-high frequency sensor, the vibration sensor, and the analog-to-digital conversion circuit are respectively connected to the signal processing module, the signal processing module is connected to the signal transmission module, and...

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Abstract

The invention discloses a system for monitoring a ring network cabinet online, which comprises an ultra-high frequency sensor, a vibration sensor, a sound measurement module, a signal processing module, a signal transmission module and a monitoring terminal, wherein the sound measurement module includes an ultrasonic sensor, a pre-amplification circuit, a band-pass filtering circuit, a logarithmicamplifying circuit, a peak detection circuit and an analog-to-digital conversion circuit which are sequentially connected, the ultra-high frequency sensor, the vibration sensor and the sound measurement module are arranged in the cabinet body, the ultra-high frequency sensor, the vibration sensor and the analog-to-digital conversion circuit are connected with the signal processing module, the signal processing module is connected with the signal transmission module, and the signal transmission module is connected with the monitoring terminal. The system can effectively discover equipment surface corona and partial discharge defects inside a dielectric in the cabinet, thereby effectively eliminating hidden dangers of the equipment operation.

Description

technical field [0001] The invention relates to the technical field of live partial discharge detection of ring network cabinets, in particular to a system for online monitoring of ring network cabinets. Background technique [0002] At present, metal-enclosed switchgear is widely used in substations and large-scale users, and its operation safety directly affects the reliability of the power supply of the entire substation. Therefore, the monitoring, prediction and reasonable maintenance of the operating status of the switchgear are the key to ensure the safe operation of the switchgear. Before the switchgear fails, there will be a discharge phenomenon during the accident incubation period, so the relevant information of the insulation hazard can be obtained through the detection of the discharge; the discharge inside the 10kV switchgear mainly includes surface discharge, internal discharge, corona discharge, etc.; During the process, energy is mainly released in the form ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12
CPCG01R31/12G01R31/1209
Inventor 侯光军
Owner 苏州树云网络科技有限公司
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