DC system insulating monitor apparatus with remote alarm and inquiry function

A technology of insulation monitoring device and query function, which is applied in the field of DC system insulation monitoring device, can solve the problem of inability to know DC system faults, etc., and achieves the effect of satisfying unmanned duty, good effect and simple structure
CN1470880AInactive Publication Date: 2004-01-28KUNMING UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
KUNMING UNIV OF SCI & TECH
Publication Date
2004-01-28
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The equipment comprises the industry control computer, the sensor for detecting leakage current, the voltage sensor, the analog sampling module, the electronic switch and the voice card connected to the internal bus. The invention possesses features of simple structure, easy of operation, functions of remote alarming, remote querying and satisfying need of unattended on duty in transformer station. Actual examining the equipment shows good result.
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Description

Technical field:

[0001] The invention relates to a DC system insulation monitoring device with remote alarm and query functions, belonging to the technical field of DC system online monitoring and fault diagnosis. Background technique:

[0002] At present, DC system insulation monitoring devices whose principles are bridge method, AC signal injection method and DC leakage current measurement method are widely used in power plants and substations. However, with the extensive implementation of substation comprehensive automation, substations have gradually realized unmanned duty. The DC system insulation monitoring device composed of the above principles can monitor the insulation drop and give the fault branch, but the operator in the unattended substation cannot know the fault of the DC system. Invention content:

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a DC system insulation monitoring device with remote ...

Claims

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