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High voltage metering cabinet voltage loss alarm device

A technology of high-voltage metering and alarming devices, which is applied in measuring devices, measuring electrical variables, measuring current/voltage, etc., and can solve problems such as failure to detect voltage transformer loss

Pending Publication Date: 2018-09-04
STATE GRID CORP OF CHINA +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a pressure loss alarm device for a high-voltage metering cabinet, which solves the problem that the voltage loss of the voltage transformer in the high-voltage metering cabinet cannot be detected in the prior art

Method used

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  • High voltage metering cabinet voltage loss alarm device
  • High voltage metering cabinet voltage loss alarm device
  • High voltage metering cabinet voltage loss alarm device

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Embodiment Construction

[0024] In order to make the technical means, creative features, goals and functions achieved by the present invention clearer and easier to understand, the present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments:

[0025] Such as figure 1 as well as figure 2 As shown, the present invention proposes a pressure loss alarm device for a high-voltage metering cabinet, including:

[0026] Transformer assembly, which includes the first transformer KB1 (changing 100v to 220v to meet the working requirements of the intermediate relay), the second transformer KB2 and the third transformer KB3, the first input end of the first transformer KB1 and the third transformer KB3 The first input terminals of the high-voltage metering cabinet are connected to the A-phase output terminal A650 of the voltage transformer assembly of the high-voltage metering cabinet, and the first input terminals of the first transformer KB1 and the...

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Abstract

The invention provides a high voltage metering cabinet voltage loss alarm device which comprises a transformer assembly. The transformer assembly comprises a first transformer, a second transformer and a third transformer. The first input end of the first transformer and the first input end of the third transformer are connected with the A-phase output end of a voltage transformer assembly of a high voltage metering cabinet. The first input end of the first transformer and the first input end of the second transformer are connected with the B-phase output end of the voltage transformer assembly of the high voltage metering cabinet. The second input end of the second transformer and the second input end of the third transformer are connected with the C-phase output of the voltage transformer assembly of the high voltage metering cabinet. The high voltage metering cabinet voltage loss alarm device solves the problem that voltage loss of the voltage transformer in the high voltage metering cabinet cannot be detected in the prior art.

Description

technical field [0001] The invention relates to a high-voltage metering cabinet, in particular to a pressure loss alarm device for a high-voltage metering cabinet. Background technique [0002] The Chinese patent discloses a real-time on-line monitoring device for measurement errors of high-voltage voltage transformers with the application number CN200720128155.9, which belongs to the technical field of high-voltage detection and measurement. The second is the real-time online monitoring under the condition of high voltage and strong electricity for a long time; the monitoring device includes a high-voltage voltage transformer measurement mechanism, and also carries the detected high-voltage voltage transformer secondary side voltage and The accessory or / and extension of the current information can collect the monitored voltage and current value to its device by wired transmission or / and wireless transmission. The ratio of the two values ​​is the secondary load value of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R19/155
CPCG01R19/155
Inventor 马文武李杨廖巨成张玉荣杨建伟林幼川李伟向椿袁仲才张帆戚家浩文傲然许亮杨祖彬叶红邓明彭静
Owner STATE GRID CORP OF CHINA
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