CT secondary circuit multipoint grounding fault online monitoring system and method
A secondary circuit, multi-point grounding technology, which is applied in the field of CT secondary circuit multi-point ground fault online monitoring system, can solve problems such as difficult management, difficult exposure, and large manpower, so as to reduce adverse effects and time Effect
Inactive Publication Date: 2020-04-03
SHENZHEN POWER SUPPLY BUREAU
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Problems solved by technology
[0002] The CT secondary circuit of the substation monitors, controls, regulates and protects the primary equipment. There may be some hidden dangers in current and voltage in the CT secondary circuit, which are often difficult to expose during normal operation, but in extreme cases it will In case of protection malfunction or refusal to operate, it is necessary to monitor the CT secondary circuit with monitoring equipment. However, the existing monitoring is carried out independently. When the monitoring equipment is installed densely, it is difficult to manage. It is necessary to monitor expensive manpower
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[0030] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. A preferred embodiment of the invention is shown in the drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present invention will be thorough and complete.
[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.
[0032] In the...
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The invention relates to a CT secondary circuit multipoint grounding fault on-line monitoring system and method. The system comprises a plurality of monitoring devices which are electrically connectedwith a CT secondary circuit and are used for detecting the characteristic quantity of the CT secondary circuit, and also comprises a communication interface which is disposed on the monitoring devices and is used for connecting a communication link; and the management device realizes information interaction with each monitoring device in a set range through a communication link and a communication interface, and is used for receiving, storing and centrally monitoring the characteristic quantity detected and collected by the monitoring devices in the set range. According to the invention, networked centralized monitoring of multi-point faults of the CT secondary circuit is realized, the collected characteristic quantity can be stored by collecting the characteristic quantity detected by each monitoring device, the patrol manpower is reduced, the overall management of a plurality of monitoring devices is realized, and the management manpower is also reduced.
Description
technical field [0001] The invention relates to the field of monitoring CT secondary circuits of transformer substations, in particular to an online monitoring system and method for multi-point grounding faults of CT secondary circuits. Background technique [0002] The CT secondary circuit of the substation monitors, controls, regulates and protects the primary equipment. There may be some hidden dangers in current and voltage in the CT secondary circuit, which are often difficult to expose during normal operation, but in extreme cases it will In case of protection malfunction or refusal to operate, it is necessary to monitor the CT secondary circuit with monitoring equipment. However, the existing monitoring is carried out independently. When the monitoring equipment is installed densely, it is difficult to manage. It is necessary to monitor It takes a lot of manpower. Contents of the invention [0003] Based on this, it is necessary to provide a CT secondary circuit mu...
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IPC IPC(8): G01R31/52
Inventor 侯明哲王其林姜云峰章彬汪桢子汪伟王哲李重杭苏宁
Owner SHENZHEN POWER SUPPLY BUREAU