GIS partial discharge on-line monitoring system and method
A partial discharge and monitoring system technology, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve problems that threaten the safe operation of equipment, aging of insulating materials, power loss, etc., to facilitate implementation and promotion, and reduce operation and maintenance costs , the effect of easy installation
Pending Publication Date: 2021-11-16
华能重庆两江燃机发电有限责任公司
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Problems solved by technology
Due to installation, operation and other reasons, there will be various defects, such as metal protrusions, contamination along the surface, etc. GIS will generate partial discharge during operation, which will cause loss of electric energy, and will accelerate the aging of insulating materials and develop to a certain level. The degree of partial discharge will lead to insulation failure and seriously threaten the safe operation of equipment. Therefore, early detection of partial discharge is very important for the repair and maintenance of GIS equipment
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[0019] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0020] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rat...
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The invention discloses a GIS partial discharge on-line monitoring system and method. The system comprises an ultrasonic partial discharge sensor, an ultrahigh frequency partial discharge sensor and a vibration three-in-one sensor, a data acquisition unit, an intelligent control cabinet IED and a background industrial personal computer. The ultrasonic partial discharge, ultrahigh frequency partial discharge and vibration three-in-one sensor sends a detected ultrasonic partial discharge signal, an ultrahigh frequency partial discharge signal and a vibration signal to the data acquisition unit; the data acquisition unit acquires the signals and sends the signals to the intelligent control cabinet IED for data processing and signal conversion; the intelligent control cabinet IED is in communication connection with the background industrial personal computer and is used for transmitting data subjected to data processing and signal conversion to the background industrial personal computer; and the background industrial personal computer monitors the received data in real time and forms a chart, and analyzes and prejudges the equipment risk, so that the multi-state comprehensive acquisition of the GIS operation state is realized, and the reliability and effectiveness of GIS switch operation state monitoring are greatly improved.
Description
technical field [0001] The invention relates to the technical field of GIS partial discharge monitoring, in particular to a GIS partial discharge online monitoring system and method. Background technique [0002] GIS (Gas Insulated Switchgear, Gas Insulated Switchgear) has the characteristics of small size and high reliability, and has been widely used in power grids in recent years. Due to installation, operation and other reasons, there will be various defects, such as metal protrusions, contamination along the surface, etc. GIS will generate partial discharge during operation, which will cause loss of electric energy, and will accelerate the aging of insulating materials and develop to a certain level. The degree of partial discharge will lead to insulation failure and seriously threaten the safe operation of equipment. Therefore, early detection of partial discharge is very important for the repair and maintenance of GIS equipment. [0003] Partial discharges not only a...
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IPC IPC(8): G01R31/12
CPCG01R31/1227
Inventor 吕健吴昌兵张学华蒋继黎母德军赵思勇邓成承汪从列汪华谷金元
Owner 华能重庆两江燃机发电有限责任公司