Protective device and method for high voltage area of electric power test
A high-voltage area, power test technology, applied in the power field, can solve the problems of poor applicability, existence, and lack of three-dimensional protection in the square high-voltage protection area, and achieve the effect of improving reliability and sensitivity
Active Publication Date: 2019-12-03
STATE GRID CORP OF CHINA +1
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Problems solved by technology
However, the square high-voltage protection area surrounded by the infrared fence in the above-mentioned patent has poor applicability in actual use. For example, when the high-voltage protection area needs to be set as a circular area, the infrared fence structure in the above-mentioned patent cannot meet the demand. In addition , the red perimeter fence mentioned in the above patent only exists at the boundary of the high-voltage protection area, and does not realize three-dimensional protection. If people illegally intrude into the rear boundary, if the alarm and power failure are not timely, it will cause immeasurable consequences. Therefore, it is necessary to design a A device to realize the three-dimensional protection of the high voltage area of the electric power test
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[0019] The specific embodiments of the present invention will be further specifically described below through specific embodiments in conjunction with the accompanying drawings.
[0020] figure 1 It is a structural schematic diagram of a fence device for a protective device in a high-voltage area of an electric power test. The fence device 7 includes a column housing 4, a wireless unit 5, a processor unit, a signal light emitting unit and a signal light receiving unit. Two sliding belts 3 are provided, each of which is provided with a signal light emitting port 1 and a signal light receiving port 2 that can slide freely in the belt, and when two fence devices 7 form a virtual fence, the upper sliding belt 3 The signal light emitting port 1 and the signal light receiving port 2 are at the same height and form a signal light virtual fence, and the signal light emitting port 1 and the signal light receiving port 2 in the lower sliding belt 3 are at the same height and form a si...
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The invention discloses a protection device used for a high-voltage region of an electric power test. The device comprises a master control device and a plurality of fence devices, each fence device comprises a cylinder housing, a signal light emission unit and a signal light reception unit, a cylinder body of the cylindrical housing is distributed with a plurality of sliding belts around the cylinder body from top to bottom, the sliding belts are circumferential belts with belt-shaped slots on the cylinder body of the cylindrical housing, signal light emission ports and signal light receptionports are distributed in the slots, and the signal light emission ports and the signal light reception ports are both matched with the slots and slide in the belt-shaped slots. The substantial effects of the device are that the fence devices whose cylindrical housings are distributed with the plurality of sliding belts from top to bottom are adopted, and the signal light emission ports and the emission light reception ports are arranged in the sliding belts so that stereoscopic high-voltage test protection regions of different heights are formed; besides, a long-period optical fiber grating is adopted as a pressure detection device of a sensor so that the reliability and the sensitivity of the protection device of the electric power test region can be improved.
Description
technical field [0001] The invention relates to the field of electric power technology, in particular to a protection device and method for high-voltage areas of electric power tests. Background technique [0002] The operation and maintenance personnel of power transmission and transformation equipment should conduct high voltage tests such as withstand voltage or partial discharge on equipment and cables on a regular basis. During the test process, high voltages such as 42Kv and 95kV will be generated. Personal injury, the tester may enter the test area without cutting off the test power supply due to equipment discharge flickering, changing wiring, changing equipment status, etc. during the test, which may cause personal injury to the tester. The fence has retractable belts or wire ropes. Since the alarm and automatic power-off cannot be performed, relevant personnel may stray into the live high-voltage test area, causing major safety accidents and loss of life and proper...
Claims
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IPC IPC(8): H02H5/12H02H1/00
CPCH02H1/0007H02H5/12
Inventor 周刚陈刚傅进茆超冯耀轩刘强强申志成徐浩殷军汤金兴
Owner STATE GRID CORP OF CHINA