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Safety alarm method of high voltage switch maintenance state

A technology of maintenance status and safety warning, applied to alarms, anti-theft alarms, instruments, etc., can solve problems such as hidden dangers of personal accidents, achieve the effect of convenient installation and disassembly of equipment, ensure safe and stable operation, and eliminate hidden dangers of personal accidents

Inactive Publication Date: 2011-02-16
SHANGQIU POWER SUPPLY ELECTRIC POWER OF HENAN
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  • Abstract
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  • Claims
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Problems solved by technology

[0002] At present, most of the outlet switches of 10kV and 35kV voltage levels in substations are trolley-type switches. In the maintenance state, the front cabinet door of the high-voltage switchgear is open, so that the maintenance personnel can carry out the test on the trolley switch. At this time, if the busbar is charged, the isolation baffle of any one of the three phases is not reliably closed, and the maintenance personnel are paralyzed. At any time, it is possible to touch the static contact at any time, because the distance between the three-phase isolation baffle and the static contact of the switch cabinet is relatively close: 10kV is 125mm, 35kV is 300mm, there is a great potential for personal accidents

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Embodiment Construction

[0008] Accompanying drawing is the schematic diagram of the state of use of the method of the present invention, and when the trolley-type switch maintenance pulls out the high-voltage switch cabinet 1 and is in the maintenance state, the infrared emitter 5 and the infrared receiver 3 of the indoor powerful ceiling-mounted wireless four-beam infrared infrared detector are connected Installed on the two side walls 6 and 4 of the high-voltage switchgear 1 respectively. The installation positions of the infrared transmitter 5 and the infrared receiver 3 are relative to the static contact isolation baffle 2 in the high-voltage switchgear 1. 10kV should be 20cm, and 35kV should be At 15cm. The height on both sides is 1m away from the datum plane, that is, the base plane of the switchgear. Adjust the built-in optical sight, and cut off the infrared beam once by hand to see if the voice alarm is normal. After normal, the maintenance personnel can start normal construction. When the b...

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Abstract

The invention relates to a safety alarm method of a high voltage switch maintenance state. In the method, when a trolley type switch is maintained and is in a maintenance state after a high voltage switchgear is pulled out, an infrared emitter and an infrared receiver of an infrared detector of four indoor strong ceiling type wireless infrared wires are respectively installed on two side walls in the high voltage switchgear, and the installation positions of the infrared emitter and the infrared receiver are arranged out of a safety distance relative to a static contact isolation baffle in the high voltage switchgear; a loudspeaker with high decibel is installed at the end of the infrared receiver, a voice alarm 'Danger, be careful!' is input in the loudspeaker, and equipment is convenient to install and disassemble. When a human body enters a warning region by mistake, a voice alarming circuit supplies an alarm voice with high decibel, thereby efficiently avoiding personal accident hidden dangers, enhancing the safety consciousness of maintenance personnel, precontrolling before an accident, eliminating the personal accident hidden dangers and ensuring safe and stable running of a power grid.

Description

technical field [0001] The invention relates to a safety warning method in a high-voltage switch maintenance state in a power system. Background technique [0002] At present, most of the outlet switches of 10kV and 35kV voltage levels in substations are trolley-type switches. In the maintenance state, the front cabinet door of the high-voltage switchgear is open, so that the maintenance personnel can carry out the test on the trolley switch. At this time, if the busbar is charged, the isolation baffle of any one of the three phases is not reliably closed, and the maintenance personnel are paralyzed. At any time, it is possible to touch the static contact at any time, because the distance between the three-phase isolation baffle of the switchgear and the static contact is relatively close: 125mm for 10kV and 300mm for 35kV, there is a great potential for personal accidents. Contents of the invention [0003] In order to avoid the above-mentioned hidden dangers, the presen...

Claims

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Application Information

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IPC IPC(8): G08B13/183
Inventor 吴建辉高世伟李明
Owner SHANGQIU POWER SUPPLY ELECTRIC POWER OF HENAN
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