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A gis bus duct partition maintenance method

A technology of bus bars and conduits, applied in switchgear, electrical components, etc., can solve problems such as social negative impacts and economic losses, expand the scope of urban and rural power outages, and affect the quality of power supply, so as to save power resource costs, save maintenance time, optimize The effect of maintenance methods

Active Publication Date: 2016-03-30
SHANGHAI MUNICIPAL ELECTRIC POWER CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the maintenance of actual power equipment, when encountering the wiring method of double busbars without segmentation, and the gas chambers of several interval busbars are connected, only bellows are installed, when the gas-insulated combined electrical equipment (referred to as GIS) is repaired or overhauled , it is necessary to deactivate the double busbars, which will inevitably cause a power outage in the whole station, and the power outage will last for a long time, which will not only expand the scope of urban and rural power outages, but also affect the quality of power supply, causing huge negative social impact and economic losses
[0003] The GIS equipment maintenance method and the GIS equipment maintenance auxiliary decision-making system with the application number of 201310317847.8 disclose a systematic troubleshooting solution. Information; according to the nameplate information, the state performance information, and the asset information, perform risk assessment on GIS equipment to obtain equipment operation risk assessment results; Perform economic benefit analysis to obtain economic benefit analysis results; determine the maintenance plan for GIS equipment according to the risk assessment results and the economic benefit analysis results; perform GIS equipment maintenance according to the maintenance plan, which can reduce maintenance costs and increase the utilization rate of GIS equipment , to save power resources, but what it proposes is a systematic maintenance analysis plan, and does not propose specific solutions for actual problems

Method used

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  • A gis bus duct partition maintenance method
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050]Firstly, the power equipment in operation is monitored by means of partial discharge monitoring or gas monitoring. After the flashover point is determined in advance according to the comprehensive evaluation, further for the connection bellows, combined with the actual operation section, the comprehensive evaluation is better for all parties. break point (specifically: for multiple corrugated pipes on one bus, according to the setting position of the corrugated pipes and the connection relationship of peripheral auxiliary equipment, such as disconnectors, circuit breakers, etc. Comprehensive evaluation of equipment damage minimization), implement maintenance and isolation operations for this point, specifically: firstly, carry out gas recovery operations for the GIS in the accident section, and secondly, remove the bellows at the breaking point of this section and its surrounding adjacent components (Specifically: connecting conductors and contacts connected to the inside...

Embodiment 2

[0053] Firstly, through the detection and checking of the oscillogram (the oscillogram is the fault oscillogram, which displays the waveforms of the faulty line, busbar and adjacent lines that are electrically connected to the faulty line through the networked system of the oscilloscope), the flash is diagnosed. Then, with the operation of Example 1, the best corrugated pipe breaking point is comprehensively evaluated according to the conditions of all parties, and the maintenance and isolation operation is carried out for this point, specifically: first, the gas recovery operation is carried out for the GIS of the accident section, and secondly, Remove the bellows at the breaking point of this section and its surrounding adjacent parts (specifically: connecting conductors and contacts connected to the inside of the busbar), and secondly, install end assembly and seal on the normal section of the busbar air chamber that is not within the scope of maintenance. Cover, put into op...

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PUM

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Abstract

A GIS bus communication pipe separating overhauling method comprises the steps that when GIS overhaul or GIS fault emergency maintenance is conducted, under the condition that multi-interval bus air chambers are communicated, buses without segmentations are separated artificially so as to avoid power interruption of a user side due to outage of the buses; corrugated pipes among bus communication pipes and connection conductors and contacts inside the bus communication pipes are demounted, and thus the corrugated pipes and buses of the corrugated pipes of the bus air chambers not in an overhaul range are additionally provided with end fittings and close covers under the condition that insulation of GIS air chambers is met; due to the fact that separation operation is conducted on the corrugated pipes among the bus communication pipes, operation of detection and separation on damaged sections caused by bus flashover is completed, and the work of the buses at normal sections is ensured. The GIS bus communication pipe separating overhauling method is applied to GIS overhaul or GIS fault emergency maintenance, the power interruption of the user side due to outage of the buses can be avoided, power failure time can be shortened, overhaul time is saved, and power supply is restored more rapidly; meanwhile, normal operation such as bus changeover can be achieved conveniently, power supply quality is ensured, and power resource cost is saved.

Description

technical field [0001] The invention belongs to the field of electric power maintenance, and in particular relates to a maintenance method for a GIS bus through pipe partition. Background technique [0002] In the maintenance of actual power equipment, when encountering the wiring method of double busbars without segmentation, and the gas chambers of several interval busbars are connected, only bellows are installed, when the gas-insulated combined electrical equipment (referred to as GIS) is repaired or overhauled , it is necessary to deactivate the dual busbars, which will inevitably cause a power outage in the whole station, and the power outage will last for a long time, which will not only expand the scope of power outages in urban and rural areas, but also affect the quality of power supply, causing huge negative social impact and economic losses. [0003] The GIS equipment maintenance method and the GIS equipment maintenance auxiliary decision-making system with the a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02B3/00
Inventor 陆云崔新奇陈刘斌朱亮边石雷
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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