CN103308799B - The Apparatus and method for that a kind of cable-line parameter be connected with GIS is measured - Google Patents

The Apparatus and method for that a kind of cable-line parameter be connected with GIS is measured Download PDF

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Publication number
CN103308799B
CN103308799B CN201310211200.7A CN201310211200A CN103308799B CN 103308799 B CN103308799 B CN 103308799B CN 201310211200 A CN201310211200 A CN 201310211200A CN 103308799 B CN103308799 B CN 103308799B
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China
Prior art keywords
line
cable
gis
fastening bolt
grounding
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CN201310211200.7A
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CN103308799A (en
Inventor
王伟
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State Grid Corp of China SGCC
Tianjin Electric Power Corp
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State Grid Corp of China SGCC
Tianjin Electric Power Corp
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Priority to CN201310211200.7A priority Critical patent/CN103308799B/en
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Abstract

The present invention relates to the equipment that a kind of cable-line parameter be connected with GIS is measured, comprise GIS, in this GIS, be provided with bus, line side disconnector, line-to-ground switch, cable line, insulating part, grounding switch guide rod and fastening bolt.In the present invention, utilize the existing circuit of GIS, first grounding copper bar is pulled down, then by fastening bolt, three-phase measurement circuit is installed, close line-to-ground switch, testing apparatus and cable line is made to form path, starting outfit carries out the measurement of cable-line parameter, after measurement completes, pull down three measurement circuits, reinstall grounding copper bar, solve the cable line connected with GIS cannot contact current-carrying part problem from outside, whole process operation is easy, safe and reliable, is applicable to use in site test.

Description

The Apparatus and method for that a kind of cable-line parameter be connected with GIS is measured
Technical field
The invention belongs to the cable-line parameter field of measuring technique that GIS connects, the Apparatus and method for that especially a kind of cable-line parameter be connected with GIS is measured.
Background technology
GIS is the abbreviation of GasInsulatedmetal-enclosedSwitchgear; be meant to gas-insulated metal enclosed switchgear; it is various control and protection electrical equipment; as isolating switch, disconnector, grounding switch, mutual inductor, lightning arrester and connection bus etc. are all encapsulated in the metal shell of ground connection; in housing, the gas of filling certain pressure is as insulation alternate and over the ground, and it has, and floor area is little, security performance is high, little, the multinomial feature such as installation and maintenance are convenient affected by environment.
The GIS of said structure is widely used in ultra-high-tension power transmission line; before these ultra-high-tension power transmission lines put into operation; various power frequency parameter value should be tested; as positive order parameter, Zero sequence parameter etc.; the result measured is as computing system short-circuit current, relay protection setting, the distribution of reckoning trend and the important evidence selecting the work such as the reasonable method of operation; the form of cable terminal is all adopted when this GIS is connected with cable line; connect safety and firmness; but cannot, at the current-carrying part of GIS external contact cable line, be that parameter measurement test cannot normally be carried out.
Summary of the invention
The equipment that the cable-line parameter the object of the invention is to overcome the deficiencies in the prior art, provide easy and simple to handle, utilizing a kind of of equipment wiring to be connected with GIS is measured.
The technical scheme that the present invention takes is:
The equipment that a kind of cable-line parameter be connected with GIS is measured, it is characterized in that: comprise GIS, bus is provided with in this GIS, line side disconnector, line-to-ground switch, cable line, insulating part, grounding switch guide rod and fastening bolt, line side disconnector is arranged on the branch road that bus is connected with cable line, one end of line-to-ground switch is connected in parallel between line side disconnector and cable line, grounding switch guide rod in line-to-ground switch to connect on GIS housing fill the fastening bolt installed in insulating part, this fastening bolt is by three-phase measurement circuit connecting test equipment.
Another object of the present invention is to provide a kind of method that cable-line parameter be connected with GIS is measured, comprise GIS, bus is provided with in this GIS, line side disconnector, line-to-ground switch, cable line, insulating part, grounding switch guide rod and fastening bolt, line side disconnector is arranged on the branch road that bus is connected with cable line, one end of line-to-ground switch is connected in parallel between line side disconnector and cable line, grounding switch guide rod in line-to-ground switch to connect on GIS housing fill the fastening bolt installed in insulating part, the outer rim that this fastening bolt is positioned at GIS outside is set with grounding copper bar, it is characterized in that: comprise the following steps:
(1) break line trackside disconnector, makes cable line and bus isolate;
(2) open-circuit line grounding switch, when preventing next step from removing grounding copper bar, line influence voltage jeopardizes personal safety;
(3) back out fastening bolt, grounding copper bar is pulled down, reconnect fastening bolt, three-phase measurement circuit is connected respectively on corresponding fastening bolt;
(4) close line-to-ground switch, and three-phase measurement circuit is communicated with cable line, starts the measurement that testing apparatus carries out cable-line parameter;
(5), after (4) step completes, open-circuit line grounding switch, pulls down three-phase measurement circuit;
(6) back out fastening bolt, grounding copper bar is put well, again tighten the measurement that namely fastening bolt completes cable-line parameter.
Advantage of the present invention and good effect are:
In the present invention, utilize the existing circuit of GIS, first grounding copper bar is pulled down, then by fastening bolt, three-phase measurement circuit is installed, close line-to-ground switch, testing apparatus and cable line is made to form path, starting outfit carries out the measurement of cable-line parameter, after measurement completes, pull down three measurement circuits, reinstall grounding copper bar, solve the cable line connected with GIS cannot contact current-carrying part problem from outside, whole process operation is easy, safe and reliable, is applicable to use in site test.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of GIS grounded part in prior art.
Embodiment
Below in conjunction with embodiment, the present invention is further described, and following embodiment is illustrative, is not determinate, can not limit protection scope of the present invention with following embodiment.
A kind of method that cable-line parameter be connected with GIS is measured, as Fig. 1, shown in 2, comprise GIS, bus 1 is provided with in this GIS, line side disconnector 6, line-to-ground switch 7, cable line 10, insulating part 9, grounding switch guide rod 8 and fastening bolt 11, bus bar side disconnector 2 connecting breaker 4 and line side disconnector 6 successively in parallel on bus, this line side disconnector connects cable line to be tested, isolating switch bus side joint ground switch 3 ground connection in parallel between bus bar side disconnector and isolating switch, isolating switch line side grounding switch 5 ground connection in parallel between isolating switch and line side disconnector, the line-to-ground switch ground connection of the parallel connection between line side disconnector and cable line, grounding switch guide rod in this line-to-ground switch to connect on GIS housing 12 fill the fastening bolt installed in insulating part, the outer rim that this fastening bolt is positioned at GIS outside is set with grounding copper bar 15, innovation of the present invention is: comprise the following steps:
(1) break line trackside disconnector, makes cable line and bus isolate;
(2) open-circuit line grounding switch, when preventing next step from removing grounding copper bar, line influence voltage jeopardizes personal safety;
(3) back out fastening bolt, grounding copper bar is pulled down, reconnect fastening bolt, three-phase measurement circuit 13 is connected respectively on corresponding fastening bolt;
(4) close line-to-ground switch, testing apparatus is communicated with cable line by three-phase measurement circuit, starts the measurement that testing apparatus 14 carries out cable-line parameter;
(5), after (4) step completes, open-circuit line grounding switch, pulls down three-phase measurement circuit;
(6) back out fastening bolt, grounding copper bar is put well, again tighten the measurement that namely fastening bolt completes cable-line parameter.
In the present invention, utilize the existing circuit of GIS, first grounding copper bar is pulled down, then by fastening bolt, three-phase measurement circuit is installed, close line-to-ground switch, testing apparatus and cable line is made to form path, starting outfit carries out the measurement of cable-line parameter, after measurement completes, pull down three measurement circuits, reinstall grounding copper bar, solve the cable line connected with GIS cannot contact current-carrying part problem from outside, whole process operation is easy, safe and reliable, is applicable to use in site test.

Claims (1)

1. the method measured of the cable-line parameter be connected with GIS, it is characterized in that: comprise GIS, bus is provided with in this GIS, line side disconnector, line-to-ground switch, cable line, insulating part, grounding switch guide rod and fastening bolt, line side disconnector is arranged on the branch road that bus is connected with cable line, one end of line-to-ground switch is connected in parallel between line side disconnector and cable line, grounding switch guide rod in line-to-ground switch to connect on GIS housing fill the fastening bolt installed in insulating part, this fastening bolt is by three-phase measurement circuit connecting test equipment,
The method comprises the following steps:
(1) break line trackside disconnector, makes cable line and bus isolate;
(2) open-circuit line grounding switch, when preventing next step from removing grounding copper bar, line influence voltage jeopardizes personal safety;
(3) back out fastening bolt, grounding copper bar is pulled down, reconnect fastening bolt, three-phase measurement circuit is connected respectively on corresponding fastening bolt;
(4) close line-to-ground switch, and three-phase measurement circuit is communicated with cable line, starts the measurement that testing apparatus carries out cable-line parameter;
(5), after (4) step completes, open-circuit line grounding switch, pulls down three-phase measurement circuit;
(6) back out fastening bolt, grounding copper bar is put well, again tighten the measurement that namely fastening bolt completes cable-line parameter.
CN201310211200.7A 2013-05-31 2013-05-31 The Apparatus and method for that a kind of cable-line parameter be connected with GIS is measured Active CN103308799B (en)

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CN201310211200.7A CN103308799B (en) 2013-05-31 2013-05-31 The Apparatus and method for that a kind of cable-line parameter be connected with GIS is measured

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CN103308799B true CN103308799B (en) 2015-12-23

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DE102017215135A1 (en) * 2017-08-30 2019-02-28 Siemens Mobility GmbH Method and device for checking a contacting of a pantograph

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101368995A (en) * 2008-08-29 2009-02-18 齐齐哈尔电业局 Non-head dismantling test method for GIS combined electrical apparatus and plug-pull type transformer
CN201886101U (en) * 2010-12-22 2011-06-29 江苏省电力公司无锡供电公司 Tester for cable geographic information system (GIS) terminal
CN102445643A (en) * 2011-09-30 2012-05-09 云南电力试验研究院(集团)有限公司 GIS (Gas Insulated Switchgear) test platform capable of adjusting electrode structure
CN102879708A (en) * 2012-09-21 2013-01-16 西安供电局 Quick polarity testing method of 110kV gas insulated switchgear (GIS) of transformer substation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101368995A (en) * 2008-08-29 2009-02-18 齐齐哈尔电业局 Non-head dismantling test method for GIS combined electrical apparatus and plug-pull type transformer
CN201886101U (en) * 2010-12-22 2011-06-29 江苏省电力公司无锡供电公司 Tester for cable geographic information system (GIS) terminal
CN102445643A (en) * 2011-09-30 2012-05-09 云南电力试验研究院(集团)有限公司 GIS (Gas Insulated Switchgear) test platform capable of adjusting electrode structure
CN102879708A (en) * 2012-09-21 2013-01-16 西安供电局 Quick polarity testing method of 110kV gas insulated switchgear (GIS) of transformer substation

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
GIS出线套管下部连接螺栓发热分析与处理;骆桂英 等;《浙江电力》;20081231(第6期);第71-72、76页 *

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