KR101758636B1 - Protection Cover for Carrying Gas Insulated Switchgear - Google Patents

Protection Cover for Carrying Gas Insulated Switchgear Download PDF

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Publication number
KR101758636B1
KR101758636B1 KR1020150178373A KR20150178373A KR101758636B1 KR 101758636 B1 KR101758636 B1 KR 101758636B1 KR 1020150178373 A KR1020150178373 A KR 1020150178373A KR 20150178373 A KR20150178373 A KR 20150178373A KR 101758636 B1 KR101758636 B1 KR 101758636B1
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KR
South Korea
Prior art keywords
gas
insulated switchgear
reinforcing ribs
protective cover
lower side
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Application number
KR1020150178373A
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Korean (ko)
Other versions
KR20170070621A (en
Inventor
정규호
임동락
Original Assignee
주식회사 우성플라텍
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Priority to KR1020150178373A priority Critical patent/KR101758636B1/en
Publication of KR20170070621A publication Critical patent/KR20170070621A/en
Application granted granted Critical
Publication of KR101758636B1 publication Critical patent/KR101758636B1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D59/00—Plugs, sleeves, caps, or like rigid or semi-rigid elements for protecting parts of articles or for bundling articles, e.g. protectors for screw-threads, end caps for tubes or for bundling rod-shaped articles
    • B65D59/06—Caps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Installation Of Bus-Bars (AREA)

Abstract

The present invention relates to a protective cover for a gas insulated switchgear for protecting an internal conductor line of an insulated spacer assembly while transporting a gas insulated switchgear device and preventing foreign substances or moisture from entering the device and preventing breakage due to impact And more particularly to a method for sealing an insulating spacer assembly of a gas insulated switchgear device by inserting an insulated gas into the insulator and sealing it with a protective cover for transportation in order to protect an inner conductor line during transportation of the insulated spacer assembly, It is possible to prevent outflow of gas and further improve the withstand pressure performance of the internal insulating gas when filling the internal insulating gas by changing the structural shape of the conventional transportation protective cover, thereby preventing the gas explosion, etc., Explosion due to overcharging of the gas can be prevented, and the ratio of the debris of the protective cover That was about the gas-insulated switchgear device for transporting protective cover to prevent accidents in advance minimized,
The protective cover for transporting a gas insulated switchgear according to the present invention is a gas insulated switchgear used for protecting an internal conductor line 120 during transportation of an insulated spacer assembly 110 of a gas insulated switchgear (GIS) The protective cover for transportation has a conical shape in which an empty space portion 11 is formed and a flat portion is provided on an upper side. A plurality of rigid reinforcing end face surfaces 13 are formed at a position spaced apart from the lower side of the planar portion by a predetermined distance. A body portion 10 formed on the base body 10; A base frame 20 provided at a circular rim of a predetermined width along a lower outer circumferential surface of the body portion 10 and detachably coupled to an end surface of the insulating spacer assembly 110 of the gas insulated switchgear; A plurality of first reinforcing ribs (30) protruding with a predetermined length along outer peripheral surfaces of the end portions of the planar portion and the plurality of rigid reinforcing end face (13); The first reinforcing ribs 30 are disposed between the base frame 20 and the first reinforcing ribs 30 located at the lower side and between the first reinforcing ribs 30 at positions spaced apart from each other by a predetermined distance along the outer peripheral surface of the body portion 10, A plurality of second reinforcing ribs 40 protruding from the lower side to the lower side and having a protruding length gradually decreasing from the lower side to the upper side; And a conductor supporting tube 51 formed in an inner hollow tube shape protruding from the inner side surface of the body part 10 by a predetermined distance and having a predetermined distance from the outer peripheral surface of the conductor supporting tube 51 And a plurality of third reinforcing ribs (52) protruding from the first supporting ribs (50).

Description

{Protection Cover for Carrying Gas Insulated Switchgear}

The present invention relates to a protective cover for a gas insulated switchgear for protecting an internal conductor line of an insulated spacer assembly while transporting a gas insulated switchgear device and preventing foreign substances or moisture from entering the device and preventing breakage due to impact And more particularly to a method for sealing an insulating spacer assembly of a gas insulated switchgear device by inserting an insulated gas into the insulator and sealing it with a protective cover for transportation in order to protect an inner conductor line during transportation of the insulated spacer assembly, To prevent the outflow of gas,

In addition, by changing the structural shape of the conventional protective cover for transportation, it is possible to prevent the gas explosion due to the breakage of the protective cover for transportation during transportation, And to minimize the scattering of the debris of the protective cover for transportation in the event of an explosion, thereby preventing human accidents in advance.

Gas Insulated Switchgear (GIS) is a power switching device used in indoor and outdoor power stations and substations. It can open and close the line safely even in abnormal conditions such as power failure, short circuit, It is a device that adequately protects the power system. Such a gas insulated switchgear includes a circuit breaker (CB), a disconnecting switch (DS), a earthing switch for maintenance, a current breaker (CT), a line earthing switch (LES) A main bus, a gas-to-air bushing, and an operating box.

Generally, the gas insulated switchgear is manufactured, assembled, and tested after receipt of order, and after the disassembly by transportation dimension in order to make the final delivery, the transportation cover is made. And for protection against foreign objects and impacts, it is only used until installation after transportation, and can be recovered and recycled after transportation. In order to provide a sufficient protection of the gas insulated switchgear, in Patent Provision 10-1180052 (entitled " Protective cover for gas insulated switchgear transport "), PP (Polypropylene) -EPDM Diene Monomer) material, which can be mass-produced through an injection mold, has a three-phase line accommodating portion to accommodate a three-phase line protruding from a three-phase insulating spacer assembly, In order to more securely protect the track, PP-EPDM material is formed to be thicker than other parts to increase the strength,

The three-phase line accommodating portion protrudes to the outside and is vulnerable to the protection of three-phase line which requires more important protection. In addition, the impact force and the withstand-pressure performance are low , There is a problem that a large lump debris is liable to be scattered due to low dispersibility of external pressure or impact force in case of a breakage due to impact or excessive gas charging, and there is a high risk of human accidents. There is a problem that it is difficult to install the sensor.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an insulated spacer assembly of an insulated spacer assembly of a gas insulated switchgear which can more safely protect and protect an internal conductor line from external impact, It is possible to improve the impact resistance and the pressure resistance performance by changing the structure shape so as to be dispersed to the whole cover and to improve the dispersibility of the impact force in the case of the damage due to the excessive impact so as to minimize the scattering of large lump debris And to prevent the occurrence of human accidents,

In addition, it is possible to easily install the internal pressure measuring sensor for charging and preventing the gas during the gas filling, so that the explosion due to the gas and charging can be prevented in advance.

In one aspect of the present invention for solving the above-mentioned problems, a gas insulated switchgear (GIS) is used for protecting the inner conductor line 120 during transportation of the insulation spacer assembly 110 of a gas insulated switchgear (GIS) The protective cover for transporting the opening and closing device has a conical shape in which an empty space part (11) is formed inside and a flat part is provided on an upper side, and a plurality of rigid reinforcing stepped surfaces 13) are formed; A base frame 20 provided at a circular rim of a predetermined width along a lower outer circumferential surface of the body 10 and detachably coupled to an end surface of the insulating spacer assembly 110 of the gas insulated switchgear; A plurality of first reinforcing ribs (30) protruding with a predetermined length along the outer peripheral surfaces of the end portions of the flat surface portion and the plurality of rigid reinforcing stepped surfaces (13); The first reinforcing ribs 30 are disposed between the base frame 20 and the first reinforcing ribs 30 located at the lower side and between the first reinforcing ribs 30 at positions spaced apart from each other by a predetermined distance along the outer peripheral surface of the body portion 10, A plurality of second reinforcing ribs 40 protruding from the lower side to the lower side and having a protruding length gradually decreasing from the lower side to the upper side; And a conductor supporting tube 51 formed in an inner hollow tube shape protruding from the inner side surface of the body part 10 by a predetermined distance and having a predetermined distance from the outer peripheral surface of the conductor supporting tube 51 And a plurality of third reinforcing ribs (52) protruded from the first supporting ribs (50).

In the protective cover for transporting gas insulated switchgear according to an embodiment of the present invention, a gas injection hole (60) for gas injection is formed in a plane part of the body part (10) A sensor mounting hole 70 may be formed so that a sensor for measuring the internal pressure of the gas injected at a predetermined distance from the sensor mounting hole 60 may be provided,

Preferably, the protective cover 1 for transporting the gas insulated switchgear may be made of PC (Polycarbonate) or PC-ABS (Polycarbonate-Acrylonitrile Butadiene Styrene).

In the gas insulated switchgear according to the present invention, a conductor supporting portion for protecting and supporting the inner conductor line is provided inside the protective cover for transportation, so that the inner conductor line of the insulating spacer assembly of the gas insulated switchgear is more securely supported And the impact force at the time of external impact during transportation is easily dispersed throughout the protective cover for transportation to improve the impact resistance and the withstand pressure performance and at the time of breakage due to an excessive impact, the dispersibility of the impact force is improved and large lump debris is scattered Minimize the risk of accidents, prevent human accidents,

In addition to the inflow hole for filling the gas, a separate sensor mounting hole for installing the internal pressure measuring sensor can be installed to easily install the internal pressure measuring sensor for charging the gas and preventing the charging, . ≪ / RTI >

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view from above of a protective cover for a gas insulated switchgear according to the present invention; FIG.
FIG. 2 is a perspective view of a protective cover for transporting a gas insulated switchgear according to the present invention as viewed from below; FIG.
3 is a sectional view of a protective cover for transporting gas insulated switchgear according to the present invention; And
4 is a use cross-sectional view showing that a protective cover for transporting gas insulated switchgear according to the present invention is mounted on an end of an insulated spacer assembly of a gas insulated switchgear to support an internal conductor line.

Hereinafter, embodiments of the present invention in which the above object can be specifically realized will be described with reference to the accompanying drawings. In describing the embodiments, the same names are denoted by the same reference numerals, and further description thereof will be omitted below.

FIG. 1 is a perspective view of a protective cover 1 for transporting a gas insulated switchgear according to the present invention, and FIG. 2 is a perspective view of the protective cover 1 for transporting a gas insulated switchgear according to the present invention.

4 is a cross-sectional view of a protective cover 1 for a gas-insulated switchgear according to the present invention, which is connected to an insulated spacer assembly (not shown) of a gas-insulated switchgear 110 to support the inner conductor line 120. As shown in Fig.

The protective cover for transporting gas insulated switchgear according to the present invention comprises a body portion 10 having an inner hollow space 11 and a base frame 10 having a circular rim on the lower outer circumferential surface of the body portion 10, A plurality of first reinforcing ribs 30 provided on the outer circumferential surfaces of the end portions of the planar portion and the plurality of rigid reinforcing stepped surfaces 13 and a plurality of first reinforcing ribs 30 disposed on the lower side of the body portion 10, A plurality of second reinforcing ribs 40 provided at predetermined intervals on the outer side of the body 10 between the base frame 20 of the body frame 10 and an insulating spacer assembly 110 provided inside the body 10, And a conductor supporting portion 50 for supporting and protecting the inner conductor line 120 of the semiconductor device.

As shown in FIGS. 1 and 2, the body 10 is formed in a conical shape with a planar portion on the upper side and a base frame 20 integrally formed on the outer peripheral surface on the lower side. And an empty space portion 11 is formed in the interior of the housing, so that the conductor supporting portion 50 protrudes inward. A rigid reinforcing stepped surface 13 of a circular rim shape formed to be stepped at a predetermined width is formed between the flat portion located on the upper side and the base frame 20 located on the lower side, So that the axial load transmitted through the body 10 can be dispersed in the circumferential direction and the rigidity and strength in the circumferential direction can be improved.

2 and 4, the flat portion provided at the upper end of the body 10 is formed in a circular shape, and a gas injection hole 60 for gas injection and a gas injection hole A sensor mounting hole 70 is formed so that a sensor for measuring internal pressure for measuring the internal pressure of the gas can be installed and the protective cover 1 for transportation according to the present invention is installed at the end of the insulating spacer assembly 110, The gas can be injected while checking the internal pressure in real time while insulated gas is being injected, and explosion and safety accidents, which may be caused by excessive gas injection, can be prevented in advance.

1 and 4, the base frame 20 is provided with a circular rim having a predetermined width along the outer circumferential surface of the lower end of the body portion 10, so that the insulating spacer assembly 110 So that the inner insulating gas is sealed so as not to leak to the outside. Although not shown, it may be screwed, and an O-ring for sealing may be added to the screwed portion.

As shown in FIGS. 1 and 3, the plurality of first reinforcing ribs 30 are formed in a circular shape having a predetermined length along the respective end portions of the flat surface portion and the plurality of rigid reinforcing stepped surfaces 13, So as to reinforce the strength of the flat portion and the end portions protruding outward from the plurality of rigid reinforcing end face surfaces 13 and to improve the impact resistance of the projected portions.

As shown in FIGS. 1 and 3, the plurality of second reinforcing ribs 40 are disposed between the base frame 20 and the first reinforcing ribs 30 located on the lower side, and between the first reinforcing ribs 30, (30), protruding at a predetermined distance from each other along the outer circumferential surface of the body part (10), and having a protruding length gradually shorter from the lower side toward the upper side so as to have a substantially triangular shape, (13) and the first reinforcing rib (30), which are provided for improving the strength and pressure resistance of the body portion (10) The reinforcing ribs 40 are dispersed and transferred to the first reinforcing ribs 30, the rigid reinforcing stepped surfaces 13 or the base frame 20 connected to the upper side or the lower side to improve the overall withstand pressure performance and impact resistance I will.

As shown in FIGS. 3 and 4, the conductor supporting portion 50 includes a hollow tube-shaped conductor supporting tube 51 protruding a predetermined distance from the inner surface of the body portion 10, A plurality of third reinforcing ribs 52 protruding from the outer circumferential surface of the conductor supporting tube 51 at a predetermined distance from the outer circumferential surface of the conductor supporting tube 51 to insert the inner conductor line 120 of the insulating spacer assembly 110, It is possible to securely support and protect the inner conductor line 120 during transportation while preventing sagging phenomenon.

Preferably, the protective cover 1 for transporting gas insulated switchgear is made of PC (Polycarbonate) or PC-ABS (Polycarbonate-Acrylonitrile Butadiene Styrene) to enable mass production according to an injection mold, The impact resistance, the internal pressure and the heat resistance performance can be improved, and the scattering of the protective cover 1 due to the excessive internal pressure can be minimized.

As described above, in the protective cover 1 for transporting gas insulated switchgear according to the present invention, the conductor support portion 50 for protecting and supporting the internal conductor line 120 is provided inside the protective cover 1 for transportation, The inner conductor line 120 of the insulation spacer assembly 110 of the first embodiment can be more securely protected from external impact,

A plurality of rigid reinforcing stepped surfaces 13 provided on the body 10 in such a manner that the plurality of rigid reinforcing stepped surfaces 13 are stepped at positions spaced upward and downward from the body part 10 by predetermined intervals, The plurality of first reinforcing ribs 30 and the plurality of first reinforcing ribs 30 and the base frame 20 are connected to each other in the up and down directions, The protection cover 1 for the gas insulated switchgear is formed of a polycarbonate or PC-ABS (Polycarbonate-Acrylonitrile Butadiene Styrene) material. The impact force at the time of external impact is easily dispersed throughout the protective cover 1 for transportation to improve the impact resistance and the pressure resistance performance and at the time of breakage due to an excessive impact, the dispersibility of the impact force is improved to minimize scattering of large lump debris Can , Can prevent the occurrence of human accidents,

In addition, since the separate sensor mounting hole 70 for installing the internal pressure measuring sensor is formed separately from the inlet hole for filling the gas, the internal pressure measuring sensor for charging the gas and preventing the charging can be easily installed, The explosion can be prevented in advance.

It is to be understood by those skilled in the art that the present invention may be embodied in many other forms without departing from the spirit and scope of the invention,

Accordingly, the above-described embodiments are to be considered illustrative and not restrictive, and all of the embodiments within the scope of the appended claims and their equivalents are intended to be included within the scope of the present invention.

1: Gas insulated switchgear protective cover for transportation
10: body part 11: empty space part
12: plane portion 13: rigidity reinforcing end face
20: base frame 21: fastening hole
22: O-ring groove
30: first reinforcing ribs 40: second reinforcing ribs
50: conductor supporting portion 51: conductor supporting tube
52: third reinforcing rib
60: gas injection hole 70: sensor installation hole
110: Insulation spacer assembly
120: internal conductor track

Claims (3)

A protective cover for a gas insulated switchgear transporting apparatus used for protecting an internal conductor line (120) during transportation of an insulated spacer assembly (110) of a gas insulated switchgear (GIS)
And a plurality of rigid reinforcing stepped surfaces 13 are formed at positions spaced from each other by a predetermined distance from the lower side of the flat surface portion. The body portion 11 has a hollow space 11 formed therein, 10);
A base frame 20 provided at a circular rim of a predetermined width along a lower outer circumferential surface of the body 10 and detachably coupled to an end surface of the insulating spacer assembly 110 of the gas insulated switchgear;
A plurality of first reinforcing ribs (30) protruding with a predetermined length along outer peripheral surfaces of the end portions of the planar portion and the plurality of rigid reinforcing end face (13);
The first reinforcing ribs 30 are disposed between the base frame 20 and the first reinforcing ribs 30 located at the lower side and between the first reinforcing ribs 30 at positions spaced apart from each other by a predetermined distance along the outer peripheral surface of the body portion 10, A plurality of second reinforcing ribs 40 protruding from the lower side to the lower side and having a protruding length gradually decreasing from the lower side to the upper side; And
A conductor supporting tube 51 formed in an inner hollow tube shape protrudes a predetermined distance from the inner side surface of the body portion 10 and is disposed at a position spaced apart from each other by a predetermined distance along the outer peripheral surface of the conductor supporting tube 51 (50) having a plurality of third reinforcing ribs (52) protruding therefrom,

In the plane portion of the body portion 10,
A gas injection hole (60) for gas injection is formed in the through hole. A sensor for measuring the internal pressure of the gas injected at a position spaced apart from the gas injection hole (60) (70) is formed in the through hole,

Wherein the protective cover (1) for transporting the gas insulated switchgear
(PC) or PC-ABS (Polycarbonate-Acrylonitrile Butadiene Styrene). delete delete
KR1020150178373A 2015-12-14 2015-12-14 Protection Cover for Carrying Gas Insulated Switchgear KR101758636B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150178373A KR101758636B1 (en) 2015-12-14 2015-12-14 Protection Cover for Carrying Gas Insulated Switchgear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150178373A KR101758636B1 (en) 2015-12-14 2015-12-14 Protection Cover for Carrying Gas Insulated Switchgear

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KR20170070621A KR20170070621A (en) 2017-06-22
KR101758636B1 true KR101758636B1 (en) 2017-07-17

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2948849B2 (en) 1990-02-08 1999-09-13 日本プラスト株式会社 Gas bag cover
JP2010133425A (en) 2004-11-12 2010-06-17 Lg Electronics Inc Discharge valve
KR101180052B1 (en) * 2011-08-18 2012-09-05 현대중공업 주식회사 Protection cover for carrying gas insulated switchgear

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2948849B2 (en) 1990-02-08 1999-09-13 日本プラスト株式会社 Gas bag cover
JP2010133425A (en) 2004-11-12 2010-06-17 Lg Electronics Inc Discharge valve
KR101180052B1 (en) * 2011-08-18 2012-09-05 현대중공업 주식회사 Protection cover for carrying gas insulated switchgear

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KR20170070621A (en) 2017-06-22

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