KR20100093201A - Seperator of elbow connector of transformer - Google Patents

Seperator of elbow connector of transformer Download PDF

Info

Publication number
KR20100093201A
KR20100093201A KR1020090012279A KR20090012279A KR20100093201A KR 20100093201 A KR20100093201 A KR 20100093201A KR 1020090012279 A KR1020090012279 A KR 1020090012279A KR 20090012279 A KR20090012279 A KR 20090012279A KR 20100093201 A KR20100093201 A KR 20100093201A
Authority
KR
South Korea
Prior art keywords
elbow
connecting member
bushing
separating
transformer
Prior art date
Application number
KR1020090012279A
Other languages
Korean (ko)
Other versions
KR101041732B1 (en
Inventor
흡 윤
전성진
Original Assignee
흡 윤
전성진
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 흡 윤, 전성진 filed Critical 흡 윤
Priority to KR1020090012279A priority Critical patent/KR101041732B1/en
Priority to PCT/KR2009/000788 priority patent/WO2010093079A1/en
Publication of KR20100093201A publication Critical patent/KR20100093201A/en
Application granted granted Critical
Publication of KR101041732B1 publication Critical patent/KR101041732B1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/53—Bases or cases for heavy duty; Bases or cases for high voltage with means for preventing corona or arcing
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/02—Cable terminations
    • H02G15/06—Cable terminating boxes, frames or other structures

Landscapes

  • Cable Accessories (AREA)

Abstract

PURPOSE: The elbow connector separating device prevents the secession of the elbow connector in the separation of the elbow connector with the underground line cable from the elbow insulating cover. In that way the elbow connector separating can be mounted in the exact location. CONSTITUTION: The elbow insulating cover(100) protects the elbow connector(30). The settling frame(115) comprises the elbow fitting groove inserting the elbow connector into inside. The connection loop is insertable in the operation loop of the elbow connector inserted in the elbow fitting groove. The tier outlet controls the desorption of the connection loop. It operates the tier outlet and the steering wheel for binding closely joins the elbow connector and elbow fitting groove.

Description

Elbow Connector Separator {Seperator of Elbow Connector of Transformer}

The present invention relates to an elbow connector separating device for a ground transformer, and more particularly, to an apparatus for separating the elbow connecting member in construction for replacement of the ground transformer connected to the underground cable.

In Korea, electricity generated by using hydroelectric power, thermal power, nuclear power, etc., has a voltage of about 1 to 50,000 volts, which is boosted to 154,000 volts or 345,000 volts in a high-voltage substation. The low pressure substation will be sent to a low voltage substation, where it will be decompressed to 22,000 to 66,000 volts and transmitted to a transformer near the customer. The electricity transmitted to the transformer near the customer is reduced to 220 volts and supplied to the customer.

On the route to supply electricity to the consumers in the power plant, there is a section of overhead lines connected through steel towers and underground lines to bury the wires in the ground. In recent years, most urban underground lines have been used to design new cities through urban development. In addition to adopting the method, the existing overhead line section is increasingly replaced by underground lines for urban aesthetics.

However, in the case of adopting a transmission method using overhead lines, various electric works such as repairing transformers or replacing power poles, while continuously supplying electricity to customers by using uninterruptible power distribution methods such as Korean Patent Nos. 353552 and 407376, are registered. In the case of adopting a transmission method using underground lines, it is very dangerous to remove underground cable from the ground transformers near the customer, so that the electric power is foreseen in the state of shutting off the electricity and shutting off the electricity.

In order to solve such a conventional problem, the present inventors can safely remove the underground cable from the ground transformer through Republic of Korea Patent Nos. 722251, 757730, and 805224, as well as uninterrupted electrical work for underground cables. A device and a construction method that can be completed have been disclosed, and KEPCO is currently conducting electrical work according to the above uninterruptible construction method in the area where underground cable is buried.

Since the present invention will be understood with reference to the above patent, the description of the non-electroless method of the present invention will be omitted, and will be described briefly with respect to the conventional elbow connector separating device.

The ground transformer 1 used for transforming or opening and closing the underground line has an intermediate wall divided into a high pressure side wall 20 and a low pressure side wall 50 in an enclosure 10 having an opening and closing door 12 as shown in FIG. 1. 6 bushings 22 for underground cable installation are installed on the high-pressure side wall, and an insulating bushing for mounting elbow connection material of underground cable disconnected during construction is installed. ) Are installed. Ground switchgear, which is one of the underground devices, has a structure similar to that of the high pressure side wall 20 of the ground transformer, and can be opened and closed by a switch. In FIG. 1, some reference numerals are omitted for the same components. Those skilled in the art can understand that the components having the same shape and structure in the drawings are the same components even if the reference numerals are omitted, so that duplicate reference numerals will be omitted in the following drawings as necessary. .

Although the ground transformer 1 will be described below, the technical idea of the present invention may be applied to the ground switchgear having a similar structure as described above.

The size and position of the bushing 22 and the parking stand 24 of the ground transformer 1 are specified by the KEPCO standard. In addition, the low pressure side wall 50 is provided with four terminals 54 (A, B, C, N poles) for supplying electricity to each customer.

The underground cable 34 is connected to the elbow connecting member 30, as shown in Figure 2 is connected to the bushing 22 of the ground transformer (1). The elbow connection member 30 is electrically connected to a contact terminal (not shown) in the bushing 22 through a contact rod 32 in the center thereof, and the contact rod 32 is formed of a conductive layer 37 and a crimp terminal. It is connected to the underground cable 34 via 36.

The elbow connecting member 30 is provided with an insulating layer 35 inside and a shielding layer 33 outside to protect the worker from high voltage electricity. The elbow connecting member 30 is provided with a voltage detecting unit 31 to determine whether a load is applied to the elbow connecting member. And so on.

3 shows a typical use form in which the elbow connecting member 30 in which the underground cable 34 is connected to the ground transformer 1 is inserted, and the three underground cable 34 in each of the left and right sides are transformed inside the transformer 1. The device (not shown) not only supplies low voltage electricity to the consumer, but also forms a loop circuit that supplies electricity to a nearby transformer. In addition, a cable 52 for supplying electricity to the low pressure side wall 50 is connected to the low pressure terminal 54.

In order to remove the underground cable 34 from the ground transformer 1 of FIG. 3, the elbow connecting member 30 is fitted into the elbow fitting groove 110 of the elbow insulating cover 100 as shown in FIGS. 4 and 5. .

5 (A) (B) is a horizontal cross-sectional view showing the elbow connecting member 30 and the elbow insulating cover 100 is coupled, the elbow insulating member 100 is inserted into the elbow connecting member 30, and then the elbow connecting member ( The binding mechanism 120 is operated to insert the connection ring 105 into the operation ring 38 of 30.

As shown in the drawing, the binding mechanism 120 is machined at the tip of the first fastening fastening hole 122 and the fastening adjustment screw 125 which are processed at a position away from the rotary shaft 106 in the connecting ring 105. The second fastening fastening hole 124 is coupled is composed of a connecting rod 123 for connecting the connection ring 105 and the binding adjusting screw 125 for the connection.

As described above, the binding mechanism 120 rotates the connection ring 105 as the binding screw 125 moves backward as the operation of the binding handle 126 is inserted into the operation ring 38 of the elbow connecting member 30. The elbow connecting member 30 and the elbow insulating cover 100 are brought into intimate contact with each other by the contact of the inserted connecting ring 105 and the operating ring 38.

Thereafter, the elbow insulation cover 100 is separated using the elbow connection member separation mechanism 400 as shown in FIG. 6.

The elbow connection member separating mechanism 400 includes a connection plate 410, a drawing bar 420, a guide bar 430, and a cylinder 440.

The elbow connector separating mechanism 400 is fixed to the transformer 1 by the support 490 after being in close contact with the transformer 1.

One end of the drawing bar 420 and the guide bar 430 is connected to the connection plate 410 to which the elbow insulating cover 100 connected to the elbow connecting material to be separated is fixed, and the other end of the drawing bar 420. Is connected to the cylinder 440.

The other side of the guide rod 430 serves to guide the elbow connecting member 30 to be drawn out rearward by a through hole for guiding the guide rod 430.

By operating the cylinder 440 to move the elbow connecting member 30 to the rear will be able to remove the elbow connecting member 30 from the transformer (1).

The removed elbow connecting member 30 is fitted to the panel portion 300 as shown in FIG. 7 fitted to the parking stand 24 of FIG. 1. The panel unit 300 is coupled to the mounting plate 330, the parking stand 24 of the ground transformer 1, the bracket 310 provided on the rear of the mounting plate 330, and the elbow connection member 30 drawn out. ) Is fitted with an elbow beech bushing 320 attached to the front of the mounting plate 330, the bracket 310 or the elbow beech 320 is coupled to move up, down, left and right. have.

However, as a result of the actual use of the conventional elbow connector separating device 400 as described above, the size of the panel portion 300 is large, so that the contact rod 32 of the elbow connecting member 30 is inserted into the elbow fitting bushing 320 during operation. It is difficult to put, and it is difficult to install the elbow connecting member separating mechanism 400 side by side with the transformer, the diameter of the underground cable 34 is large, when the elbow connecting member 30 is separated from the transformer 1, a large force is generated There was a problem that the separation between the connection member 30 and the elbow insulation cover 100.

The present invention has been made to solve the above problems, and when the elbow connection member is separated, the elbow connection member is not separated from the elbow insulation cover by the underground cable, and the separated elbow connection member 13 is mounted in a more accurate position. The purpose of the present invention is to provide an elbow connecting member separating device capable of installing the elbow connecting member separating mechanism 400 to the transformer 1 regardless of the form of the ground.

Elbow connection member separating apparatus of the present invention,

A conventional elbow for separating the elbow connecting member from the bushing of the ground transformer, including an elbow insulating cover surrounding the elbow connecting member, an elbow coupling bushing for mounting the elbow connecting member, and an elbow connecting member separating mechanism for separating and moving the elbow connecting member. In the connecting material separating device,

The elbow insulation cover,

An elbow fitting groove for inserting an elbow connecting member therein, and a fixing frame made of an insulating material, a connecting ring insertable into an operating ring of an elbow connecting member fitted to the elbow fitting groove, and a binding mechanism for adjusting the detachment of the connecting ring. And a binding handle for tightly binding the elbow fitting member and the elbow fitting groove by operating the binding mechanism, and a cable fixing mechanism 113 for tightly fixing the lower end of the elbow connecting member to the elbow fitting groove by the operation handle 112. It is characterized by comprising a).

Elbow connection member separating apparatus of the present invention,

A conventional elbow for separating the elbow connecting member from the bushing of the ground transformer, including an elbow insulating cover surrounding the elbow connecting member, an elbow coupling bushing for mounting the elbow connecting member, and an elbow connecting member separating mechanism for separating and moving the elbow connecting member. In the connecting material separating device,

A bushing mounting plate having a bushing fitting groove which is fastened by a screw that fixes the bushing of the ground transformer is provided, and the elbow mounting bushing is slidably fitted into the bushing fitting groove of the bushing mounting plate. It is another feature.

Elbow connection member separating apparatus of the present invention,

A conventional elbow for separating the elbow connecting member from the bushing of the ground transformer, including an elbow insulating cover surrounding the elbow connecting member, an elbow coupling bushing for mounting the elbow connecting member, and an elbow connecting member separating mechanism for separating and moving the elbow connecting member. In the connecting material separating device,

The elbow connecting member separating mechanism,

It includes a lower frame having a engaging portion for engaging with the lower wall of the inlet of the transformer, and an upper frame screwed to the upper wall of the inlet of the transformer, it is another feature to prevent the contact with the ground when installed in the transformer .

According to the present invention, the working rod 32 of the elbow connecting member 30 can be easily inserted into the elbow beech bushing 320 during operation, and the elbow connecting member separating mechanism 400 can be installed in a transformer regardless of the terrain. The elbow connection member 30 can be separated from the transformer 1 without being disturbed by the underground cable 34.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

8 shows the elbow insulation cover 100 and the elbow connecting member 30,

Elbow insulation cover 110,

An elbow fitting groove (110) for inserting the elbow connecting member (30) therein and a fixing ring (115) made of an insulating material, and a connecting ring insertable into an operation ring of the elbow connecting member fitted into the elbow fitting groove (110). (Not shown in the drawing, see FIG. 5), a binding mechanism for controlling the detachment of the connecting ring (not shown, see FIG. 5), and the operating mechanism to operate the elbow connecting member 30 and the elbow fitting groove ( A fastening handle 116 for tightly fastening the 110 and a cable fixing mechanism 113 for tightly fixing the lower end 39 of the elbow connecting member to the elbow fitting groove by operating the operation handle 112. .

When the elbow connecting member 30 is inserted into the elbow fitting groove 110 and the front end 111 of the cable fixing mechanism is supported by pressing the lower end 39 of the elbow connecting member by the manipulation handle 112, the elbow at a later work When the elbow connecting member 30 coupled with the insulating cover 110 is separated from the transformer, the elbow insulating cover 110 and the elbow connecting member 30 are prevented from being disassembled from each other by the underground cable 34.

9 shows a bushing mounting plate 340 for installing an elbow beech bushing 320 for fitting the elbow connector 30 separated from the transformer during operation.

A bushing mounting plate 340 having a bushing fitting groove 341 into which the elbow fitting bushing 320 is fitted is provided, and the elbow mounting bushing 320 is a bushing fitting groove 341 of the bushing mounting plate 340. ) Is slidably fitted.

Thereafter, the through hole 342 formed on the opposite side to the opening direction of the bushing fitting groove 341 is inserted into and fastened to a screw 343 fixing the bushing 23 of the transformer as shown in FIG. 10.

It is also preferable that the opening of the bushing fitting groove 341 be close to the side wall 2 of the transformer so that the elbow bent bushing 320 does not fall out.

By such a structure, the elbow mounting bushing 320 may be installed in parallel with the bushing 23 of the transformer, and the operator may set a constant distance between the elbow mounting bushing 320 and the transformer bushing 23. Accordingly, the structure of the elbow mounting bushing is not complicated as in the related art, and the elbow connecting member 30 separated from the transformer bushing 23 can be accurately inserted into the elbow mounting bushing 320.

11 and 12 show the elbow connector separating mechanism of this embodiment.

In contrast to the elbow connector separating mechanism 400 of the present embodiment, compared to the conventional elbow connector separating mechanism shown in FIG. 6, while the conventional one is mounted on the ground and coupled to the transformer, the embodiment of the present embodiment is directly installed in the transformer. Characterized by not touching the ground.

To this end, the elbow connecting member separating mechanism 400 of the present embodiment is provided with a locking portion 520 in the lower frame 510 to be engaged with the lower wall of the inlet of the transformer 1, and also in the upper frame 530 Screwed to the upper wall of the inlet of the transformer (1), so that the elbow connector separating mechanism is installed at the inlet of the transformer. By the above configuration, there is no need for a complicated height adjusting mechanism for maintaining the level of the elbow connection member separating mechanism, and also has the advantage of reducing the size thereof.

1 is a view showing the structure of the ground transformer.

2 is a view showing the structure of the elbow connecting member.

Figure 3 is a view showing the ground cable connected to the ground transformer.

4 and 5 is a view showing the shape and structure of a conventional elbow connector and elbow insulation cover.

Figure 6 is a view showing a conventional elbow connector separating device.

7 is a view showing a panel portion for a conventional elbow beech bushing.

8 is a view showing the shape and structure of the elbow connector and the elbow insulation cover of the present invention.

9 and 10 is a view showing a bushing plate and the use example of the present invention.

11 and 12 are views showing an elbow connector separating mechanism of the present invention and an example of its use.

Claims (3)

A conventional elbow for separating the elbow connecting member from the bushing of the ground transformer, including an elbow insulating cover surrounding the elbow connecting member, an elbow coupling bushing for mounting the elbow connecting member, and an elbow connecting member separating mechanism for separating and moving the elbow connecting member. In the connecting material separating device, The elbow insulation cover, An elbow fitting groove for inserting an elbow connecting member therein, and a fixing frame made of an insulating material, a connecting ring insertable into an operating ring of an elbow connecting member fitted to the elbow fitting groove, and a binding mechanism for adjusting the detachment of the connecting ring. And a binding handle for tightly binding the elbow connecting member and the elbow fitting groove by operating the binding mechanism, and a cable fixing mechanism for tightly fixing the lower end of the elbow connecting member to the elbow fitting groove by the operation handle. Elbow connector separating device. A conventional elbow for separating the elbow connecting member from the bushing of the ground transformer, including an elbow insulating cover surrounding the elbow connecting member, an elbow coupling bushing for mounting the elbow connecting member, and an elbow connecting member separating mechanism for separating and moving the elbow connecting member. In the connecting material separating device, A bushing mounting plate is fastened by a screw that fixes the bushing of the ground transformer and has a bushing fitting groove to which the bushing is fitted. And the elbow mounting bushing is slidably fitted into the bushing fitting groove of the bushing mounting plate. A conventional elbow for separating the elbow connecting member from the bushing of the ground transformer, including an elbow insulating cover surrounding the elbow connecting member, an elbow coupling bushing for mounting the elbow connecting member, and an elbow connecting member separating mechanism for separating and moving the elbow connecting member. In the connecting material separating device, The elbow connecting member separating mechanism, An elbow connecting member comprising a lower frame having a locking portion for engaging with the lower wall of the inlet of the transformer and an upper frame screwed to the upper wall of the inlet of the transformer, and being in contact with the ground when installed in the transformer. Separator.
KR1020090012279A 2009-02-16 2009-02-16 Seperator of Elbow Connector of Transformer KR101041732B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020090012279A KR101041732B1 (en) 2009-02-16 2009-02-16 Seperator of Elbow Connector of Transformer
PCT/KR2009/000788 WO2010093079A1 (en) 2009-02-16 2009-02-19 Elbow connector remover

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090012279A KR101041732B1 (en) 2009-02-16 2009-02-16 Seperator of Elbow Connector of Transformer

Publications (2)

Publication Number Publication Date
KR20100093201A true KR20100093201A (en) 2010-08-25
KR101041732B1 KR101041732B1 (en) 2011-06-16

Family

ID=42561914

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020090012279A KR101041732B1 (en) 2009-02-16 2009-02-16 Seperator of Elbow Connector of Transformer

Country Status (2)

Country Link
KR (1) KR101041732B1 (en)
WO (1) WO2010093079A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101657267B1 (en) 2016-05-26 2016-09-13 태성전설 주식회사 Elastic method elbow opening and closing device for underground uninterruptible method
KR102405565B1 (en) * 2021-10-13 2022-06-07 주식회사 파워엔솔루션 Fastening Tool for Arc Extinguishing Pin of Elbow Connecting with Transformer
KR20230110021A (en) * 2022-01-14 2023-07-21 한국전력공사 Elbow connector separator and uninterruptible replacement device and method for aerial insulated cable using the same

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101251610B1 (en) * 2012-12-03 2013-04-08 주식회사 평일 Elbow connector with a fuse
KR101310281B1 (en) 2013-03-25 2013-09-24 대흥전력기술 주식회사 Jig device and method for repairing leak of transformer on live wire state
US11646168B2 (en) 2020-01-14 2023-05-09 Leeward Asset Management, LLC External switch coupler for pad-mounted transformers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100643184B1 (en) 2005-07-22 2006-11-10 피앤에이파워시스템 주식회사 A high voltage cable connecting housing
KR100769335B1 (en) 2006-07-19 2007-10-24 주식회사 평일 Primary busbar access device for replace transformer without interruption of electric service
KR20080024646A (en) * 2006-09-14 2008-03-19 김기준 Dead brake type connection device of underground switchgear
KR100842321B1 (en) 2007-03-26 2008-06-30 주식회사 평일 A live front load breaker of an elbow connector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101657267B1 (en) 2016-05-26 2016-09-13 태성전설 주식회사 Elastic method elbow opening and closing device for underground uninterruptible method
KR102405565B1 (en) * 2021-10-13 2022-06-07 주식회사 파워엔솔루션 Fastening Tool for Arc Extinguishing Pin of Elbow Connecting with Transformer
KR20230110021A (en) * 2022-01-14 2023-07-21 한국전력공사 Elbow connector separator and uninterruptible replacement device and method for aerial insulated cable using the same

Also Published As

Publication number Publication date
KR101041732B1 (en) 2011-06-16
WO2010093079A1 (en) 2010-08-19

Similar Documents

Publication Publication Date Title
KR101041732B1 (en) Seperator of Elbow Connector of Transformer
KR100722251B1 (en) Separator for Elbor Connector of Transformer
CN105702515B (en) A kind of isolation earthing switch mechanism and Cubicle Gas-Insulated Switchgear
CA2775262C (en) Intersystem grounding bridge and system
CN101326604B (en) Ground disconnect switch and method for making same
KR101905441B1 (en) Elbow Insert and its application for live line replacement of the pad mounted transformer
KR101483492B1 (en) Under ground insulating switch board
CN115792310B (en) On-site experiment device and method for switching all-in-one machine
CN202930802U (en) Movable type distribution transformer allowing uninterruptible power supply mounting and dismounting
KR100746787B1 (en) Plug-in box having safety locking apparatus
KR100805224B1 (en) Elbor Connector Seperation Device and The No Blackout Method for Underground Cable Using The Same
KR100757730B1 (en) The no blackout method for underground cable
CN203377426U (en) Anti-explosion pin
CN109412070A (en) A kind of uninterrupted operation device and uninterrupted operation method based on 0.4 kilovolt
CN104184061A (en) Side-mount type flame-proof type high voltage vacuum distribution device for mining
KR102089769B1 (en) Fault section detection device by connection point of the underground wiring
CN103296514A (en) Connector for connections by flat interface and medium-voltage substation
KR101814896B1 (en) Method for power supplying to incomming pannel and distributing board
KR102722984B1 (en) Grounding apparatus for high voltage cable of underground distribution transformer with cone-shaped section
CN204928062U (en) A separable ground connection conversion head for cable system
KR101485148B1 (en) Connector for transmitting incoming line of special high voltage substation facilities
CN110047710A (en) A kind of card slot type breaker of plastic casing
KR102664840B1 (en) Elbow connector separator and uninterruptible replacement device and method for aerial insulated cable using the same
KR102723337B1 (en) Grounding apparatus for high voltage cable of underground distribution transformer with disc-shaped head
KR102708725B1 (en) Grounding apparatus for high voltage cable of underground distribution transformer

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20140526

Year of fee payment: 4

FPAY Annual fee payment

Payment date: 20150617

Year of fee payment: 5

FPAY Annual fee payment

Payment date: 20160419

Year of fee payment: 6

FPAY Annual fee payment

Payment date: 20170425

Year of fee payment: 7

FPAY Annual fee payment

Payment date: 20180329

Year of fee payment: 8

FPAY Annual fee payment

Payment date: 20190610

Year of fee payment: 9