CN100563070C - Gas isolated combination switch device - Google Patents

Gas isolated combination switch device Download PDF

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Publication number
CN100563070C
CN100563070C CNB2007100539430A CN200710053943A CN100563070C CN 100563070 C CN100563070 C CN 100563070C CN B2007100539430 A CNB2007100539430 A CN B2007100539430A CN 200710053943 A CN200710053943 A CN 200710053943A CN 100563070 C CN100563070 C CN 100563070C
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China
Prior art keywords
switch
isolation
housing
high speed
ground
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CNB2007100539430A
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Chinese (zh)
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CN101013800A (en
Inventor
田可新
唐冬芝
刘旭
刘强
宋丽君
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Henan Pinggao Electric Co Ltd
Original Assignee
Henan Pinggao Electric Co Ltd
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Priority to CNB2007100539430A priority Critical patent/CN100563070C/en
Publication of CN101013800A publication Critical patent/CN101013800A/en
Application granted granted Critical
Publication of CN100563070C publication Critical patent/CN100563070C/en
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Abstract

The present invention relates to a kind of gas isolated combination switch device of compact conformation, comprise the outlet sleeve pipe that holds the high-voltage terminal binding post; Breaker unit; The current transformer that links to each other with the breaker unit terminal, two ground connection isolated location; The isolation ground unit that is connected with other terminal of breaker unit; The entrance bushing that holds high pressure inlet wire binding post that is connected with the isolation ground unit; Two ground connection isolated locations comprise housing, high speed grounding switch and isolation earthing switch; High speed grounding switch comprises quiet moving contact, switch operating mechanism, isolation earthing switch comprises conducting bracket, moving contact is contained on the conducting bracket, be connected with operating mechanism by insulating bar, isolate fixed contact and be fixed on the high speed grounding switch fixed contact, be fixed with the ground connection fixed contact in the housing, the ground connection fixed contact is positioned on the isolation earthing switch moving contact surfaces of revolution, can improve operational reliability, realize non-maintainingly, improve the reliability of operation of power networks.

Description

Gas isolated combination switch device
Technical field:
The invention belongs to a kind of outdoor three-phase alternating current 50Hz transmission of electricity switching device, relate in particular to a kind of gas isolated combination switch device of compact conformation.
Background technology:
In order to reduce the floor space of transformer station, the combination switch equipment of various structural shapes has been invented by external switchgear manufacturing company, this combination switch equipment is a kind of power transmission and transforming equipment between open type and GIS (Cubicle Gas-Insulated Switchgear), for example, known CN1205714C discloses a kind of gas-insulated switchgear device, with combining of element compactnesses such as binding post, sleeve pipe, isolating switch, earthed switch, circuit breaker, housing, realize the optimizing design scheme of switchgear, reduced the floor space of transformer station.The circuit breaker two ends can be provided with an isolated location at least during CN1205714C was open, had only an earthed switch in isolated location, had only played the effect of working earthing.But in Chinese electrical network, in order to guarantee the high reliability of operation of power networks, require usually in the both sides of moving contact and fixed contact of isolating switch earthed switch to be set respectively, one of them is used for working earthing, and another is used for quick ground connection.Comprise the above-mentioned described known gas insulator switching device of the isolated location that has only a grounding function like this, can't satisfy the requirement of China Power system operation rules.
Summary of the invention:
The objective of the invention is to overcome the deficiencies in the prior art and a kind of compact conformation is provided and can satisfies the gas isolated combination switch device that China Power system operation rules require, the isolated location with an earthed switch function of known gas-insulated switchgear device realized isolated location with two earthed switch functions, one of them is used for working earthing, a quick ground connection.
To achieve these goals, technical scheme of the present invention is: comprise the outlet sleeve pipe that holds the high-voltage terminal binding post; A breaker unit; The current transformer, the two ground connection isolated location that are connected successively with a terminal of breaker unit; The isolation ground unit that is connected with another terminal of breaker unit; The entrance bushing that holds high pressure inlet wire binding post that is connected with the isolation ground unit; Two ground connection isolated locations comprise housing, are installed in high speed grounding switch and isolation earthing switch in the housing; High speed grounding switch comprises by disc insulator and is installed in be connected with the outlet sleeve pipe fixed contact on the opening of housing, be arranged on the high speed grounding switch moving contact in the housing, the high speed grounding switch operating mechanism that control high speed grounding switch moving contact matches with fixed contact in housing, isolation earthing switch comprises by disc insulator and is installed in conducting bracket on the opening that is connected with current transformer of housing, one end of isolation earthing switch moving contact is movably arranged on the conducting bracket, the other end of isolation earthing switch moving contact is connected with isolation earthing switch operating mechanism by insulating bar, isolating fixed contact is fixed on the high speed grounding switch fixed contact, at the housing internal fixation isolation earthing switch ground connection fixed contact is installed, the ground connection fixed contact is positioned on the Plane of rotation of isolation earthing switch moving contact.
Isolate ground unit comprise an isolating switch that is connected on the main conductive circuit and be connected main conductive circuit and ground between an earthed switch.
Isolate ground unit comprise the isolating switch that is connected two parallel connections on the main conductive circuit and be connected main conductive circuit and ground between an earthed switch.
The entrance bushing that holds high pressure inlet wire binding post that is connected with the isolation ground unit comprises an entrance bushing that holds high pressure inlet wire binding post.
The entrance bushing that holds high pressure inlet wire binding post that is connected with the isolation ground unit comprises two two entrance bushings that hold high pressure inlet wire binding post.
Between breaker unit and isolation ground unit, be provided with current transformer.
Supporting leg and operation cabinet are installed below breaker unit.
An opening of housing is provided with pressure relief device.
The moving contact of high speed grounding switch by guide holder be connected at operating mechanism.
The present invention has following good effect: the transmission facility that the open type substation in the present electric power system is used, comprising: each of elements such as circuit breaker, isolating switch, working earthing switch, high speed grounding switch, current transformer is according to its function combinations together, and the form according to module connects, be connected with unlimited bus by the turnover thread casing again, form the switching system of one group of altitude combination, reduce the quantity of insulator to greatest extent, thereby reduce the insulator probability of flashover over the ground, and can accomplish big through-flow.The power station that utilizes this compound combined electrical equipment switching device to arrange comparable conventional open type transformer station saves takes up an area of about 60%.The amount of parts of this kind product obviously reduces about 30% than existing GIS (Cubicle Gas-Insulated Switchgear) with electric pressure, thereby can improve reliability of operation greatly, and can realize non-maintaining.Because the side at circuit breaker has increased high speed grounding switch, can improve the reliability of operation of power networks effectively.
Description of drawings:
Fig. 1 is a main wiring diagram according to single busbar connection arrangement apparatus embodiment of the present invention.
Fig. 2 is the embodiment general layout structure chart of Fig. 1.
Fig. 3 is a main wiring diagram according to double-bus arrangement apparatus embodiment of the present invention.
Fig. 4 is the embodiment general layout structure chart of Fig. 3.
Fig. 5 is the two ground connection isolated location internal structure schematic diagrames in the invention process.
Fig. 6 is the A-A cutaway view of Fig. 5.
Embodiment:
Shown in Fig. 1,2,3,4,5,6, the present invention includes the outlet sleeve pipe 1 that holds high-voltage terminal binding post 1A; A breaker unit 5; The current transformer 4, the two ground connection isolated location 2,3 that are connected successively with a terminal of breaker unit 5; The isolation ground unit that is connected with another terminal of breaker unit 5; The entrance bushing that holds high pressure inlet wire binding post that is connected with the isolation ground unit;
Two ground connection isolated locations 2,3 comprise housing 102, are installed in high speed grounding switch 2 and isolation earthing switch 3 in the housing 102,
High speed grounding switch 2 comprise by disc insulator 103 be installed in housing 102 be connected with outlet sleeve pipe 1 fixed contact 104 on the opening, be arranged on the high speed grounding switch moving contact 102A in the housing 102, the high speed grounding switch operating mechanism 101 that control high speed grounding switch moving contact 102A matches with fixed contact 104 in housing 102
Isolation earthing switch 3 comprises by disc insulator 103 and is installed in conducting bracket 110 on the opening that is connected with current transformer 4 of housing 102, one end of isolation earthing switch moving contact 106 is movably arranged on the conducting bracket 110, the other end of isolation earthing switch moving contact 106 is connected with isolation earthing switch operating mechanism 107 by insulating bar 111, isolating fixed contact 105 is fixed on the fixed contact 104 of high speed grounding switch, at housing 102 internal fixation ground connection fixed contact 112 is installed, ground connection fixed contact 112 is positioned on the Plane of rotation of isolation earthing switch moving contact 106.
Shown in Fig. 2,4, between breaker unit 5 and isolation ground unit 8,11, be provided with current transformer 7,10.Support 6 and operation cabinet 13 are installed below breaker unit 5.
As shown in Figure 5, housing 102 opening is provided with pressure relief device 108.The moving contact 102A of high speed grounding switch by guide holder 109 be connected at operating mechanism 101.
As shown in Figure 1, isolate ground unit 8 comprise an isolating switch DS1 who is connected on the main conductive circuit and be connected main conductive circuit and ground between an earthed switch ES1.Diagram is main electrical scheme schematic diagram of a typical transformer station single busbar connection.The element that comprises for switching device of the present invention in the two-dot chain line square frame wherein has: six kinds of main elements such as potting breaker CB, current transformer CT1 and CT2, isolating switch ds1 and ds3, working earthing switch ES1 and ES2, high speed grounding switch FES, turnover thread casing BS1 and BS3.Figure 2 shows that the embodiment of Fig. 1, switching device of the present invention wherein comprises the potting breaker CB unit (breaker unit 5) that a metal shell is housed at least, and horizontal arrangement is in the centre of switching device and be placed on the support 6; At least the current transformer CT unit 4,7 that contains a group or more is positioned at the one or both sides of potting breaker; Two ground connection isolated locations 3 are in to be arranged on the current transformer in the same housing and to open wide bus B1 with transformer station respectively by turnover thread casing 1,9 and are connected; Each air chamber appropriate location in a secondary body is equiped with density monitor and pressure relief device; The monopolar operation cabinet 13 of switching device is arranged on the support 6, and three utmost points are joined a convergence control cabinet or protected the observing and controlling cabinet to be placed on the place ahead at interval on the spot.
As shown in Figure 3, isolate ground unit 11 comprise isolating switch DS1, the DS2 that is connected two parallel connections on the main conductive circuit and be connected main conductive circuit and ground between an earthed switch ES1.Shown in Figure 3 is main electrical scheme of a typical transformer station double-bus.The element that comprises for switching device of the present invention in the two-dot chain line square frame wherein has: potting breaker CB, current transformer CT1 and CT2, isolating switch ds1 and ds3 and DS3, working earthing switch ES1 and ES2, high speed grounding switch FES, turnover thread casing BS1 and six kinds of main elements such as BS2 and BS3.
As shown in Figure 2, the entrance bushing that holds high pressure inlet wire binding post that is connected with the isolation ground unit comprises an entrance bushing 9 that holds high pressure inlet wire binding post 9A.
As shown in Figure 4, the entrance bushing that holds high pressure inlet wire binding post that is connected with the isolation ground unit comprises two two entrance bushings 12,14 that hold high pressure inlet wire binding post 12A, 14A.Figure 4 shows that the embodiment of Fig. 3, switching device of the present invention wherein comprises the potting breaker CB unit 5 that a metal shell is housed at least, and horizontal arrangement is in the centre of switching device and be placed on the carrier unit 6; At least the current transformer CT unit 4,10 that contains a group or more is positioned at the one or both sides of potting breaker; Two ground connection isolated locations 3 (having four station composite type isolation/working earthing/high speed grounding switch DS3, ES2, FES unit 2,3) are in the same housing and are in the side that is arranged in current transformer in the same housing with five station composite type isolating/grounding switch DS1, DS2, ES1 unit 11 and are connected with transformer station unlimited bus B1, B2 respectively by turnover line BS1, BS2, BS3 unit 9,12,1; Each air chamber appropriate location in a secondary body is equiped with density monitor and pressure relief device; The monopolar operation cabinet 13 of switching device is arranged on the support, and three utmost points are joined a convergence control cabinet or protected the observing and controlling cabinet to be placed on the place ahead at interval on the spot.
Fig. 5 and Fig. 6 a kind of pair of ground connection isolated location for being provided with in the switching device of the present invention comprises housing 102, three position isolating/grounding switch and a high speed grounding switch.High speed grounding switch 2 is made up of critical pieces such as moving contact 109, fixed contact 104, operating mechanisms 101; Three position isolating/grounding switch 3 are made up of critical pieces such as moving contact 106, isolation fixed contact 105, ground connection fixed contact 112, operating mechanisms 107.Fixed contact links together on the center conductor that is fixed on disc insulator 103 by bolt and fixes with housing with isolating fixed contact, and moving contact 109 is connected separating brake, the closing operation of realizing high speed grounding switch by bolt with operating mechanism 101.One end of moving contact 106 is rotationally connected with conducting bracket 110 and fixedlys connected with the center conductor of disc insulator 113 by conducting bracket, fixes with housing then; The other end of moving contact 106 is connected with operating mechanism 107 by insulating bar 111, and moving contact 106 is realized separating brake, the closing operation of isolating switch with isolating fixed contact, with separating brake, the closing operation of ground connection fixed contact realization working earthing switch.In addition, setting pressure releasing device 108 on housing prevents that the pressure rising suddenly of air chamber from causing housing to destroy.

Claims (9)

1, a kind of gas isolated combination switch device comprises the outlet sleeve pipe (1) that holds high-voltage terminal binding post (1A); A breaker unit (5); The current transformer (4) that is connected with a terminal of breaker unit (5), the two ground connection isolated locations (2,3) that are connected with current transformer (4) again; The isolation ground unit that is connected with another terminal of breaker unit (5); The entrance bushing that holds high pressure inlet wire binding post that is connected with the isolation ground unit; It is characterized in that:
A, two ground connection isolated location (2,3) comprise housing (102), are installed in high speed grounding switch (2) and isolation earthing switch (3) in the housing (102),
B, high speed grounding switch (2) comprise by disc insulator (103) be installed in housing (102) be connected with outlet sleeve pipe (1) fixed contact (104) on the opening, be arranged on the high speed grounding switch moving contact (102A) in the housing (102), the high speed grounding switch operating mechanism (101) that control high speed grounding switch moving contact (102A) matches with fixed contact (104) in housing (102)
C, isolation earthing switch (3) comprises by disc insulator (103) and is installed in conducting bracket (110) on the opening that is connected with current transformer (4) of housing (102), one end of isolation earthing switch moving contact (106) is movably arranged on the conducting bracket (110), the other end of isolation earthing switch moving contact (106) is connected with isolation earthing switch operating mechanism (107) by insulating bar (111), isolating fixed contact (105) is fixed on the fixed contact (104) of high speed grounding switch, at housing (102) internal fixation ground connection fixed contact (112) is installed, ground connection fixed contact (112) is positioned on the Plane of rotation of isolation earthing switch moving contact (106).
2, gas isolated combination switch device according to claim 1 is characterized in that: isolate ground unit (8) comprise an isolating switch (DS1) that is connected on the main conductive circuit and be connected main conductive circuit and ground between an earthed switch (ES1).
3, gas isolated combination switch device according to claim 1 is characterized in that: isolate ground unit (11) and comprise the isolating switch (DS1, DS2) that is connected two parallel connections on the main conductive circuit and be connected a earthed switch (ES1) between main conductive circuit and the ground.
4, gas isolated combination switch device according to claim 1 is characterized in that: the entrance bushing that holds high pressure inlet wire binding post that is connected with the isolation ground unit is one.
5, gas isolated combination switch device according to claim 1 is characterized in that: the entrance bushing that holds high pressure inlet wire binding post that is connected with the isolation ground unit is two.
6, gas isolated combination switch device according to claim 1 is characterized in that: be provided with current transformer (7,10) between breaker unit (5) and isolation ground unit (8,11).
7, gas isolated combination switch device according to claim 1 is characterized in that: support (6) and operation cabinet (13) are installed below breaker unit (5).
8, gas isolated combination switch device according to claim 1 is characterized in that: an opening of housing (102) is provided with pressure relief device (108).
9, gas isolated combination switch device according to claim 1 is characterized in that: the moving contact of high speed grounding switch (102A) is connected with operating mechanism (101) by guide holder (109).
CNB2007100539430A 2007-02-02 2007-02-02 Gas isolated combination switch device Active CN100563070C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2007100539430A CN100563070C (en) 2007-02-02 2007-02-02 Gas isolated combination switch device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2007100539430A CN100563070C (en) 2007-02-02 2007-02-02 Gas isolated combination switch device

Publications (2)

Publication Number Publication Date
CN101013800A CN101013800A (en) 2007-08-08
CN100563070C true CN100563070C (en) 2009-11-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2007100539430A Active CN100563070C (en) 2007-02-02 2007-02-02 Gas isolated combination switch device

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105551849B (en) * 2016-01-20 2018-08-17 博纳方格(天津)电气设备有限公司 Every connecing stacked switch
CN105870827A (en) * 2016-05-12 2016-08-17 山东泰开高压开关有限公司 Compact type 800-kV compound combined electrical appliance

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
高压混合技术开关设备. 李建基.华通技术,第4期. 2005
高压混合技术开关设备. 李建基.华通技术,第4期. 2005 *

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C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: STATE ELECTRIC NET CROP.

Effective date: 20130417

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20130417

Address after: South East of Pingdingshan city in Henan province 467001 No. 22

Patentee after: Pinggao Electric Co., Ltd., Henan

Patentee after: State Grid Corporation of China

Address before: South East Pingdingshan City, Henan province 467001 City, No. 22

Patentee before: Pinggao Electric Co., Ltd., Henan