CN101964269A - Conversion-drum three-position isolating mode and isolating switch - Google Patents

Conversion-drum three-position isolating mode and isolating switch Download PDF

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Publication number
CN101964269A
CN101964269A CN 201010526224 CN201010526224A CN101964269A CN 101964269 A CN101964269 A CN 101964269A CN 201010526224 CN201010526224 CN 201010526224 CN 201010526224 A CN201010526224 A CN 201010526224A CN 101964269 A CN101964269 A CN 101964269A
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China
Prior art keywords
drum
circuit
contact
conversion
mode
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CN 201010526224
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Chinese (zh)
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CN101964269B (en
Inventor
徐景秋
谭小明
赵清良
廖云
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Zhuzhou CRRC Times Electric Co Ltd
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Zhuzhou CSR Times Electric Co Ltd
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Priority to CN 201010526224 priority Critical patent/CN101964269B/en
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Publication of CN101964269B publication Critical patent/CN101964269B/en
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Abstract

The invention relates to a conversion-drum three-position isolating mode and a conversion-drum three-position isolating switch. In the isolating mode, three-position isolating operation is realized through a conversion drum; a three-position operating mode comprises an operating mode, a grounding mode and a workshop power supply mode; a pressure-regulating and large current flow contact is taken as a stationary contact in a conversion drum mode; and optional positioning is performed and the switch-on modes of contacts at a plurality of positions are combined as required by optionally rotating the conversion drum in a rotation space by 360 degrees so as to realize circuit switch-on and isolating operation in the operating mode, the grounding mode and the workshop power supply mode respectively. High-voltage large current and the circuit connecting state of each electric component of an input power supply circuit are controlled in the conversion-drum three-position isolating mode under the operating, grounding and workshop working conditions, isolating and grounding are compounded integrally, communicating, isolating and grounding functions are realized, the number of elements is reduced, manufacturing cost is lowered and equipment reliability is improved.

Description

A kind of conversion drum-type three position isolation method and isolating switches
Technical field
The present invention relates to a kind of electric component operational mode and apparatus structure, refer in particular to the big electric current of multiposition in a kind of railway locomotive, the metro traction electrical system and isolate isolation method and isolating switch in the main circuit, it is specially adapted in different kinds of railways locomotive, the metro traction electrical system the big electric current of multiposition and isolates in the main circuit.
Background technology
Isolating switch is isolated main components and parts of insulated metal switchgear in the main circuit as being applied to the big electric current of multiposition in railway locomotive, the metro traction electrical system, what existing isolating switch mainly used is disconnecting link switch and two positions change over switch, and existing knife switch technology exists some defectives and deficiency:
1. blade-like structure of contact terminal, non-uniform electric, insulation property are a greater impact, and have restricted the miniaturization of big current knife switch.
2. contact contact site electric current shrinks greatly, and dynamic stability is relatively poor.
3. logical loading capability is limited, the big electric current of difficult realization.
4. under the frequent operation situation, the contact wearing and tearing are bigger, and contact pressure is difficult to continue to guarantee.
5. the two positions of knife switch is well fixing, and three positions can't well be finished fixing.
6. to regulate be that use with material changes inconvenient on-the-spot the use to the pressure of knife switch.
And the connection of the circuit of two positions change over switch is too simple, can only realize the through and off of circuit, can not realize the multiple spot break-make of same lead.Therefore need be improved this.
Summary of the invention
Purpose of the present invention is exactly the deficiency at existing isolating switch, propose in a kind of buffer circuit metal switch equipment that is applied to railway locomotive, the big current switching of metro traction electrical system multiposition, under operation, ground connection, the three kinds of operating conditions in workshop, can control high-voltage great-current, the state of each electric component access circuit of input power circuit, to isolate, ground connection is compound for one, when realizing connection, isolation, three functions of ground connection, reduced parts number, reduce manufacturing cost, improved the isolation method and the isolating switch of the reliability of equipment.
The technical solution adopted for the present invention to solve the technical problems is: a kind of conversion drum-type three position isolation methods, and go up the structural change change of copper bus-bar and the contact area between the fingertip and insulation distance and switch on and off big electric current and high voltage by changing drum.Described isolation method is to realize that by changing drum three positions isolate operation; The operational mode that described three positions isolate operation is respectively operational mode, ground connection pattern and workshop powering mode, utilizes the conversion of conversion drum fingertip contact, allows undertake that pressure is regulated and the circulation large current contact becomes fixed contact, makes things convenient for pressure to regulate.Any rotation of the revolution space by conversion drum 360 ° of angles can be located arbitrarily and the combination of multipoint contact getting type as required, realizes that respectively the circuit of operational mode, ground connection pattern and workshop powering mode is connected and isolated operation.Wherein:
Operational mode: to the operation position, make isolating switch have only two circuit to connect disconnecting switch operation; One the tunnel is the 1500V high-tension circuit, is connected by isolating switch second main contact and first main contact, is communicated with the traction invertor circuit, and another road is connected by isolating switch the 6th auxiliary contact and the 7th auxiliary contact, is communicated with auxiliary power circuit, and other circuit disconnect.
Ground connection pattern: disconnecting switch operation to the ground connection position, is made second main contact of high-tension circuit, the 4th auxiliary contact, the 5th auxiliary contact and the 6th auxiliary contact ground connection, i.e. pantagraph current collector line-to-ground, accessory power supply circuit ground connection, an end ground connection of D.C. contactor.First main contact, the 3rd main contact and the 7th auxiliary contact disconnect, and promptly the traction invertor circuit disconnects, the counnter attack diode-isolated.
Workshop powering mode:, make isolating switch have only two circuit to connect with the disconnecting switch operation position that powers to the workshop; One the tunnel is that the 5th auxiliary contact and the 6th auxiliary contact are connected, and is communicated with workshop circuit and auxiliary circuit, and another road second main contact and the 3rd main contact are connected, and make the pantagraph current collector circuit ground, and other circuit disconnect.
According to the conversion drum-type three position spacer assemblys that said method proposed be: a kind of conversion drum-type three-positions disconnector, comprise mounting panel, support, fingertip, conversion drum, copper bar, handle and chain contact, the wiring of chain contact is drawn by binding post; Mounting panel has two of panel and base plates, by support with draw screw rod to be connected and fixed to have formed the structural framing of switch; The conversion drum is installed between two mounting panels, is furnished with the copper contact on the conversion drum, the conversion drum can arbitrarily angledly rotate; Be fixed with copper bar and fingertip on the support, connected by the copper soft connection device between copper bar and the fingertip, connection connects one to one by predetermined circuit requirement (operational mode, ground connection pattern and workshop powering mode) for fingertip and rotary drum contact.
The invention has the beneficial effects as follows: by conversion drum-type three position isolation methods, realize the insulation request of operational mode, ground connection pattern and workshop powering mode, isolate main components and parts of insulated metal switchgear in the main circuit as being applied to the big electric current of multiposition in railway locomotive, the metro traction electrical system, its main feature is simple in structure, manufacture craft requires low, it is little that pressure is kept the structure angle, and corresponding electrical property is realized easily.Under operation, ground connection, the three kinds of operating conditions in workshop, the control high-voltage great-current, the state of each electric component access circuit of input power circuit, to isolate, ground connection is compound for one, when realizing connection, isolation, three functions of ground connection, reduced parts number, reduced manufacturing cost, the reliability of equipment also obtains bigger raising.
Description of drawings
Fig. 1 is the main circuit diagram of isolating switch of the present invention in the operation position;
Fig. 2 is the main circuit diagram of isolating switch of the present invention in the ground connection position;
Fig. 3 is the main circuit diagram of isolating switch of the present invention in the position, workshop;
Fig. 4 is an isolating switch interlock diagram of the present invention;
Fig. 5 is an isolating switch structural front view of the present invention;
Fig. 6 is an isolating switch structure B-B cutaway view of the present invention.
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
Referring to accompanying drawing 1-3, the present invention relates to a kind of conversion drum-type three position isolation methods as can be seen, go up the structural change change of copper bus-bar and the contact area between the fingertip and insulation distance and switch on and off big electric current and high voltage by changing drum.Described isolation method is to realize that by changing drum three positions isolate operation; The operational mode that described three positions isolate operation is respectively operational mode, ground connection pattern and workshop powering mode, utilizes the conversion of conversion drum fingertip contact, allows undertake that pressure is regulated and the circulation large current contact becomes fixed contact, makes things convenient for pressure to regulate.Any rotation of the revolution space by conversion drum 360 ° of angles can be located arbitrarily and the combination of multipoint contact getting type as required, realizes that respectively the circuit of operational mode, ground connection pattern and workshop powering mode is connected and isolated operation.Wherein:
Operational mode: to the operation position, make isolating switch have only two circuit to connect disconnecting switch operation QS1; One the tunnel is the 1500V high-tension circuit, is connected by isolating switch second main contact and first main contact, is communicated with the traction invertor circuit, and another road is connected by isolating switch the 6th auxiliary contact and the 7th auxiliary contact, is communicated with auxiliary power circuit, and other circuit disconnect.
Ground connection pattern: disconnecting switch operation QS1 to the ground connection position, is made second main contact of high-tension circuit, the 4th auxiliary contact, the 5th auxiliary contact and the 6th auxiliary contact ground connection, be pantagraph current collector line-to-ground, accessory power supply circuit ground connection, the end ground connection of D.C. contactor K01.First main contact, the 3rd main contact and the 7th auxiliary contact disconnect, and promptly the traction invertor circuit disconnects, the counnter attack diode-isolated.
Workshop powering mode:, make isolating switch have only two circuit to connect with the disconnecting switch operation QS1 position that powers to the workshop; One the tunnel is that the 5th auxiliary contact and the 6th auxiliary contact are connected, and is communicated with workshop circuit and auxiliary circuit, and another road second main contact and the 3rd main contact are connected, and make the pantagraph current collector circuit ground, and other circuit disconnect.
The state of each electric component access circuit of input power circuit is as shown in the table:
Function On off state The circuit that is access in The circuit that is not access in
Operational mode Position 1 1-2,6-7 3,4,5
The workshop powering mode Position 3 5-6,2-3 1,4,7
The ground connection pattern Position 2 Do not have Pantagraph current collector line-to-ground accessory power supply circuit ground connection traction invertor system disconnects the workshop power ground
Isolating switch interlock circuit of the present invention as shown in Figure 4.
According to conversion drum-type three position spacer assemblys that said method proposed shown in accompanying drawing 5-6: a kind of conversion drum-type three-positions disconnector, comprise installation panel 1, base plate 2 be installed, support 4, fingertip 15, conversion drum 5, copper bar 10,11 and 12 and rotary drum operating device 8, the wiring of fingertip 15 is drawn by binding post; Installation panel 1 and base plate 2 is installed by support 4 with draw screw rod 3 to be connected and fixed to have formed the structural framing of switch; Between installation panel 1 and installation base plate 2, conversion drum 5 is installed, be furnished with copper contact 9 on the conversion drum 5, conversion drum 5 is installed on the axle 7, axle 7 is installed in installation panel 1 by bearing 6 and 14 again and installs on the base plate 2, lean on 1 one of installation panels in axle 7, be positioned on the outer mandrel segment of installation panel 1 rotary drum operating device 8 is installed, have conversion drum positioner 13 on the rotary drum operating device 8; The conversion drum can be by rotary drum operating device 8 around the arbitrarily angled rotation of the center line of axle 7; Be fixed with copper bar 10,11 and 12 on the support 4, copper bar 10,11 and 12 leading sections accompany fingertip 15, copper bar 10,11 and 12 and fingertip 15 between connect by copper soft connection device 16, the copper contact 9 on the contact on the fingertip 15 and the conversion drum connects one to one connection by predetermined circuit requirement (operational mode, ground connection pattern and workshop powering mode).
Under above various operating conditions, the state of each electric component access circuit of input power circuit, to isolate, ground connection is compound for one, when realizing connection, isolation, three functions of ground connection, reduced parts number, reduced manufacturing cost, the reliability of equipment also obtains bigger raising.

Claims (8)

1. change drum-type three position isolation methods for one kind, it is characterized in that: described isolation method is to realize the isolation operation of three positions by changing drum; The operational mode of described three positions is respectively operational mode, ground connection pattern and workshop powering mode, adopts the form of conversion drum, allows undertake that pressure is regulated and the circulation large current contact becomes fixed contact; Any rotation of the revolution space by conversion drum 360 ° of angles can be located arbitrarily and the combination of multipoint contact getting type as required, realizes that respectively the circuit of operational mode, ground connection pattern and workshop powering mode is connected and isolated operation.
2. a kind of conversion drum-type three position isolation methods as claimed in claim 1, it is characterized in that: described operational mode is: to the operation position, make isolating switch have only two circuit to connect disconnecting switch operation QS1; One the tunnel is the 1500V high-tension circuit, is connected by isolating switch second main contact and first main contact, is communicated with the traction invertor circuit, and another road is connected by isolating switch the 6th auxiliary contact and the 7th auxiliary contact, is communicated with auxiliary power circuit, and other circuit disconnect.
3. a kind of conversion drum-type three position isolation methods as claimed in claim 1, it is characterized in that: described ground connection pattern is: disconnecting switch operation QS1 is arrived the ground connection position, make second main contact of high-tension circuit, the 4th auxiliary contact, the 5th auxiliary contact and the 6th auxiliary contact ground connection, be pantagraph current collector line-to-ground, accessory power supply circuit ground connection, the end ground connection of D.C. contactor K01; First main contact, the 3rd main contact and the 7th auxiliary contact disconnect, and promptly the traction invertor circuit disconnects, the counnter attack diode-isolated.
4. a kind of conversion drum-type three position isolation methods as claimed in claim 1, it is characterized in that: described workshop powering mode is: with the disconnecting switch operation QS1 position that powers to the workshop, make isolating switch have only two circuit to connect; One the tunnel is that the 5th auxiliary contact and the 6th auxiliary contact are connected, and is communicated with workshop circuit and auxiliary circuit, and another road second main contact and the 3rd main contact are connected, and make the pantagraph current collector circuit ground, and other circuit disconnect.
5. change the drum-type three-positions disconnector for one kind, it is characterized in that: comprise installation panel, installation base plate, support, fingertip, conversion drum, copper bar and rotary drum operating device, the wiring of fingertip is drawn by binding post; Mounting panel has two of panel and base plates, by support with draw screw rod to be connected and fixed to have formed the structural framing of switch; The conversion drum is installed between two mounting panels, is furnished with the copper contact on the conversion drum, the conversion drum can arbitrarily angledly rotate; Be fixed with copper bar and fingertip on the support, connected by the copper soft connection device between copper bar and the fingertip, fingertip and rotary drum contact are by the circuit requirement of the being scheduled to connection that connects one to one.
6. conversion drum-type three-positions disconnector as claimed in claim 5 is characterized in that: installation panel and base plate is installed by support with draw screw rod to be connected and fixed to have formed the structural framing of switch.
7. conversion drum-type three-positions disconnector as claimed in claim 5, it is characterized in that: the conversion drum is installed on the axle, axle again by Bearing Installation at installation panel with install on the base plate, lean on one of installation panel in axle, be positioned on the outer mandrel segment of installation panel the rotary drum operating device is installed, have conversion drum positioner on the rotary drum operating device; The conversion drum can be by the rotary drum operating device around the arbitrarily angled rotation of the center line of axle.
8. conversion drum-type three-positions disconnector as claimed in claim 5 is characterized in that: be fixed with copper bar on the support, the copper bar leading section accompanies fingertip, is connected by the copper soft connection device between copper bar and the fingertip.
CN 201010526224 2010-11-01 2010-11-01 Conversion-drum three-position isolating mode and isolating switch Active CN101964269B (en)

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Application Number Priority Date Filing Date Title
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CN101964269B CN101964269B (en) 2013-03-06

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102509657A (en) * 2011-11-21 2012-06-20 南车株洲电力机车有限公司 Isolation change-over switch for urban rail vehicle
CN108313074A (en) * 2017-12-29 2018-07-24 中车唐山机车车辆有限公司 Three-position switch control system and control method
CN108469549A (en) * 2018-03-20 2018-08-31 哈尔滨理工大学 Four electrode system of stator winding conductor bars in electrical machines surface resistivity multimetering and its measurement method
WO2020177262A1 (en) * 2019-03-04 2020-09-10 中车大连电力牵引研发中心有限公司 Changeover switch control apparatus, changeover switch and rail vehicle
CN112885637A (en) * 2021-01-13 2021-06-01 株洲中车时代电气股份有限公司 Conversion drum type three-position switch device and control method and system thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2332054Y (en) * 1998-03-13 1999-08-04 傅电明 Drum switch for trolleybus
CN1513086A (en) * 2001-06-07 2004-07-14 阿洛伊斯・沃本 Switchgear comprising an actuating shaft
CN2672826Y (en) * 2004-01-14 2005-01-19 西安沙尔特宝电气有限公司 Permanent change-over switch
CN2791844Y (en) * 2005-04-05 2006-06-28 何幼林 Excitation-free tap changer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2332054Y (en) * 1998-03-13 1999-08-04 傅电明 Drum switch for trolleybus
CN1513086A (en) * 2001-06-07 2004-07-14 阿洛伊斯・沃本 Switchgear comprising an actuating shaft
CN2672826Y (en) * 2004-01-14 2005-01-19 西安沙尔特宝电气有限公司 Permanent change-over switch
CN2791844Y (en) * 2005-04-05 2006-06-28 何幼林 Excitation-free tap changer

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102509657A (en) * 2011-11-21 2012-06-20 南车株洲电力机车有限公司 Isolation change-over switch for urban rail vehicle
CN108313074A (en) * 2017-12-29 2018-07-24 中车唐山机车车辆有限公司 Three-position switch control system and control method
CN108313074B (en) * 2017-12-29 2019-07-23 中车唐山机车车辆有限公司 Three-position switch control system and control method
CN108469549A (en) * 2018-03-20 2018-08-31 哈尔滨理工大学 Four electrode system of stator winding conductor bars in electrical machines surface resistivity multimetering and its measurement method
CN108469549B (en) * 2018-03-20 2020-06-19 哈尔滨理工大学 Motor stator bar surface resistivity multipoint measurement four-electrode system and measurement method thereof
WO2020177262A1 (en) * 2019-03-04 2020-09-10 中车大连电力牵引研发中心有限公司 Changeover switch control apparatus, changeover switch and rail vehicle
CN112885637A (en) * 2021-01-13 2021-06-01 株洲中车时代电气股份有限公司 Conversion drum type three-position switch device and control method and system thereof

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Address after: 412000 Hunan Province, Zhuzhou Shifeng District Tian Xin era Road No. 169

Patentee after: ZHUZHOU CRRC TIMES ELECTRIC Co.,Ltd.

Address before: 412000 Hunan Province, Zhuzhou Shifeng District Tian Xin era Road No. 169

Patentee before: ZHUZH CSR TIMES ELECTRIC Co.,Ltd.