CN101964269B - Conversion-drum three-position isolating mode and isolating switch - Google Patents
Conversion-drum three-position isolating mode and isolating switch Download PDFInfo
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- CN101964269B CN101964269B CN 201010526224 CN201010526224A CN101964269B CN 101964269 B CN101964269 B CN 101964269B CN 201010526224 CN201010526224 CN 201010526224 CN 201010526224 A CN201010526224 A CN 201010526224A CN 101964269 B CN101964269 B CN 101964269B
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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
Technical field
The present invention relates to a kind of electric component operational mode and apparatus structure, refer in particular to isolation method and isolating switch in the large electric current isolation of multiposition in a kind of railway locomotive, the metro traction electrical system main circuit, it is specially adapted in different kinds of railways locomotive, the metro traction electrical system in the large electric current isolation of the multiposition main circuit.
Background technology
Isolating switch is as a main components that is applied to insulated metal switchgear in the large electric current isolation of multiposition in railway locomotive, the metro traction electrical system main circuit, what existing isolating switch mainly used is chopper 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 large current knife switch.
2. contact position electric current shrinks greatly, and dynamic stability is relatively poor.
3. logical loading capability is limited, the large electric current of difficult realization.
4. in the frequent operation situation, contact abrasion is larger, and contact 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 wire.Therefore need to be improved this.
Summary of the invention
Purpose of the present invention is exactly the deficiency for existing isolating switch, propose in a kind of buffer circuit metal switch apparatus that is applied to railway locomotive, the large 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 complex as a whole, when realizing connection, isolation, ground connection three functions, reduced parts number, reduce manufacturing cost, improved 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 three position isolating modes, the structural change change by changing the upper copper bus-bar of drum and the contact area between the fingertip and insulation distance switch on and off large electric current and high voltage.Described isolation method is to realize the isolation operation of three positions by changing drum; The operational mode of described three positions isolation 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 only have two circuit to connect disconnecting switch operation; One the tunnel is the 1500V high-tension circuit, is connected by isolating switch the second main contact and the 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 the 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.The first main contact, the 3rd main contact and the 7th auxiliary contact disconnect, and namely the traction invertor circuit disconnects, the counnter attack diode-isolated.
Workshop powering mode: disconnecting switch operation is supplied current potential to the workshop, make isolating switch only have 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.
The conversion-drum three position spacer assemblys that propose according to said method are: a kind of conversion-drum three-positions disconnector, comprise mounting panel, support, fingertip, conversion drum, copper bar, handle and chain contact, and 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; Conversion drum is installed between two mounting panels, is furnished with the copper contact on the conversion drum, the conversion drum can Arbitrary Rotation; 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 three position isolating modes, realize the insulation request of operational mode, ground connection pattern and workshop powering mode, as a main components that is applied to insulated metal switchgear in the large electric current isolation of multiposition in railway locomotive, the metro traction electrical system main circuit, 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 easily realized.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 complex as a whole, when realizing connection, isolation, ground connection three functions, reduced parts number, reduced manufacturing cost, the reliability of equipment also obtains larger raising.
Description of drawings
Fig. 1 is that isolating switch of the present invention is at the main circuit diagram of operation position;
Fig. 2 is that isolating switch of the present invention is at the main circuit diagram of ground connection position;
Fig. 3 is that isolating switch of the present invention is at the main circuit diagram of position, workshop;
Fig. 4 is isolating switch interlock diagram of the present invention;
Fig. 5 is isolating switch structural front view of the present invention;
Fig. 6 is 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, can find out to the present invention relates to a kind of conversion-drum three position isolating modes, the structural change change by changing the upper copper bus-bar of drum and the contact area between the fingertip and insulation distance switch on and off large electric current and high voltage.Described isolation method is to realize the isolation operation of three positions by changing drum; The operational mode of described three positions isolation 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 only have two circuit to connect disconnecting switch operation QS1; One the tunnel is the 1500V high-tension circuit, is connected by isolating switch the second main contact and the 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 the 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.The first main contact, the 3rd main contact and the 7th auxiliary contact disconnect, and namely the traction invertor circuit disconnects, the counnter attack diode-isolated.
Workshop powering mode: disconnecting switch operation QS1 is supplied current potential to the workshop, make isolating switch only have 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.
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 | |
| | Position | 1 | 1-2，6-7 | 3，4，5 |
| The workshop | Position | 3 | 5-6，2-3 | 1，4，7 |
| The ground | Position | 2 | Nothing | 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.
The conversion-drum three position spacer assemblys that propose according to said method are shown in accompanying drawing 5-6: a kind of conversion-drum three-positions disconnector, comprise installation panel 1, mounting base 2, 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 mounting base 2 are by support 4 and draw screw rod 3 to be connected and fixed to have formed the structural framing of switch; Conversion drum 5 is installed between installation panel 1 and mounting base 2, be furnished with copper contact 9 on the conversion drum 5, conversion drum 5 is installed on the axle 7, axle 7 is installed on installation panel 1 and the mounting base 2 by bearing 6 and 14 again, 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 be installed, on the rotary drum operating device 8 with conversion drum positioner 13; The conversion drum can be by the center line Arbitrary Rotation of rotary drum operating device 8 around 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 connected 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 complex as a whole, when realizing connection, isolation, ground connection three functions, reduced parts number, reduced manufacturing cost, the reliability of equipment also obtains larger raising.
Claims (4)
1. conversion-drum three position partition methods is characterized in that: described partition 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 three position partition methods as claimed in claim 1, it is characterized in that: described operational mode is: to the operation position, make isolating switch only have two circuit to connect disconnecting switch operation (QS1); One the tunnel is the 1500V high-tension circuit, is connected by isolating switch the second main contact and the 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 three position partition 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 the 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, an end ground connection of D.C. contactor (K01); The first main contact, the 3rd main contact and the 7th auxiliary contact disconnect, and namely the traction invertor circuit disconnects, the counnter attack diode-isolated.
4. a kind of conversion-drum three position partition methods as claimed in claim 1, it is characterized in that: described workshop powering mode is: with disconnecting switch operation (QS1) to the workshop for current potential, make isolating switch only have 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010526224 CN101964269B (en) | 2010-11-01 | 2010-11-01 | Conversion-drum three-position isolating mode and isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010526224 CN101964269B (en) | 2010-11-01 | 2010-11-01 | Conversion-drum three-position isolating mode and isolating switch |
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| Publication Number | Publication Date |
|---|---|
| CN101964269A CN101964269A (en) | 2011-02-02 |
| CN101964269B true CN101964269B (en) | 2013-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010526224 Active CN101964269B (en) | 2010-11-01 | 2010-11-01 | Conversion-drum three-position isolating mode and isolating switch |
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Families Citing this family (5)
| 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 |
| 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 |
| 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 |
| CN111645708A (en) * | 2019-03-04 | 2020-09-11 | 中车大连电力牵引研发中心有限公司 | Change-over switch control device, change-over switch and rail vehicle |
| CN112885637B (en) * | 2021-01-13 | 2022-12-13 | 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)
| 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 | ֱ | 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 |
-
2010
- 2010-11-01 CN CN 201010526224 patent/CN101964269B/en active Active
Patent Citations (4)
| 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 | ֱ | 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 |
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| CN101964269A (en) | 2011-02-02 |
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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. |