CN104036985B - A kind of earthed switch of double-fracture circuit breaker - Google Patents
A kind of earthed switch of double-fracture circuit breaker Download PDFInfo
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- CN104036985B CN104036985B CN201410252463.7A CN201410252463A CN104036985B CN 104036985 B CN104036985 B CN 104036985B CN 201410252463 A CN201410252463 A CN 201410252463A CN 104036985 B CN104036985 B CN 104036985B
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- circuit breaker
- fracture
- drive shaft
- fracture circuit
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Abstract
The invention discloses a kind of earthed switch of double-fracture circuit breaker, comprise earthed switch, installing connecting rods transmission mechanism on the final drive shaft of earthed switch.Double-fracture circuit breaker both sides high-voltage earthing during earthed switch operation, jointed gear unit connects final drive shaft and counter drive shaft, final drive shaft is arranged on earthed switch, and counter drive shaft is arranged on the mounting base of double-fracture circuit breaker, connects copper bar and the outlet of double-fracture circuit breaker is connected.The present invention adds jointed gear unit on the basis of earthed switch transmission mechanism, after circuit breaker disjunction, make earthing the line of " 1+1 " double-fracture circuit breaker ground connection simultaneously by link transmission, both guarantee the personal safety of maintainer, decrease operation cost and the wasting of resources simultaneously.
Description
Technical field
The invention belongs to breaker technical field, relate to a kind of earthed switch, be specifically related to a kind of earthed switch of double-fracture circuit breaker.
Background technology
High voltage ground switch coordinates vacuum circuit-breaker to be widely used in railway harmonious electric locomotive, motor train unit.Its major function is embodied in when carrying out locomotive inspection, maintenance and repair, the high-tension circuit ground connection of vacuum circuit-breaker both sides, ensureing the safety operation of locomotive, and ensure the personal safety of staff, is railway harmonious electric locomotive, the indispensable High-Voltage Electrical Appliances of motor train unit.Vacuum circuit-breaker is different on the locomotive of different automobile types, the different mode of connection.The supporting earthed switch of " 1+1 " double-fracture circuit breaker then needs after main circuit breaker disconnects, if " 1+1 " double-fracture open circuit parallel connection uses, earthed switch is then circuit breaker both sides ground connection simultaneously, if the open circuit of " 1+1 " double-fracture is used alternatingly, wherein one for cut-offfing, another is then for isolation, and earthed switch is then circuit breaker both sides independent grounding.Every platform locomotive only arranges 1 earthed switch, is realized two on high-tension side grounding functions of circuit breaker of " 1+1 " double-fracture as required by 1 earthed switch.
Summary of the invention
The object of the invention is to overcome above-mentioned technological difficulties, providing one can the earthed switch of simultaneously ground connection " 1+1 " double-fracture circuit breaker.
For achieving the above object, the technical solution used in the present invention is: comprise the earthed switch below the double-fracture circuit breaker be fixed on mounting base and the end of incoming cables fixed contact being arranged at double-fracture circuit breaker; Earthed switch is provided with and matches the main earthing of double-fracture circuit breaker end of incoming cables ground connection with the end of incoming cables fixed contact of double-fracture circuit breaker; Mounting base is provided with and matches the secondary earthing of double-fracture breaker outgoing line end ground connection with the leading-out terminal fixed contact of double-fracture circuit breaker; Main earthing is connected with secondary earthing by jointed gear unit, and main earthing and secondary earthing synchronization action.
Described jointed gear unit comprises the final drive shaft be arranged on earthed switch, and main earthing is fixedly mounted on the end of final drive shaft; Mounting base is provided with secondary rotation axis, final drive shaft is connected with counter drive shaft by connecting rod.
The two ends of described connecting rod are all fixedly connected with counter drive shaft with final drive shaft by connecting lever.
Described double-fracture circuit breaker comprises two the double-fracture circuit breakers be arranged in parallel; The end of incoming cables of two double-fracture circuit breakers is connected copper bar with leading-out terminal by two and is in parallel; The connection copper bar of two double-fracture circuit breaker ends of incoming cables is provided with and matches the end of incoming cables fixed contact of two double-fracture circuit breaker end of incoming cables ground connection with the main earthing on final drive shaft; The connection copper bar of two double-fracture breaker outgoing line ends is provided with and matches the leading-out terminal fixed contact of two double-fracture breaker outgoing line end ground connection with the secondary earthing on counter drive shaft.
Described double-fracture circuit breaker comprises two the double-fracture circuit breakers be arranged in parallel; The end of incoming cables of two double-fracture circuit breakers is separately installed with end of incoming cables fixed contact, the leading-out terminal of two double-fracture circuit breakers connects copper bar by one and is in series even; The two ends of final drive shaft are all provided with matches with two end of incoming cables fixed contacts respectively by the main earthing of two double-fracture circuit breaker end of incoming cables ground connection; Connection copper bar is provided with and matches the leading-out terminal fixed contact of two double-fracture breaker outgoing line end ground connection with the secondary earthing on counter drive shaft.
Compared with prior art, the present invention has following beneficial effect:
The present invention adds and earthed switch connected links transmission mechanism on the mounting base of dual-port circuit breaker, makes earthed switch can meet the action simultaneously of multiple earthing, reaches the function of ground connection.The present invention adds jointed gear unit on the basis of high voltage ground switch operating mechanism, pass through link transmission, the earthing of final drive shaft is made to drive the earthing of counter drive shaft to rotate in closed, thus decrease the wasting of resources, and make the Operation and Maintenance of earthed switch more convenient succinct and reliable, both ensure that maintainer's safety operation, decrease operation cost and the wasting of resources simultaneously.
Accompanying drawing explanation
Fig. 1 is that double-fracture circuit breaker of the present invention parallel connection uses ground connection vertical view simultaneously;
Fig. 2 is that double-fracture circuit breaker of the present invention is used alternatingly independent grounding vertical view;
Fig. 3 is double-fracture circuit breaker of the present invention matingly switch-side view.
Wherein, 1 is earthed switch; 2 is connecting rod; 3 is final drive shaft; 4 is counter drive shaft; 5 is double-fracture circuit breaker; 6 for connecting copper bar.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
See Fig. 1 to Fig. 3, the present invention includes the earthed switch 1 below the double-fracture circuit breaker 5 be fixed on mounting base and the end of incoming cables fixed contact being arranged at double-fracture circuit breaker 5; Earthed switch 1 is provided with and matches the main earthing of double-fracture circuit breaker 5 end of incoming cables ground connection with the end of incoming cables fixed contact of double-fracture circuit breaker 5; Mounting base is provided with and matches the secondary earthing of double-fracture circuit breaker 5 leading-out terminal ground connection with the leading-out terminal fixed contact of double-fracture circuit breaker 5; Main earthing is connected with secondary earthing by jointed gear unit, and main earthing and secondary earthing synchronization action.Jointed gear unit comprises the final drive shaft 3 be arranged on earthed switch 1, and main earthing is fixedly mounted on the end of final drive shaft 3; Mounting base is provided with secondary rotation axis 4, final drive shaft 3 is connected with counter drive shaft 4 by connecting rod 2.The two ends of connecting rod 2 are all fixedly connected with counter drive shaft 4 with final drive shaft 3 by connecting lever.
When two double-fracture circuit breaker parallel connections use while during ground connection:
The end of incoming cables of two double-fracture circuit breakers is connected copper bar 6 with leading-out terminal by two and is in parallel; The connection copper bar of two double-fracture circuit breaker ends of incoming cables is provided with and matches the end of incoming cables fixed contact of two double-fracture circuit breaker end of incoming cables ground connection with the main earthing on final drive shaft 3; The connection copper bar of two double-fracture breaker outgoing line ends is provided with and matches the leading-out terminal fixed contact of two double-fracture breaker outgoing line end ground connection with the secondary earthing on counter drive shaft 4.
When two double-fracture circuit breakers are used alternatingly independent grounding:
The end of incoming cables of two double-fracture circuit breakers is separately installed with end of incoming cables fixed contact, the leading-out terminal of two double-fracture circuit breakers connects copper bar 6 company of being in series by one; The two ends of final drive shaft 3 are all provided with matches with two end of incoming cables fixed contacts respectively by the main earthing of two double-fracture circuit breaker end of incoming cables ground connection; Connection copper bar 6 is provided with and matches the leading-out terminal fixed contact of two double-fracture breaker outgoing line end ground connection with the secondary earthing on counter drive shaft 4.
Principle of the present invention and the course of work:
The present invention includes earthed switch 1, installing connecting rods transmission mechanism 2 on the final drive shaft 3 of earthed switch 1.Double-fracture circuit breaker 5 both sides high-voltage earthing when earthed switch 1 operates, jointed gear unit 2 connects final drive shaft 3 and counter drive shaft 4, final drive shaft 3 is arranged on earthed switch 1, counter drive shaft 4 is arranged on the mounting base of double-fracture circuit breaker 5, connects copper bar 6 and the outlet of double-fracture circuit breaker 5 is connected.This jointed gear unit 2 designs transmission crank arm respectively on final drive shaft 3 and counter drive shaft 4, and because final drive shaft 3 is different with the corner of counter drive shaft 4, the connecting lever of design different radiuses of rotation realizes simultaneous operation.As shown in Figure 1, when " 1+1 " double-fracture circuit breaker needs in parallel use while during ground connection, can simultaneously both sides high-voltage earthing.As shown in Figure 2, when " 1+1 " double-fracture circuit breaker needs to be used alternatingly independent grounding, can simultaneously circuit breaker both sides independent grounding.Application of the present invention makes the Operation and Maintenance of earthed switch more convenient succinct and reliable, both ensure that maintainer's safety operation, and has decreased operation cost and the wasting of resources simultaneously.
Above content is only and technological thought of the present invention is described; protection scope of the present invention can not be limited with this; every technological thought proposed according to the present invention, any change that technical scheme basis is done, within the protection range all falling into claims of the present invention.
Claims (5)
1. an earthed switch for double-fracture circuit breaker, is characterized in that: comprise the earthed switch (1) below the double-fracture circuit breaker (5) be fixed on mounting base and the end of incoming cables fixed contact being arranged at double-fracture circuit breaker (5); Earthed switch (1) is provided with and matches the main earthing of double-fracture circuit breaker (5) end of incoming cables ground connection with the end of incoming cables fixed contact of double-fracture circuit breaker (5); Mounting base is provided with and matches the secondary earthing of double-fracture circuit breaker (5) leading-out terminal ground connection with the leading-out terminal fixed contact of double-fracture circuit breaker (5); Main earthing is connected with secondary earthing by jointed gear unit, and main earthing and secondary earthing synchronization action.
2. the earthed switch of double-fracture circuit breaker according to claim 1, it is characterized in that: described jointed gear unit comprises the final drive shaft (3) be arranged on earthed switch (1), and main earthing is fixedly mounted on the end of final drive shaft (3); Mounting base is provided with secondary rotation axis (4), final drive shaft (3) is connected with counter drive shaft (4) by connecting rod (2).
3. the earthed switch of double-fracture circuit breaker according to claim 2, is characterized in that: the two ends of described connecting rod (2) are all fixedly connected with counter drive shaft (4) with final drive shaft (3) respectively by connecting lever.
4. the earthed switch of the double-fracture circuit breaker according to Claims 2 or 3, is characterized in that: described double-fracture circuit breaker (5) comprises two the double-fracture circuit breakers be arranged in parallel; The end of incoming cables of two double-fracture circuit breakers is connected copper bar (6) with leading-out terminal by two and is in parallel; The connection copper bar of two double-fracture circuit breaker ends of incoming cables is provided with and matches the end of incoming cables fixed contact of two double-fracture circuit breaker end of incoming cables ground connection with the main earthing on final drive shaft (3); The connection copper bar of two double-fracture breaker outgoing line ends is provided with and matches the leading-out terminal fixed contact of two double-fracture breaker outgoing line end ground connection with the secondary earthing on counter drive shaft (4).
5. the earthed switch of the double-fracture circuit breaker according to Claims 2 or 3, is characterized in that: described double-fracture circuit breaker (5) comprises two the double-fracture circuit breakers be arranged in parallel; The end of incoming cables of two double-fracture circuit breakers is separately installed with end of incoming cables fixed contact (9), the leading-out terminal of two double-fracture circuit breakers connects copper bar (6) by one and is in series; The two ends of final drive shaft (3) are all provided with matches the main earthing (8) of two double-fracture circuit breaker end of incoming cables ground connection with two end of incoming cables fixed contacts (9) respectively; Connection copper bar (6) is provided with and matches the leading-out terminal fixed contact (11) of two double-fracture breaker outgoing line end ground connection with the secondary earthing (10) on counter drive shaft (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410252463.7A CN104036985B (en) | 2014-06-09 | 2014-06-09 | A kind of earthed switch of double-fracture circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410252463.7A CN104036985B (en) | 2014-06-09 | 2014-06-09 | A kind of earthed switch of double-fracture circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104036985A CN104036985A (en) | 2014-09-10 |
| CN104036985B true CN104036985B (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410252463.7A Active CN104036985B (en) | 2014-06-09 | 2014-06-09 | A kind of earthed switch of double-fracture circuit breaker |
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| Country | Link |
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| CN (1) | CN104036985B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106786011B (en) * | 2016-12-15 | 2019-06-21 | 福开尔（西安）电气有限公司 | A kind of power locomotive top high-voltage electrical box |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102299493A (en) * | 2011-09-08 | 2011-12-28 | 云南云开电气股份有限公司 | Double circuit breaker electrified railway 27.5kV gas insulated switchgear (GIS) |
| CN102394197A (en) * | 2011-06-13 | 2012-03-28 | 苏肄鹏 | Combined-type high-voltage conversion switch |
| CN202178526U (en) * | 2011-05-27 | 2012-03-28 | 中国西电电气股份有限公司 | Composite gas insulated switchgear |
| CN203086051U (en) * | 2013-01-28 | 2013-07-24 | 中电新源智能电网科技有限公司 | Double-circuit breaker (DCB) type high-voltage composite electric appliance |
| CN203910571U (en) * | 2014-06-09 | 2014-10-29 | 福开尔（西安）电气有限公司 | Grounding switch for simultaneously grounding double-break circuit breakers |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004111250A (en) * | 2002-09-19 | 2004-04-08 | Mitsubishi Electric Corp | Switching device |
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2014
- 2014-06-09 CN CN201410252463.7A patent/CN104036985B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202178526U (en) * | 2011-05-27 | 2012-03-28 | 中国西电电气股份有限公司 | Composite gas insulated switchgear |
| CN102394197A (en) * | 2011-06-13 | 2012-03-28 | 苏肄鹏 | Combined-type high-voltage conversion switch |
| CN102299493A (en) * | 2011-09-08 | 2011-12-28 | 云南云开电气股份有限公司 | Double circuit breaker electrified railway 27.5kV gas insulated switchgear (GIS) |
| CN203086051U (en) * | 2013-01-28 | 2013-07-24 | 中电新源智能电网科技有限公司 | Double-circuit breaker (DCB) type high-voltage composite electric appliance |
| CN203910571U (en) * | 2014-06-09 | 2014-10-29 | 福开尔（西安）电气有限公司 | Grounding switch for simultaneously grounding double-break circuit breakers |
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| CN104036985A (en) | 2014-09-10 |
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