CN104036985A - Grounding switch of double-break breaker - Google Patents
Grounding switch of double-break breaker Download PDFInfo
- Publication number
- CN104036985A CN104036985A CN201410252463.7A CN201410252463A CN104036985A CN 104036985 A CN104036985 A CN 104036985A CN 201410252463 A CN201410252463 A CN 201410252463A CN 104036985 A CN104036985 A CN 104036985A
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- Prior art keywords
- double
- circuit breaker
- fracture
- drive shaft
- fracture circuit
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Abstract
The invention discloses a grounding switch of a double-break breaker. The grounding switch comprises a grounding switch body, wherein a main driving shaft of the grounding switch body is provided with a connecting bar driving mechanism; when the grounding switch is operated, the two sides of the double-break breaker are grounded with high voltage, the connecting bar driving mechanism is connected with a main driving shaft and an auxiliary driving shaft, the main driving shaft is arranged on the grounding switch, the auxiliary driving shaft is arranged on a mounting base-plate of the double-break breaker and an outgoing line of the double-break breaker is accessed by the connecting copper bar. Based on a driving mechanism of the grounding switch, the connecting bar driving mechanism is additionally arranged, an incoming line and the outgoing line of the '1+1' double-break breaker can be grounded synchronously by driving a grounding cutter caused by the transmission of a connecting base, therefore, the personal safety of maintainers can be guaranteed, and the operational cost and resource cost can be reduced at the same time.
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 the harmonious electric locomotive of railway, motor train unit.Its major function is embodied in the time 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 staff's personal safety, is the harmonious electric locomotive of railway, the indispensable High-Voltage Electrical Appliances of motor train unit.Vacuum circuit-breaker is different on the locomotive of different automobile types, the different modes of connection.The supporting earthed switch of " 1+1 " double-fracture circuit breaker need to be after main circuit breaker disconnects, the in parallel use if " 1+1 " double-fracture opens circuit, earthed switch is circuit breaker both sides ground connection simultaneously, if opening circuit, " 1+1 " double-fracture is used alternatingly, wherein one for cut-offfing, another is for isolation, and earthed switch is circuit breaker both sides independent grounding.Every locomotive only arranges 1 earthed switch, realizes as required two on high-tension side grounding functions of circuit breaker of " 1+1 " double-fracture by 1 earthed switch.
Summary of the invention
The object of the invention is to overcome above-mentioned technological difficulties, the one earthed switch of ground connection " 1+1 " double-fracture circuit breaker is simultaneously provided.
For achieving the above object, the technical solution used in the present invention is: the earthed switch of the fixed contact below, end of incoming cables that comprises the double-fracture circuit breaker being fixed on mounting base and be arranged at double-fracture circuit breaker; On earthed switch, be provided with the end of incoming cables fixed contact of double-fracture circuit breaker and match the main earthing of double-fracture circuit breaker end of incoming cables ground connection; On mounting base, be provided with the leading-out terminal fixed contact of double-fracture circuit breaker and match the secondary earthing of double-fracture breaker outgoing line end ground connection; 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 being arranged on earthed switch, and main earthing is fixedly mounted on the end of final drive shaft; Secondary rotation axis is installed on mounting base, and 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 double-fracture circuit breakers that 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; On the connection copper bar of two double-fracture circuit breaker ends of incoming cables, be provided with and match with the main earthing on final drive shaft the end of incoming cables fixed contact of two double-fracture circuit breaker end of incoming cables ground connection; On the connection copper bar of two double-fracture breaker outgoing line ends, be provided with the secondary earthing on counter drive shaft and match the leading-out terminal fixed contact of two double-fracture breaker outgoing line end ground connection.
Described double-fracture circuit breaker comprises two double-fracture circuit breakers that be arranged in parallel; On the end of incoming cables of two double-fracture circuit breakers, be 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 respectively and match with two end of incoming cables fixed contacts the main earthing of two double-fracture circuit breaker end of incoming cables ground connection; Connect on copper bar and be provided with the secondary earthing on counter drive shaft and match the leading-out terminal fixed contact of two double-fracture breaker outgoing line end ground connection.
Compared with prior art, the present invention has following beneficial effect:
The present invention has increased the jointed gear unit that is connected with earthed switch on the mounting base of dual-port circuit breaker, makes earthed switch can meet multiple earthings and moves simultaneously, reaches the function of ground connection.The present invention has increased jointed gear unit on the basis of high voltage ground switch operating mechanism, pass through link transmission, make the earthing of final drive shaft in closed, drive the earthing of counter drive shaft to rotate, thereby reduce the wasting of resources, and the Operation and Maintenance that makes earthed switch is more convenient succinct and reliable, both ensure maintainer's safety operation, also reduced operation cost and the wasting of resources simultaneously.
Brief description of the drawings
Fig. 1 is the double-fracture circuit breaker of the present invention ground connection vertical view simultaneously that uses in parallel;
Fig. 2 is that double-fracture circuit breaker of the present invention is used alternatingly independent grounding vertical view;
Fig. 3 is that double-fracture circuit breaker of the present invention connects ground 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; 7 is mounting base; 8 is main earthing; 9 is end of incoming cables fixed contact; 10 is secondary earthing; 11 is leading-out terminal fixed contact.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Referring to Fig. 1 to Fig. 3, the earthed switch 1 of end of incoming cables fixed contact 9 belows that the present invention includes the double-fracture circuit breaker 5 being fixed on mounting base 7 and be arranged at double-fracture circuit breaker 5; On earthed switch 1, be provided with the end of incoming cables fixed contact 9 of double-fracture circuit breaker 5 and match the main earthing 8 of double-fracture circuit breaker 5 end of incoming cables ground connection; On mounting base 7, be provided with the leading-out terminal fixed contact 11 of double-fracture circuit breaker 5 and match the secondary earthing 10 of double-fracture circuit breaker 5 leading-out terminal ground connection; Main earthing 8 is connected with secondary earthing 10 by jointed gear unit, and main earthing 8 and secondary earthing 10 synchronization actions.Jointed gear unit comprises the final drive shaft 3 being arranged on earthed switch 1, and main earthing 8 is fixedly mounted on the end of final drive shaft 3; Secondary rotation axis 4 is installed on mounting base, and 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.
In the time of two double-fracture circuit breakers use in parallel while 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; On the connection copper bar of two double-fracture circuit breaker ends of incoming cables, be provided with and match with the main earthing 8 on final drive shaft 3 the end of incoming cables fixed contact 9 of two double-fracture circuit breaker end of incoming cables ground connection; On the connection copper bar of two double-fracture breaker outgoing line ends, be provided with the secondary earthing 10 on counter drive shaft 4 and match the leading-out terminal fixed contact 11 of two double-fracture breaker outgoing line end ground connection.
In the time that two double-fracture circuit breakers are used alternatingly independent grounding:
The leading-out terminal that is separately installed with fixed contact 9, two double-fracture circuit breakers in end of incoming cables on the end of incoming cables of two double-fracture circuit breakers connects copper bar 6 companies of being in series by one; The two ends of final drive shaft 3 are all provided with respectively and match with two end of incoming cables fixed contacts 9 the main earthing 8 of two double-fracture circuit breaker end of incoming cables ground connection; Connect on copper bar 6 and be provided with the secondary earthing 10 on counter drive shaft 4 and match the leading-out terminal fixed contact 11 of two double-fracture breaker outgoing line end ground connection.
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.When earthed switch 1 operates double-fracture circuit breaker 5 both sides high-voltage earthings, 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 outlet of double-fracture circuit breaker 5 is connected.This jointed gear unit 2 designs respectively transmission crank arm 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 is realized simultaneous operation.As shown in Figure 1, in the time that " 1+1 " double-fracture circuit breaker needs parallel connection use while ground connection, can be simultaneously both sides high-voltage earthing.As shown in Figure 2, in the time that " 1+1 " double-fracture circuit breaker need to be used alternatingly independent grounding, can be 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, has both ensured maintainer's safety operation, has also reduced operation cost and the wasting of resources simultaneously.
Above content is only explanation technological thought of the present invention; can not limit protection scope of the present invention with this; every technological thought proposing according to the present invention, any change of doing on technical scheme basis, within all falling into the protection range of the claims in the present invention book.
Claims (5)
1. an earthed switch for double-fracture circuit breaker, is characterized in that: the earthed switch (1) that comprises the double-fracture circuit breaker (5) being fixed on mounting base (7) and the end of incoming cables fixed contact (9) that is arranged at double-fracture circuit breaker (5) below; On earthed switch (1), be provided with the end of incoming cables fixed contact (9) of double-fracture circuit breaker (5) and match the main earthing (8) of double-fracture circuit breaker (5) end of incoming cables ground connection; On mounting base (7), be provided with the leading-out terminal fixed contact (11) of double-fracture circuit breaker (5) and match the secondary earthing (10) of double-fracture circuit breaker (5) leading-out terminal ground connection; Main earthing (8) is connected with secondary earthing (10) by jointed gear unit, and main earthing (8) and secondary earthing (10) 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) being arranged on earthed switch (1), and main earthing (8) is fixedly mounted on the end of final drive shaft (3); Secondary rotation axis (4) is installed on mounting base (7), and 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) by connecting lever.
4. according to the earthed switch of the double-fracture circuit breaker described in claim 2 or 3, it is characterized in that: described double-fracture circuit breaker (5) comprises two double-fracture circuit breakers that 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; On the connection copper bar of two double-fracture circuit breaker ends of incoming cables, be provided with the main earthing (8) on final drive shaft (3) and match the end of incoming cables fixed contact (9) of two double-fracture circuit breaker end of incoming cables ground connection; On the connection copper bar of two double-fracture breaker outgoing line ends, be provided with the secondary earthing (10) on counter drive shaft (4) and match the leading-out terminal fixed contact (11) of two double-fracture breaker outgoing line end ground connection.
5. according to the earthed switch of the double-fracture circuit breaker described in claim 2 or 3, it is characterized in that: described double-fracture circuit breaker (5) comprises two double-fracture circuit breakers that be arranged in parallel; On the end of incoming cables of two double-fracture circuit breakers, be separately installed with end of incoming cables fixed contact (9), 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 respectively and match with two end of incoming cables fixed contacts (9) the main earthing (8) of two double-fracture circuit breaker end of incoming cables ground connection; Connect on copper bar (6) and be provided with the secondary earthing (10) on counter drive shaft (4) and match the leading-out terminal fixed contact (11) of two double-fracture breaker outgoing line end ground connection.
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 true CN104036985A (en) | 2014-09-10 |
| CN104036985B CN104036985B (en) | 2016-02-24 |
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Family Applications (1)
| 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 |
Country Status (1)
| Country | Link |
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| CN (1) | CN104036985B (en) |
Cited By (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 (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004111250A (en) * | 2002-09-19 | 2004-04-08 | Mitsubishi Electric Corp | Switching device |
| 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) |
| 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 |
| 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 |
-
2014
- 2014-06-09 CN CN201410252463.7A patent/CN104036985B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004111250A (en) * | 2002-09-19 | 2004-04-08 | Mitsubishi Electric Corp | Switching device |
| 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 |
Cited By (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 |
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| Publication number | Publication date |
|---|---|
| CN104036985B (en) | 2016-02-24 |
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