CN203119602U - Change-over switch of high-voltage box - Google Patents
Change-over switch of high-voltage box Download PDFInfo
- Publication number
- CN203119602U CN203119602U CN 201320072857 CN201320072857U CN203119602U CN 203119602 U CN203119602 U CN 203119602U CN 201320072857 CN201320072857 CN 201320072857 CN 201320072857 U CN201320072857 U CN 201320072857U CN 203119602 U CN203119602 U CN 203119602U
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- Prior art keywords
- switch
- supply line
- power supply
- change over
- supply
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Abstract
The utility model discloses a change-over switch of a high-voltage box. The change-over switch is characterized in that the change-over switch comprises a first switch, a second switch, a third switch, a fourth switch and a fifth switch; the first switch, the second switch, the third switch, the fourth switch and the fifth switch are three-position switches; the first switch is installed on a first power supply line; the second switch is installed on a second power supply line; the third switch is installed on a third power supply line; the first power supply line and the second power supply line are connected in parallel and are output lines of a first power supply; the second power supply line and the third power supply line are connected in parallel and are output lines of a second power supply; the first power supply line and the second power supply line are connected in series through a connecting circuit on which the fourth switch is arranged; and the first power supply line and the second power supply line are communicated with the ground. The change-over switch of the high-voltage box can simultaneously control power supply and grounding of a touch net power supply and a workshop power supply, is simple in structure and has diversified functions.
Description
Technical field
The utility model relates to a kind of high-voltaghe compartment change over switch.
Background technology
Railcar need switch electric power system, and normal operation by the power supply of workshop power supply, need switch to earthing position during maintenance by the power supply of touching net when the workshop is detected.Every road power supply is connected respectively to two main traction inversion casees simultaneously.Need to use two change over switches to finish above-mentioned functions in the former project, the change over switch function singleness, bulky, the maintenance cost height.During use, need to guarantee the synchronism of two switches, and two change over switches can't pass through same Operational System Control, so its complicated operation.
The utility model content
The purpose of this utility model is in order to overcome deficiency of the prior art, a kind of multi-functional high-voltaghe compartment change over switch to be provided.
For realizing above purpose, the utility model is achieved through the following technical solutions:
The high-voltaghe compartment change over switch is characterized in that, comprises first switch, second switch, the 3rd switch, the 4th switch and the 5th switch; First switch, second switch, the 3rd switch, the 4th switch and the 5th switch are three-position switch; First switch is installed in first supply line; Second switch is installed in second supply line; The 3rd switch is installed in the 3rd supply line; First supply line is in parallel with second supply line, and first supply line and second supply line are the outlet line of first power supply; Second supply line is in parallel with the 3rd supply line, and second supply line, the 3rd supply line are the outlet line of second source; First supply line connects by connecting circuit with second supply line, and the 4th switch is arranged on the connecting circuit; First supply line and second supply line all are communicated with ground connection, and described first supply line and ground connection are controlled by second switch; Described second supply line and ground connection are by first switch, the control of the 5th switch; The 3rd supply line is by the 3rd switch and the control of the 5th switch; The residual voltage of first supply line, second supply line and the 3rd supply line and ground connection are by the 4th switch, the control of the 5th switch.
Preferably, described first supply line is provided with first main fuse and first circuit breaker.
Preferably, described second supply line is provided with second main fuse and second circuit breaker.
Preferably, described the 3rd supply line is provided with the first busbar fuse.
Preferably, the circuit between second source and second supply line is provided with the second busbar fuse.
Preferably, described first power supply is the net-fault power supply; Second source is the workshop power supply.
High-voltaghe compartment change over switch in the utility model can be controlled net-fault power supply, the power supply of workshop power supply and ground connection simultaneously, and is simple in structure, diverse in function.The utility model volume, the deadweight little, simple to operate, maintenance cost is low.The utility model can adopt same Operational System Control easily, and it is synchronous, simple to operate to guarantee that a plurality of power supply circuits switch, and satisfies the functional requirement of car load power supply fully.
Description of drawings
Fig. 1 is the utility model circuit theory diagrams, i.e. the first power supply lines on-state schematic diagram.
Fig. 2 is second source supply line on-state schematic diagram.
Fig. 3 connects the ground state schematic diagram for supply line.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail:
As shown in Figure 1, the high-voltaghe compartment change over switch comprises first K switch 1, second switch K2, the 3rd K switch 3, the 4th K switch 4 and the 5th K switch 5.First K switch 1, second switch K2, the 3rd K switch 3, the 4th K switch 4 and the 5th K switch 5 are three-position switch.Net-fault power supply 1 is respectively the first traction case and the second traction case (not shown) power supply by first supply line 11 and second supply line 12; The first traction case and second draws that case is in parallel to be subjected to.First supply line 11 is in parallel with second supply line 12.First K switch 1 is installed in first supply line 11, controls switching on and off of first supply line 11.Second switch K2 is installed in second supply line 12, controls switching on and off of second supply line 12.The 3rd K switch 3 is installed in the 3rd supply line 13, controls switching on and off of the 3rd supply line 13.Second supply line 12 is in parallel with the 3rd supply line 13, and second supply line 12, the 3rd supply line 13 are that workshop power supply 2 is to the outlet line of traction case power supply.First supply line 11 connects by connecting circuit 14 with second supply line 12.The 4th K switch 4 is arranged on the connecting circuit 14.First supply line 11 and second supply line 12 all are communicated with ground connection, and described first supply line 11 controls by second switch K2 with ground connection; Described second supply line 12 controls by first K switch 1, the 5th K switch 5 with ground connection.The 3rd supply line 13 is by the 3rd K switch 3 and 5 controls of the 5th K switch.The residual voltage of first supply line 11, second supply line 12 and the 3rd supply line 13 and ground connection are by the 4th K switch 4,5 controls of the 5th K switch.
During use, as shown in Figure 1, when needing the net-fault power supply to be the railcar power supply, first K switch 1 and second switch K2 are in the P position, and namely first K switch 1 is connected P1, and second switch K2 connects P2.The 3rd K switch 3, the 4th K switch 4 and the 5th K switch 5 are in off-state, and namely the 3rd K switch 3, the 4th K switch 3 and the 5th K switch 5 are all unsettled.Net-fault power supply 1 is the power supply of traction case by first supply line 11 and second supply line 12.
As shown in Figure 2, when railcar need detect, then by 2 power supplies of workshop power supply.First K switch 1 and second switch K2 are in the W position, and namely first K switch 1 is connected W1, and second switch K2 connects W2, net-fault power supply 1 ground connection.The 3rd K switch 3, the 4th K switch 4 are in the W position, and namely the 3rd K switch 3 is connected W3, and the 4th K switch 4 is connected W4.The 5th K switch 5 is in vacant state.Workshop power supply 2 is the power supply of traction case by second supply line 12 and the 3rd supply line 13.
As shown in Figure 3, when railcar need overhaul, for guaranteeing safety, first supply line 11, second supply line 12 and the 3rd supply line 13 all need connect ground connection, then first K switch 1 is connected E1, and second switch K2 connects E2, and the 3rd K switch 3 is connected E3, the 4th K switch 4 is connected E4, and the 5th K switch 5 is connected E5.First supply line 11, second supply line 12 and the 3rd supply line 13 equal ground connection, and the residual voltage of traction case also can discharge by ground connection.
Embodiment in the utility model only is used for the utility model is described, and does not constitute the restriction to the claim scope, and other substituting of being equal in fact that those skilled in that art can expect are all in the utility model protection range.
Claims (6)
1. the high-voltaghe compartment change over switch is characterized in that, comprises first switch, second switch, the 3rd switch, the 4th switch and the 5th switch; First switch, second switch, the 3rd switch, the 4th switch and the 5th switch are three-position switch; First switch is installed in first supply line; Second switch is installed in second supply line; The 3rd switch is installed in the 3rd supply line; First supply line is in parallel with second supply line, and first supply line and second supply line are the outlet line of first power supply; Second supply line is in parallel with the 3rd supply line, and second supply line, the 3rd supply line are the outlet line of second source; First supply line connects by connecting circuit with second supply line, and the 4th switch is arranged on the connecting circuit; First supply line and second supply line all are communicated with ground connection, and described first supply line and ground connection are controlled by second switch; Described second supply line and ground connection are by first switch, the control of the 5th switch; The 3rd supply line is by the 3rd switch and the control of the 5th switch; The residual voltage of first supply line, second supply line and the 3rd supply line and ground connection are by the 4th switch, the control of the 5th switch.
2. high-voltaghe compartment change over switch according to claim 1 is characterized in that, described first supply line is provided with first main fuse and first circuit breaker.
3. high-voltaghe compartment change over switch according to claim 1 is characterized in that, described second supply line is provided with second main fuse and second circuit breaker.
4. high-voltaghe compartment change over switch according to claim 1 is characterized in that, described the 3rd supply line is provided with the first busbar fuse.
5. high-voltaghe compartment change over switch according to claim 4 is characterized in that, the circuit between second source and second supply line is provided with the second busbar fuse.
6. high-voltaghe compartment change over switch according to claim 1 is characterized in that, described first power supply is the net-fault power supply; Second source is the workshop power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320072857 CN203119602U (en) | 2013-02-08 | 2013-02-08 | Change-over switch of high-voltage box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320072857 CN203119602U (en) | 2013-02-08 | 2013-02-08 | Change-over switch of high-voltage box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203119602U true CN203119602U (en) | 2013-08-07 |
Family
ID=48899918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320072857 Expired - Fee Related CN203119602U (en) | 2013-02-08 | 2013-02-08 | Change-over switch of high-voltage box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203119602U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2013
- 2013-02-08 CN CN 201320072857 patent/CN203119602U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Fengxian District Jinhui Town money highway 201407 Shanghai City No. 411 Building 2 room 115 Patentee after: CHINA ROLLAY ELECTRIC (SHANGHAI) CO.,LTD. Address before: Fengxian District Jinhui Town money highway 201407 Shanghai City No. 411 Building 2 room 115 Patentee before: CHINA ROLLAY ELECTRIC (SHANGHAI) Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20220208 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |