CN220342105U - Intelligent combined switch cabinet for subway - Google Patents
Intelligent combined switch cabinet for subway Download PDFInfo
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- CN220342105U CN220342105U CN202321944075.6U CN202321944075U CN220342105U CN 220342105 U CN220342105 U CN 220342105U CN 202321944075 U CN202321944075 U CN 202321944075U CN 220342105 U CN220342105 U CN 220342105U
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- 230000001133 acceleration Effects 0.000 claims description 18
- 230000000007 visual effect Effects 0.000 claims description 17
- 238000012806 monitoring device Methods 0.000 claims description 15
- 238000004146 energy storage Methods 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 3
- 206010063385 Intellectualisation Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
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Abstract
The utility model relates to an intelligent combined switch cabinet for subways, which belongs to the field of urban rail transit traction power supply and comprises a first internet surfing isolating switch, a second internet surfing isolating switch, a first grounding switch and a second grounding switch; the first traction substation inlet wire is connected to the inlet end of the first internet access isolating switch through a cable; the outgoing end of the first Internet surfing isolating switch supplies power to the contact net or the contact rail through a cable, the incoming line of the traction substation is connected to the incoming end of the second Internet surfing isolating switch through a cable, the outgoing end of the second Internet surfing isolating switch supplies power to the contact net or the contact rail through a cable, the intelligent Internet surfing isolating switch further comprises a direct-current cross-over rapid breaker, one end of the direct-current cross-over rapid breaker is connected to the outgoing end of the first Internet surfing isolating switch, the other end of the direct-current cross-rapid breaker is connected to the outgoing end of the second Internet surfing isolating switch, and the direct-current cross-over rapid breaker is opened and closed and used for supplying power to the contact net or the contact rail or not. The feeder line of the traction substation forms an obvious breakpoint to the contact network, so that power supply is supported in a cross-region mode when faults occur.
Description
Technical Field
The utility model relates to the technical field related to urban rail transit traction power supply, in particular to an intelligent combined switch cabinet for subways.
Background
When most urban rail transit projects in China supply power to the contact network from the traction substation, direct current feeder lines of the traction substation and corresponding internet surfing isolating switches supply power to upper and lower lines on two sides respectively, a cross-region connecting switch is arranged to realize cross-region power supply under the condition of fault of the traction substation, the upper and lower lines adopt modes of the internet surfing isolating switch and the cross-region isolating switch, and most of the three isolating switches are integrated in a cabinet and placed in the traction substation.
When the line overhauls, the contact network (rail) is required to be subjected to electricity inspection and ground wire hanging operation at the two ends of the operation area after the contact network (rail) is in power failure, most of the lines are manually hung and detached, the coordinated operation amount of each specialty is large, the power failure maintenance and overhauling process is complicated, and the personnel configuration can not meet the matched operation requirements of power failure and ground wire hanging and detaching in many cases, so that the overhauling plan arrangement is likely to be seriously influenced, and the operation can not be fully and forcefully ensured.
When informatization, intellectualization and automation are highly developed, all industries are greatly advancing primary and secondary equipment to be integrated, the intellectualization of the equipment is realized, the machine acquisition inspection replaces manual inspection work, the labor cost of operation and maintenance can be greatly reduced, the error rate is reduced, the equipment is continuously monitored for 24 hours, the latent fault of the equipment is timely found, and the efficiency and the service life of equipment management are improved.
In summary, there is an urgent need for an intelligent combined switch cabinet for subways, which can be used for realizing the functions of forming obvious breakpoints, cross-region power supply, visual grounding, intelligent switch state monitoring and the like from a feeder line of a traction substation to a contact network (rail), reducing the number of cabinet bodies, reducing engineering investment, and ensuring convenient operation, safety and reliability.
Disclosure of Invention
In order to overcome the defects, the utility model provides the intelligent combined switch cabinet for the subway, which is used for realizing that the feeder line of the traction substation forms obvious break points and cross-region power supply to the contact network (rail) so as to improve the operation flexibility, the maintenance simplicity and the state early warning maintenance, and has great significance on the operation of the line.
In order to achieve the above object, the present utility model provides the following technical solutions:
an intelligent combined switch cabinet for subways comprises a first internet surfing isolating switch (1), a second internet surfing isolating switch (2), a first grounding switch (4) and a second grounding switch (5);
the first traction substation incoming line is connected to the incoming end of the first internet access isolating switch (1) through a cable; the outgoing end of the first internet surfing isolating switch (1) is used for supplying power to a contact net or a contact rail through a cable, the incoming line of a traction substation is connected to the incoming end of the internet surfing isolating switch (2) through the cable, the outgoing end of the internet surfing isolating switch (2) is used for supplying power to the contact net or the contact rail through the cable, the two-side downlink independent parallel power supply is realized, the intelligent electric power distribution system further comprises a cross-region direct current quick breaker (3), one end of the cross-region direct current quick breaker (3) is connected to the outgoing end of the first internet surfing isolating switch (1), the other end of the cross-region direct current quick breaker is connected to the outgoing end of the internet surfing isolating switch (2), and the cross-region direct current quick breaker (3) is opened and closed for supplying power to the contact net or the contact rail or not supplying power.
The system is characterized by further comprising an acceleration sensor (8) and a current sensor (9), wherein the acceleration sensor (8) is arranged on a brake movement mechanism of the first internet surfing isolating switch (1) and the second internet surfing isolating switch (2) for separating brake, and is used for monitoring the time of separating brake and switching brake on the brake movement mechanism of the first internet surfing isolating switch (1) and the second internet surfing isolating switch (2);
the current sensor (9) is arranged in the winding loop of the energy storage motor and is used for monitoring the current of the winding loop of the energy storage motor.
As a preferable scheme, the combined switch cabinet also comprises a combined switch cabinet body (13); the intelligent switch cabinet comprises a first internet surfing isolating switch (1), a second internet surfing isolating switch (2), a cross-region direct-current quick breaker (3), a first grounding switch (4), a second grounding switch (5), an intelligent monitoring IED (intelligent electronic device) (6), a visual monitoring device (7), an acceleration sensor (8), a current sensor (9), a voltage sensor (10) and a temperature sensor (11), wherein the acceleration sensor (9), the voltage sensor (10) and the temperature sensor (11) are integrated in a combined switch cabinet body (13).
As a preferable scheme, the voltage sensor (10) is arranged in a secondary chamber of the cabinet body (13), the positive electrode of the voltage sensor is connected to the positive busbar of the cabinet, and the negative electrode of the voltage sensor is connected to the negative busbar of the cabinet and is used for detecting the operation voltage of the busbar in the cabinet body.
Preferably, the temperature sensor (11) is installed outside the first internet surfing isolating switch (1), the second internet surfing isolating switch (2), the first grounding switch (4) and the second grounding switch (5) and is used for measuring the temperature of a contact point.
Preferably, the visual monitoring device (7) is used for acquiring and displaying data of the acceleration sensor (8), the current sensor (9), the voltage sensor (10) and the temperature sensor (11).
As a preferred scheme, the intelligent monitoring IED (6) is respectively connected with the visual monitoring device (7), the acceleration sensor (8), the current sensor (9), the voltage sensor (10) and the temperature sensor (11) for acquiring and displaying data.
Preferably, the power supply system further comprises a cross-region isolating switch (12), wherein the cross-region isolating switch (12) is connected to the cross-region direct current quick breaker (3) and the outlet end of the first internet-surfing isolating switch (1) and is used for supplying power to the overhead line or the contact rail of the fault section.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model provides an intelligent combined switch cabinet for subways, which integrates a plurality of isolating switches, direct-current quick breakers, grounding switches, intelligent monitoring IEDs, monitoring equipment, human-computer interface equipment and the like into a cabinet body, realizes multifunctional integration, has the functions of forming obvious break points, cross-region power supply, visual grounding, intelligent monitoring of switch states and the like by pulling a feeder line of a substation to a contact network (rail), reduces engineering investment, is convenient to operate, changes the problems of overhauling by manually hanging a grounding wire, cross-region complicated switching process and equipment faults and the like when overhauling for a long time through real-time monitoring of switch states, saves labor cost and improves operation efficiency.
Drawings
Fig. 1 is a wiring diagram of an intelligent combined switch cabinet for subways in embodiment 1 of the present utility model;
fig. 2 is a wiring diagram two of an intelligent combined switch cabinet for subways in embodiment 2 of the utility model.
Detailed Description
The present utility model will be described in further detail with reference to test examples and specific embodiments. It should not be construed that the scope of the above subject matter of the present utility model is limited to the following embodiments, and all techniques realized based on the present utility model are within the scope of the present utility model.
Example 1
The utility model discloses an intelligent combined switch cabinet wiring diagram for subways, which is shown in fig. 1 and comprises a first internet surfing isolating switch 1, a second internet surfing isolating switch 2, a direct-current fast cross-region breaker 3, a first grounding switch 4, a second grounding switch 5, an intelligent monitoring IED6, a visual monitoring device 7, an acceleration sensor 8, a current sensor 9, a voltage sensor 10, a temperature sensor 11 and a man-machine interface device 12 which are integrated in a combined switch cabinet body 13.
During normal operation, the traction substation inlet wire 1 is connected to the inlet end of the first internet surfing isolating switch 1 through a cable, the outlet end of the first internet surfing isolating switch 1 supplies power to the contact net (rail) through a cable, the traction substation inlet wire 2 is connected to the inlet end of the second internet surfing isolating switch 2 through a cable, the outlet end of the second internet surfing isolating switch 2 supplies power to the contact net (rail) through a cable, and independent parallel power supply on two sides in a descending mode is achieved.
When the traction equipment of the loop corresponding to the incoming line 1 or the incoming line 2 fails, an internet disconnecting switch corresponding to the power supply of the failed traction equipment is opened, the failed section is withdrawn, the direct current fast breaker 3 is closed, the overhead line (rail) of the failed section is supported for power supply, and the normal operation of the whole line is ensured.
When the faults of the traction equipment of the loop corresponding to the incoming line 1 or the incoming line 2 are released, the internet disconnecting switch corresponding to the power supply of the fault traction equipment is closed, the direct-current fast breaker 3 is disconnected, and the normal power supply is restored.
When the overhead line system (rail) overhauls, the first internet surfing isolating switch 1, the second internet surfing isolating switch 2 and the cross-region direct current quick breaker 3 are disconnected, the first grounding switch 4 and the second grounding switch 5 are closed, the visual monitoring device 7 is opened, and the opening and closing states of the first grounding switch 4 and the second grounding switch 5 are monitored through the visual monitoring device 7.
In the running process of the equipment, the current waveform and the switching-on and switching-off time of the switching-on and switching-off motor with the characteristics of the isolating switch operating mechanism are monitored through the acceleration sensor 8 and the current sensor 9, the temperature sensor 11 monitors the running temperature information of the isolating switch contact, the current sensor 9 monitors the running voltage of the bus in the cabinet body, and the visual monitoring device 7 monitors the switching-on and switching-off states of the first grounding switch 4 and the second grounding switch 5 in a video mode. The intelligent monitoring IED6 not only collects all parameters and state information of the visual monitoring device 7, the acceleration sensor 8, the current sensor 9, the voltage sensor 10 and the temperature sensor 11, analyzes the equipment state through analysis software of the intelligent monitoring IED, early warns equipment faults in advance, but also can perform on-site and remote switching-on and switching-off control on the first internet access isolating switch 1, the second internet access isolating switch 2, the cross-region direct current quick breaker 3, the first grounding switch 4 and the second grounding switch 5 in the intelligent switch cabinet, displays and checks collected parameters and state information through the man-machine interface equipment 12, and simultaneously, remotely transmits all collected data and analysis results to the central monitoring master station.
Example 2
The second wiring diagram of the intelligent combined switch cabinet for the subway is shown in fig. 2, and comprises a first Internet surfing isolating switch 1, a second Internet surfing isolating switch 2, a direct-current cross-region quick breaker 3, a cross-region isolating switch 14, a first grounding switch 4, a second grounding switch 5, an intelligent monitoring IED6, a visual monitoring device 7, an acceleration sensor 8, a current sensor 9, a voltage sensor 10, a temperature sensor 11 and a man-machine interface device 12 which are integrated in a combined switch cabinet body 13.
During normal operation, the traction substation inlet wire 1 is connected to the inlet end of the first internet-surfing isolating switch 1 through a cable, the outlet end of the first internet-surfing isolating switch 1 supplies power to the contact net (rail) through a cable, the traction substation inlet wire 2 is connected to the inlet end of the second internet-surfing isolating switch 2 through a cable, the outlet end of the second internet-surfing isolating switch 2 supplies power to the contact net (rail) through a cable, independent parallel power supply on two sides in a descending mode is achieved, and the cross-region isolating switch 14 and the upper cross-region direct current quick breaker 3 are in a break state.
When the traction equipment of the corresponding loop of the incoming line 1 or the incoming line 2 fails, an internet disconnecting switch corresponding to the power supply of the failed traction equipment is opened, the failed section is withdrawn, the upper cross-region disconnecting switch 14 is closed firstly, then the upper cross-region direct current quick breaker 3 is closed, the overhead line (rail) of the failed section is supported for power supply, and the normal operation of the whole line is ensured.
When the faults of the traction equipment of the loop corresponding to the inlet wire 1 or the inlet wire 2 are released, the on-line isolating switch corresponding to the fault traction equipment is closed, the direct-current fast breaker 3 and the isolating switch 14 are disconnected, and normal power supply is restored.
When the overhead line system (rail) overhauls, the first and second on-line isolating switches 1 and 2 and the cross-region direct current quick breaker 3 are disconnected, the first and second grounding switches 4 and 5 are closed, the visual monitoring device 7 is opened, and the opening and closing states of the first and second grounding switches 4 and 5 are monitored.
In the running process of the equipment, the current waveform and the switching-on and switching-off time of the switching-on and switching-off motor with the characteristics of the isolating switch operating mechanism are monitored through the acceleration sensor 8 and the current sensor 9, the temperature sensor 11 monitors the running temperature information of the isolating switch contact, the current sensor 9 monitors the running voltage of the bus in the cabinet body, and the visual monitoring device 7 monitors the switching-on and switching-off states of the first grounding switch 4 and the second grounding switch 5 in a video mode. The intelligent monitoring IED6 not only collects all parameters and state information of the visual monitoring device 7, the acceleration sensor 8, the current sensor 9, the voltage sensor 10 and the temperature sensor 11, analyzes the equipment state through analysis software of the intelligent monitoring IED, early warns equipment faults in advance, but also can perform on-site and remote switching-on and switching-off control on the first internet surfing isolating switch 1, the second internet surfing isolating switch 2, the handover isolating switch 14, the handover direct current quick breaker 3, the first grounding switch 4 and the second grounding switch 5 in the intelligent switch cabinet, displays and checks the collected parameters and state information through the man-machine interface equipment 12, and simultaneously, remotely transmits all collected data and analysis results to the central monitoring master station.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (8)
1. An intelligent combined switch cabinet for subways comprises a first internet surfing isolating switch (1), a second internet surfing isolating switch (2), a first grounding switch (4) and a second grounding switch (5);
the first traction substation incoming line is connected to the incoming end of the first internet access isolating switch (1) through a cable; the power supply system is characterized by further comprising a direct-current cross-over rapid breaker (3), wherein one end of the direct-current cross-over rapid breaker (3) is connected to the outlet end of the first internet-surfing isolating switch (1), the other end of the direct-current cross-over rapid breaker is connected to the outlet end of the second internet-surfing isolating switch (2), and the direct-current cross-over rapid breaker (3) is opened and closed for supplying power or not to the contact net or the contact rail.
2. The intelligent combined switch cabinet for the subway as claimed in claim 1, further comprising an acceleration sensor (8) and a current sensor (9), wherein the acceleration sensor (8) is arranged on a brake movement mechanism of the brake of the first internet access isolating switch (1) and the second internet access isolating switch (2) and is used for monitoring the brake opening and closing time of the brake movement mechanism of the brake of the first internet access isolating switch (1) and the second internet access isolating switch (2);
the current sensor (9) is arranged in the winding loop of the energy storage motor and is used for monitoring the current of the winding loop of the energy storage motor.
3. An intelligent combined switch cabinet for subways according to claim 1, characterized in that it further comprises a combined switch cabinet body (13); the intelligent switch cabinet comprises a first internet surfing isolating switch (1), a second internet surfing isolating switch (2), a cross-region direct-current quick breaker (3), a first grounding switch (4), a second grounding switch (5), an intelligent monitoring IED (intelligent electronic device) (6), a visual monitoring device (7), an acceleration sensor (8), a current sensor (9), a voltage sensor (10) and a temperature sensor (11), wherein the acceleration sensor (9), the voltage sensor (10) and the temperature sensor (11) are integrated in a combined switch cabinet body (13).
4. An intelligent combined switch cabinet for subways as claimed in claim 3, characterized in that the voltage sensor (10) is installed in the secondary chamber of the cabinet body (13), the positive electrode is connected to the positive busbar of the cabinet, the negative electrode is connected to the negative busbar of the cabinet, and the voltage sensor is used for detecting the operation voltage of the busbar in the cabinet.
5. An intelligent combined switch cabinet for subways as claimed in claim 3, characterized in that the temperature sensor (11) is arranged outside the first internet access isolating switch (1), the second internet access isolating switch (2), the first grounding switch (4) and the second grounding switch (5) for measuring the temperature of the contact point.
6. An intelligent combined switch cabinet for subways as claimed in claim 3, characterized in that the visual monitoring device (7) is used for acquiring and displaying data of an acceleration sensor (8), a current sensor (9), a voltage sensor (10) and a temperature sensor (11).
7. An intelligent combined switch cabinet for subways according to claim 3, characterized in that the intelligent monitoring IEDs (6) are respectively connected with a visual monitoring device (7), an acceleration sensor (8), a current sensor (9), a voltage sensor (10) and a temperature sensor (11) for acquiring and displaying data.
8. An intelligent combined switch cabinet for subways according to any of claims 1-7, characterized in that it further comprises a cross-over disconnecting switch (12), the cross-over disconnecting switch (12) being connected to the cross-over direct current fast breaker (3) and to the outlet of the first on-line disconnecting switch (1) for supplying power to the contact network or the contact rail of the faulty section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321944075.6U CN220342105U (en) | 2023-07-21 | 2023-07-21 | Intelligent combined switch cabinet for subway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321944075.6U CN220342105U (en) | 2023-07-21 | 2023-07-21 | Intelligent combined switch cabinet for subway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220342105U true CN220342105U (en) | 2024-01-12 |
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ID=89460466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321944075.6U Active CN220342105U (en) | 2023-07-21 | 2023-07-21 | Intelligent combined switch cabinet for subway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220342105U (en) |
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2023
- 2023-07-21 CN CN202321944075.6U patent/CN220342105U/en active Active
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