CN203567759U - Time limit protecting device of three-phase alternating current switch machine - Google Patents
Time limit protecting device of three-phase alternating current switch machine Download PDFInfo
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- CN203567759U CN203567759U CN201320757080.6U CN201320757080U CN203567759U CN 203567759 U CN203567759 U CN 203567759U CN 201320757080 U CN201320757080 U CN 201320757080U CN 203567759 U CN203567759 U CN 203567759U
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Abstract
The utility model discloses a time limit protecting device of a three-phase alternating current switch machine. The time limit protecting device comprises a time limit protector and an alarm host machine, wherein the time limit protector comprises a three-phase current transformer, a rectifying circuit, a voltage stabilizing circuit and a timing circuit in sequential connection, a winding B1, a winding B2 and a winding B3 of the primary side of the three-phase current transformer are respectively connected with a phase wire A, a phase wire B and a phase wire C of a three-phase power supply, the output end of the timing circuit is connected with a relay driving circuit and an RS-485 alarm communication circuit, a coil of a relay in the three-phase alternating current switch machine is connected with the relay driving circuit, the alarm host machine comprises an RS-485 communication module, a PLC (programmable logic controller) module and a touch type liquid crystal display, the RS-485 communication module is connected with the RS-485 alarm communication circuit, the PLC module is connected with the RS-485 communication module, and the touch type liquid crystal display is connected with the PLC module. The time limit protecting device has the advantages that the structure is simple, the use and the operation are convenient and fast, the remote monitoring of the three-phase alternating current switch machine is realized, a three-phase alternating current motor is protected from being burnt out, and the practicability is high.
Description
Technical field
The utility model relates to switch control system technical field, especially relates to a kind of three phase current point switch fender guard of prescribing a time limit.
Background technology
AT STATION under steer mode, when the track switch that Platform attendant route setting is changed generation is squeezed trouble fault, by control desk alarm for a trailed switch, can find in time and cancel a route, cut off switch machine power supply, thereby prevent switch machine long time continuous working under frictional working current state or stall state, burn out motor.And the track switch generation of changing at the CTC equipment control dispatcher of Xia Huo control center route setting is squeezed while branching off fault, because the station quantity of dispatcher's management is more, and some route arranging order is that computing machine completes automatically according to operation plan, dispatcher can not find phenomenon of the failure in time, take measures in time, the long time continuous working under frictional working current state or under stall state that very easily causes switch machine, burns out motor, to railway transportation, brings great potential safety hazard.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art; a kind of three phase current point switch fender guard of prescribing a time limit is provided; it is simple in structure, reasonable in design, uses simple operation; realized the remote monitor and control to three phase current point switch; protected three phase alternating current motor not to be burned, commonality is good, practical; result of use is good, is convenient to promote the use of.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of three phase current point switch fender guard of prescribing a time limit, it is characterized in that: comprise protector and alarm host machine in limited time, described protector in limited time comprises the three phase current transformer detecting in real time for the electric current of three phase mains is carried out, the rectifying circuit joining with the secondary side winding of three phase current transformer, the mu balanced circuit joining with rectifying circuit and the timing circuit joining with described mu balanced circuit, the winding B1 of the primary side of described three phase current transformer, the A phase line of winding B2 and winding B3 difference correspondence and described three phase mains, B phase line and C phase line are joined, the mouth of described timing circuit is connected to relay drive circuit and RS-485 Alarm Communication circuit, the coil of the relay in described three phase current point switch and described relay drive circuit join, the PLC module that described alarm host machine comprises the RS-485 communication module of joining with described RS-485 Alarm Communication circuit, join with described RS-485 communication module and with the touch LCD screen of described PLC module.
The above-mentioned three phase current point switch fender guard of prescribing a time limit, is characterized in that: described PLC module is Siemens S7-300 series of PLC module.
The above-mentioned three phase current point switch fender guard of prescribing a time limit, is characterized in that: described touch LCD screen is 5.7 inches of touch single colour liquid crystal displays.
The utility model compared with prior art has the following advantages:
1, the utility model has adopted modular design, and circuit structure is simple, reasonable in design, and realization is convenient and cost is low.
2, easy-to-connect of the present utility model, is used simple operation.
3, the utility model can be cut off the electricity supply in time when track switch is broken down; and can upload fault track switch information to alarm host machine; realized the remote monitor and control to three phase current point switch; protected three phase alternating current motor not to be burned, solved and under current CTC steer mode, exchanged the problem that switch machine does not have protection.
4, the utility model all has stronger commonality in newly-built station and the technological transformation of old station, practical, and result of use is good, is convenient to promote the use of.
In sum, the utility model is simple in structure, reasonable in design, uses simple operation, has realized the remote monitor and control to three phase current point switch, has protected three phase alternating current motor not to be burned, and commonality is good, practical, and result of use is good, is convenient to promote the use of.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present utility model.
Description of reference numerals:
1-three phase current transformer; 2-mu balanced circuit; 3-timing circuit;
4-relay drive circuit; 5-RS-485 Alarm Communication circuit; 6-RS-485 communication module;
7-PLC module; 8-touch LCD screen; 9-three phase mains;
10-rectifying circuit; 11-relay.
The specific embodiment
As shown in Figure 1, the utility model comprises protector and alarm host machine in limited time, described protector in limited time comprises the three phase current transformer 1 detecting in real time for the electric current of three phase mains 9 is carried out, the rectifying circuit 10 joining with the secondary side winding of three phase current transformer 1, the mu balanced circuit 2 joining with rectifying circuit 10 and the timing circuit 3 joining with described mu balanced circuit 2, the winding B1 of the primary side of described three phase current transformer 1, the A phase line of winding B2 and winding B3 difference correspondence and described three phase mains 9, B phase line and C phase line are joined, the mouth of described timing circuit 3 is connected to relay drive circuit 4 and RS-485 Alarm Communication circuit 5, coil and the described relay drive circuit 4 of the relay 11 in described three phase current point switch join, the PLC module 7 that described alarm host machine comprises the RS-485 communication module 6 of joining with described RS-485 Alarm Communication circuit 5, join with described RS-485 communication module 6 and with the touch LCD screen 8 of described PLC module 7.
As shown in Figure 1, in the present embodiment, described PLC module 7 is Siemens S7-300 series of PLC module.Described touch LCD screen 8 is 5.7 inches of touch single colour liquid crystal displays.
Principle of work of the present utility model and working process are: the electric current of 1 pair of three phase mains 9 of three phase current transformer detects in real time and detected signal is exported to rectifying circuit 10, rectifying circuit 10 by the signal of three phase current transformer 1 output adjust for the amplitude pulsafeeder that is 24V after export to mu balanced circuit 2, the signal of 2 pairs of rectifying circuits of mu balanced circuit 10 output carries out after voltage stabilizing as timing circuit 3 provides required working power, when track switch enters after transformation condition, timing circuit 3 obtains electric startup and starts timework, after reaching design time, track switch quits work, the output of timing circuit 3 is connected with RS-485 Alarm Communication circuit 5 with relay drive circuit 4, on/off signal is provided, whether self-closing relay drive circuit 4 is for controlling the coil of relay 11 of described three phase current point switch, thereby realized the control of cut-offfing to three phase current point switch, RS-485 Alarm Communication circuit 5 can be connected with PLC module 7 by RS-485 communication module 6, track switch conversion is surpassed to the alerting signal of the time of design and be uploaded to PLC module 7 and be presented on touch LCD screen 8.
In sum, the utility model can be cut off the electricity supply in time when track switch is broken down, and can upload fault track switch information to alarm host machine, has protected three phase alternating current motor not to be burned.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every any simple modification of above embodiment being done according to the utility model technical spirit, change and equivalent structure change, and all still belong in the protection domain of technical solutions of the utility model.
Claims (3)
1. the three phase current point switch fender guard of prescribing a time limit, it is characterized in that: comprise protector and alarm host machine in limited time, described protector in limited time comprises the three phase current transformer (1) detecting in real time for the electric current of three phase mains (9) is carried out, the rectifying circuit (10) joining with the secondary side winding of three phase current transformer (1), the mu balanced circuit (2) joining with rectifying circuit (10) and the timing circuit (3) joining with described mu balanced circuit (2), the winding B1 of the primary side of described three phase current transformer (1), the A phase line of winding B2 and winding B3 difference correspondence and described three phase mains (9), B phase line and C phase line are joined, the mouth of described timing circuit (3) is connected to relay drive circuit (4) and RS-485 Alarm Communication circuit (5), the coil of the relay in described three phase current point switch (11) and described relay drive circuit (4) join, the PLC module (7) that described alarm host machine comprises the RS-485 communication module (6) of joining with described RS-485 Alarm Communication circuit (5), join with described RS-485 communication module (6) and with the touch LCD screen (8) of described PLC module (7).
2. according to the three phase current point switch claimed in claim 1 fender guard of prescribing a time limit, it is characterized in that: described PLC module (7) is Siemens S7-300 series of PLC module.
3. according to the three phase current point switch claimed in claim 1 fender guard of prescribing a time limit, it is characterized in that: described touch LCD screen (8) is 5.7 inches of touch single colour liquid crystal displays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320757080.6U CN203567759U (en) | 2013-11-22 | 2013-11-22 | Time limit protecting device of three-phase alternating current switch machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320757080.6U CN203567759U (en) | 2013-11-22 | 2013-11-22 | Time limit protecting device of three-phase alternating current switch machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203567759U true CN203567759U (en) | 2014-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320757080.6U Expired - Fee Related CN203567759U (en) | 2013-11-22 | 2013-11-22 | Time limit protecting device of three-phase alternating current switch machine |
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| Country | Link |
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| CN (1) | CN203567759U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2602154C1 (en) * | 2015-07-14 | 2016-11-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Петербургский государственный университет путей сообщения Императора Александра I" | Three-wire device for controlling electric switch mechanism |
-
2013
- 2013-11-22 CN CN201320757080.6U patent/CN203567759U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2602154C1 (en) * | 2015-07-14 | 2016-11-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Петербургский государственный университет путей сообщения Императора Александра I" | Three-wire device for controlling electric switch mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20141122 |
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| EXPY | Termination of patent right or utility model |