CN204136803U - Based on the electrification railway contact net electric isolating switch of power supply switching type - Google Patents
Based on the electrification railway contact net electric isolating switch of power supply switching type Download PDFInfo
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- CN204136803U CN204136803U CN201420534794.5U CN201420534794U CN204136803U CN 204136803 U CN204136803 U CN 204136803U CN 201420534794 U CN201420534794 U CN 201420534794U CN 204136803 U CN204136803 U CN 204136803U
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Abstract
The utility model provides a kind of electrification railway contact net electric isolating switch based on power supply switching type, the supervisory circuit of the disconnector in indoor long-distance monitorng device includes control circuit, motor power circuit, position signal circuit, the motor power circuit of control monitor unit is connected with the DC machine in isolator operating mechanism case and auxiliary contact by cable respectively with position signal circuit, the relay tip of the control circuit of control monitor unit is serially connected in motor power circuit, and the relay tip of position signal circuit is serially connected in control circuit; When monitoring power supply is for exchanging, be connected to first, second rectification module in the power supply of motor power circuit and position signal circuit, for motor power circuit and position signal circuit export direct current (DC).Useful amendment is the running environment improving control circuit electronic devices and components, improve system rejection to disturbance ability, cause motor misoperation after avoiding outside induced voltage to scurry into, decrease the probability that switch position signal shows by mistake, improve ocs isolating switch reliability of operation.
Description
Technical field
The utility model belongs to the automation field of railway electrification engineering, is specially the electrification railway contact net electric isolating switch based on power supply switching type.
Background technology
Electrified railway traction power supply system is that the disconnector that contact system is powered adopts motor-operating mechanism usually, includes remote monitor and control in.Arrange a set of by electromagnetic relay in isolator operating mechanism case, the alternating current control circuit of the element compositions such as AC contactor, this circuit is connected with long-distance monitorng device by control cables; Arrange a set of alternating current 220V motor operation power circuit in operating mechanism case in addition, be in long-term state with voltage, the contactless switch contact through control circuit is connected with motor.When in institute, control monitor unit sends combined floodgate or separating brake instruction, send a level signal by control cables to isolator operating mechanism, the control circuit in actuating mechanism, make series connection contactless switch junction closure in a power, motor switches on power rotation, completes combined floodgate or the separating brake of disconnector.After combined floodgate or separating brake put in place, control circuit makes series connection contactless switch in a power open, and cuts off motor power.Mainly there is following problem in this method for supervising:
(1) power circuit in isolator operating mechanism case is in long-term electriferous state, long-distance cable control circuit is subject to induced voltage interference, trigger isolator operating mechanism case inner control circuit after disturbing pulse invades, misconnection three-way motor power circuit, causes disconnector misoperation.
(2) control circuit is arranged in isolator operating mechanism case and is originally in outdoor, work under bad environment, easy et out of order, causes and cannot normally work, and causes disconnector misoperation or refused action.
(3) disconnector closing position or open position signal circuit adopt interchange usually, are equally easily subject to induced voltage interference, cause the switch position of display to occur mistake.
(4) for solution control circuit, position signal display circuit are subject to the problem that outside induced voltage disturbs, take optical fiber monitoring mode at present, but photoelectric conversion device is easy et out of order under low-temperature condition, cause and control mistake or malfunctioning, therefore not from dealing with problems at all.
On contact system, disconnector is the visual plant that tractive power supply system changes system rescue under operation scheme or faulty condition, conventional monitor mode is subject to external environmental interference impact, disconnector misoperation or refused action on contact system is caused to happen occasionally, hidden danger is brought to tractive power supply system reliability service, is therefore badly in need of studying disconnector Novel monitoring mode on contact system.
Summary of the invention
External environment condition disturbing influence is subject in order to solve the conventional method for supervising of contact net electric isolating switch, produce the problem of misoperation or refused action and position signal display mistake, the purpose of this utility model is to provide a kind of electrification railway contact net electric isolating switch based on power supply switching type, fundamentally stop interference, thus increase substantially the reliability of monitoring.
For achieving the above object, the technical scheme that the utility model is taked is to provide a kind of electrification railway contact net electric isolating switch based on power supply switching type, this electric isolating switch is dispatched a distant place by traction power supply and is controlled, interconnective DC machine is provided with in isolator operating mechanism case, motor range switch and auxiliary contact, and be connected with indoor long-distance monitorng device, wherein: the supervisory circuit being provided with disconnector in described indoor long-distance monitorng device, the supervisory circuit of described disconnector includes control circuit, motor power circuit, position signal circuit, the motor power circuit of described control monitor unit is connected with the DC machine in isolator operating mechanism case and auxiliary contact by cable respectively with position signal circuit, the relay tip of the control circuit of described control monitor unit is serially connected in motor power circuit, the relay tip of position signal circuit is serially connected in control circuit, when monitoring power supply for exchange time, in described indoor long-distance monitorng device motor power circuit and position signal circuit power supply in be connected to the first rectification module, the second rectification module, for motor power circuit and position signal circuit export direct current (DC).
Effect of the present utility model is:
(1) install concentratedly in indoor monitoring apparatus by the supervisory circuit of contact net electric isolating switch, improve the running environment of supervisory circuit electronic devices and components, system rejection to disturbance ability is close to 100%.
(2), after the action of disconnector divide-shut brake completes, control circuit automatic cut-off motor power supply, fundamentally avoids after outside induced voltage is scurried into and causes motor misoperation.
(3) display of disconnector position signal adopts direct current circuit, improves the ability resisting external disturbance, and indicating probability reduces about 50% by mistake.
(4) isolator operating mechanism structure greatly simplifies, and saves manufacturing cost, and fault rate reduces about 70%.
Accompanying drawing explanation
Fig. 1 is of the present utility model based on power supply switching type contact net electric isolating switch method for supervising functional block diagram;
Fig. 2 is of the present utility model based on power supply switching type contact net electric isolating switch circuit diagram.
Detailed description of the invention
By reference to the accompanying drawings the electrification railway contact net electric isolating switch based on power supply switching type of the present utility model and method for supervising are illustrated.
The utility model is based on cancelling the control circuit being subject to ambient interference and rectification module that in isolator operating mechanism case, routine is arranged based on the mentality of designing of power supply switching type electrification railway contact net electric isolating switch method for supervising, change concentrated setting room in interior long-distance monitorng device, operating power is dropped into, the long-distance monitoring method of rupturing operation power supply after action completes when ocs isolating switch needs action.The program cancels the control circuit that isolator operating mechanism is subject to ambient interference, only retains motor, motor range switch and auxiliary contact in operating mechanism case.After combined floodgate or separating brake instruction send, connect disconnector motor power circuit, automatic cut-off motor power circuit and control circuit after combined floodgate or separating brake complete, splitting or integrating gate position signal adopts the direct current circuit that anti-electromagnetic interference capability is strong.
As shown in Figure 1, the electrification railway contact net electric isolating switch of this kind of power supply switching type, this electric isolating switch is dispatched a distant place by traction power supply and is controlled, in isolator operating mechanism case, be provided with interconnective DC machine, motor range switch and auxiliary contact, and be connected with indoor long-distance monitorng device.Be provided with the supervisory circuit of disconnector in indoor long-distance monitorng device, include control circuit, motor power circuit, position signal circuit.Motor power circuit is connected with the DC machine in isolator operating mechanism case and auxiliary contact by cable respectively with position signal circuit, control circuit relay tip is serially connected in motor power circuit, and position signal circuit relay contact is serially connected in control circuit; Monitoring power supply for exchange time, in described indoor long-distance monitorng device the power supply of motor power circuit and position signal circuit respectively in be connected with the first rectification module AD1, the second rectification module AD2, for motor power circuit and position signal circuit export direct current (DC).Position signal circuit conducting all the time in indoor long-distance monitorng device according to disconnector current location by being serially connected in combined floodgate corresponding to relay tip setup control circuit in control circuit or sub-gate circuit possesses turn-on condition; After traction power supply dispatches the combined floodgate or separating brake instruction correctly sending disconnector, the corresponding relay of indoor long-distance monitorng device inner control circuit is charged, the corresponding relay tip be serially connected in motor power circuit closes, conducting closing circuit or sub-gate circuit, disconnector starts to close a floodgate or separating brake action, automatically can keep after control circuit conducting, ensure the lasting power transmission in motor action process; After disconnector divide-shut brake puts in place, position signal circuit is by correspondence position relay tip trigger control circuit, and control circuit cuts off DC motor power automatically; After motor power circuit cuts off, control circuit auto-breaking, control circuit, for guaranteeing power-off, is disconnected after being triggered on the one hand, on the other hand by disconnecting after the time meter time delay in control circuit automatically by position signal circuit relay.
As shown in Figure 2, of the present utility model is single phase A.C. 220V based on power supply switching type contact net electric isolating switch supervisory circuit power supply, major electrical components is made up of closing contactor HJ, separating brake contactless switch FJ, closing operation position relay HWJ, open position relay FWJ, closing time relay HSJ, opening time relay FSJ, reclosing command contact HY, separating brake instruction contact FY, rectification module AD1, AD2 and motor range switch auxiliary contact X-1 ~ X-6.Motor power circuit and signal circuit rectifies are become direct current circuit by the first rectification module AD1, the second rectification module AD2.
When disconnector is current be in closing position time, it is closed that corresponding motor range switch often opens auxiliary contact X-1, X-3, X-5, and normally closed auxiliary contact X-2, X-4, X-6 open; When disconnector is current be in open position time, corresponding motor range switch is often opened auxiliary contact X-1, X-3, X-5 and is opened, normally closed auxiliary contact X-2, X-4, X-6 are closed, therefore when disconnector is in combined floodgate or open position, corresponding closing operation position relay HWJ or open position relay FWJ have one charged, send correspondence position signal.Closing operation position relay normal opened contact HWJ-1 simultaneously in control circuit or open position relay normally open contact FWJ-1 respective closed.
When disconnector is in open position, when the operating personal of traction power supply scheduling sends reclosing command, combined floodgate order contact HY connects, through closing time relay normally closed contact HSJ-1, closed open position relay normally open contact FWJ-1, closing contactor HJ is charged, closing contactor normal opened contact HJ-1 closes, and keeps this circuit, and closing time relay HSJ is charged simultaneously.Closing contactor normal opened contact HJ-2, HJ-3 are closed, rotate forward after motor is powered, disconnector closes a floodgate, and after action puts in place, motor range switch normally closed auxiliary contact X-2, X-4, X-6 open, open position relay FWJ dead electricity, normal opened contact FWJ-1 opens, closing contactor HJ dead electricity, and normal opened contact HJ-1, HJ-2, HJ-3 open, motor M power circuit disconnects, and control circuit disconnects simultaneously.If motor refused action or travel switch auxiliary contact fault, then through closing time relay HSJ deferred action, setting time is greater than motor action arrival time, and normally closed contact HSJ-1 opens, cutting-off controlling circuit.
When disconnector is in closing position, when operator sends separating brake instruction, motor contrarotation, disconnector separating brake, control principle is the same.
Control circuit could be connected, simultaneously automatic cutting-off controlling circuit after action completes when the effect of open position relay FWJ and closing operation position relay HWJ is and ensures that disconnector is in tram.Time relay HSJ, FSJ in support mode guarantee that control circuit can automatically disconnect under any operating mode.
Except position signal circuit, in control monitor unit, all components and parts are only charged in divide-shut brake process, auto-breaking after divide-shut brake.
Claims (1)
1. the electrification railway contact net electric isolating switch based on power supply switching type, this electric isolating switch is dispatched a distant place by traction power supply and is controlled, interconnective DC machine is provided with in isolator operating mechanism case, motor range switch and auxiliary contact, and be connected with indoor long-distance monitorng device, it is characterized in that: the supervisory circuit being provided with disconnector in described indoor long-distance monitorng device, the supervisory circuit of described disconnector includes control circuit, motor power circuit, position signal circuit, the motor power circuit of described control monitor unit is connected with the DC machine in isolator operating mechanism case and auxiliary contact by cable respectively with position signal circuit, the relay tip of the control circuit of described control monitor unit is serially connected in motor power circuit, the relay tip of position signal circuit is serially connected in control circuit, when monitoring power supply for exchange time, in described indoor long-distance monitorng device motor power circuit and position signal circuit power supply in be connected to the first rectification module, the second rectification module, for motor power circuit and position signal circuit export direct current (DC).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420534794.5U CN204136803U (en) | 2014-09-17 | 2014-09-17 | Based on the electrification railway contact net electric isolating switch of power supply switching type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420534794.5U CN204136803U (en) | 2014-09-17 | 2014-09-17 | Based on the electrification railway contact net electric isolating switch of power supply switching type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204136803U true CN204136803U (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420534794.5U Withdrawn - After Issue CN204136803U (en) | 2014-09-17 | 2014-09-17 | Based on the electrification railway contact net electric isolating switch of power supply switching type |
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| CN (1) | CN204136803U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104192026A (en) * | 2014-09-17 | 2014-12-10 | 铁道第三勘察设计院集团有限公司 | Power switching based electric disconnector for electrified railway overhead line system and monitoring method thereof |
| CN107809141A (en) * | 2017-11-03 | 2018-03-16 | 成都锦城和创电气设备有限公司 | The line of high-voltage electric isolating switch two directly drives monitoring system |
| CN108682579A (en) * | 2018-05-23 | 2018-10-19 | 云南电网有限责任公司保山供电局 | A kind of disconnecting switch motor power distant place control method |
-
2014
- 2014-09-17 CN CN201420534794.5U patent/CN204136803U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104192026A (en) * | 2014-09-17 | 2014-12-10 | 铁道第三勘察设计院集团有限公司 | Power switching based electric disconnector for electrified railway overhead line system and monitoring method thereof |
| CN104192026B (en) * | 2014-09-17 | 2016-04-20 | 铁道第三勘察设计院集团有限公司 | Based on electrification railway contact net electric isolating switch and the method for supervising of power supply switching type |
| CN107809141A (en) * | 2017-11-03 | 2018-03-16 | 成都锦城和创电气设备有限公司 | The line of high-voltage electric isolating switch two directly drives monitoring system |
| CN107809141B (en) * | 2017-11-03 | 2019-07-16 | 成都锦城和创电气设备有限公司 | Two line of high-voltage electric isolating switch directly drives monitoring system |
| CN108682579A (en) * | 2018-05-23 | 2018-10-19 | 云南电网有限责任公司保山供电局 | A kind of disconnecting switch motor power distant place control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150204 Effective date of abandoning: 20160420 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |