CN2659772Y - A.C. interference preventor of d.c. electric point machine - Google Patents
A.C. interference preventor of d.c. electric point machine Download PDFInfo
- Publication number
- CN2659772Y CN2659772Y CN 03267664 CN03267664U CN2659772Y CN 2659772 Y CN2659772 Y CN 2659772Y CN 03267664 CN03267664 CN 03267664 CN 03267664 U CN03267664 U CN 03267664U CN 2659772 Y CN2659772 Y CN 2659772Y
- Authority
- CN
- China
- Prior art keywords
- cable
- countermeasure set
- inductance coil
- direct current
- current drive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Control Of Ac Motors In General (AREA)
Abstract
The utility model discloses a DC electric point switch anti-AC interference device, which aims at providing a device that can prevent the DC electric point switch widely used in railway from causing miss action since the entering of the AC electricity. The utility model contains at least one inductor, when using, a winding loop of the DC electric point switch is connected with the inductors in series respectively, so as to hinder the passing by of AC to play a role of preventing the DC electric point switch from the miss action.
Description
Technical field
The utility model is a kind of railway signals equipment that is used for, and prevents that the direct current drive switch machine from disturbing the device that causes malfunction because of exchanging.
Background technology
Electric cluster on the present railway, most direct current drive switch machine that uses is changed track switch, after track switch is changed, does not have manual command's track switch not allow to move, otherwise may cause serious accident.
Fig. 1 is a direct current drive switch machine control loop scheme drawing, and power supply was got back to direct supply 8 from direct supply 8 through switch 7, cable 4, field winding 2, armature loop 1, cable 5 when switch 7 closed, and the electrical motor of direct current drive switch machine is rotated.When switch 7 separated, electrical motor should not rotate.If may cause electrical motor to rotate but alternating current is scurried into by cable, will jeopardize traffic safety, this situation is existing to be taken place.Also do not prevent at present the direct current drive switch machine because interchange is disturbed and the method and apparatus of malfunction.
Summary of the invention
The purpose of this utility model provides the anti-countermeasure set that exchanges of a kind of direct current drive switch machine, and it can prevent that the direct current drive switch machine that uses at present from disturbing the misoperation that produces because of exchanging.
The anti-countermeasure set that exchanges of the utility model direct current drive switch machine contains inductance coil.
Described inductance coil preferably contains the coil of iron core.
Can be on same iron core in order to reduce a plurality of inductance coils of volume.
The utility model in use with being connected of direct current drive switch machine, be that the anti-inductance coil that exchanges countermeasure set is sealed in the motor winding loop of direct current drive switch machine, as shown in Figure 2.The in use anti-countermeasure set 9 that exchanges should be tried one's best near the direct current drive switch machine, because inductance coil is very little to galvanic impedance, impedance to alternating current is very big, therefore the anti-adding that exchanges countermeasure set of the utility model, do not influence the performance of original machinery and electric system, and the alternating current of being scurried into by cable is had very big inhibition, played the purpose that anti-interchange is disturbed.
Description of drawings
Fig. 1 is existing direct current drive switch machine control circuit scheme drawing;
Fig. 2 is anti-interchange countermeasure set and the direct current drive switch machine connection diagram that contains single inductance coil;
Fig. 3 is the electrical schematic diagram that contains the anti-interchange countermeasure set of single inductance coil;
Fig. 4 is for containing the anti-interchange countermeasure set electrical schematic diagram that the iron core inductance coil is formed with two;
The anti-interchange countermeasure set electrical schematic diagram that Fig. 5 is three inductance coils on the same iron core;
Fig. 6 is anti-interchange countermeasure set 12 and the direct current drive switch machine connection diagram that contains two inductance coils;
Fig. 7 contains the anti-interchange countermeasure set 13 of three inductance coils and has the connection diagram of the direct current drive switch machine of positive and negative two field winding electrical motors.
Fig. 8 is the control circuit scheme drawing that has the direct current drive switch machine of positive and negative two field winding electrical motors at present.
Among the figure: armature winding 1 motor field winding 2 motor field windings 3 cables 4 cables 5 cables 6 switches 7 direct supplys 8 anti-countermeasure set 9 inductance coils 10 iron cores 11 anti-countermeasure set 12 anti-countermeasure set 13 switches 14 that exchange that exchange that exchange
The specific embodiment
The utility model will be further described below in conjunction with accompanying drawing:
Fig. 3 is the anti-interchange countermeasure set schematic diagram that is made of an air-core inductance 10.
Because it mainly is industrial-frequency alternating current that the in use required interchange that prevents is disturbed, therefore use the inductance coil of ribbon core can reduce the anti-volume that exchanges countermeasure set.Fig. 4 is the anti-interchange countermeasure set with two ribbon core inductance, and inductance coil 10 is on iron core 11, and iron core should be selected the silicon sheet core around voltage transformer for use.
Can be with a plurality of inductance coils on same iron core, as on a ring structure iron core.The anti-interchange countermeasure set schematic diagram that Fig. 5 is three inductance coils 10 on the same iron core 11 can further reduce volume like this, but note end of the same name in use.
The anti-interchange countermeasure set that contains different number inductance coils is applicable to different occasions.As shown in Figure 2, used anti-interchange countermeasure set with single inductance coil, one end of direct supply 8 is through switch 7 connecting cables 4, receive motor field winding 2 again, the other end of direct supply connects anti-one of them terminal that exchanges inductance coil in the countermeasure set 9 through cable 5, another terminal of inductance coil connects armature winding 1, circuit can be resisted from cable 4 like this, the interference of 5 introducings, but for armature loop 1 connected to chassis situation, disturbing current may be from cable 4 through field winding 2, and armature loop 1 and go into ground does not play effect for the anti-countermeasure set 9 that exchanges of this situation.
The anti-interchange countermeasure set that use has two inductance coils connects as shown in Figure 6 to solve preferably and uses that single inductance coil is anti-to exchange the problems referred to above that countermeasure set produced.Concrete connection is: an end of direct supply 8 links to each other with cable 5, and the other end of direct supply 8 is through switch 7 connecting cables 4, and an anti-inductance coil that exchanges in the countermeasure set 12 is serially connected between cable 5 and the armature winding 1; Anti-another inductance coil that exchanges in the countermeasure set 12 is serially connected between cable 4 and the motor field winding 2.
Fig. 8 uses maximum a kind of direct current drive switch machine control circuits at present, the electrical motor of Fig. 8 is the electrical motor with positive and negative two field windings, its field winding 2 and field winding 3 around to opposite, motor just changes when switch 14 is connected to cable 4, motor counter-rotating when switch 14 is connected to cable 6.Should use the anti-interchange countermeasure set that contains three inductance coils for direct current drive switch machine with positive and negative two field winding electrical motors, during connection as shown in Figure 7: an end of direct supply 8 links to each other with an end of cable 5, the other end of direct supply 8 links to each other with the middle contact of switch 14, two end points of other of switch 14 link to each other with cable 6 with cable 4 respectively, and anti-one of them inductance coil that exchanges in the countermeasure set 13 is serially connected between cable 5 and the armature winding 1; Another inductance coil is serially connected between cable 6 and the motor field winding 3; A remaining inductance coil is serially connected between cable 4 and the motor field winding 2.
Claims (3)
1, the anti-countermeasure set that exchanges of a kind of direct current drive switch machine is characterized in that; Contain three inductance coils, one of them inductance coil is serially connected between cable (5) and the armature winding (1); Another inductance coil is serially connected between cable (6) and the motor field winding (3); A remaining inductance coil is serially connected between cable (4) and the motor field winding (2), one end of direct supply (8) links to each other with an end of cable (5), the other end of direct supply (8) links to each other with the middle contact of switch (14), and two end points of other of switch (14) link to each other with cable (6) with cable (4) respectively.
2, the anti-countermeasure set that exchanges of direct current drive switch machine as claimed in claim 1 is characterized in that described inductance coil is the inductance coil that contains iron core.
3, the anti-countermeasure set that exchanges of direct current drive switch machine as claimed in claim 2 is characterized in that a plurality of inductance coils are on same iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03267664 CN2659772Y (en) | 2003-07-17 | 2003-07-17 | A.C. interference preventor of d.c. electric point machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03267664 CN2659772Y (en) | 2003-07-17 | 2003-07-17 | A.C. interference preventor of d.c. electric point machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2659772Y true CN2659772Y (en) | 2004-12-01 |
Family
ID=34330023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03267664 Expired - Lifetime CN2659772Y (en) | 2003-07-17 | 2003-07-17 | A.C. interference preventor of d.c. electric point machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2659772Y (en) |
-
2003
- 2003-07-17 CN CN 03267664 patent/CN2659772Y/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101447699A (en) | Electromagnetic induction coupling power device of high-voltage transmission line online deicing robot | |
| CN110071678B (en) | Stator section winding step changing method for long stator linear synchronous motor of medium-speed magnetic suspension train | |
| WO2014201809A1 (en) | Uninterrupted direct current deicing device | |
| CN108808651A (en) | A kind of high-voltage direct current fault current limiter and method based on saturable core | |
| CN1296224C (en) | Magnetic suspention train long stator segment step changing method | |
| CN111564830B (en) | Current limiting method of transformer current limiting device based on artificial zero-crossing current limiting | |
| CN2659772Y (en) | A.C. interference preventor of d.c. electric point machine | |
| CN201360179Y (en) | Induction electricity collecting device for robot on high-voltage transmission line | |
| CN100570766C (en) | External electric supply controllable reactor | |
| CN110789360B (en) | Multi-system traction transmission system and method based on modular multilevel converter | |
| CN2645196Y (en) | Iron core current-limiting reactor | |
| CN1545198A (en) | Second generation high-voltage large-power frequency converter | |
| CN2871482Y (en) | Fast-connected electric system of crane | |
| CN210985973U (en) | Drilling oil power-change control system directly driven by medium-voltage frequency conversion | |
| CN2244247Y (en) | Resonance eliminating and anti-earthing voltage mutural inductor | |
| CN200953539Y (en) | Transformer solid loaded tap changer controller | |
| CN109655677B (en) | Multifunctional test device, test method and manufacturing method of current-limiting reactor | |
| CN2657256Y (en) | Short-circuit fault current limiter | |
| CN206977056U (en) | The reactive power compensator that can switch between two sections of buses | |
| CN211858356U (en) | Vx of single-body structure connects 220kV traction transformer | |
| CN219041402U (en) | Three-phase motor compensation device | |
| CN109217277A (en) | It is a kind of for promoting the phase conversion overvoltage suppressor of converter valve reliability | |
| CN221380523U (en) | Reactive compensation control device and current sampling circuit thereof | |
| CN213935896U (en) | Double-high-voltage conversion transformer | |
| CN215342259U (en) | Grounding transformer with secondary winding |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130717 Granted publication date: 20041201 |