CN2237902Y - Full-contactless ac switch cabinet of stator and rotor with electronic interlocking apparatus - Google Patents
Full-contactless ac switch cabinet of stator and rotor with electronic interlocking apparatus Download PDFInfo
- Publication number
- CN2237902Y CN2237902Y CN 95207128 CN95207128U CN2237902Y CN 2237902 Y CN2237902 Y CN 2237902Y CN 95207128 CN95207128 CN 95207128 CN 95207128 U CN95207128 U CN 95207128U CN 2237902 Y CN2237902 Y CN 2237902Y
- Authority
- CN
- China
- Prior art keywords
- rotor
- terminal
- current switch
- thyristor
- switch cabinet
- 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 - Fee Related
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Abstract
The utility model relates to the full-noncontact alternate current switch cabinet of a stator and a rotor with an electronic interlocking device, composed of a metallic cabinet, a thyristor, the electronic interlocking device, and a rotor controller. The utility model is characterized in that the utility model is separately provided with the noncontact alternate current switch of the stator and the rotor to respectively control the starting, the braking and the reversing operation of the stator and the rotor of the same line rolling-typed alternate current motor. The electrical apparatus element of the stator and the rotor has good barrier property and less influence by using the control mode, and the operation is reliable. When used for some important dragging objects, the operational mode can increase reliability, and simultaneously the noncontact alternate current switch of the stator is provided with the electronic interlocking device; accordingly, a thyristor element and the off state can be monitored time of day, and the reliable phase conversion can be ensured; the performance is superior to the performance of a domestic general-purpose delaying plate of 60 ms.
Description
The utility model belongs to steel and iron industry and relates to the winding type controller for ac motor.
The contactless alternating-current switch cabinet of CJW that present domestic application is wider and JDK type, the following problem of ubiquity: 1, can only make the stator noncontacting switch, rotor-side does not have any control, only installs 40-100% specified rotor resistance additional.Its disadvantage is (to 40%) easy burning electric motor when rotor resistance is too small; (to 100%) reduced the capacity of motor again when rotor resistance was excessive, therefore had to increase motor capacity to satisfy technologic requirement.The certainly corresponding also corresponding increase of electric supply installation causes unnecessary wave not.Install the dynamic braking link additional in order to address this problem some contactless alternating-current switch cabinet, but bring new problem again, both stator top-cross current control and DC control were mixed in together, and the rate of failure that influences each other is very high.2, only depend on 60 millisecond time-delay plates to finish during the forward and reverse rotation of motor,, must cause phase fault to damage element in case certain thyristor that is commutating does not end fully.
The purpose of this utility model provides a kind of contactless alternating-current switch cabinet of rotor of charged sub-interlocker, to stator and separately control of rotor-side.Electronics does not disturb very reliable mutually.Provide a kind of special electronic interlocking device simultaneously, protection stator side and thyristor element.
The purpose of this utility model is realized by following technical scheme: it comprises that metal cabinet and switching circuit form the contactless alternating-current switch cabinet of stator, and it is held to levy and is to have adopted electronic interlocking device QSD.The X of QSD
1-X
2Post is connected on thyristor 2-5V downside, the S post is connected on K
1, K
2Set place of normally-open normally-close contact, the D post is connected on K
1, K
2Set place of normal opened contact, zero line, relay K
0, K
1, K
2Coil is connected on master controller LK respectively
1, 2,3, on the gear.
The purpose of this utility model can also be arranged by following technology and be revolved further realization: it comprises that metal cabinet and switching circuit form the contactless alternating-current switch cabinet of rotor, it is characterized in that: rotor resistance switches employing thyristor element and adopts industry to trigger the thyristor element, its way is, on the accelerating resistor RJ, the H of rotor controller KZ
1, H
2Post is connected on the current transformer TA, Y
1, Y
2Be connected on power supply Z
1-Z
3, 101-103 be connected on 6-8V.
The purpose of this utility model can also further be realized by following technical measures: it comprises that metal cabinet and rotor switching circuit form the contactless alternating-current switch cabinet of rotor, it is characterized in that, the rotor winding of same motor is controlled respectively.
Owing to adopt such scheme, can produce as above effect: 1, electronic interlocking device QSD can detect commutation thyristor 2-5V effectively by strong condition, in case certain element not fully by then other element be blocked can not conducting, can avoid phase fault effectively, burn element.2, son is owing to be provided with accelerating resistor RJ limit electric current with RF when reversal connection, and by 6-8V connection resistance R J, at this moment rotor loop resistance is RF and the value in parallel of RJ, plays acceleration during acceleration.This drive manner can effectively utilize the capacity of motor.
Further specify below in conjunction with drawings and Examples.
Fig. 1 is the novel electrical schematic diagram of this reality;
Fig. 2 is an electronic interlocking device QSD electrical schematic diagram;
Fig. 3 is a rotor controller KZ electrical schematic diagram;
Fig. 4 is a trigger element DC electrical schematic diagram.
Fig. 1, middle switch S A, fuse 1-3F, bidirectional thyristor 1-5V, relay K
0, K
1, K
2, master switch LK, electricity interlocker QSD, thyristor 6-8V, instrument transformer TA, rotor controller KZ, reversal connection to moving resistance R F, accelerating resistor RJ.
Fig. 1, middle three-phase alternating-current supply are connected fuse 1-3F upside through switch S A, and the 1-3F downside is connected on the thyristor 1-5V.2-3V is connected with the 4-5V paraphase.The X of electronic interlocking device QSD
1, X
2Terminal is connected on the 2-5V downside, and the S terminal is connected on relay K
1, K
2Often open, set place of normally closed contact, the D terminal is connected on K
1, K
2Set place of normal opened contact and zero-power line, relay coil K
0, K
1, K
2Be connected on master switch 1,2,3 positions respectively.Motor M rotor leading wire meets plug braking resistance R F.Accelerating resistor RJ is by thyristor 220V AC power, terminal H
1, H
2Be connected on the power transformer TA terminal Z
1-Z
3, 101-103 be connected on respectively the 6-8V first anode and control extremely go up.In Fig. 1 embodiment, being sent by LK just changes sense counter-rotating instruction.K when just changeing
1Get then motor forward running of electric thyristor 1-3V conducting; K during counter-rotating
2Electric 1,4,5V conducting motor turns round in the other direction.Illustrate motor below and forward the process of antiport: LK to from forward and got to when reverse by forward, No. 2 contacts of LK disconnect No. 3 contacts to be connected, but this moment K
2Can not connect, will see the operating state of QSD this moment at once.The X of QSD
1, X
2Be connected on the 2-5V downside, if 2,3V is fully by X
1, X
2Between block the very little then conducting K between S-D of voltage
2Also with regard to conducting, motor enters reversal connection changes state; If 2-3V does not end K fully
2Also just can not conducting, can prevent effectively that phase fault from burning element.The contactless alternating-current switch of rotor is work like this, in a single day enter the first moment of inverted status when motor, the very big then instrument transformer of motor current TA sends into has changeed very big current signal of controller KZ, KZ stops paying out pulse at once, 6-8V all ends simultaneously, conducting is with RJ and in the RF both sides again only to keep bigger reversal connection resistance R F restriction pulse 6-8V in the motor rotor, and rotor resistance reduces the electronic a certain stationary value that accelerates to.
Among Fig. 2, R
1-R
8Resistance, V
1, V
5Diode, C
1, C
2Capacitor, V
2Triode, V
3Concentrate at together V
1Negative electrode and C
1, R
4Connect R
4The other end and V
2Base stage connects, V
2Collector electrode and R
5, C
2-V
3Emitter connects, R
5, R
6, R
8Connect R
8The other end and V
5Negative electrode connects, V
5Anode and V
4Anode connects and leading-out terminal S, V
3Second base stage and R
6Connect V
3First base stage and R
7, V
4The control utmost point connects R
3, C
1, V
2Emitter, C
2, R
7, V
4Negative electrode connects leading-out terminal D, R
1, R
2The other end is leading-out terminal X respectively
1, X
2
QSD is work like this, by X
1, X
2Record thyristor 2-5V by residual voltage, through R
1, R
2With R
3Arrive V after the dividing potential drop in addition
2Substrate is as residual voltage during greater than a certain value (show that 2-5V element show fully by), then V
2Conducting short circuit C
2V then
3V can not vibrate
4Conducting could be given K
1Or K
2Cause path.
Among Fig. 3,1-2T transformer, V bidirectional thyristor, DC trigger.Rotor controller KZ terminal Y
1, Y
2Connect the 220VA power supply, be connected on the transformer 1T220VAC winding through V, three 7VAC windings of 1T are numbered T with preface
1-G
1, T
2-G
2, T
3-G
3, the G terminal of trigger element DC is connected on the control of V and extremely goes up, and the T terminal of DC is connected with the negative electrode of V, the Y of DC
01, Y
02Terminal is connected H with the 17VAC winding of 2T
1, H
2For to external terminal.
KZ is work like this, and the current transformer signal passes through H
1, H
2Receive on the trigger element DC, when current signal during greater than a certain setting, DC stops paying out pulse, V by the defeated 7VAC voltage of 1T then, then little during to certain value, V not only conducting but also output 7VAC voltage of current signal.
Among Fig. 4, resistance R
1-R
5, capacitor C
1-C
2, triode V
2, unijunction transistor V
3, diode V
5, voltage-stabiliser tube V
4, rectifier bridge VC, potentiometer RP
1-RP
2
In Fig. 4 DC trigger element, V
1Emitter and R
2, C
1, V
2Collector electrode connects, V
1The sub-G of first base terminal, V
2Base stage and V
3The first base stage R
4Connect V
3Emitter seals in RP
2Receive AP
1Slide head, VC AC side leading-out terminal H
1, H
2, the VC DC side is connected on RP
1Two ends, R
1-R
3, V
4, R
5Connect C
1, V
2Emitter, R
4, RP
1, VC negative pole, V
4Anode, C
2Connect, respectively leading-out terminal T, Y
02, V
4, R
5, C
2, V
5Be the rectifying and voltage-stabilizing link.
Fig. 4 DC trigger element is work like this.By terminal H
1, H
2Introduce current signal and after the VC rectification, be added in RP
1Two ends, this signal is through RP
1Sliding point is again through RP
2Be connected on V
3On the emitter, when extraneous signal greater than V
3During breakover voltage, R
4In an electric current is arranged by V then
2Conducting short circuit capacitor C
1V then
1The failure of oscillations, the output of G-T no pulse; If extraneous signal is less than V
3Recovery voltage the time, V then
3By, V
2Also by, V
1Starting oscillation output pulse again.Slip RP
1Just can adjust the size of output signal and also just adjust operating current, RP
2Effect be to adjust return value.
The contactless alternating-current switch of rotor makes the special-purpose contactless alternating-current switch cabinet of rotor in can being arranged on separately and doing in the metal cabinet, and accelerating resistor RJ, brilliant lock element and rotor controller KZ can be provided with a plurality of, the Multistage Control of formation.
Claims (5)
1, a kind of rotor of charged sub-interlocker is completely without contact alternating-current switch cabinet, be made up of metal cabinet and thyristor unit, electronic interlocking device, rotor controller, it is characterized in that: the X1 of electronic interlocking device QSD, X2 terminal are connected on thyristor 2-5V downside, the S terminal is connected on relay K
1, K
2Set place of normally-open normally-close contact, D terminal are connected on relay K
1, K
2Set place of normal opened contact and zero line, accelerating resistor RJ is attempted by on the reversal connection resistance R F by thyristor 6-8V, the H of rotor controller KZ
1, H
2Terminal is connected on electric current to sensor TA, Y
1, Y
2Terminal connects power supply, Z
1-Z
2, the 101-103 terminal is connected on respectively on the thyristor 6-8V.
2, the contactless alternating-current switch cabinet of the rotor of charged sub-interlocker according to claim 1 is characterized in that: among the electronic interlocking device QSD, and R
1, R
2With R
3Serial connection, R
1-R
3, V
1The resistance utmost point connects V
1Negative electrode and C
1, R
4Connect R
4The other end and V
2Base stage connects, V
2Collector electrode and R
5, C
2, V
3Emitter connects, R
5, R
6, R
8Connect R
8The other end and V
5Negative electrode connects, V
5Negative electrode, V
4Anode connects, and leading-out terminal S, V
3Second base stage and R
6Connect V
3First base stage and R
7, V
4The control utmost point connects R
3, C
1, V
2Emitter, C
2, R
7, V
4Negative electrode is connected together and leading-out terminal D, R
1, R
2Other end leading-out terminal X
1, X
2
3, the contactless alternating-current switch cabinet of the rotor of charged sub-interlocker according to claim 1 is characterized in that: rotor controller KZ, outside 220VAC power supply is by terminal Y
1, Y
2Introducing is connected on 220V on elementary lucky group of the 1T through thyristor V, and three 7V windings of 1T are numbered T with preface
1-G
1, T
2-G
2, T
3-G
3Leading-out terminal, the G terminal of trigger element DC is connected on the control of V and extremely goes up, and the T terminal of DC is connected with the negative electrode of V, the Y of DC
01, Y
02Be connected H with the 2T17V winding
1, H
2For to external terminal.
4, the rotor of charged sub-interlocker according to claim 1 is characterized in that completely without contact alternating-current switch cabinet: among the contact point unit DC, and V
1Emitter and R
2, C
1, V
2Collector electrode connects, V
1First base stage is guided to terminal G, V
2Base stage and V
3First base stage, R
4Connect V
3Emitter seals in RP
2Receive RP
1Slide head, VC AC side leading-out terminal H
1, H
2, the VC DC side is connected on RP
1Two ends, R
1, R
2, R
3V
4, R
5Connect C
1, V
2Emitter, R
4, RP
1, the VC negative pole, V
4Anode, C
2Connect, respectively leading-out terminal T, Y
02, V
4, R
5, C
2, V
5Be rectification and voltage stabilizing link.
5, the rotor of charged sub-interlocker according to claim 1 is characterized in that completely without contact alternating-current switch cabinet: the contactless alternating-current switch of rotor can be arranged on separately and make the special-purpose contactless alternating-current switch cabinet of rotor in the metal cabinet, and accelerating resistor RJ thyristor element and rotor controller KZ are provided with a plurality of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95207128 CN2237902Y (en) | 1995-04-03 | 1995-04-03 | Full-contactless ac switch cabinet of stator and rotor with electronic interlocking apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95207128 CN2237902Y (en) | 1995-04-03 | 1995-04-03 | Full-contactless ac switch cabinet of stator and rotor with electronic interlocking apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2237902Y true CN2237902Y (en) | 1996-10-16 |
Family
ID=33858865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95207128 Expired - Fee Related CN2237902Y (en) | 1995-04-03 | 1995-04-03 | Full-contactless ac switch cabinet of stator and rotor with electronic interlocking apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2237902Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100456625C (en) * | 2005-08-26 | 2009-01-28 | 大银微***股份有限公司 | Inductive load control device |
| CN103582999A (en) * | 2011-05-26 | 2014-02-12 | 株式会社Xyvec | Apparatus for controlling rotor current in a wound-rotor type induction motor |
| CN106169891A (en) * | 2016-08-12 | 2016-11-30 | 柳州鹏达科技有限责任公司 | Noncontacting switch controls motor circuit |
| CN106208815A (en) * | 2016-08-12 | 2016-12-07 | 柳州鹏达科技有限责任公司 | Noncontacting switch controls electric machine |
| CN106230346A (en) * | 2016-08-12 | 2016-12-14 | 柳州鹏达科技有限责任公司 | Noncontacting switch controls motor method |
| CN106502222A (en) * | 2016-10-13 | 2017-03-15 | 湖南工业大学 | A kind of guestroom control plant network communication means |
-
1995
- 1995-04-03 CN CN 95207128 patent/CN2237902Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100456625C (en) * | 2005-08-26 | 2009-01-28 | 大银微***股份有限公司 | Inductive load control device |
| CN103582999A (en) * | 2011-05-26 | 2014-02-12 | 株式会社Xyvec | Apparatus for controlling rotor current in a wound-rotor type induction motor |
| CN106169891A (en) * | 2016-08-12 | 2016-11-30 | 柳州鹏达科技有限责任公司 | Noncontacting switch controls motor circuit |
| CN106208815A (en) * | 2016-08-12 | 2016-12-07 | 柳州鹏达科技有限责任公司 | Noncontacting switch controls electric machine |
| CN106230346A (en) * | 2016-08-12 | 2016-12-14 | 柳州鹏达科技有限责任公司 | Noncontacting switch controls motor method |
| CN106169891B (en) * | 2016-08-12 | 2018-09-21 | 柳州鹏达科技有限责任公司 | Noncontacting switch controls motor circuit |
| CN106230346B (en) * | 2016-08-12 | 2018-09-21 | 柳州鹏达科技有限责任公司 | Noncontacting switch controls motor method |
| CN106502222A (en) * | 2016-10-13 | 2017-03-15 | 湖南工业大学 | A kind of guestroom control plant network communication means |
| CN106502222B (en) * | 2016-10-13 | 2021-06-25 | 湖南工业大学 | Network communication method for guest room control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |