CN1036883C - Energy-saving controller for changing motor power - Google Patents
Energy-saving controller for changing motor power Download PDFInfo
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- CN1036883C CN1036883C CN96103063A CN96103063A CN1036883C CN 1036883 C CN1036883 C CN 1036883C CN 96103063 A CN96103063 A CN 96103063A CN 96103063 A CN96103063 A CN 96103063A CN 1036883 C CN1036883 C CN 1036883C
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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- Motor And Converter Starters (AREA)
- Control Of Multiple Motors (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
The present invention relates to an energy-saving controller for changing motor power. The energy-saving controller comprises a delay control circuit, a conversion control circuit and a self bridging type program control circuit. The energy-saving controller can control a motor to start in a voltage reduction mode and an abnormal direct starting mode and meet various load traction force moments; besides, the energy-saving controller has an energy-saving function and controls the motor to run in the mode of Y-Triangle-Triangle-Y.
Description
The present invention is a kind of multi-function motor starter, is mainly used in the starting and the operation of control extend-triangle motor or superelevation slip motor, and its performance is given full play to.
The starting operation device of present existing extend-triangle motor or superelevation slip motor will be operated the knob more than two mostly, just can finish the starting of motor, operates more loaded down with trivial details.Delay cell control electric motor starting and operation when adopting time-delay relay as electric motor starting are also arranged in addition, and this delay cell is because fragile or malfunctioning, and causes the motor can not the normal starting operation; In addition or because of certain component wear, and time-delay relay still in action, makes the extend-triangle motor be in direct-on-line starting and impact electrical network; Also may occur because the effect of time-delay relay when the contacts of contactor adhesion, causes burn-down of electric motor.For example: the technical literatures such as control circuit of small machine handbook, threephase asynchronous in the practicality.
The objective of the invention is to propose a kind of simple to operate, action is safe and reliable, durable, maintenance easily, be convenient to the extend-triangle motor of penetration and promotion or the starting and the control device of high slip motor, this device has multiple function, can be used for controlling motor
Operational mode, the functional characteristic of raising motor enlarges the motor scope of application, reduces the electric motor starting electric current; The requirement that motor drags various load factor starting torques is satisfied in may command motor reduced voltage starting or abnormal across-the-line starting simultaneously; The may command motor has four kinds of different power outputs and load rational Match again, reaches power savings.
Major technique content of the present invention, energy-saving controller for changing motor power, be used for a kind of starting and control of three phase alternating current motor, it comprises delay control circuit, conversion control circuit, it is characterized in that: this device also comprises from the bridging type sequence circuit, by relay DQ and normally-closed contact DQ thereof
1, normally opened contact DQ
2Form.From bridging type sequence circuit operation principle; Utilize that current lead-through is fast to discharge time difference of slow (about 5～10 milliseconds) with relay, the contact of realization relay DQ provides the power supply supply access for its action (adhesive), the normally-closed contact self-sustaining of self after the relay DQ adhesive, normally-closed contact DQ
1Disjunction makes relay DQ break away from former current supply circuit, plays buffer action, guarantees
Conversion is reliable mutually; Delay control circuit is made up of starting button QA and relay ZC and auxiliary contact thereof and contactor YC, SC and auxiliary contact thereof, the starting button QA delay time control of holding concurrently; Conversion control circuit also comprises relay DQ, ZC and contact thereof composition by change over switch HK and contactor YC, HC, SC and contact thereof.Hold concurrently delay time control of the starting button QA of this device, the control motor must change the △ operation over to behind the Y delayed firing, just can carry out
The operational mode of mutual conversion, motor has enough big starting torque, satisfies the starting torque requirement that motor drags various different loads; Change over switch HK and from bridging type sequence circuit control motor
Mutual conversion operation, power of motor change and the load rational Match; Stop button QT controls the operating state of each circuit for various circuit provide power path.Its circuit is connected to, stop button TA one termination power V
1, the other end respectively with normally-closed contact ZC
4, starting button QA, relay ZC, relay DQ link to each other, the TA other end links to each other with contactor YC, the YC other end and normally-closed contact DQ
4Link to each other DQ
4The other end and power supply V
2Link to each other normally-closed contact ZC
4The other end respectively with selector switch HK, normally-closed contact DC
2Link to each other, HK fixed contact 1 links to each other with YC with QA, HK fixed contact 2 and normally-closed contact DC
1Link to each other DC
2The other end links to each other with HK fixed contact 3, contactor SC respectively, the SC other end respectively with normally opened contact ZC
2, normally opened contact SC
2, normally-closed contact DQ
1Link to each other ZC
2The other end and normally-closed contact HC
1Link to each other HC
1The other end and normally-closed contact YC
1Link to each other YC
1The other end links to each other with the normally-closed contact of QA, the QA other end and power supply V
2Link to each other SC
2The other end links to each other with the normally closed point of QA, the relay DQ other end respectively with normally-closed contact DQ
1, normally opened contact DQ
2Link to each other DQ
1The other end respectively with contactor SC, normally opened contact ZC
2, normally opened contact SC
2Link to each other DC
2The other end links to each other with the QA normally-closed contact.The ZC other end respectively with normally opened contact YC
2, normally opened contact ZC
1Link to each other YC
2And ZC
1Link to each other with the normally closed point of QA respectively.Often open main contacts YC
3Motor stator winding is connect the mode of connection into Y, often open main contacts HC
3With motor stator winding connect into
The mode of connection is often opened main contacts SC
3Motor stator winding connect be the delta connection mode.
Technique effect of the present invention is, only need operate a start button QA during this device starting, can finish the starting operation of motor, has advantage simple to operate than existing starting device; And do not adopt the time relay to do the starting time of delay cell control motor, but adopt the delay control circuit control starting time, so can get rid of or reduce because the time relay or delay cell damage the accident potential that is caused; Fixing starting time and the operational mode that can control motor as required by start button of delay time is simple to operate, flexible, reliable simultaneously; In addition because this device is provided with delay control circuit, conversion control circuit and from the bridging type sequence circuit, solved the shortcoming that existing extend-triangle motor or superelevation slip motor control device exist, improved the function of use and the effect of motor, the may command motor by Y →
Multiple starting and operational mode; And broken through that existing extend-triangle motor starter can only be controlled electric motor starting and simple function that can not the conversion operation mode, the existing minimizing starting current of this device simultaneously, can control motor again and have four kinds of different output powers and load rational Match, reach power savings; The operational mode that has reduced voltage starting and abnormal across-the-line starting again can satisfy the start request that motor drags various different loads rate moments.
Fig. 1 is circuit theory diagrams of the present invention.
V
1, V
2, V
3Power supply, TA stop knob, the double time-delay of QA start button, HK selector switch, YC contactor, HC contactor, SC contactor, ZC, DQ relay, DC
1, DC
2Automatically control external contact.
The circuit of this device specifically is connected to, and stops knob TA one termination power V
1, the other end respectively with normally-closed contact ZC
4, start button QA, relay ZC, DQ link to each other.The QA other end links to each other with contactor YC, the YC other end and normally-closed contact DQ
4Link to each other DQ
4The other end and power supply V
2Link to each other.Normally-closed contact ZC
4The other end respectively with selector switch HK, normally-closed contact DC
2Link to each other, HK fixed contact 1 links to each other with YC with QA, HK fixed contact 2 and normally-closed contact DC
1Link to each other DC
2The other end links to each other with HK fixed contact 3, contactor SC respectively, the SC other end respectively with normally opened contact ZC
2, normally opened contact SC
2, normally-closed contact DQ
1Link to each other ZC
2The other end and normally-closed contact HC
1Link to each other HC
1The other end and normally-closed contact YC
1Link to each other YC
1The other end links to each other with the normally-closed contact of QA, the QA other end and power supply V
2Link to each other SC
2The other end links to each other with the normally closed point of QA.The relay DQ other end respectively with normally-closed contact DQ
1, normally opened contact DQ
2Link to each other DQ
1The other end respectively with contactor SC, normally opened contact ZC
2, normally opened contact SC
2Link to each other DC
2The other end links to each other with the QA normally-closed contact.The ZC other end respectively with normally opened contact YC
2, normally opened contact ZC
1Link to each other YC
2And ZC
1Link to each other with the normally closed point of QA respectively.Often open main contacts YC
3Motor stator winding is connect the mode of connection into Y, often open main contacts HC
3With motor stator winding connect into
The mode of connection is often opened main contacts DC
3Motor stator winding connect be the delta connection mode.DC
1, DC
2For controlling the contact automatically, can realize various operational modes without manual selector switch HK; Abnormal across-the-line starting of this device may command motor and motor are in operation
Operation conversion.
The course of work of the present invention, shown in accompanying drawing one, selector switch HK moving contact is in fixed contact 3 positions, and start button QA is pressed in the operation of control motor, and contactor YC continues energising adhesive, normally-closed contact YC
1Disjunction, normally opened contact YC
2Closure, the relay ZC adhesive of switching on, himself normally opened contact ZC
1Closed self-sustaining, its normally opened contact ZC
4, ZC
2Closed for contactor SC action provides path, often open main contacts YC
3Closed motor places the operation of the Y mode of connection.Because the QA delay time effect of holding concurrently, the motor time-delay runs on the Y mode of connection, and QA resets, and delayed firing finishes, the contactor YC release of cutting off the power supply, and it often opens main contacts YC
3Disjunction, motor are in momentary power failure running, normally-closed contact YC
1Recover closed, the contactor SC adhesive of switching on, himself normally opened contact SC
2Main contacts SC is often opened in closed self-sustaining
3Closure, motor stator winding converts the delta connection mode to by the Y wiring and moves, and relay DQ is because the normally-closed contact DQ of self simultaneously
1Closure provides circuit closing relay DQ energising adhesive, and it is from putting up a bridge normally-closed contact DQ
1Disjunction is by the normally opened contact DQ of self
2Closed self-sustaining, its normally opened contact DQ
3Closure is prepared for contact point HC action, motor can be converted at any time
Mode of connection operation.After motor changes delta connection operation over to by the Y wiring, could realize motor Y, △,
The operation of any one mode of connection.Its various modes of connection are: when selecting switch HK moving contact to place fixed contact 3 positions, motor is in the delta connection mode and moves; When selecting switch HK to put with fixed contact 2 positions, the contactor SC release of cutting off the power supply, normally-closed contact SC
1Recover closed, the contactor HC adhesive of switching on, normally opened contact HC
2Main contacts HC is often opened in closed self-sustaining
3Closure, motor is converted to by delta connection
Mode of connection operation, if this moment, motor needed the delta connection operation, selector switch places HK fixed contact 3 original positions to get final product; If continue to reduce power output, selector switch HK is placed fixed contact 1 position, the contactor HC release of cutting off the power supply, normally opened contact HC
2Start button QA is pressed in disjunction, contactor HC, the contactor SC release of all cutting off the power supply, and the contactor YC adhesive of switching on, it often opens main contacts YC
3Closure, motor converts the operation of the Y mode of connection to by other mode of connection.
Extend-triangle motor or superelevation slip motor can by manual selection switch HK control motor be in Y, △,
Any mode of connection running status; Also can be by controlling contact DC automatically
1, DC
2The change of control motor operational mode.
Claims (2)
1, energy-saving controller for changing motor power, be used for a kind of starting and control of three phase alternating current motor, it comprises delay control circuit, conversion control circuit, it is characterized in that: this device also comprises from the bridging type sequence circuit, by relay (DQ) and normally-closed contact (DQ thereof
1), normally opened contact (DQ
2) form; Delay control circuit is made up of starting button (QA) and relay (ZC) and contact thereof and contactor (YC), (SC) and auxiliary contact thereof, starting button (QA) the delay time control of holding concurrently; Conversion control circuit is by change over switch (HK) and contactor (YC), (HC), (SC) and contact thereof, and relay (DQ), (ZC) and contact thereof are formed; Its circuit is connected to, stop button (TA) termination power (V
1), the other end respectively with normally-closed contact (ZC
4), starting button (QA), relay (ZC), relay (DQ) link to each other, (TA) other end links to each other with contactor (YC), (YC) other end and normally-closed contact (DQ
4) link to each other (DQ
4) other end and power supply (V
2) link to each other normally-closed contact (ZC
4) other end respectively with selector switch (HK), normally-closed contact (DC
2) link to each other, (HK) fixed contact (1) links to each other with (YC) with (QA), (HK) fixed contact (2) and normally-closed contact (DC
1) link to each other (DC
2) other end links to each other with (HK) fixed contact (3), contactor (SC) respectively, (SC) other end respectively with normally opened contact (ZC
2), normally opened contact (SC
2), normally-closed contact (DQ
1) link to each other (ZC
2) other end and normally-closed contact (HC
1) link to each other (HC
1) other end and normally-closed contact (YC
1) link to each other (YC
1) other end links to each other (QA) other end and power supply (V with the normally-closed contact of (QA)
2) link to each other (SC
2) other end links to each other with (QA) normally closed point, relay (DQ) other end respectively with normally-closed contact (DQ
1), normally opened contact (DQ
2) link to each other (DQ
1) other end respectively with contactor (SC), normally opened contact (ZC
2), normally opened contact (SC
2) link to each other (DC
2) other end links to each other with (QA) normally-closed contact.(ZC) other end respectively with normally opened contact (YC
2), normally opened contact (ZC
1) link to each other (YC
2) and (ZC
1) link to each other with (QA) normally closed point respectively.Often open main contacts (YC
3) motor stator winding is connect the mode of connection into (Y), often open main contacts (HC
3) with motor stator winding connect into
The mode of connection is often opened main contacts (SC
3) motor stator winding connect be the delta connection mode.
2, according to the described energy-saving controller for changing motor power of claim 1, it is characterized in that (DC
1), (DC
2) be to control the contact automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96103063A CN1036883C (en) | 1996-03-13 | 1996-03-13 | Energy-saving controller for changing motor power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96103063A CN1036883C (en) | 1996-03-13 | 1996-03-13 | Energy-saving controller for changing motor power |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1137196A CN1137196A (en) | 1996-12-04 |
| CN1036883C true CN1036883C (en) | 1997-12-31 |
Family
ID=5117856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96103063A Expired - Fee Related CN1036883C (en) | 1996-03-13 | 1996-03-13 | Energy-saving controller for changing motor power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1036883C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100369373C (en) * | 2006-04-29 | 2008-02-13 | 冯德义 | Total pressure (direct) motor start control circuit |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2128024Y (en) * | 1992-04-20 | 1993-03-10 | 陈明天 | Motor automatic converting electricity-saving device |
-
1996
- 1996-03-13 CN CN96103063A patent/CN1036883C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2128024Y (en) * | 1992-04-20 | 1993-03-10 | 陈明天 | Motor automatic converting electricity-saving device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1137196A (en) | 1996-12-04 |
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|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 | ||
| MM4A | Cease of patent right caused by unpayment of annual fee |