CN105406772A - Universal soft-start device for wire winding type and cage type asynchronous motors and using method - Google Patents
Universal soft-start device for wire winding type and cage type asynchronous motors and using method Download PDFInfo
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- CN105406772A CN105406772A CN201510969110.3A CN201510969110A CN105406772A CN 105406772 A CN105406772 A CN 105406772A CN 201510969110 A CN201510969110 A CN 201510969110A CN 105406772 A CN105406772 A CN 105406772A
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- Prior art keywords
- isolating switch
- adjustable resistance
- type asynchronous
- asynchronous motor
- wire winding
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/26—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor And Converter Starters (AREA)
Abstract
The invention relates to a universal soft-start device for wire winding type and cage type asynchronous motors and a using method. When a tested motor is a cage type asynchronous motor, a stator of the cage type asynchronous motor is connected with an output end, a disconnecting switch K2 and a disconnecting switch K3 are switched on, power is supplied through an input end 1, and an adjustable resistor is adjusted to realize reduced voltage starting, after starting, a vacuum circuit breaker QF is switched on to be in short connection with the adjustable resistor, and the cage type asynchronous motor runs normally; and when the tested motor is a wire winding type asynchronous motor, a stator of the wire winding type asynchronous motor is connected with the output end, a rotor of the wire winding type asynchronous motor is connected with an input end 2, a disconnecting switch K1, a disconnecting switch K4 and a disconnecting switch K5 are switched on, power is supplied through the input end 1, the adjustable resistor is adjusted to realize reduced voltage starting, after starting, the vacuum circuit breaker QF is switched on to be in short connection with the adjustable resistor, and the wire winding type asynchronous motor runs normally. The universal soft-start device has the advantages as follows: starting demands of wire winding type and cage type asynchronous motor tests can be met via one set of device, the structure is simple and the space is saved.
Description
Technical field
The present invention relates to a kind of general soft starting device for winding-type and squirrel cage induction motor and using method.
Background technology
In motor testing process, asynchronous machine is very common a kind of motor, and asynchronous machine is divided into cage modle and winding-type two type, mode of connection when this two type starts is not identical, the asynchronous machine of cage modle and winding-type is furnished with different starting devices respectively, meets the demand of test.
Summary of the invention
For overcoming the deficiencies in the prior art, the object of this invention is to provide a kind of general soft starting device for winding-type and squirrel cage induction motor and using method, make winding-type and squirrel cage induction motor at the trial, the startup demand of asynchronous machine can be met with a set of starting drive.
For achieving the above object, the present invention is achieved through the following technical solutions:
A kind of general soft starting device for winding-type and squirrel cage induction motor, comprise isolating switch K1, isolating switch K2, isolating switch K3, isolating switch K4, isolating switch K5, vacuum circuit-breaker QF, adjustable resistance, three-phase input 1 end respectively with isolating switch K2 one end, isolating switch K1 one end connects, the isolating switch K2 other end and adjustable resistance one end, vacuum circuit-breaker QF one end, isolating switch K4 one end connects, the adjustable resistance other end, after the vacuum circuit-breaker QF other end connects and isolating switch K3 one end, isolating switch K5 one end connects, the isolating switch K4 other end is connected with input 2 ends, isolating switch K5 mono-termination isolating switch K3 one end, the isolating switch K5 other end connects asterism, the isolating switch K1 other end is connected with output, the isolating switch K3 other end is connected with output.
For the using method of the general soft starting device of winding-type and squirrel cage induction motor,
When being squirrel cage induction motor by experiment electric motor, stator and the output of squirrel cage induction motor connect, isolating switch K2, isolating switch K3 close a floodgate, by inputting 1 end to electricity, regulating adjustable resistance, realizing reduced-voltage starting, after startup terminates, vacuum short-circuiting device QF closes a floodgate, short circuit adjustable resistance, and squirrel cage induction motor normally runs;
When being wound type asynchronous motor by experiment electric motor, stator and the output of wound type asynchronous motor connect, rotor and input 2 ends connect, and isolating switch K1, isolating switch K4, isolating switch K5 close a floodgate, by inputting 1 end to electricity, regulate adjustable resistance, realize reduced-voltage starting, after startup terminates, vacuum circuit-breaker QF closes a floodgate, short circuit adjustable resistance, wound type asynchronous motor normally runs.
Compared with prior art, the invention has the beneficial effects as follows:
Can meet winding-type and squirrel cage induction motor test startup demand with a set of starting drive, whole apparatus structure is simple, saves space.
Accompanying drawing explanation
Fig. 1 is electrical schematic diagram of the present invention.
Embodiment
Below in conjunction with Figure of description, the present invention is described in detail, but it should be noted that enforcement of the present invention is not limited to following execution mode.
See Fig. 1, a kind of general soft starting device for winding-type and squirrel cage induction motor, comprise isolating switch K1, isolating switch K2, isolating switch K3, isolating switch K4, isolating switch K5, vacuum circuit-breaker QF, adjustable resistance, three-phase input 1 end respectively with isolating switch K2 one end, isolating switch K1 one end connects, the isolating switch K2 other end and adjustable resistance one end, vacuum circuit-breaker QF one end, isolating switch K4 one end connects, the adjustable resistance other end, after the vacuum circuit-breaker QF other end connects and isolating switch K3 one end, isolating switch K5 one end connects, the isolating switch K4 other end is connected with input 2 ends, another termination isolating switch K3 one end of isolating switch K5, the isolating switch K5 other end connects asterism, the isolating switch K1 other end is connected with output, the isolating switch K3 other end is connected with output.
In practical application, this device is by adjustable resistance cabinet, and isolation cabinet, operating desk forms.Water resistance, vacuum circuit-breaker QF are housed in adjustable resistance cabinet, after motor normally starts, vacuum circuit-breaker QF combined floodgate short circuit adjustable resistance.Servomotor is also housed for regulating the resistance of adjustable resistance in adjustable resistance cabinet.Meanwhile, water resistance water level, temperature alarm system are also housed.
Isolation cabinet is divided into 2 cabinets, and isolating switch K1, isolating switch K2, isolating switch K4 are in isolation cabinet 1, and isolating switch K3, isolating switch K5 are in isolation cabinet 2, and adjustable resistance cabinet is arranged between isolation cabinet 1 and isolation cabinet 2.In isolation cabinet, voltage transformer, current transformer, misoperation control system are housed, for controlling isolating switch, as when isolating switch K2 closes a floodgate, can only close a floodgate K3, and other isolating switches cannot action, prevents misoperation.
Operating desk is equipped with push-button switch, is used for controlling servomotor and regulates water resistance resistance, control vacuum circuit-breaker QF short circuit water resistance.And multifunctional meter is housed, show electric current by instrument transformer, voltage.Alarm lamp, buzzer are also housed, play the alarm function to water resistance water level, temperature, also water temperature is housed, water level display list.
Isolate cabinet 1, connect with copper bar between isolation cabinet 2 and adjustable resistance cabinet, they are connected by cable with operating desk.
When asynchronous machine is tested, start-up course is, the manually corresponding isolating switch of operation combined floodgate, by inputting 1 end energising, regulate water resistance resistance by operating desk button, descending, when tested motor reaches rated voltage, startup completes, and by operating desk button short circuit adjustable resistance, motor enters normal operation.
Concrete operations are: when being squirrel cage induction motor by experiment electric motor, stator and the output of squirrel cage induction motor connect, isolating switch K2, isolating switch K3 close a floodgate, by inputting 1 end to electricity, regulating adjustable resistance, realizing reduced-voltage starting, after startup terminates, vacuum short-circuiting device QF closes a floodgate, short circuit adjustable resistance, and squirrel cage induction motor normally runs;
When being wound type asynchronous motor by experiment electric motor, stator and the output of wound type asynchronous motor connect, rotor and input 2 ends connect, and isolating switch K1, isolating switch K4, isolating switch K5 close a floodgate, by inputting 1 end to electricity, regulate adjustable resistance, realize reduced-voltage starting, after startup terminates, vacuum circuit-breaker QF closes a floodgate, short circuit adjustable resistance, wound type asynchronous motor normally runs.
The a set of starting drive of the present invention can meet winding-type and squirrel cage induction motor test startup demand, and whole apparatus structure is simple, saves space.
Claims (2)
1. the general soft starting device for winding-type and squirrel cage induction motor, it is characterized in that, comprise isolating switch K1, isolating switch K2, isolating switch K3, isolating switch K4, isolating switch K5, vacuum circuit-breaker QF, adjustable resistance, three-phase input 1 end respectively with isolating switch K2 one end, isolating switch K1 one end connects, the isolating switch K2 other end and adjustable resistance one end, vacuum circuit-breaker QF one end, isolating switch K4 one end connects, the adjustable resistance other end, after the vacuum circuit-breaker QF other end connects and isolating switch K3 one end, isolating switch K5 one end connects, the isolating switch K4 other end is connected with input 2 ends, isolating switch K5 mono-termination isolating switch K3 one end, the isolating switch K5 other end connects asterism, the isolating switch K1 other end is connected with output, the isolating switch K3 other end is connected with output.
2. the using method of a kind of general soft starting device for winding-type and squirrel cage induction motor according to claim 1, is characterized in that,
When being squirrel cage induction motor by experiment electric motor, stator and the output of squirrel cage induction motor connect, isolating switch K2, isolating switch K3 close a floodgate, by inputting 1 end to electricity, regulating adjustable resistance, realizing reduced-voltage starting, after startup terminates, vacuum short-circuiting device QF closes a floodgate, short circuit adjustable resistance, and squirrel cage induction motor normally runs;
When being wound type asynchronous motor by experiment electric motor, stator and the output of wound type asynchronous motor connect, rotor and input 2 ends connect, and isolating switch K1, isolating switch K4, isolating switch K5 close a floodgate, by inputting 1 end to electricity, regulate adjustable resistance, realize reduced-voltage starting, after startup terminates, vacuum circuit-breaker QF closes a floodgate, short circuit adjustable resistance, wound type asynchronous motor normally runs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510969110.3A CN105406772B (en) | 2015-12-22 | 2015-12-22 | For winding-type and the general soft starting device and application method of squirrel cage induction motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510969110.3A CN105406772B (en) | 2015-12-22 | 2015-12-22 | For winding-type and the general soft starting device and application method of squirrel cage induction motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105406772A true CN105406772A (en) | 2016-03-16 |
| CN105406772B CN105406772B (en) | 2017-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510969110.3A Active CN105406772B (en) | 2015-12-22 | 2015-12-22 | For winding-type and the general soft starting device and application method of squirrel cage induction motor |
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| CN (1) | CN105406772B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347140A (en) * | 2018-10-12 | 2019-02-15 | 珠海格力电器股份有限公司 | Photovoltaic air conditioner, control method and device thereof, direct current power grid and readable storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002354856A (en) * | 2001-05-25 | 2002-12-06 | Meidensha Corp | Starter for wound-rotor type motor |
| EP1777805A1 (en) * | 2005-10-21 | 2007-04-25 | Jakob, Karl, Dipl.-Ing.(FH) | Supply circuit for an AC motor |
| CN201054558Y (en) * | 2007-04-13 | 2008-04-30 | 刘复兴 | Three-phase mouse cage asynchronous electromotor start device |
| CN203326945U (en) * | 2013-04-11 | 2013-12-04 | 谢有神 | Automatic control device capable of reducing speed, increasing torque and limiting current of electric motor |
-
2015
- 2015-12-22 CN CN201510969110.3A patent/CN105406772B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002354856A (en) * | 2001-05-25 | 2002-12-06 | Meidensha Corp | Starter for wound-rotor type motor |
| EP1777805A1 (en) * | 2005-10-21 | 2007-04-25 | Jakob, Karl, Dipl.-Ing.(FH) | Supply circuit for an AC motor |
| CN201054558Y (en) * | 2007-04-13 | 2008-04-30 | 刘复兴 | Three-phase mouse cage asynchronous electromotor start device |
| CN203326945U (en) * | 2013-04-11 | 2013-12-04 | 谢有神 | Automatic control device capable of reducing speed, increasing torque and limiting current of electric motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347140A (en) * | 2018-10-12 | 2019-02-15 | 珠海格力电器股份有限公司 | Photovoltaic air conditioner, control method and device thereof, direct current power grid and readable storage medium |
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| Publication number | Publication date |
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| CN105406772B (en) | 2017-11-21 |
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