CN201733266U - One-step self-starting device for power restoration of asynchronous motor - Google Patents
One-step self-starting device for power restoration of asynchronous motor Download PDFInfo
- Publication number
- CN201733266U CN201733266U CN2010202411481U CN201020241148U CN201733266U CN 201733266 U CN201733266 U CN 201733266U CN 2010202411481 U CN2010202411481 U CN 2010202411481U CN 201020241148 U CN201020241148 U CN 201020241148U CN 201733266 U CN201733266 U CN 201733266U
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- motor
- telegram
- reply
- contactor
- circuit
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Abstract
The utility model relates to the technical field of three-phase asynchronous motors, in particular to a one-step self-starting device for power restoration of an asynchronous motor, which adopts a one-step self-starting motor restoration circuit; the device comprises the one-step self-starting motor restoration circuit which is connected on a two-phase line in a three-phase line; the one-step self-starting motor restoration circuit comprises a selection switch SA, and a parallel connecting circuit of a coil of an AC contactor KM1 which is connected with the selection switch SA and the auxiliary normally opened contact of the AC contactor KM1; the three-phase line is provided with the normally opened main contact of the AC contactor KM1 of the one-step self-starting motor restoration circuit; and the one-step self-starting device for power restoration of the asynchronous motor has the advantages of few elements and components, simple circuit and low fault rate, and can be applied to the one-step self-starting upon power-on after a short time or a long time of power-off.
Description
Technical field
The utility model relates to a kind of threephase asynchronous start-up technique field, relates in particular to a kind of motor asynchronous motor of disposable self-start circuit disposable self-starting device of sending a telegram in reply of sending a telegram in reply that adopts.
Background technology
Some enterprise can start when requiring to send a telegram here after the motor outage under certain conditions automatically again, and more when the platform number of motor in addition, and capacity also requires electronic function to start automatically when big in batches.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art and provides a kind of and can realize the disposable automatically actuated asynchronous motor of the motor disposable self-starting device of sending a telegram in reply.
This device that is achieved in that of the present utility model is made of the disposable self-start circuit of sending a telegram in reply of the motor on the two-phase circuit that is connected in the three-phase line, motor sends a telegram in reply that disposable self-start circuit comprises selector switch SA, the parallel circuits of the auxiliary normally opened contact of the coil of the A.C. contactor KM1 that is connected with selector switch SA and A.C. contactor KM1, triple line be provided with motor send a telegram in reply disposable self-start circuit A.C. contactor KM1 often open main contacts.
In motor is sent a telegram in reply disposable self-start circuit; with be connected with fuse RD1 and fuse RD2 on the circuit that triple line is connected; between fuse RD1 and fuse RD2, be connected with indicator light HL, also be connected with control motor M1 and the motor overload protection relay FR1 of M2 and the normally-closed contact of FR2 simultaneously with on the circuit that triple line is connected.
In motor is sent a telegram in reply disposable self-start circuit, also be provided with the motor relay indicating light HL1 that connects with the auxiliary normally opened contact of A.C. contactor KM1 in the parallel circuits of the coil of A.C. contactor KM1 and the auxiliary normally opened contact of A.C. contactor KM1.
The three-phase line of this device is provided with battery main switch QS, fast acting fuse FU1 and motor overload protection relay FR1 and FR2.
The utlity model has the advantage that used components and parts are few, circuit is simple, failure rate is low, the disposable self-starting when sending a telegram here again after having a power failure in short-term or for a long time.
Description of drawings
Fig. 1 is the motor of the present utility model disposable self-start circuit schematic diagram of sending a telegram in reply.
Embodiment
Motor is sent a telegram in reply disposable self-starting electric control theory figure as shown in Figure 1, and among the figure, two motors M1, M2 start simultaneously, move.This device is made of the disposable self-start circuit of sending a telegram in reply of the motor on the two-phase circuit that is connected in the three-phase line, motor sends a telegram in reply that disposable self-start circuit comprises selector switch SA, the parallel circuits of the auxiliary normally opened contact of the coil of the A.C. contactor KM1 that is connected with selector switch SA and A.C. contactor KM1, triple line be provided with motor send a telegram in reply disposable self-start circuit A.C. contactor KM1 often open main contacts.In motor is sent a telegram in reply disposable self-start circuit; with be connected with fuse RD1 and fuse RD2 on the circuit that triple line is connected; between fuse RD1 and fuse RD2, be connected with indicator light HL, also be connected with control motor M1 and the motor overload protection relay FR1 of M2 and the normally-closed contact of FR2 simultaneously with on the circuit that triple line is connected.In motor is sent a telegram in reply disposable self-start circuit, also be provided with the motor relay indicating light HL1 that connects with the auxiliary normally opened contact of A.C. contactor KM1 in the parallel circuits of the coil of A.C. contactor KM1 and the auxiliary normally opened contact of A.C. contactor KM1.The three-phase line of this device is provided with battery main switch QS, fast acting fuse FU1 and motor overload protection relay FR1 and FR2.
During normal the startup, first power turn-on master switch QS, indicator light HL is bright, shows that control circuit has power supply.With selector switch SA closure, the coil of contactor KM1 gets electric then, and three-phase is often opened the main contacts closure, motor start-up, and the auxiliary normally opened contact closure of while KM1, HL1 is bright for the motor relay indicating light, and motor normally moves.Artificially shut down if desired, can realize as long as disconnect SA.
If occur having a power failure during the motor operation, HL goes out, the KM1 coil losing electricity, and its three-phase main contacts disconnects, and its auxiliary contact also disconnect simultaneously.Be entire circuit except that QS, SA closure, all return to original initial condition.When power up, because QS, SA still are closed, the KM1 coil gets electric, and motor is self-starting again.In fact, motor just is the equal of the self-starting of disposable normal startup.
In Fig. 1 circuit, two indicator light HL, HL1 are arranged,, can understand the operating state of circuit by the state of viewing lamp.If HL does not work, may be that battery main switch QS does not have closure, power supply has a power failure or fuse blows; HL1 does not work if HL is bright, and the one, SA does not have closure, and the 2nd, the normally-closed contact of its protection relay of electromotor overload FR disconnects, KM1 dead electricity, motor stall; If HL, HL1 are simultaneously bright, show that motor is working properly.
Claims (4)
1. an asynchronous motor disposable self-starting device of sending a telegram in reply, it is characterized in that: this device is made of the disposable self-start circuit of sending a telegram in reply of the motor on the two-phase circuit that is connected in the three-phase line, motor sends a telegram in reply that disposable self-start circuit comprises selector switch SA, the parallel circuits of the auxiliary normally opened contact of the coil of the A.C. contactor KM1 that is connected with selector switch SA and A.C. contactor KM1, triple line be provided with motor send a telegram in reply disposable self-start circuit A.C. contactor KM1 often open main contacts.
2. the asynchronous motor according to claim 1 disposable self-starting device of sending a telegram in reply; it is characterized in that: in motor is sent a telegram in reply disposable self-start circuit; with be connected with fuse RD1 and fuse RD2 on the circuit that triple line is connected; between fuse RD1 and fuse RD2, be connected with indicator light HL, also be connected with control motor M1 and the motor overload protection relay FR1 of M2 and the normally-closed contact of FR2 simultaneously with on the circuit that triple line is connected.
3. the asynchronous motor according to claim 1 disposable self-starting device of sending a telegram in reply, it is characterized in that: in motor is sent a telegram in reply disposable self-start circuit, also be provided with the motor relay indicating light HL1 that connects with the auxiliary normally opened contact of A.C. contactor KM1 in the parallel circuits of the coil of A.C. contactor KM1 and the auxiliary normally opened contact of A.C. contactor KM1.
4. the asynchronous motor according to claim 1 disposable self-starting device of sending a telegram in reply, it is characterized in that: the three-phase line of this device is provided with battery main switch QS, fast acting fuse FU1 and motor overload protection relay FR1 and FR2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202411481U CN201733266U (en) | 2010-06-29 | 2010-06-29 | One-step self-starting device for power restoration of asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202411481U CN201733266U (en) | 2010-06-29 | 2010-06-29 | One-step self-starting device for power restoration of asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201733266U true CN201733266U (en) | 2011-02-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202411481U Expired - Fee Related CN201733266U (en) | 2010-06-29 | 2010-06-29 | One-step self-starting device for power restoration of asynchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201733266U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116707394A (en) * | 2023-06-26 | 2023-09-05 | 吴冠庭 | Solar power supply system structure for field campsite or small house |
-
2010
- 2010-06-29 CN CN2010202411481U patent/CN201733266U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116707394A (en) * | 2023-06-26 | 2023-09-05 | 吴冠庭 | Solar power supply system structure for field campsite or small house |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110202 Termination date: 20110629 |