CN87205928U - Multi-functional electric motor starter - Google Patents
Multi-functional electric motor starter Download PDFInfo
- Publication number
- CN87205928U CN87205928U CN 87205928 CN87205928U CN87205928U CN 87205928 U CN87205928 U CN 87205928U CN 87205928 CN87205928 CN 87205928 CN 87205928 U CN87205928 U CN 87205928U CN 87205928 U CN87205928 U CN 87205928U
- Authority
- CN
- China
- Prior art keywords
- contactor
- starting
- starter
- contact
- motor
- 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
- Motor And Converter Starters (AREA)
Abstract
The utility model discloses a multi-functional motor starter. The existing starter has the defects that the electrocircuit is complex, many elements are used, while in operation, the starting of the motor can be completed by pressing more than three buttons, the starting of the motor can be affected by the environment and the temperature easily. The utility model has the advantages of high reliability, convenient operation, simple starter electrocircuit, and few elements; when the starting button is pressed by hand, the starter controls the motor to do starting operation, when the hand is raised, the motor can be exchanged into the normal operation, the starting time is controlled by the time of pressing the button, a stop button controls the total work status of the starter.
Description
The utility model belongs to a kind of improved motor starter.
Present existing motor starter has two types, and a kind of button type starter is made up of parts such as knob, A.C. contactors, need operate three above knobs during work and just can finish the starting of motor, operating state such as move, stop.The circuit element of this starter complicated operation, needs is many, cost is high.Another kind of type is the starter that the time relay is housed, as French Siemens star-triangle contactor starter, this starter is made up of parts such as the time relay, knob, A.C. contactors, need be during operation by the start button electric motor starting, automaticallying switch after the time relay prolongs enters normal operating conditions.This starter is subject to the external condition influence, when strong vibration relates to delay cell or overcurrent relay, when changing, star-triangle may be short-circuited, time relay easy break-down under cryogenic conditions, can not in time switch and enter normal operation, be in starting operation for a long time, make motor overheating or burn.
The purpose of this utility model is, overcomes the shortcoming that above-mentioned motor starter exists, and proposes a kind of improved multi-function motor starter, can satisfy multiple needs, and circuit is simple.
Major technique content of the present utility model is that this starter is formed by stopping knob, start button, starting contactor, power supply control contactor, operation contactor and corresponding contact and main contact.Hand is pressed start button, and starter control motor is done starting operation, and starter entered normal operation with the motor switching immediately when hand lifted.Starting time stops whole operating states of knob control starter by the time decision of hand knob.
The utility model and prior art ratio have multiple function and can finish star delta starting control, the control of extend-triangle reduced voltage starting, double speed starting and quicken control, phase-wound rotor asynchronous machine starting control, additional autotransformer reduced voltage starting control etc. automatically.Simultaneously circuit is simple, components and parts are few, cost is low, easy and simple to handle, not free relay in the circuit, be difficult for influenced by ambient temperature, with knob operation control starting time, reliable in action.
Accompanying drawing 1 is circuit theory diagrams of the present utility model.
Accompanying drawing 2 is the utility model star-connection delta line traffic control drawing.
1 stops knob, 2 start buttons, 3 starting contactores, 4 power supply control contactors, 5 operation contactors, the auxiliary normal opened contact of 3-1 starting contactor, the 3-2 starting contactor is assisted normally closed contact, the auxiliary normal opened contact of 4-1 power contactor, the auxiliary normal opened contact of 4-2 power contactor, the auxiliary normal opened contact of 5-1 operation contactor, the auxiliary normally closed contact of 5-2 operation contactor, 3-3 starting contactor main contact, 4-3 power supply control contactor main contact, 5-3 moves main noddle on contactor, 6 motors.
Circuit theory of the present utility model stops knob (1) and is normally closed knob one termination power b end as shown in Figure 1, and the other end is connected with the wire loop of starting contactor (3), power supply control contactor (4), operation contactor (5) simultaneously.At first, stop often to open knob and the auxiliary normally closed contact (5-2) that moves contactor by the power supply b end of twisting joint through start button (2), link to each other with coil one end of starting contactor (3), the coil other end and power supply a end are connected to form the loop; Auxiliary normal opened contact (4-1) parallel connection of the auxiliary normal opened contact (3-1) of starting contactor, power supply control contactor, one end with stop knob and be connected, the other end is connected with the coil of wire one end of power supply control contactor (4), and the coil other end and power supply a end are connected to form the loop; The auxiliary normally closed contact (3-2) of starting contactor is with after the auxiliary normal opened contact (4-2) of power supply control contactor is connected, in parallel with the auxiliary normal opened contact (5-1) of operation contactor, back in parallel one end with stop knob and be connected, the other end is connected with the coil of operation contactor (5), and another termination power of coil a end forms the loop.
Embodiment of the present utility model is controlled to be example explanation operation principle of the present utility model with the asynchronous machine star delta starting as shown in Figure 2.Press start button 2, auxiliary normally closed contact (5-2) by the operation contactor, make the coil of wire adhesive action of starting contactor 3, the closed mode of connection that changes motor of the main contact of starting contactor (3-3) is done starting and is prepared, starting contactor assists normally closed contact (3-2) to disconnect, and auxiliary normal opened contact (3-1) is connected, and makes power contactor (4) adhesive action, power contactor main contact (4-3) is connected power supply and motor windings, and motor is made starting operation.The auxiliary normal opened contact (4-1) of power contactor (4) is connected the self-sustaining of back as power contactor, the auxiliary normal opened contact (4-2) of power contactor is connected, but because of the auxiliary normal opened contact (3-2) of starting contactor is in disconnection at this moment, so operation contactor (5) still is in open-circuit condition, can not the adhesive action.Time by knob is exactly the delay time of electric motor starting.After treating that motor reaches certain rotating speed, knob 2 resets, and the coil losing electricity of starting contactor (3) resets, and makes the main contact (3-3) of the starting contactor motor windings open circuit that resets, and the auxiliary normally closed contact (3-2) of starting contactor restores and is normally off.The coil of operation contactor (5) is by the auxiliary normally closed contact (3-2) of starting contactor, auxiliary normal opened contact (4-2) the adhesive action of power supply control contactor, the main contact (5-3) of operation contactor is connected motor windings is connected into triangle, enters normal operation.The auxiliary normal opened contact (5-1) of operation contactor is connected self-sustaining, and auxiliary normally closed contact (5-2) disconnects, and guarantees starting contactor (3) not misoperation when operation contactor (5) work.Disconnecting motor by knob (1) circuit quits work.
The circuit principle structure of the utility model inside is constant, the motor wiring connects according to explanation of the present utility model, can do star delta starting control, the control of extend-triangle reduced voltage starting, double speed starting and quicken control, phase-wound rotor asynchronous machine starting control, additional autotransformer reduced voltage starting control etc. automatically.
Claims (3)
1, a kind of improved motor starter, it is made up of knob, contactor and the main contact that contacts, auxiliary contact, the circuit that is characterised in that of the present utility model is formed by stopping knob, start button, starting contactor, power supply control contactor, operation contactor and corresponding contact and contact, hand is pressed start button, the running of starter control electric motor starting, starter entered normal operation with the motor switching immediately when hand lifted.Starting time stops the multi-function motor starter of whole operating states of knob control starter by the time decision of hand knob.
2, multi-function motor starter according to claim 1 is characterized in that stopping knob and is connected with coil one end of starting contactor through the auxiliary normally closed contact of start button with the operation contactor, and the coil other end and power supply are connected to form the loop.
3, multi-function motor starter according to claim 1, the auxiliary normally closed contact that it is characterized in that starting contactor is with after the auxiliary normal opened contact of power supply control contactor is connected, the auxiliary normal opened contact parallel connection that contacts with operation, back in parallel one end is connected with stopping to connect turning round, the other end is connected with the coil of operation contactor, and another termination power of coil forms the loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87205928 CN87205928U (en) | 1987-03-31 | 1987-03-31 | Multi-functional electric motor starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87205928 CN87205928U (en) | 1987-03-31 | 1987-03-31 | Multi-functional electric motor starter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87205928U true CN87205928U (en) | 1988-03-02 |
Family
ID=4821595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87205928 Expired - Lifetime CN87205928U (en) | 1987-03-31 | 1987-03-31 | Multi-functional electric motor starter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87205928U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101860287A (en) * | 2010-06-29 | 2010-10-13 | 河南省电力公司许昌供电公司 | Economical and practical Y-delta starting device |
-
1987
- 1987-03-31 CN CN 87205928 patent/CN87205928U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101860287A (en) * | 2010-06-29 | 2010-10-13 | 河南省电力公司许昌供电公司 | Economical and practical Y-delta starting device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2311889Y (en) | Controller for electric machine | |
| CN211089503U (en) | Motor soft start cabinet | |
| CN87205928U (en) | Multi-functional electric motor starter | |
| CN218068102U (en) | Power supply transient test equipment | |
| CN211063540U (en) | Energy-saving soft start cabinet | |
| CN211046803U (en) | Star-delta voltage reduction starting circuit | |
| CN211830632U (en) | Motor control circuit of shared frequency converter | |
| CN215268105U (en) | Dual-motor soft start electric control system | |
| CN2348516Y (en) | Phase interruption protection starter for a set of three-phase AC motor | |
| CN2378881Y (en) | Energy-saving device for slip motor | |
| CN218733974U (en) | Speed regulation control cabinet for single-double winding double-speed motor | |
| CN217607699U (en) | Slow starting device of three-phase grid-connected star-connected chain type current converter | |
| CN2593462Y (en) | Motor start circuit of closed star-delta conversion | |
| CN220122803U (en) | Switching control circuit of frequency converter in emergency mode | |
| CN2153173Y (en) | Non-breaking switching of single-winding two-speed motor | |
| CN2290952Y (en) | Voltage reducing starter | |
| CN212435617U (en) | Frequency converter bypass protection device and frequency converter system | |
| CN211266804U (en) | Control system based on normal motor direct start | |
| CN2636498Y (en) | Magnetic saturation type motor voltage regulating starter | |
| CN2347309Y (en) | Electrical control device of motor point action | |
| CN2281040Y (en) | Low-voltage electric combined switch | |
| CN2217276Y (en) | Protection arrangement against phase interruption for three phase electric motor | |
| CN2248421Y (en) | power-saving controller for electric motor | |
| CN2161017Y (en) | Energy-saving autocoupling reduced-voltage starter | |
| CN2216293Y (en) | Dry vacuum load shunt switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |