CN2888711Y - Motor start/operation protector - Google Patents
Motor start/operation protector Download PDFInfo
- Publication number
- CN2888711Y CN2888711Y CN 200620081307 CN200620081307U CN2888711Y CN 2888711 Y CN2888711 Y CN 2888711Y CN 200620081307 CN200620081307 CN 200620081307 CN 200620081307 U CN200620081307 U CN 200620081307U CN 2888711 Y CN2888711 Y CN 2888711Y
- Authority
- CN
- China
- Prior art keywords
- motor
- time relay
- starting
- coil
- parallel
- 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
Links
Images
Landscapes
- Motor And Converter Starters (AREA)
Abstract
The utility model discloses a motor start-up and running protecting device, belonging to the motor control technique field, which comprises a quick-stop button AN4, a time relay 2SG and a shunt release coil Q S, wherein the quick-stop button AN4 and the time relay connected in parallel before they are connected with the coil Q S in series. The motor start-up protection device is connected in parallel in the motor reduced-voltage starting control device circuit while the time relay 2 R J is connected with the time relay 1SJ in parallel in the motor reduced-voltage starting control device circuit. When the motor is starting or running, if the head of the a-c contactor adheres or the framework is blocked, press the quick-stop button AN4, and communicate the coil QS. Communicating the coil QS makes gain electricity, which results in the air switch trip and the circuit disconnected, preventing the motor and the motor control cabinet from being burnt. With the reasonable design, simple structure, easy installation, and convenient usage, the utility model can protect the motor or the control cabinet from being damaged effectively when the motor is starting or running.
Description
One, technical field
The utility model relates to a kind of electric motor starting, running protection device, belongs to the electric machines control technology field.
Two, background technology
The machine operation load of using under forceful electric power is generally all bigger, often occurs in motor and the impaired problem of control cubicle in the reduced-voltage starting process.A kind of motor reduced-voltage starting control device is arranged, can stop the reduced-voltage starting process of motor in good time, allow motor in time enter normal operating condition, effectively prevented motor and the impaired problem of motor controlling cabinet in the reduced-voltage starting process.But,, still keep away the impaired problem of unavoidable motor or control cubicle if A.C. contactor contact adhesion or mechanism blockage take place in electric motor starting or running.
Three, summary of the invention
At the deficiencies in the prior art, the utility model provides a kind of installation reasonable in design, simple in structure, easy, easy to use, can effectively prevent motor or the impaired electric motor starting of control cubicle, running protection device in electric motor starting or running.
A kind of electric motor starting is protected, the operation protection unit, form by scram button AN4, time relay 2SJ and shunt release coil QS, connect with shunt release coil QS after scram button AN4 and the time relay 2SJ parallel connection, the electric motor starting protective device is connected in parallel in the motor reduced-voltage starting control device circuit; Simultaneously, time relay 2SJ is in parallel with the time relay 1SJ in the motor reduced-voltage starting control device circuit.
The course of work of electric motor starting, running protection device is as follows: in the electric motor starting process; if A.C. contactor contact adhesion or mechanism blockage take place; time relay 1SJ in the motor reduced-voltage starting control device circuit changed after 30 seconds less than running status; the normally opened contact timing closing of time relay 2SJ after 50 seconds; perhaps press scram button AN4 by force; connect shunt release coil QS; shunt release coil QS gets the air switch tripping operation of electric back; circuit disconnects; motor quits work, thereby has avoided motor and motor controlling cabinet to be burnt.Under motor operating state, if A.C. contactor contact adhesion or mechanism blockage take place, press scram button AN4 by force, connect shunt release coil QS, shunt release coil QS gets the air switch tripping operation of electric back, circuit disconnects, and motor quits work, thereby has avoided motor and motor controlling cabinet to be burnt.
The utlity model has installation reasonable in design, simple in structure, easy, easy to use, can in electric motor starting or running, effectively prevent motor or the impaired characteristics of control cubicle.
Four, description of drawings
Fig. 1 is an electrical schematic diagram of the present utility model.
Fig. 2 is the electrical schematic diagram of electric motor starting protective device.
Five, embodiment
Embodiment: structure of the present utility model as shown in Figure 1, form by scram button AN4, time relay 2SJ and shunt release coil QS, connect with shunt release coil QS after scram button AN4 and the time relay 2SJ parallel connection, the electric motor starting protective device is connected in parallel in the motor reduced-voltage starting control device circuit; Simultaneously, time relay 2SJ is in parallel with the time relay 1SJ in the motor reduced-voltage starting control device circuit.
Claims (1)
1, a kind of electric motor starting, running protection device, it is characterized in that, form by scram button AN4, time relay 2SJ and shunt release coil QS, connect with shunt release coil QS after scram button AN4 and the time relay 2SJ parallel connection, the electric motor starting protective device is connected in parallel in the motor reduced-voltage starting control device circuit; Simultaneously, time relay 2SJ is in parallel with the time relay 1SJ in the motor reduced-voltage starting control device circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620081307 CN2888711Y (en) | 2006-03-01 | 2006-03-01 | Motor start/operation protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620081307 CN2888711Y (en) | 2006-03-01 | 2006-03-01 | Motor start/operation protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2888711Y true CN2888711Y (en) | 2007-04-11 |
Family
ID=38047282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620081307 Expired - Fee Related CN2888711Y (en) | 2006-03-01 | 2006-03-01 | Motor start/operation protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2888711Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628858A (en) * | 2013-11-13 | 2014-03-12 | 宝鸡石油机械有限责任公司 | Emergency stop control system based on drilling machine integrated control |
| CN107869455A (en) * | 2017-11-15 | 2018-04-03 | 荏原冷热系统（中国）有限公司 | A kind of control method and system for preventing compressor damage |
-
2006
- 2006-03-01 CN CN 200620081307 patent/CN2888711Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628858A (en) * | 2013-11-13 | 2014-03-12 | 宝鸡石油机械有限责任公司 | Emergency stop control system based on drilling machine integrated control |
| CN103628858B (en) * | 2013-11-13 | 2016-04-13 | 宝鸡石油机械有限责任公司 | A kind of urgency based on rig integrating control stops control system |
| CN107869455A (en) * | 2017-11-15 | 2018-04-03 | 荏原冷热系统（中国）有限公司 | A kind of control method and system for preventing compressor damage |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2888711Y (en) | Motor start/operation protector | |
| CN202309058U (en) | Pressure-sensitive energy consumption brake protection circuit | |
| CN201781519U (en) | Mobile terminal and shutdown device thereof | |
| CN202917938U (en) | Voltage shock preventing system | |
| CN211859583U (en) | Motor protection structure | |
| CN203025493U (en) | Electrical switching system | |
| CN203553882U (en) | Transformer low-voltage tripping automatic reclosing device | |
| CN202872335U (en) | Circuit protection device for self-coupling voltage reduction starting box | |
| CN209250221U (en) | Low load current automatic detection's earth-leakage protector | |
| CN201039050Y (en) | Automatic conversion protector of three-phase asynchronous motor | |
| CN201587779U (en) | Power supply system of elevator | |
| CN201611770U (en) | Automatic phase-failure power-off protection device for three-phase motor | |
| CN202159958U (en) | General purpose engine panel | |
| CN201178302Y (en) | Three phase motor protector | |
| CN201349189Y (en) | Anti-electric dazzling actuating apparatus for three-phase asynchronous motor | |
| CN201893546U (en) | Protecting circuit system of electric motor | |
| CN210984666U (en) | Automatic combined floodgate device of conventional circuit breaker combined with power supply | |
| CN201450240U (en) | Locking device of earthing switch blade | |
| CN208240589U (en) | Intelligent universal circuit breaker | |
| CN2251794Y (en) | Charging surge arrester for ac contactor | |
| CN202230954U (en) | No-voltage energy saving AC contactor | |
| CN202474839U (en) | Alternating current emergency tripping power supply | |
| CN102255286A (en) | Protection circuit system of motor | |
| CN200953468Y (en) | Automatic open-phase protector | |
| CN201493603U (en) | Secondary side idling voltage protecting device of electric welding machine |
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: 20070411 |