CN109495022A - A kind of motor start-up procedure protector - Google Patents
A kind of motor start-up procedure protector Download PDFInfo
- Publication number
- CN109495022A CN109495022A CN201811396547.2A CN201811396547A CN109495022A CN 109495022 A CN109495022 A CN 109495022A CN 201811396547 A CN201811396547 A CN 201811396547A CN 109495022 A CN109495022 A CN 109495022A
- Authority
- CN
- China
- Prior art keywords
- motor
- torque
- torque limiter
- controller
- output shaft
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000001012 protector Effects 0.000 title claims abstract description 13
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 230000005611 electricity Effects 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 abstract description 4
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- H02P1/02—Details of starting control
- H02P1/022—Security devices, e.g. correct phase sequencing
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/185—Electrical failure alarms
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
The present invention provides a kind of motor start-up procedure protector, including being equipped with a torque limiter and angular transducer on motor output shaft, the angular transducer is electrically connected with the controller, to detect motor output shaft rotational angle, when angular transducer detection angles changing value is zero, controller controls warning device automatic alarm, the motor is electrically connected with motor protecter, the motor protecter is because of voltage, when current anomaly disconnects, the controller controls warning device automatic alarm, the present invention protects Motor torque using torque limiter, using motor protecter to electric moter voltage, electric current carries out overload protection, and the rotation of moment detection motor output shaft, work as current of electric, voltage, when torque occurs abnormal, controller controls alarm automatic alarm, discharge electrical fault in time.
Description
Technical field
The present invention relates to electric motor protecting technical field more particularly to a kind of motor start-up procedure protectors.
Background technique
The start-up course of motor is a significant process in motor operation course, especially AC asynchronous motor
Asynchronous starting process when start-up course and pump storage machines are as motor.Motor asynchronous starting process electric current is excessive to be
The shortcomings that motor itself can not overcome, motor start-up procedure electric current is excessive not only can to make power grid generate excessive voltage landing
And influence to connect the normal operation of other electric machinery and apparatus on power grid, and motor itself can be made by excessive electricity
The impact of magnetic force, the danger for also overheating machine winding, to influence the operational safety of motor.Therefore people always want to
Motor is if a failure occurs in start-up course, at once starting protection equipment, in case motor is damaged.
Therefore, it is very necessary for inventing a kind of motor start-up procedure protector.
Summary of the invention
For in the prior art, defect existing for motor start-up procedure protector, a primary object of the present invention exists
In providing a kind of motor start-up procedure protector.
In order to solve the above technical problems, the present invention provides a kind of motor start-up procedure protector, including torque limit
Device, motor, motor protecter, angular transducer, controller, warning device；One torque limiter is installed on motor output shaft
And angular transducer, the angular transducer are electrically connected with the controller, to detect motor output shaft rotational angle, when angle passes
When sensor detection angles changing value is zero, controller controls warning device automatic alarm, and the motor is electrically connected with motor protecter
It connects, when the motor protecter is disconnected because of voltage, current anomaly, the controller controls warning device automatic alarm.
Preferably, the torque limiter uses friction type torque limiter.
Preferably, the torque limiter torque is less than the nominal torque of motor.
Preferably, the controller can real motor electric current, voltage, torque value.
The present invention protects Motor torque using torque limiter, using motor protecter to electric moter voltage, electric current
Carry out overload protection, and the rotation of moment detection motor output shaft, when current of electric, voltage, torque occur abnormal, controller
Alarm automatic alarm is controlled, electrical fault is discharged in time.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is frame diagram of the invention.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples, and embodiments of the present invention include but is not limited to
The following example.
To achieve the goals above, The technical solution adopted by the invention is as follows:
As shown in Figure 1, the motor start-up procedure protector, including torque limiter, motor, motor protecter, angle sensor
Device, controller, warning device；One torque limiter and angular transducer, the angular transducer are installed on motor output shaft
It is electrically connected with the controller, to detect motor output shaft rotational angle, when angular transducer detection angles changing value is zero, control
Device processed controls warning device automatic alarm, and the motor is electrically connected with motor protecter, and the motor protecter is because of voltage, electric current
When abnormal disconnection, the controller controls warning device automatic alarm.
Preferably, the torque limiter uses friction type torque limiter.
Preferably, the torque limiter torque is less than the nominal torque of motor.
Preferably, the controller can real motor electric current, voltage, torque value.
The present invention protects Motor torque using torque limiter, using motor protecter to electric moter voltage, electric current
Carry out overload protection, and the rotation of moment detection motor output shaft, when current of electric, voltage, torque occur abnormal, controller
Alarm automatic alarm is controlled, electrical fault is discharged in time.
Using technical solutions according to the invention or those skilled in the art under the inspiration of technical solution of the present invention,
Similar technical solution is designed, and reaches above-mentioned technical effect, is to fall into protection scope of the present invention.
Claims (4)
1. a kind of motor start-up procedure protector, which is characterized in that including torque limiter, motor, motor protecter, angle
Sensor, controller, warning device；One torque limiter and angular transducer are installed, the angle passes on motor output shaft
Sensor is electrically connected with the controller, to detect motor output shaft rotational angle, when angular transducer detection angles changing value is zero
When, controller controls warning device automatic alarm, and the motor is electrically connected with motor protecter, and the motor protecter is because of electricity
When pressure, current anomaly disconnect, the controller controls warning device automatic alarm.
2. motor start-up procedure protector as described in claim 1, which is characterized in that the torque limiter is using frictional
Torque limiter.
3. motor start-up procedure protector as described in claim 1, which is characterized in that the torque limiter torque is less than electricity
The nominal torque of machine.
4. motor start-up procedure protector as described in claim 1, which is characterized in that the controller can real motor electricity
Stream, voltage, torque value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811396547.2A CN109495022A (en) | 2018-11-22 | 2018-11-22 | A kind of motor start-up procedure protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811396547.2A CN109495022A (en) | 2018-11-22 | 2018-11-22 | A kind of motor start-up procedure protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109495022A true CN109495022A (en) | 2019-03-19 |
Family
ID=65697327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811396547.2A Pending CN109495022A (en) | 2018-11-22 | 2018-11-22 | A kind of motor start-up procedure protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109495022A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113472112A (en) * | 2021-08-05 | 2021-10-01 | 威海西立电子有限公司 | Rotor cooling method and system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2331128Y (en) * | 1997-03-08 | 1999-07-28 | 郁洪兴 | Motor start-up self-control device |
| CN102412563A (en) * | 2011-11-21 | 2012-04-11 | 哈尔滨电机厂有限责任公司 | Motor start-up procedure protector |
| CN103546069A (en) * | 2013-09-29 | 2014-01-29 | 国家电网公司 | Novel Y-Deltastarting box |
| CN103671607A (en) * | 2012-09-20 | 2014-03-26 | 鸿富锦精密工业（深圳）有限公司 | Torque limiter |
| CN203933469U (en) * | 2014-06-30 | 2014-11-05 | 厦门市成业辰机械有限公司 | A kind of synchronous control system of closed carrier chain multiple electric motors |
| CN204784299U (en) * | 2015-07-06 | 2015-11-18 | 中铁工程装备集团有限公司 | Shield constructs owner's driving torque limiter protection device |
-
2018
- 2018-11-22 CN CN201811396547.2A patent/CN109495022A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2331128Y (en) * | 1997-03-08 | 1999-07-28 | 郁洪兴 | Motor start-up self-control device |
| CN102412563A (en) * | 2011-11-21 | 2012-04-11 | 哈尔滨电机厂有限责任公司 | Motor start-up procedure protector |
| CN103671607A (en) * | 2012-09-20 | 2014-03-26 | 鸿富锦精密工业（深圳）有限公司 | Torque limiter |
| CN103546069A (en) * | 2013-09-29 | 2014-01-29 | 国家电网公司 | Novel Y-Deltastarting box |
| CN203933469U (en) * | 2014-06-30 | 2014-11-05 | 厦门市成业辰机械有限公司 | A kind of synchronous control system of closed carrier chain multiple electric motors |
| CN204784299U (en) * | 2015-07-06 | 2015-11-18 | 中铁工程装备集团有限公司 | Shield constructs owner's driving torque limiter protection device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113472112A (en) * | 2021-08-05 | 2021-10-01 | 威海西立电子有限公司 | Rotor cooling method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190319 |