CN106253229A - Motor protector - Google Patents
Motor protector Download PDFInfo
- Publication number
- CN106253229A CN106253229A CN201610716263.1A CN201610716263A CN106253229A CN 106253229 A CN106253229 A CN 106253229A CN 201610716263 A CN201610716263 A CN 201610716263A CN 106253229 A CN106253229 A CN 106253229A
- Authority
- CN
- China
- Prior art keywords
- motor
- control unit
- single chip
- chip control
- module
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
- H02H7/0852—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load directly responsive to abnormal temperature by using a temperature sensor
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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
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
-
- 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
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/02—Providing protection against overload without automatic interruption of supply
- H02P29/024—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load
- H02P29/027—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load the fault being an over-current
-
- 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
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/02—Providing protection against overload without automatic interruption of supply
- H02P29/032—Preventing damage to the motor, e.g. setting individual current limits for different drive conditions
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
Abstract
The invention discloses motor protector, include single chip control unit and the display screen being electrically connected with single chip control unit, single chip control unit has been simultaneously connected with current transformer, voltage transformer, Hall element, temperature sensor, voice alarm module, wireless transport module, thunder-lightning module, air switch, earth leakage protective device, autotransformer, magnetic field detection coil and thermorelay, reasonable in design, by detection voltage, electric current, temperature and position of bearings information, can effectively protect three-phase motor, degree of accuracy is high, reliable, stability is high；Each line parameter of motor operation can be demonstrated, it is simple to people analyze reason, and can control convenient with the parameter of distinct feed-back motor operation by wireless transport module above display screen；And autotransformer can adjust the running voltage at motor two ends automatically, prevent under-voltage and overvoltage, improve the service life of motor.
Description
Technical field
The present invention relates to technical field of electronic components, especially relate to motor protector.
Background technology
Energy-conservation refer to that reinforcement can manage, take technically feasible, reasonable in economy and environment and society to bear
Measure, reduce from production of energy to consumption links loss and waste, more efficient, utilize the energy reasonablely "；
" long-range strategy and policy of Energy Conservation economy ".Energy-conservation is system engineering.According to incompletely statistics, the 1KW-that the whole nation is run
320KW low-tension motor quantity is 60,000,000, accounts for more than the 70% of electrical network power consumption, is to apply in industrial or agricultural and business system
Most commonly used power-equipment.Motor quantity about 3,000,000 is burnt in the whole nation every year, and capacity is 1,000,000,000 kilowatts, is often only electronic
Machine is several hundred million degree with regard to power consumption during burning, and repairing cost lexpenses is up to several about 10,000,000,000 yuan, causes stop work and production loss unexpectedly to reach number
10000000000 yuan.The most above-mentioned expense not very, also can cause power drop after motor repair, and power consumption is big, and degradation directly affects enterprise
Industry normally produces.
Nowadays, upper motor protection product in market is not sought unity of standard, and model specification is multifarious.Manufacturer is in order to full
The foot different use demand of user derives a lot of series of products, of a great variety brings inconvenience to users' type selecting,
User should take into full account motor protection actual demand when type selecting, rationally selects defencive function and protected mode, can be only achieved
Good protected effect, reaches raising equipment operational reliability, reduces unplanned parking, reduces the purpose of causality loss.
Summary of the invention
The problem to be solved in the present invention there is provided a kind of reasonable in design, energy-conserving and environment-protective, safety height, degree of accuracy height and transports
The reliable motor protector of row.
For solving above-mentioned technical problem, the technical solution used in the present invention is: motor protector, includes Single-chip Controlling
Unit and the display screen being electrically connected with described single chip control unit, described single chip control unit has been simultaneously connected with electric current
Transformer, voltage transformer, Hall element, temperature sensor, voice alarm module, wireless transport module, thunder-lightning module,
Air switch, earth leakage protective device, autotransformer, magnetic field detection coil and thermorelay, described autotransformer includes electricity
Magnetic adjustable transformer and the energy-saving control loop module being connected with described electromagnetic voltage adjusting transformator.
Preferably, above-mentioned motor protector, the model of wherein said single chip control unit is the STC89S52 of 32.
Preferably, above-mentioned motor protector, wherein said single chip control unit is gone here and there by RS232 with described display screen
Row communication mode is communicatively coupled.
Preferably, above-mentioned motor protector, wherein said Hall element is arranged on the output shaft of motor, described suddenly
Your sensor is used for detecting the position of described motor inner bearing.
Preferably, above-mentioned motor protector, wherein said current transformer is connected on the main circuit of described motor, institute
State voltage transformer to be connected in parallel on the main circuit of described motor.
Preferably, above-mentioned motor protector, wherein said temperature sensor is arranged on the stator winding of described motor
Internal.
Preferably, above-mentioned motor protector, wherein said thunder-lightning module is connected with the outer wall of described motor.
The present invention has the advantage that and provides the benefit that: include single chip control unit and with described Single-chip Controlling
The display screen that unit is electrically connected with, described single chip control unit has been simultaneously connected with current transformer, voltage transformer, Hall biography
Sensor, temperature sensor, voice alarm module, wireless transport module, thunder-lightning module, air switch, earth leakage protective device, automatically
Transformator, magnetic field detection coil and thermorelay, described autotransformer include electromagnetic voltage adjusting transformator and with described electricity
The energy-saving control loop module that magnetic adjustable transformer connects, reasonable in design, by detection voltage, electric current, temperature and position of bearings
Information, can effectively protect three-phase motor, and degree of accuracy is high, reliable, and stability is high；Motor can be demonstrated above display screen
The each line parameter run, it is simple to people analyze reason, and can be with the ginseng of distinct feed-back motor operation by wireless transport module
Number, controls convenient；And autotransformer can adjust the running voltage at motor two ends automatically, prevent under-voltage and overvoltage, carry
The high service life of motor.
Accompanying drawing explanation
Fig. 1 is the control system module map of the present invention；
Fig. 2 is the internal control system module map of autotransformer in the present invention.
In figure: 1, display screen 2, single chip control unit 3, current transformer
4, voltage transformer 5, Hall element 6, temperature sensor
7, voice alarm module 8, wireless transport module 9, thunder-lightning module
10, air switch 11, earth leakage protective device 12, autotransformer
13, magnetic field detection coil 14, thermorelay 15, electromagnetic voltage adjusting transformator
16, energy-saving control loop module
Detailed description of the invention
Below in conjunction with the accompanying drawings the specific embodiment of the present invention is elaborated.
As depicted in figs. 1 and 2, motor protector, include single chip control unit 2 and with single chip control unit 2
The display screen 1 being electrically connected with, the model of single chip control unit 2 is the STC89S52 of 32, and STC89S52 is a kind of fortune at a high speed
The chip calculated, single chip control unit 2 is communicatively coupled by RS232 serial communication mode with display screen 1, Single-chip Controlling
Unit 2 be simultaneously connected with current transformer 3, voltage transformer 4, Hall element 5, temperature sensor 6, voice alarm module 7,
Wireless transport module 8, thunder-lightning module 9, air switch 10, earth leakage protective device 11, autotransformer 12, magnetic field detection coil 13
With thermorelay 14, autotransformer 12 includes electromagnetic voltage adjusting transformator 15 and the joint being connected with electromagnetic voltage adjusting transformator 15
Can control return circuit module 16, Hall element 5 is arranged on the output shaft of motor, and Hall element 5 is used for detecting axle in motor
The position held, when, after bearing wear to a certain extent, active warning people changing bearing, current transformer 3 is connected on horse
On the main circuit reached, current transformer 3 is mainly used in detecting the current value of main circuit, when electric current is too high, and hot relay
Main circuit will be disconnected by device 14, and voltage transformer 4 is connected in parallel on the main circuit of described motor, and voltage transformer 4 is main to master
The voltage of circuit detects, and Real-time Feedback can adjust motor two ends automatically to single chip control unit 2, autotransformer 12
Running voltage, prevent under-voltage and overvoltage, improve the service life of motor, temperature sensor 6 be arranged on the stator of motor around
The inside of group, for detecting the temperature in motor, when temperature is too high, starts air switch and is disconnected by the main circuit of motor, anti-
Thunder and lightning module 9 is connected with the outer wall of motor, when meeting with thunder and lightning emergency situations, effectively thunder and lightning can be introduced underground, prevent voltage
Being burned out, earth leakage protective device 11 then can effectively prevent the security incident that motor electric leakage causes, and magnetic field detection coil 13 then may be used
With the situation in the magnetic field around detection motor, if external magnetic field is crossed high-strength, it is necessary to the magnetic field around motor magnetic field is entered
Row shielding.
By detection voltage, electric current, temperature and position of bearings information, can effectively protect three-phase motor, degree of accuracy is high, fortune
Row is reliable, and stability is high；Each line parameter of motor operation can be demonstrated, it is simple to people analyze reason above display screen 1, and
Can control convenient with the parameter of distinct feed-back motor operation by wireless transport module 8.
Above one embodiment of the present of invention is described in detail, but described content has been only the preferable enforcement of the present invention
Example, it is impossible to be considered the practical range for limiting the present invention.All impartial changes made according to the present patent application scope and improvement
Deng, within all should still belonging to the patent covering scope of the present invention.
Claims (7)
1. motor protector, it is characterised in that: include single chip control unit (2) and with described single chip control unit
(2) display screen (1) being electrically connected with, described single chip control unit (2) has been simultaneously connected with current transformer (3), mutual induction of voltage
Device (4), Hall element (5), temperature sensor (6), voice alarm module (7), wireless transport module (8), thunder-lightning module
(9), air switch (10), earth leakage protective device (11), autotransformer (12), magnetic field detection coil (13) and thermorelay
(14), described autotransformer (12) includes electromagnetic voltage adjusting transformator (15) and connects with described electromagnetic voltage adjusting transformator (15)
The energy-saving control loop module (16) connect.
Motor protector the most according to claim 1, it is characterised in that: the model of described single chip control unit (2) is
The STC89S52 of 32.
Motor protector the most according to claim 1, it is characterised in that: described single chip control unit (2) is aobvious with described
Display screen (1) is communicatively coupled by RS232 serial communication mode.
Motor protector the most according to claim 1, it is characterised in that: described Hall element (5) is arranged on motor
On output shaft, described Hall element (5) is for detecting the position of described motor inner bearing.
Motor protector the most according to claim 4, it is characterised in that: described current transformer (3) is connected on described horse
On the main circuit reached, described voltage transformer (4) is connected in parallel on the main circuit of described motor.
Motor protector the most according to claim 4, it is characterised in that: described temperature sensor (6) is arranged on described horse
The inside of the stator winding reached.
Motor protector the most according to claim 4, it is characterised in that: described thunder-lightning module (9) and described motor
Outer wall connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610716263.1A CN106253229A (en) | 2016-08-24 | 2016-08-24 | Motor protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610716263.1A CN106253229A (en) | 2016-08-24 | 2016-08-24 | Motor protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106253229A true CN106253229A (en) | 2016-12-21 |
Family
ID=57595279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610716263.1A Pending CN106253229A (en) | 2016-08-24 | 2016-08-24 | Motor protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106253229A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108521200A (en) * | 2018-04-27 | 2018-09-11 | 宁夏西北骏马电机制造股份有限公司 | Flame-proof mine intelligent three-phase asynchronous motor |
| CN114001959A (en) * | 2021-11-18 | 2022-02-01 | 武汉理工大学 | Marine diesel engine sliding bearing abrasion monitoring device based on contact potential method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995035532A1 (en) * | 1994-06-17 | 1995-12-28 | Energestor Kereskedelmi És Szolgáltató Kft. | Circuit arrangement for decreasing the energy consumption and for protecting of a variable loaded asynchronous motor |
| CN2678245Y (en) * | 2003-10-21 | 2005-02-09 | 哈尔滨北龙兴电力科技有限公司 | Electric-saving protector of magnetic amplifier type electric motor |
| CN201994911U (en) * | 2011-03-25 | 2011-09-28 | 黑龙江八一农垦大学 | Intelligent electricity-saving controller for motor |
| CN203243279U (en) * | 2013-01-02 | 2013-10-16 | 六安先锋电机有限公司 | Intelligent energy-saving motor with cooling circulation system |
| CN105610128A (en) * | 2014-11-25 | 2016-05-25 | 西安银河网电智能电气有限公司 | Intelligent motor control protector |
-
2016
- 2016-08-24 CN CN201610716263.1A patent/CN106253229A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995035532A1 (en) * | 1994-06-17 | 1995-12-28 | Energestor Kereskedelmi És Szolgáltató Kft. | Circuit arrangement for decreasing the energy consumption and for protecting of a variable loaded asynchronous motor |
| CN2678245Y (en) * | 2003-10-21 | 2005-02-09 | 哈尔滨北龙兴电力科技有限公司 | Electric-saving protector of magnetic amplifier type electric motor |
| CN201994911U (en) * | 2011-03-25 | 2011-09-28 | 黑龙江八一农垦大学 | Intelligent electricity-saving controller for motor |
| CN203243279U (en) * | 2013-01-02 | 2013-10-16 | 六安先锋电机有限公司 | Intelligent energy-saving motor with cooling circulation system |
| CN105610128A (en) * | 2014-11-25 | 2016-05-25 | 西安银河网电智能电气有限公司 | Intelligent motor control protector |
Non-Patent Citations (1)
| Title |
|---|
| 张一尘: "《高电压技术》", 31 August 2015, 中国电力出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108521200A (en) * | 2018-04-27 | 2018-09-11 | 宁夏西北骏马电机制造股份有限公司 | Flame-proof mine intelligent three-phase asynchronous motor |
| CN114001959A (en) * | 2021-11-18 | 2022-02-01 | 武汉理工大学 | Marine diesel engine sliding bearing abrasion monitoring device based on contact potential method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161221 |
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| RJ01 | Rejection of invention patent application after publication |