CN110277767A - A kind of intelligent electric machine protective device - Google Patents
A kind of intelligent electric machine protective device Download PDFInfo
- Publication number
- CN110277767A CN110277767A CN201910377599.3A CN201910377599A CN110277767A CN 110277767 A CN110277767 A CN 110277767A CN 201910377599 A CN201910377599 A CN 201910377599A CN 110277767 A CN110277767 A CN 110277767A
- Authority
- CN
- China
- Prior art keywords
- control panel
- screws
- fixed
- protective device
- 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
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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
- H02H7/0822—Integrated protection, motor control centres
-
- 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
- H02H7/0833—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 for electric motors with control arrangements
Abstract
The invention discloses a kind of intelligent electric machine protective devices; including pedestal, control panel and protective module; pedestal top left side is equipped with control panel; control panel surface crown is equipped with power switch; breaker is equipped with below power switch; right of circuit breaker is equipped with earth leakage protective device; A.C. contactor is equipped with below breaker; protective module is equipped on the right side of control panel; protective module inside left is equipped with control chip; it controls and is equipped with pressure-failure protector on the right side of chip, control beneath chips are equipped with current transformer, and protective module has side to be equipped with motor；This intelligent electric machine protective device; control is set in protective module in chip; realize the intelligentized control method of motor circuit protection; in setting on control chip there are many circuit protection module, the more perfect safety of circuit protection effectively realizes the intelligent motor protection of a variety of different abnormal circuits; circuit detection accuracy is high; implementing circuit protects error small, reliable performance, and the service life is longer, power consumption is lower.
Description
Technical field
The present invention relates to electric motor protecting technical field, specially a kind of intelligent electric machine protective device.
Background technique
The appearance of motor greatly facilitates industrial expansion, nowadays society no matter in life or produce in for motor
Using very extensive, the existing protection to motor uses, and electrothermal relay is realized pair by being serially connected in main motor control loop
The overcurrent protection of motor, but its defencive function is less, and the failures such as long-term overload, frequent starting cannot play a protective role.
Further, since existing electrothermal relay is heating type, power consumption is big, and often because the circuits such as high current overload or short trouble occur
It can not be used again after situation, service life is short.
Summary of the invention
The purpose of the present invention is to provide a kind of intelligent electric machine protective devices, have protective module, built-in control core to electricity
The advantages of machine carries out overload protection, under-voltage protection, a variety of protections such as overvoltage protection, intelligence power-off, solve it is in the prior art
Problem.
To achieve the above object, the invention provides the following technical scheme: a kind of intelligent electric machine protective device, including pedestal,
Control panel, power switch, breaker, earth leakage protective device, A.C. contactor, protective module, control chip, pressure-failure protector, electricity
Current transformer, voltage transformer, overvoltage protector and motor, the pedestal top left side are equipped with control panel, and the control panel is logical
It is fixed on the base to cross screw, the control panel surface crown is equipped with power switch, and the power switch is fixed by screws in
On control panel, breaker is equipped with below the power switch, the breaker is fixed by screws on control panel, the open circuit
Earth leakage protective device is equipped on the right side of device, the earth leakage protective device is fixed by screws on control panel, is equipped with below the breaker
A.C. contactor, the A.C. contactor are fixed by screws on control panel, and protective module, institute are equipped on the right side of the control panel
It states protective module to be fixed by screws on pedestal, the protective module inside left is equipped with control chip, the control chip
It is fixed by screws in protective module, pressure-failure protector is equipped on the right side of the control chip, the pressure-failure protector passes through spiral shell
Nail is fixed in protective module, and the control beneath chips are equipped with current transformer, and the current transformer is fixed by screw
In protective module, voltage transformer is equipped with below the current transformer, the voltage transformer is fixed by screws in guarantor
It protects in module, overvoltage protector is equipped on the right side of the voltage transformer, the overvoltage protector is fixed by screws in protection mould
In block, the protective module has side to be equipped with motor, and the motor is fixed by screws on pedestal.
Preferably, silica gel is used to do water-proofing treatment, the control panel and protective module in the control panel and protective module
Surface is all made of rubber and does insulation processing.
Preferably, the power switch is gone here and there with breaker, earth leakage protective device and A.C. contactor respectively by cable
Connection connection, the A.C. contactor are connect with motor by cable, and the earth leakage protective device is connect by cable with protective module.
Preferably, the voltage transformer is connected in parallel by signal wire with pressure-failure protector and overvoltage protector, institute
Control chip is stated to be all made of signal wire with current transformer, pressure-failure protector and overvoltage protector and connect.
Preferably, the breaker model are as follows: HYT400, the earth leakage protective device model: 3RV1011-0HA15, it is described
A.C. contactor model are as follows: CJX1-300, the control chip model are as follows: LDR6013, the pressure-failure protector model are as follows:
JDQG, the current transformer model are as follows: 2DRL, the voltage transformer model are as follows: LT308-S7, the overvoltage protection type
Number are as follows: JVR (800-1), the motor model are as follows: HD-5-85.
Compared with prior art, beneficial effects of the present invention are as follows: this intelligent electric machine protective device, set control in protective module
System realizes the intelligentized control method of motor circuit protection in chip, in there are many circuit protection module, circuits for setting on control chip
More perfect safety is protected, effectively realizes the intelligent motor protection of a variety of different abnormal circuits, circuit detection accuracy is high, implementing circuit
Protect error small, reliable performance, and the service life is longer, power consumption is lower.
Detailed description of the invention
Fig. 1 is a kind of present invention: intelligent electric machine protective device overall structure diagram；
Fig. 2 is a kind of present invention: intelligent electric machine protective device control panel schematic diagram；
Fig. 3 is a kind of present invention: intelligent electric machine protective device protective module schematic diagram.
In figure mark explanation: 1 pedestal, 2 control panels, 3 power switches, 4 breakers, 5 earth leakage protective devices, 6 A.C. contactors,
7 protective modules, 8 control chips, 9 pressure-failure protectors, 10 current transformers, 11 voltage transformers, 12 overvoltage protectors, 13 electricity
Machine.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments, is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", "top",
The orientation or positional relationship of the instructions such as "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore be not considered as limiting the invention.
Please refer to Fig. 1-3, a kind of intelligent electric machine protective device, including pedestal 1, control panel 2, power switch 3, breaker 4,
Earth leakage protective device 5, A.C. contactor 6, protective module 7, control chip 8, pressure-failure protector 9, current transformer 10, mutual induction of voltage
Device 11, overvoltage protector 12 and motor 13,1 top left side of pedestal are equipped with control panel 2, and control panel 2 is fixed by screws in pedestal 1
On, 2 surface crown of control panel is equipped with power switch 3, and power switch 3 is fixed by screws on control panel 2, under power switch 3
Side is equipped with breaker 4,4 model of breaker are as follows: HYT400, breaker 4 are fixed by screws on control panel 2,4 right side of breaker
Equipped with earth leakage protective device 5,5 model of earth leakage protective device: 3RV1011-0HA15, earth leakage protective device 5 are fixed by screws in control panel
On 2, A.C. contactor 6,6 model of A.C. contactor are as follows: CJX1-300, A.C. contactor 6 pass through screw are equipped with below breaker 4
It is fixed on control panel 2, protective module 7 is equipped on the right side of control panel 2, protective module 7 is fixed by screws on pedestal 1, is protected
7 inside left of module is equipped with control chip 8, controls 8 model of chip are as follows: LDR6013, control chip 8 are fixed by screws in guarantor
It protects in module 7, controls and be equipped with pressure-failure protector 9,9 model of pressure-failure protector are as follows: JDQG, pressure-failure protector 9 pass through on the right side of chip 8
Screw is fixed in protective module 7, is controlled and is equipped with current transformer 10,10 model of current transformer below chip 8 are as follows: 2DRL,
Current transformer 10 is fixed by screws in protective module 7, voltage transformer 11 is equipped with below current transformer 10, voltage is mutual
11 model of sensor are as follows: LT308-S7, voltage transformer 11 are fixed by screws in protective module 7,11 right side of voltage transformer
Equipped with overvoltage protector 12,12 model of overvoltage protector are as follows: JVR (800-1), overvoltage protector 12 are fixed by screws in protection
In module 7, protective module 7 has side to be equipped with motor 13,13 model of motor are as follows: HD-5-85, motor 13 are fixed by screws in pedestal
On 1, water-proofing treatment is done using silica gel in control panel 2 and protective module 7, control panel 2 is all made of rubber with 7 surface of protective module and does
Insulation processing, power switch 3 are connected in series with breaker 4, earth leakage protective device and A.C. contactor 6 respectively by cable,
A.C. contactor 6 is connect with motor 13 by cable, and earth leakage protective device 5 is connect by cable with protective module 7, voltage transformer
11 are connected in parallel by signal wire with pressure-failure protector 9 and overvoltage protector 12, and control chip 8 and current transformer 10 are owed
Pressure protector 9 is all made of signal wire with overvoltage protector 12 and connects.
Working principle: a kind of intelligent electric machine protective device of the present invention is connect by power supply line with power switch 3, then according to
The secondary each module of 3, breaker 4,5 present apparatus of earth leakage protective device that turns on the power switch is powered, and A.C. contactor 6 controls electricity by cable
Machine 13 starts, and when abnormal leak electricity occurs in motor 13, the tripping of earth leakage protective device 5 is cut off the power, when current transformer 10 detects electricity
When the overload of machine 13 or too small electric current, signal is fed back to control chip 8 by signal by current transformer 10, and control chip 8 passes through
The movement of 6 contact of signal line traffic control A.C. contactor, A.C. contactor 6 control motor 13 by cable and stop working, ac contactor
Device 6, which by normally-closed contact disconnects cable and feeds back to the tripping of breaker 4, cuts off the power and protects to circuit, works as trouble shooting
Breaker 4 is resetted manually, voltage transformer 11 will test voltage value and pass to 9 He of pressure-failure protector by signal wire
Overvoltage protector 12 passes information to control core by signal wire when the progress under-voltage protection of brownout device pressure-failure protector 9
Piece 8, control chip 8 are acted by 6 contact of signal line traffic control A.C. contactor, and A.C. contactor 6 controls motor 13 by cable
Stop working, A.C. contactor 6 by normally-closed contact disconnect cable feed back to breaker 4 tripping cut off the power to circuit into
Row protection, when overvoltage protector 12 detects overtension, progress its signal of overvoltage protection transmitting is similar with under-voltage protection, when
Voltage recovery manually boots.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention, for this field skill
For art personnel, it is clear that invention is not limited to the details of the above exemplary embodiments, and without departing substantially from spirit of the invention or
In the case where essential characteristic, the present invention can be realized in other specific forms；Therefore, in all respects, should all incite somebody to action
Embodiment regards exemplary as, and is non-limiting, the scope of the present invention by appended claims rather than on state
Bright restriction, it is intended that including all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention
Interior, any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (5)
1. a kind of intelligent electric machine protective device, it is characterised in that: including pedestal (1), control panel (2), power switch (3), open circuit
Device (4), earth leakage protective device (5), A.C. contactor (6), protective module (7), control chip (8), pressure-failure protector (9), electric current
Mutual inductor (10), voltage transformer (11), overvoltage protector (12) and motor (13), pedestal (1) top left side are equipped with control
Making sheet (2), the control panel (2) are fixed by screws on pedestal (1), and control panel (2) surface crown is opened equipped with power supply
It closes (3), the power switch (3) is fixed by screws on control panel (2), and breaker is equipped with below the power switch (3)
(4), the breaker (4) is fixed by screws on control panel (2), and earth leakage protective device is equipped on the right side of the breaker (4)
(5), the earth leakage protective device (5) is fixed by screws on control panel (2), and ac contactor is equipped with below the breaker (4)
Device (6), the A.C. contactor (6) are fixed by screws on control panel (2), and protection mould is equipped on the right side of the control panel (2)
Block (7), the protective module (7) are fixed by screws on pedestal (1), and protective module (7) inside left is equipped with control
Chip (8), the control chip (8) are fixed by screws in protective module (7), are equipped with and owe on the right side of the control chip (8)
It presses protector (9), the pressure-failure protector (9) is fixed by screws in protective module (7), below the control chip (8)
Equipped with current transformer (10), the current transformer (10) is fixed by screws in protective module (7), the Current Mutual Inductance
Voltage transformer (11) are equipped with below device (10), the voltage transformer (11) is fixed by screws in protective module (7), institute
It states and is equipped with overvoltage protector (12) on the right side of voltage transformer (11), the overvoltage protector (12) is fixed by screws in protection mould
In block (7), the protective module (7) has side to be equipped with motor (13), and the motor (13) is fixed by screws on pedestal (1).
2. a kind of intelligent electric machine protective device according to claim 1, it is characterised in that: the control panel (2) and protection
Water-proofing treatment is done using silica gel in module (7), the control panel (2) and protective module (7) surface are all made of rubber and do insulation position
Reason.
3. a kind of intelligent electric machine protective device according to claim 1, it is characterised in that: the power switch (3) passes through
Cable is connected in series with breaker (4), earth leakage protective device and A.C. contactor (6) respectively, the A.C. contactor (6) with
Motor (13) is connected by cable, and the earth leakage protective device (5) is connect by cable with protective module (7).
4. a kind of intelligent electric machine protective device according to claim 1, it is characterised in that: the voltage transformer (11) with
Pressure-failure protector (9) and overvoltage protector (12) are connected in parallel by signal wire, the control chip (8) and current transformer
(10), pressure-failure protector (9) is all made of signal wire with overvoltage protector (12) and connects.
5. a kind of intelligent electric machine protective device according to claim 1, it is characterised in that: breaker (4) model are as follows:
HYT400, earth leakage protective device (5) model: 3RV1011-0HA15, A.C. contactor (6) model are as follows: CJX1-300,
Control chip (8) model are as follows: LDR6013, pressure-failure protector (9) model are as follows: JDQG, the current transformer (10)
Model are as follows: 2DRL, voltage transformer (11) model are as follows: LT308-S7, overvoltage protector (12) model are as follows: JVR
(800-1), motor (13) model are as follows: HD-5-85.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910377599.3A CN110277767A (en) | 2019-05-07 | 2019-05-07 | A kind of intelligent electric machine protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910377599.3A CN110277767A (en) | 2019-05-07 | 2019-05-07 | A kind of intelligent electric machine protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110277767A true CN110277767A (en) | 2019-09-24 |
Family
ID=67959713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910377599.3A Pending CN110277767A (en) | 2019-05-07 | 2019-05-07 | A kind of intelligent electric machine protective device |
Country Status (1)
| Country | Link |
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| CN (1) | CN110277767A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202663087U (en) * | 2012-06-15 | 2013-01-09 | 深圳普鲁士特空压系统有限公司 | Smart protector for motor |
| CN205356041U (en) * | 2015-12-16 | 2016-06-29 | 广西绿地球能源科技有限公司 | Motor with damper |
| CN107508259A (en) * | 2017-08-29 | 2017-12-22 | 安徽三和电力技术有限公司 | Motor intelligent monitoring system |
| CN207489752U (en) * | 2017-12-08 | 2018-06-12 | 延长油田股份有限公司定边采油厂 | Threephase asynchronous coil temperature control protective device |
| CN109638781A (en) * | 2018-11-07 | 2019-04-16 | 陕西南梁矿业有限公司 | A kind of water-cooled motor means for protecting power device when water-break and method |
-
2019
- 2019-05-07 CN CN201910377599.3A patent/CN110277767A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202663087U (en) * | 2012-06-15 | 2013-01-09 | 深圳普鲁士特空压系统有限公司 | Smart protector for motor |
| CN205356041U (en) * | 2015-12-16 | 2016-06-29 | 广西绿地球能源科技有限公司 | Motor with damper |
| CN107508259A (en) * | 2017-08-29 | 2017-12-22 | 安徽三和电力技术有限公司 | Motor intelligent monitoring system |
| CN207489752U (en) * | 2017-12-08 | 2018-06-12 | 延长油田股份有限公司定边采油厂 | Threephase asynchronous coil temperature control protective device |
| CN109638781A (en) * | 2018-11-07 | 2019-04-16 | 陕西南梁矿业有限公司 | A kind of water-cooled motor means for protecting power device when water-break and method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190924 |