CN209072376U - Motor starting system - Google Patents
Motor starting system Download PDFInfo
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- CN209072376U CN209072376U CN201821797738.5U CN201821797738U CN209072376U CN 209072376 U CN209072376 U CN 209072376U CN 201821797738 U CN201821797738 U CN 201821797738U CN 209072376 U CN209072376 U CN 209072376U
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- regulating module
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Abstract
The utility model relates to clothing machinery and equipments; a kind of motor starting system is disclosed, including directly initiates contactor, voltage regulating module, the first switching switch, local control equipment, remote operation apparatus, the second switching switch, indicating module, motor protecting device.It can be switched over to contactor is directly initiated with voltage regulating module by the first switching switch; therefore when needing to start motor; voltage regulating module can be first turned on; voltage is provided to motor from voltage regulating module with preset function relationship; motor is smoothly started; and after motor starts completely; voltage regulating module triggering directly initiates contactor; it is worked again by directly initiating contactor; guarantee that motor being capable of even running; and motor is protected by motor protecting device, avoid motor from being damaged.Thus on the basis of guaranteeing motor even running, moreover it is possible to effectively be protected to motor and power grid, and then improve the service life of motor.
Description
Technical field
The utility model relates to low-voltage complete switch equipment, in particular to a kind of motor starting system.
Background technique
Low-voltage complete switch equipment is widely used in industrial circle.Currently, motor on startup, usually directly opens
It is dynamic, and motor is when directly initiating, since electric current moment increases, so that power grid locating for motor and motor can be by
To influence, the service life of motor is significantly reduced.
Utility model content
The purpose of this utility model is to provide a kind of motor starting system, make it possible to effectively to motor and electricity
Net is protected, and the service life of motor is improved.
In order to solve the above technical problems, the embodiments of the present invention provides a kind of motor starting system, comprising:
Contactor, external power supply are directly initiated, and is electrically connected respectively with the power supply, motor, is used for the electricity
Motivation is powered；
Voltage regulating module is electrically connected with the power supply, the motor respectively, for preset function relationship to the electricity
Motivation input voltage；
First switching switch directly initiates contactor, voltage regulating module electric connection with described respectively, for described
Contactor is directly initiated to switch over the voltage regulating module；
Local control equipment directly initiates contactor, voltage regulating module electric connection with described respectively, and at this
Ground starts or stops the motor；
Remote operation apparatus directly initiates contactor, voltage regulating module electric connection with described respectively, and for remote
Side starts or stops the motor；
Second switching switch is electrically connected, for institute respectively with the local control equipment, the remote operation apparatus
Local control equipment is stated to switch over the remote operation apparatus；
Indicating module is used to indicate the working condition of presently described motor；
Motor protecting device directly initiates contactor, motor electric connection with described respectively, for described
Motor is protected；
Wherein, the voltage regulating module is also used to after the motor starts completely, and contactor is directly initiated described in triggering.
The utility model embodiment in terms of existing technologies, can be contacted by the first switching switch to directly initiating
Device is switched over voltage regulating module, thus when needing to start motor, it is first turned on voltage regulating module, by voltage regulating module with default
Functional relation provides voltage to motor, motor is smoothly started, and after motor starts completely, voltage regulating module
Triggering directly initiates contactor, then is worked by directly initiating contactor, guarantee motor can even running, and pass through electricity
Motivation protective device protects motor, and motor is avoided to be damaged.Also, it can also be to local by the second switching switch
Operation equipment is switched over remote operation apparatus, thus operator can be controlled according to the selection of actual use demand local or
Person controls in the distance.In addition, can explicitly indicate that the working condition that motor is presently in by indicating module.Thus exist
On the basis of guarantee motor even running, moreover it is possible to effectively be protected to motor and power grid, and then improve motor
Service life.
In addition, the indicating module includes:
Run indicator is electrically connected, for being touched in the contactor that directly initiates with the contactor that directly initiates
It is lighted after hair；
Stop indicator light, contactor, voltage regulating module electric connection is directly initiated with described respectively, for described straight
Connect starting contactor, the voltage regulating module lights after being closed.
In addition, the motor protecting device is also used to detect the electric motor operation state；The motor start-up system
System further include: malfunction indicator lamp directly initiates contactor, motor protecting device electric connection with described respectively；Wherein,
The motor protecting device is also used to open the indicating fault when detecting that the electric motor operation state breaks down
Lamp.So as to make staff find the failure of motor in time.
In addition, the motor protecting device is that low-tension motor protects microcomputerized controller.
In addition, the voltage regulating module is thyristor, for carrying out AC voltage adjusting.
In addition, the voltage regulating module further include: power conditioning module, for adjusting the maximum power of the thyristor.
Detailed description of the invention
Fig. 1 is motor starting system module diagram in the utility model embodiment；
Fig. 2 is the main loop circuit schematic diagram of motor starting system in the utility model mode；
Fig. 3 is the control loop circuit diagram of motor starting system in the utility model embodiment；
Fig. 4 is motor starting system wiring schematic diagram in the utility model embodiment；
Fig. 5 is soft activator wiring schematic diagram in the utility model embodiment；
Fig. 6 is motor starting system indicator light wiring schematic diagram in the utility model embodiment.
Specific embodiment
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Each embodiment of type is explained in detail.However, it will be understood by those skilled in the art that each in the utility model
In embodiment, in order to make the reader understand this application better, many technical details are proposed.But even if without these skills
The required guarantor of each claim of the application also may be implemented in art details and various changes and modifications based on the following respective embodiments
The technical solution of shield.
The embodiments of the present invention is related to a kind of motor starting system.As shown in Figures 1 to 6, which opens
Dynamic system is by directly initiating contactor KM, voltage regulating module, the first switching switch SA, local control equipment, remote operation apparatus
DCS, the second switching switch 1SA, indicating module, motor M protective device composition.Wherein, contactor KM and pressure regulation are directly initiated
The equal external power supply of module directly initiates contactor KM and is electrically connected respectively with power supply, motor M, and for directly to motor M
It is powered；Similarly, voltage regulating module is electrically connected with power supply, motor M respectively, and for preset functional relation to electronic
Machine M input voltage realizes the gentle starting of motor M.First switching switch SA respectively with directly initiate contactor KM, pressure regulation mould
Block is electrically connected, and for directly initiating contactor KM and voltage regulating module switches over, and the first switching switch SA is to interlock
Switch.Also, voltage regulating module, which is also used to trigger after motor M is completely booted, directly initiates contactor KM.Local control is set
Standby and remote operation apparatus DCS respectively with directly initiate contactor KM, voltage regulating module is electrically connected, wherein local control is set
Standby includes local boot switch 1SB and local shutdown switch 2SB, also, in actual use, local control equipment may be configured as
Button, specifically, local boot switch 1SB are used to be used in local boot motor M, local shutdown switch 2SB in local
Close motor M.And remote operation apparatus DCS starts or stops motor M, the second switch 1SA points of switching for realizing long-range
It is not electrically connected, and is used for local control equipment in remote operation apparatus in locally control equipment and remote operation apparatus DCS
DCS is switched over, and meets a variety of different use demands of staff.Indicating module is mainly used for indicating that motor M is current
Working condition, in addition, motor M protective device respectively with directly initiate contactor KM and motor M and be electrically connected, for electricity
Motivation M is protected.
It through the above it is not difficult to find that can be to directly initiating contactor KM and voltage regulating module by the first switching switch SA
It switches over, therefore when needing to start motor M, voltage regulating module can be first turned on, by voltage regulating module with preset function relationship
Voltage is provided to motor M, motor M is smoothly started, and after motor M starts completely, voltage regulating module triggering
Directly initiate contactor KM, then worked by directly initiating contactor KM, guarantee motor M can even running, and pass through
Motor M protective device protects motor M, and motor M is avoided to be damaged.Also, also by the second switching switch 1SA
Local operation equipment and remote operation apparatus DCS can be switched over, thus operator can be according to actual use demand selection
It is locally controlling or is being controlled in the distance.In addition, can explicitly indicate that the work that motor M is presently in by indicating module
Make state.Thus on the basis of guaranteeing motor M even running, moreover it is possible to effectively motor M and power grid are protected, into
And improve the service life of motor M.
Specifically, in the present embodiment, as shown in figure 3, indicating module includes: run indicator HR and stops indicating
Lamp HG, wherein run indicator HR is electrically connected with contactor KM is directly initiated, and is activated when directly initiating contactor KM
Afterwards, light run indicator HR, and stop indicator light HG respectively with directly initiate contactor KM, voltage regulating module be electrically connected, and
When directly initiate contactor KM, voltage regulating module is closed after, light stop indicator light HG.Can thus staff be made clearly to know
Road motor M current working status.
In addition, as shown in figure 3, motor M protective device is that low-tension motor protects microcomputerized controller MCU, and motor M
Protective device is also used to detect the working condition of motor M, and in order to which staff can have found motor M failure in time, it should
Motor starting system further include: respectively with directly initiate contactor KM, low-tension motor protection microcomputerized controller MCU electrically connect
The malfunction indicator lamp connect.Wherein, when low-tension motor protection microcomputerized controller MCU detects motor M failure, failure is lighted
Indicator light, and corresponding fault type is shown by low-tension motor protection microcomputerized controller MCU.Also, motor M protective device
It further include current-voltage transformer TD, specifically, mutual inductor is a kind of special transformer, can be by high voltage, high current
Become low-voltage, low current, guarantees the person and equipment safety.
It should be noted that in the present embodiment, as shown in Figure 2 and Figure 3, voltage regulating module is soft activator SST, specifically
Say, the soft activator SST being serially connected between power supply and motor M, mainly by controlling the angle of flow of its internal thyristor,
It is gradually increasing motor M input voltage with preset function relationship from zero, until proceed-to-send, assigns motor M full voltage,
In Soft Start-up Process, motor M starting torque is gradually increased, and revolving speed also gradually increases.Specifically, soft activator SST is one
Kind integrates the novel motor M control device of motor M soft start, soft stop, light-load energy saving and multi-protective function.It is soft
Starter SST, as pressure regulator, is accessed between power supply and motor M stator using three-phase anti-parallel thyristor.Such as three-phase
Full-controlled bridge rectification circuit.When starting motor M using soft activator SST, the output voltage of thyristor is gradually increased, motor
M is ramped up, and until thyristor is connected entirely, motor M works in the mechanical property of voltage rating, realizes smooth starting, drop
Low starting current avoids starting overcurrent tripping.When motor M reaches rated revolution, start-up course terminates, soft activator SST
The thyristor of task is completed from employing bypass contactor and replacing, runs well for motor M and voltage rating is provided, to reduce crystalline substance
The thermal losses of brake tube extends the service life of soft activator SST, improves its working efficiency, and power grid is made to avoid harmonic pollution.
Wherein, specifically, as shown in Figure 2 and Figure 3, control loop total score be two-way, electric power incoming line L11 circuit breaker Q F with
Fuse overcurrent protection FU2 series connection is opened after the series connection of remote operation apparatus DCS shutdown switch with local shutdown switch 2SB and local
Dynamic switch 1SB series connection, then connect the second switching switch 1SA, and remote operation apparatus DCS jettron and local jettron
1SB is in parallel.Then by second switching switch 1SA series connection first switching switch SA, first switch switch SA respectively with soft start branch
Road directly initiates branch series connection, and soft start branch and directly initiates branch circuit parallel connection, when the first switching switch SA switches to soft open
When dynamic branch, intermediate relay KA1 coil obtains electric, and soft activator SST is opened, and soft start branch and directly initiates branch interlocking,
Normally closed switch KM disconnection is directly initiated, until directly initiating contactor KM after motor M starts completely and obtaining electricity operation, low-pressure electric
Machine protects microcomputerized controller MCU operation, protects to motor M, directly initiates run indicator KA2 and directly initiates contactor
KM is in parallel.And electric power incoming line L1 serial fuse FU1, soft activator SST failure opened point and motor protection microcomputerized controller
After MCU failure opened point is in parallel, connect with fuse FU1, failure intermediate relay KA3 coil is connected with more than, among failure
Relay KA3 normally opened contact is connected with fuse FU1, and malfunction indicator lamp HY connects with failure intermediate relay KA3 normally opened contact.
Further, in order to enable soft activator can start a variety of motor M, voltage regulating module may also include with
The power conditioning module that soft activator SST is electrically connected, for adjusting the maximum operation power of thyristor, wherein power regulation
Silicon-controlled device can be used in module, when silicon-controlled device conducting when voltage reaches particular value, it is thus possible to realize to soft start
The maximum power of device is adjusted, and further facilitates the use of soft activator.
Specifically, soft start is to realize motor M and mechanical load by technological means such as decompression, compensation or frequency conversions
Smooth starting, reduce starting current to the influence degree of power grid, so that power grid and mechanical system is protected.So that motor M
Output torque meet requirement of the mechanical system to starting torque, guarantee it is smooth accelerate, smooth transition, the punching of avoiding damage to property torque
Hit, moreover it is possible to so that starting current is met the requirement of motor M ability to bear, avoid motor M start fever cause insulation breakdown or
It burns, moreover it is possible to which starting current is made to meet the requirement of grid power quality relevant criterion.In addition, by soft activator to electronic
Machine M is started, and can be reduced motor M and be started requirement to electric system, moreover it is possible to allow the selection more section of motor M
It learns, it is more economical, more reasonable.
In addition, soft start and conventional pressure relief start mode are a difference in that: firstly, non-impact current when soft start, soft
Starter, by being gradually increased turn on thyristors angle, makes motor M starting current from zero linear rising when starting motor M
To setting value.Secondly, soft start is constant flow starting.Soft activator can introduce closed-loop current control, start motor M
Constant current is kept in journey, it is ensured that motor M smooth start.Finally, soft activator is according to loading condition and electric grid relay protection characteristic
Selection, can freely stepless changing to optimal starting current.It thus can preferably protect motor M.
Specifically, when staff needs to open motor M, the first switching switch SA is passed through by staff first
Selection carries out soft start to motor M by soft activator, or selection is started by directly initiating contactor KM, so
Afterwards, controlled by the second switching switch 1SA selection by locally controlling equipment, or select by remote operation apparatus DCS into
The long-range control of row.Motor M may make gently to start by soft activator, until after motor M starts completely, soft activator touching
Hair directly initiates contactor KM, and motor M carries out even running, and after directly initiating contactor KM and being triggered, lights operation
Indicator light HR, in addition, lighting malfunction indicator lamp after motor M breaks down during even running.When motor M work
After the completion of work, soft activator is closed with contactor KM is directly initiated, and is lighted and is stopped indicator light HG, informs that staff is electronic
Machine M operation has stopped.
It will be understood by those skilled in the art that the respective embodiments described above are to realize the specific implementation of the utility model
Example, and in practical applications, can to it, various changes can be made in the form and details, without departing from the spirit of the utility model
And range.
Claims (6)
1. a kind of motor starting system characterized by comprising
Contactor, external power supply are directly initiated, and is electrically connected respectively with the power supply, motor, is used for the motor
It is powered；
Voltage regulating module is electrically connected with the power supply, the motor respectively, for preset function relationship to the motor
Input voltage；
First switching switch directly initiates contactor, voltage regulating module electric connection with described respectively, for described direct
Starting contactor is switched over the voltage regulating module；
Local control equipment directly initiates contactor, voltage regulating module electric connection with described respectively, and for opening locally
Move or stop the motor；
Remote operation apparatus directly initiates contactor, voltage regulating module electric connection with described respectively, and for opening in the distance
Move or stop the motor；
Second switching switch is electrically connected, for described respectively with the local control equipment, the remote operation apparatus
Control equipment in ground is switched over the remote operation apparatus；
Indicating module is used to indicate the working condition of presently described motor；
Motor protecting device directly initiates contactor, motor electric connection with described respectively, for described electronic
Machine is protected；
Wherein, the voltage regulating module is also used to after the motor starts completely, and contactor is directly initiated described in triggering.
2. motor starting system according to claim 1, which is characterized in that the indicating module includes:
Run indicator is electrically connected with the contactor that directly initiates, for directly initiating after contactor is triggered described
It lights；
Stop indicator light, contactor, voltage regulating module electric connection is directly initiated with described respectively, for directly opening described
Dynamic contactor, the voltage regulating module light after being closed.
3. motor starting system according to claim 2, which is characterized in that the motor protecting device is also used to examine
Survey the electric motor operation state；
The motor starting system further include: malfunction indicator lamp directly initiates contactor, motor guarantor with described respectively
Protection unit is electrically connected；
Wherein, the motor protecting device is also used to open institute when detecting that the electric motor operation state breaks down
State malfunction indicator lamp.
4. motor starting system according to claim 3, which is characterized in that the motor protecting device is low tension
Motivation protects microcomputerized controller.
5. motor starting system according to claim 1, which is characterized in that the voltage regulating module is thyristor, is used for
Carry out AC voltage adjusting.
6. motor starting system according to claim 5, which is characterized in that the voltage regulating module further include: power tune
Module is saved, for adjusting the maximum power of the thyristor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821797738.5U CN209072376U (en) | 2018-11-02 | 2018-11-02 | Motor starting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821797738.5U CN209072376U (en) | 2018-11-02 | 2018-11-02 | Motor starting system |
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| Publication Number | Publication Date |
|---|---|
| CN209072376U true CN209072376U (en) | 2019-07-05 |
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ID=67097342
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821797738.5U Active CN209072376U (en) | 2018-11-02 | 2018-11-02 | Motor starting system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111282336A (en) * | 2020-02-26 | 2020-06-16 | 中广核研究院有限公司 | Control method and system for drum-shaped filter screen in circulating water filtering system of nuclear power station |
| CN112527028A (en) * | 2020-11-28 | 2021-03-19 | 安徽金禾实业股份有限公司 | Regulating and controlling device for electric heater of synthesis tower |
-
2018
- 2018-11-02 CN CN201821797738.5U patent/CN209072376U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111282336A (en) * | 2020-02-26 | 2020-06-16 | 中广核研究院有限公司 | Control method and system for drum-shaped filter screen in circulating water filtering system of nuclear power station |
| CN111282336B (en) * | 2020-02-26 | 2022-01-11 | 中广核研究院有限公司 | Control method and system for drum-shaped filter screen in circulating water filtering system of nuclear power station |
| CN112527028A (en) * | 2020-11-28 | 2021-03-19 | 安徽金禾实业股份有限公司 | Regulating and controlling device for electric heater of synthesis tower |
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