CN205451625U - Motor drag a soft start control cabinet - Google Patents
Motor drag a soft start control cabinet Download PDFInfo
- Publication number
- CN205451625U CN205451625U CN201520773001.XU CN201520773001U CN205451625U CN 205451625 U CN205451625 U CN 205451625U CN 201520773001 U CN201520773001 U CN 201520773001U CN 205451625 U CN205451625 U CN 205451625U
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- Prior art keywords
- cabinet
- motor
- soft start
- switch board
- control system
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Abstract
The utility model discloses a motor drag a soft start control cabinet. Including the cabinet body, its characterized in that: the cabinet body is single face cabinet door -type structure, installs volt ammeter, power supply emergency stop button on the cabinet door, opens and stop control switch, change over switch and signal indication lamp, and the internal portion of cabinet has set firmly circuit breaker, ac contactor, relay, current transformer, transformer, binding post, trough, soft starter, buzzer, fan and motor, and cabinet body rear downside is equipped with the power cord, and the one end and the internal volt ammeter 0 of portion of cabinet of power cord are connected, and volt ammeter 1 is connected to the other end of power cord. The utility model discloses the soft start cabinet, simple structure, it is small, area is few, simple to operate, the equipment operation is stable, and increase of service life has realized direct current motor's level and smooth soft start operation, is applicable to the speed governing of various motors, and fields such as excitation system's regulation and control are ideal devices that all kinds of universities and colleges carry out electrician, electric, motor teaching training and real standard examination.
Description
Technical field
This utility model relates to motor actual training device field, particularly relates to a kind of motor drag soft start switch board.
Background technology
Soft initiator (softstarter) is a kind of novel motor control assembly integrating electric machine soft starting, soft stop, multi-protective function, and its main composition is the three-phase anti-parallel thyristor and electronic control circuit thereof being serially connected with between power supply and controlled motor.Soft starter for motor switch board at present, it is widely used in pump machine and the blower fan in large-scale water stop, sewage treatment plant, power plant, oil pressurizing point, paper mill etc., the equipment such as the compressor of chemical industry, mining etc., ball mill, conveyer belt, but the device being applied in practice teaching by soft start switch board is little.For the problem that presently, there are, with reference to " electrician trade " standard, " electrical wiring " specification, research and develop a middle professorship, universities and colleges of undergraduate course etc. carry out electrician, electrically, the actual training device examined of the teaching of motor aspect, skills training, real training, and can realize direct current generator smooth soft start run, the experiential functions such as excitation system regulation and control, are extremely important and far-reaching.
Utility model content
This utility model provides a kind of motor drag soft start switch board, simple in construction, and small volume, floor space are few; easy for installation; and there is multi-protective function, safety is high, stable equipment operation; increase the service life; the smooth soft start achieving direct current generator runs, and has good soft-start feature, it is adaptable to the speed governing of various motors; the fields such as the regulation and control of excitation system, are that all kinds of universities and colleges carry out electrician, electric, machine teaching training and the ideal device of real training examination.
It is an object of the invention to be achieved through the following technical solutions:
A kind of motor drag soft start switch board, including a cabinet, it is characterized in that: described cabinet is one side cabinet door type structure, on described cabinet door, volometer is installed, power supply scram button, on off control switchs, permutator and signal lamp, described cabinet is fixedly provided with chopper, A.C. contactor, relay, current transformer, transformator, binding post, trough, soft initiator, buzzer, fan and motor, it is provided with power line on the downside of described cabinet rear, one end of described power line is connected with cabinet internal control circuit, the other end of described power line connects external power source.
It is additionally provided with PLC control system inside described cabinet, the input of described PLC control system connects power supply scram button, on off control switch, permutator and relay, and the outfan of described PLC control system connects A.C. contactor, relay and signal lamp.
Being additionally provided with Ethernet interface in described PLC control system, the input of described Ethernet interface connects remote computer.
Four edges of described bottom of cabinet bulk are provided with four movable pulleys that can brake.
A length of the 1700 of described cabinet～1900mm, the width of cabinet is 700～900mm, and the height of cabinet is 500～700mm.
Described cabinet uses cold-rolled steel sheet and aluminium profiles material to make.
Compared with prior art, this utility model at least has the advantage that
By above-mentioned the technical solution of the utility model, volometer, control knob and display lamp are arranged on outside cabinet, and cabinet uses the cold-rolled steel sheet of lightweight and aluminium profiles material to make, enormously simplify the structure of switch board, reduce weight and the floor space of switch board；It is provided with wiring groove inside switch board, facilitates patching of internal component, it is simple to installing and safeguard, inner side binding post access times are up to more than 100,000 times；This device installs PLC intelligent control system, and all inputs and output point all control to realize all of action by PLC program, controls by utilizing Ethernet interface to connect remote computer；This device also has overload protection function, default-phase protection function and overheat protective function, it is ensured that the safety of motor drag Soft Start-up Process.The fields such as invention can realize the smooth soft start of direct current generator and run, it is adaptable to the speed governing of various direct currents input motor, the regulation and control of excitation system, are that all kinds of universities and colleges carry out electrician, electric, machine teaching training and the ideal device of real training examination.
Accompanying drawing explanation
Fig. 1 is the external structure schematic diagram of a kind of motor drag soft start switch board that this utility model embodiment provides；
Fig. 2 is the internal structure block diagram of a kind of motor drag soft start switch board that this utility model embodiment provides.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model, the technical scheme in this utility model is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
As Figure 1-Figure 2, a kind of motor drag soft start switch board proposed for this utility model embodiment, including a cabinet 1, it is characterized in that: cabinet 1 is one side cabinet door type structure, volometer 2 is installed on cabinet door, power supply scram button 3, on off control switch 4, permutator 5 and signal lamp 6, cabinet 1 is fixedly provided with chopper, A.C. contactor, relay, current transformer, transformator, binding post, trough, soft initiator, buzzer, fan 7 and motor, cabinet is provided with power line on the downside of rear, one end of power line is connected with cabinet internal control circuit, the other end of power line connects external power source.
Further, permutator is provided with three switch positions, the most manually, stops and automatic；In being embodied as, when switch is placed in manual position, pressing starting button, motor passes through soft initiator starting operation；Pressing stop button then motor out of service, when switch is placed in automated location, can control start and stop according to electro connecting pressure gauge, low level starts, high-order stopping；During starting operation, running instruction and light, when faulty, fault alarm lights.
Further, PLC control system it is additionally provided with inside cabinet, the input of PLC control system connects power supply scram button, on off control switch, permutator and relay, and the outfan of PLC control system connects A.C. contactor, relay and signal lamp.
Preferably, being additionally provided with Ethernet interface in PLC control system, the input of Ethernet interface connects remote computer.
This device PLC control system accepts from the signal of button, switching point action, relay protection etc., and the output point of PLC control system realizes the action of A.C. contactor, relay and signal lamp, and wherein PLC includes following signal:
DI: digital quantity input point: dry contact signal；
DO: digital output point: relay dry contact signal；
AI: analog input point: 0-10V or 4-20mA signal；
AO: analog output point: 0-10V or 4-20mA signal；
RS485: PORT COM: defer to MODBUS communications protocol；
RJ45: Ethernet interface, defers to ICP/IP protocol.
Preferably, four edges of bottom of cabinet bulk are provided with four movable pulleys 8 that can brake.
Preferably, a length of the 1700 of cabinet～1900mm, the width of cabinet is 700～900mm, and the height of cabinet is 500～700mm.
Preferably, cabinet uses cold-rolled steel sheet and aluminium profiles material to make.
One, technical parameters and performance
The portion of techniques index of this device is as follows:
1, system power supply: three-phase four-wire system 380V ± 10%, 50Hz；
2, working environment: temperature-10 DEG C～+40 DEG C, relative humidity≤85% (25 DEG C), height above sea level≤4000m；
3, complete machine capacity :≤55kVA；
4, cabinet size: 1800*800*600mm.
The serviceability of this device is as follows:
(1) the soft stop time: 0～60 second；
(2) pattern is started: 6 kinds；
(3) shutdown mode: 2 kinds；
(4) soft start starting voltage: the 30%～80% of rated voltage；
(5) soft start current-limiting zone: the 50%～500% of rated current；
(6) soft stop current-limiting zone: the 20%～100% of soft start cut-off current；
(7) starting current stationarity: can not observe electric current jitter phenomenon with indicator type current meter.
Two, soft start control mode
In concrete implementation process, the one in following soft start control mode can be used to carry out motor drag soft start:
Slope boosting soft start: this start mode is the simplest, does not possess closed-loop current control, only adjusts turn on thyristors angle, be allowed to become with the time certain functional relationship to increase.
Slope principal of constant current soft: this start mode is to be gradually increased at the starting stage starting current of motor starting, when keeping constant (t1 to t2 stage), until starting complete after the value that electric current reaches set in advance.In starting process, it is can to adjust according to motor load to set that electric current rises the speed of change, and current rise rate is big, then starting torque is big, and the starting time is short.
Step starts: start, i.e. with the shortest time, makes starting current be rapidly reached setting value, is step and starts, and by regulation starting current setting value, can reach to quick start effect.
Pulse shock starts: start the incipient stage, allows IGCT within the level short time, falls after rise, then by former setting value linear rise, be connected into constant flow starting after turning on a period of time with larger current.
Three, plant running safety
Equipment when running for ensuring equipment and personal security, apparatus of the present invention also have a following defencive function:
(1) overload protection function: soft starter has introduced current regulator, thus the changing condition of tracing detection current of electric at any time.By increasing setting and the inverse time lag control model of overcurrent, it is achieved that overload protection function, when making motor overload, cutoff thyristor also sends alarm signal.
(2) default-phase protection function: during work, soft starter detects the change of triple line electric current at any time, once stops, can make open-phase protection reaction.
(3) overheat protective function: by the temperature of soft starter internal thermorelay detection thyristor radiator, automatically shut down IGCT after once radiator temperature exceedes permissible value, and send alarm signal.
The safety precaution of this equipment test run includes:
(1) power transmission please don't be dismantled electrical equipment, in case personnel get an electric shock injured.
(2) when setting self-drive function, motor run stop after automatically restarting, please don't be near machine in order to avoid danger.
Four, range and running experiment
It is noted that apparatus of the present invention except possess common electrical, electrically, machine teaching training and real training examination experiment, the smooth soft start such as direct current generator runs, the speed governing of various direct currents input motor, the regulation and control experiment etc. of excitation system, also has a following functions:
(1) fault message storage (power down is not lost) function；
(2) starting time memory, number of starts statistical function；
(3) running status memory, auto restore facility after dead electricity and again incoming call；
(4) 0～20mA real-time current (not intervened by CPU) output function；
(5) built-in RS232 and RS485 communication interface；
(6) start time delay (0～999 second), start interval time delay (0～999 second), output time delay able to programme (0～999 second).
This device applies also for following experimental implementation:
Soft initiator control panel arranges experiment, slope boosting soft start experiment, the experiment of slope constant current soft start, step starts experiment, pulse shock starts experiment, voltage double slanted starts experiment, current-limited startup experiment, the experiment of motor soft stop, the overcurrent protection experiment of motor, the overcurrent protection experiment of motor, the overload protection of motor is tested, the open-phase protection of motor is tested, the overtemperature protection of motor is tested, arranged 5 trouble point experiments etc..
Compared with prior art, this utility model at least has the advantage that
By above-mentioned the technical solution of the utility model, volometer, control knob and display lamp are arranged on outside cabinet, and cabinet uses the cold-rolled steel sheet of lightweight and aluminium profiles material to make, enormously simplify the structure of switch board, reduce weight and the floor space of switch board；It is provided with wiring groove inside switch board, facilitates patching of internal component, it is simple to installing and safeguard, inner side binding post access times are up to more than 100,000 times；This device installs PLC intelligent control system, and all inputs and output point all control to realize all of action by PLC program, controls by utilizing Ethernet interface to connect remote computer；This device also has overload protection function, default-phase protection function and overheat protective function, it is ensured that the safety of motor drag Soft Start-up Process.The fields such as invention can realize the smooth soft start of direct current generator and run, it is adaptable to the speed governing of various direct currents input motor, the regulation and control of excitation system, are that all kinds of universities and colleges carry out electrician, electric, machine teaching training and the ideal device of real training examination.
The above; it is only this utility model preferably detailed description of the invention; but protection domain of the present utility model is not limited thereto; any those familiar with the art is in the technical scope that this utility model discloses; the change that can readily occur in or replacement, all should contain within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (4)
1. a motor drag soft start switch board, including a cabinet, it is characterized in that: described cabinet is one side cabinet door type structure, on described cabinet door, volometer is installed, power supply scram button, on off control switchs, permutator and signal lamp, described cabinet is fixedly provided with chopper, A.C. contactor, relay, current transformer, transformator, binding post, trough, soft initiator, buzzer, fan and motor, it is provided with power line on the downside of described cabinet rear, one end of described power line is connected with cabinet internal control circuit, the other end of described power line connects external power source；
Wherein, it is additionally provided with PLC control system inside described cabinet, the input of described PLC control system connects power supply scram button, on off control switch, permutator and relay, and the outfan of described PLC control system connects A.C. contactor, relay and signal lamp；Being additionally provided with Ethernet interface in described PLC control system, the input of described Ethernet interface connects remote computer.
2. motor drag soft start switch board as claimed in claim 1, it is characterised in that: four edges of described bottom of cabinet bulk are provided with four movable pulleys that can brake.
3. motor drag soft start switch board as claimed in claim 1, it is characterised in that: a length of the 1700 of described cabinet～1900mm, the width of cabinet is 700～900mm, and the height of cabinet is 500～700mm.
4. motor drag soft start switch board as claimed in claim 1, it is characterised in that: described cabinet uses cold-rolled steel sheet and aluminium profiles material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520773001.XU CN205451625U (en) | 2015-09-30 | 2015-09-30 | Motor drag a soft start control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520773001.XU CN205451625U (en) | 2015-09-30 | 2015-09-30 | Motor drag a soft start control cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205451625U true CN205451625U (en) | 2016-08-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520773001.XU Expired - Fee Related CN205451625U (en) | 2015-09-30 | 2015-09-30 | Motor drag a soft start control cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205451625U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401883A (en) * | 2017-07-19 | 2017-11-28 | 深圳市傲天医疗智能系统有限公司 | Refrigerator self checking method and self-checking system |
| CN110994627A (en) * | 2016-12-16 | 2020-04-10 | 赫普能源环境科技有限公司 | Configuration system of electric heat storage device |
-
2015
- 2015-09-30 CN CN201520773001.XU patent/CN205451625U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994627A (en) * | 2016-12-16 | 2020-04-10 | 赫普能源环境科技有限公司 | Configuration system of electric heat storage device |
| CN110994627B (en) * | 2016-12-16 | 2024-04-19 | 赫普能源环境科技股份有限公司 | Electric heat storage device configuration system |
| CN107401883A (en) * | 2017-07-19 | 2017-11-28 | 深圳市傲天医疗智能系统有限公司 | Refrigerator self checking method and self-checking system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20160930 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |