CN101330263A - Conventional soft starter for motor - Google Patents
Conventional soft starter for motor Download PDFInfo
- Publication number
- CN101330263A CN101330263A CNA2008100412650A CN200810041265A CN101330263A CN 101330263 A CN101330263 A CN 101330263A CN A2008100412650 A CNA2008100412650 A CN A2008100412650A CN 200810041265 A CN200810041265 A CN 200810041265A CN 101330263 A CN101330263 A CN 101330263A
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- CN
- China
- Prior art keywords
- signal
- soft starter
- motor
- protection
- processes
- 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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- Control Of Ac Motors In General (AREA)
- Motor And Converter Starters (AREA)
Abstract
The invention relates to a conventional motor soft starter, more particularly a full digital-control soft starter. The indicative signal of a signal relay of the soft starter comprises a fault signal, an overload signal, an operation signal and a start-up boost finish signal. The soft starter serves the excellent control function and multiple protective functions. Compared with the prior art, the soft starter utilizes a 16-bit single chip microcomputer to realize the full-digital date processing and to control the voltage ramp during the processes of the start-up and the stop; serves the functions of pulse bound, high-current shut-off, pump stop, built-in electronic overpower protection, phase-failure protection, over-current protection, over-temperature protection, self-diagnosis and energy conservation; can eliminate the current impact during the processes of the start-up and the stop of the motor; can reduce the capacity of the power network; and can protect the motor and the load against the mechanical shock during the processes of the start-up of the motor.
Description
[technical field]
The present invention relates to a kind of motor soft starter of routine, especially a kind of soft starter of digital control.
[technical background]
At present, known soft-starter control function and imperfection and lack a lot of defencive functions, as the impact of the electric current in motor starting, the stopped process, net capacity height, impact of machinery etc. during electric motor starting.For example as most widely used squirrel cage asynchronous motor, it adopts the condition of reduced voltage starting: the one, and during motor starting, machinery can not bear the impact torque of direct-on-line starting; The 2nd, during motor starting, its terminal voltage can not satisfy code requirement; The 3rd, during motor starting, influence the normal operation of other loads.
[summary of the invention]
In order to overcome the deficiency of present motor soft starter; it is very perfect and the motor soft starter of kinds of protect function arranged to the present invention relates to a kind of controlled function; it adopts 16 single-chip microcomputers; data processing realizes whole digitlizations; starting and the voltage ramp when stopping are by Single-chip Controlling; has the pulse kick; big electric current disconnects; pump stops; built-in electronic overload protection (optional); open phase protection; overcurrent protection; overheat protector; and have self diagnosis and a power saving function; can eliminate motor starting; rush of current in the stopped process; reduce net capacity; mechanical shock when avoiding electric motor starting, protection motor and load.
The technical solution adopted for the present invention to solve the technical problems is: in motor soft starter, add have the pulse kick, big electric current disconnects, pump stops, built-in electronic overload protection (optional), open phase protection, overcurrent protection, overheat protector; and have self diagnosis and a function such as energy-conservation; and adopt 16 single-chip microcomputers; data processing realizes whole digitlizations, start and the voltage ramp when stopping by Single-chip Controlling.
The invention has the beneficial effects as follows, its sound construction compactness, quick and easy for installation, regulator potentiometer on all logical front panel of all parameters and function choosing-item and function choosing-item switch are set and are selected.Visual and clear, easy each working stage and state and fault all have corresponding LED indication to allow the user come into plain view.
[embodiment]
When using soft starter of the present invention, the output voltage of thyristor increases gradually, and motor quickens to know the full conducting of thyristor gradually, motor is operated on the mechanical property of rated operational voltage, realize level and smooth the startup, reduce starting current, avoid starting overcurrent tripping.When treating that motor reaches rated revolution, start-up course finishes, soft initiator replaces the thyristor of having finished the work from employing bypass contactor, be motor normal operation rated voltage, reduced the thermal losses of thyristor, prolong the useful life of soft initiator, improve its operating efficiency, make electrical network avoid harmonic pollution again.Soft initiator of the present invention also provides open phase protection, overcurrent protection, overheat protector, and has self diagnosis and function such as energy-conservation.
Claims (4)
1. the motor soft starter of a routine is characterized in that: the signal indication of signal relay is made up of the boost signal that finishes of fault-signal, overload signal, run signal, starting; The rated current of starter is divided 13 grades, be respectively 75A, 90A, 110A, 145A, 175A, 210A, 250A, 300A, 370A, 470A, 570A, 720A, 840A, principal voltage is divided 4 grade 230VAC, 400VAC, 500VAC, 690VAC, difference applicable scope 220-240VAC, 380-420VAC, 480-520VAC, 660-690VAC, control voltage divides 2 grade 115VAC, 230VAC, respectively applicable scope 110-120VAC, 220-240VAC.
2. the motor soft starter of a kind of routine according to claim 1 is characterized in that the fault-signal that LED shows is a red light, and overload signal is an amber light, and run signal is an amber light, and the boost signal that finishes of starting is an amber light.
3. the motor soft starter of a kind of routine according to claim 1, the ambient temperature 0-50 when it is characterized in that moving ℃, the ambient temperature-40-+70 during standby ℃.
4. the motor soft starter of a kind of routine according to claim 1 is characterized in that setting the scope of the rise time when starting is 0.5-60S, and the step-down time range of setting when stopping is 0.5-240S.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100412650A CN101330263A (en) | 2008-08-01 | 2008-08-01 | Conventional soft starter for motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100412650A CN101330263A (en) | 2008-08-01 | 2008-08-01 | Conventional soft starter for motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101330263A true CN101330263A (en) | 2008-12-24 |
Family
ID=40205904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100412650A Pending CN101330263A (en) | 2008-08-01 | 2008-08-01 | Conventional soft starter for motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101330263A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102315806A (en) * | 2010-07-06 | 2012-01-11 | 保定卓尔电气有限公司 | Smooth soft starting device of direct current motor |
| CN115387946A (en) * | 2022-08-27 | 2022-11-25 | 东风电驱动系统有限公司 | Starter and car with unusual operating mode self-diagnosis protect function |
-
2008
- 2008-08-01 CN CNA2008100412650A patent/CN101330263A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102315806A (en) * | 2010-07-06 | 2012-01-11 | 保定卓尔电气有限公司 | Smooth soft starting device of direct current motor |
| CN102315806B (en) * | 2010-07-06 | 2014-04-02 | 保定卓尔电气有限公司 | Smooth soft starting device of direct current motor |
| CN115387946A (en) * | 2022-08-27 | 2022-11-25 | 东风电驱动系统有限公司 | Starter and car with unusual operating mode self-diagnosis protect function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081224 |