CN203491931U - Squirrel-cage motor soft starter - Google Patents
Squirrel-cage motor soft starter Download PDFInfo
- Publication number
- CN203491931U CN203491931U CN201320626104.4U CN201320626104U CN203491931U CN 203491931 U CN203491931 U CN 203491931U CN 201320626104 U CN201320626104 U CN 201320626104U CN 203491931 U CN203491931 U CN 203491931U
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- Prior art keywords
- switch
- soft
- connects
- squirrel
- motor
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- 239000007858 starting material Substances 0.000 title abstract 4
- 239000003999 initiator Substances 0.000 claims description 11
- 230000015556 catabolic process Effects 0.000 claims description 8
- 230000006837 decompression Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a squirrel-cage motor soft starter. The starter comprises: a general motor switch; a fault switch and a bypass contactor-controlling passive contact switch which are connected to the general motor switch; a reset switch connected to the bypass contactor-controlling passive contact switch; a quick stop switch connected to the reset switch; a soft stop switch connected to the quick stop switch; a soft start switch connected to the soft stop switch; a common terminal connected to the soft start switch; an operation signal switch connected to the fault switch; and a power supply interface connected to the operation signal switch. The starter not only has overload, overcharge and open-phase protection functions, but also has reset, soft stop and quick stop functions, and thus protects motor usage more comprehensively.
Description
Technical field
The utility model relates to a kind of squirrel-cage motor soft initiator.
Background technology
Squirrel-cage threephase asynchronous is the power consumption equipment being most widely used, and traditional Starting mode has star triangle start, auto coupling decompression start, reactor decompression starting, extend-triangle decompression starting etc., and these Starting mode all belong to a grade decompression starting.Their common feature is that control circuit is simple, but detent torque is non-adjustable, has larger impulse current in start-up course, make to be dragged load and be subject to larger mechanical shock, and be subject to the impact of voltage ripple of power network, once voltage ripple of power network, can cause difficulty in starting, even make motor rotation blockage.During shutdown, several starting methods are all instantaneous power failures, also will cause violent voltage ripple of power network and mechanical shock.So need a soft starting device carry out Slow loading to motor, on the market mostly soft start only there is overcurrent, overload, default-phase protection function, can not meet the demand of industrialization development.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of not only have overload, overcurrent and default-phase protection function, only also has reset, soft stop and the squirrel-cage motor soft initiator of quick hold function.
For addressing the above problem, the utility model adopts following technical scheme: a kind of squirrel-cage motor soft initiator, the breakdown switch that comprises motor master switch and be connected with motor master switch and the passive contact switch of control bypass contactor, the passive contact switch of described control bypass contactor connects reset switch, reset switch connects fast guard's valve, described fast guard's valve connects soft shutdown switch, soft shutdown switch connects soft start switch, soft start switch connects public end, described breakdown switch connects run signal switch, run signal switch connects power interface, described power interface is connected with public end.
As preferably, an ammeter in parallel on the circuit between described power interface and public end.
As preferably, on described power interface, be connected with earthing device.
The beneficial effects of the utility model are: novel squirrel-cage motor soft initiator not only possesses overload, overcurrent and default-phase protection function, but also possess reset, soft stop only and quick hold function has more comprehensively been protected the use of motor.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of squirrel-cage motor soft initiator of the utility model.
In figure: 1, motor master switch; 2, control the passive contact switch of bypass contactor; 3, reset switch; 4, fast guard's valve; 5, soft fast guard's valve; 6, soft start switch; 7, public end; 8, breakdown switch; 9, run signal switch; 10, power interface; 11, earthing device.
Embodiment
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment being described with reference to the drawings, be exemplary, only for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, unless otherwise prescribed and limit, it should be noted that, term " installation ", " being connected ", " connection " should be interpreted broadly, for example, can be mechanical connection or electrical connection, can be also the connection of two element internals, can be to be directly connected, also can indirectly be connected by intermediary.For the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term.
Consult shown in Fig. 1, a kind of squirrel-cage motor soft initiator, the breakdown switch 8 that comprises motor master switch 1 and be connected with motor master switch 1 and the passive contact switch 2 of control bypass contactor, the passive contact switch 2 of described control bypass contactor connects reset switch 3, reset switch 3 connects fast guard's valve 4, described fast guard's valve 4 connects soft shutdown switch 5, soft shutdown switch 5 connects soft start switch 6, soft start switch 6 connects public end 7, described breakdown switch 8 connects run signal switch 9, run signal switch 9 connects power interface 10, described power interface 10 is connected with public end 7.
An ammeter in parallel on circuit between described power interface 10 and public end 7.On described power interface 10, be connected with earthing device 11.
During machine operation, run signal switch 9 closures, when fast guard's valve 4 disconnects, motor can stop rapidly, and when soft shutdown switch 5 is opened, soft start work starts, motor slowly stops, soft start switch 6 is connected, and soft start is opened, and motor slowly starts, when motor breaks down, closed breakdown switch 8 can be removed malfunction.
The beneficial effects of the utility model are: novel squirrel-cage motor soft initiator not only possesses overload, overcurrent and default-phase protection function, but also possess reset, soft stop only and quick hold function has more comprehensively been protected the use of motor.
In the description of this specification, the description of reference term " embodiment ", " example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: in the situation that not departing from principle of the present utility model and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is limited by claim and equivalent thereof.
Claims (3)
1. a squirrel-cage motor soft initiator, it is characterized in that, the breakdown switch that comprises motor master switch and be connected with motor master switch and the passive contact switch of control bypass contactor, the passive contact switch of described control bypass contactor connects reset switch, reset switch connects fast guard's valve, described fast guard's valve connects soft shutdown switch, soft shutdown switch connects soft start switch, soft start switch connects public end, described breakdown switch connects run signal switch, run signal switch connects power interface, and described power interface is connected with public end.
2. squirrel-cage motor soft initiator according to claim 1, is characterized in that, an ammeter in parallel on the circuit between described power interface and public end.
3. squirrel-cage motor soft initiator according to claim 1, is characterized in that, on described power interface, is connected with earthing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320626104.4U CN203491931U (en) | 2013-10-11 | 2013-10-11 | Squirrel-cage motor soft starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320626104.4U CN203491931U (en) | 2013-10-11 | 2013-10-11 | Squirrel-cage motor soft starter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203491931U true CN203491931U (en) | 2014-03-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320626104.4U Expired - Lifetime CN203491931U (en) | 2013-10-11 | 2013-10-11 | Squirrel-cage motor soft starter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203491931U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103501134A (en) * | 2013-10-11 | 2014-01-08 | 昆山市润苏物资有限公司 | Soft starter for squirrel-cage motor |
-
2013
- 2013-10-11 CN CN201320626104.4U patent/CN203491931U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103501134A (en) * | 2013-10-11 | 2014-01-08 | 昆山市润苏物资有限公司 | Soft starter for squirrel-cage motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID SHANGHAI ELECTRIC POWER COMPANY Free format text: FORMER OWNER: KUNSHAN RUNSU MATERIAL CO., LTD. Effective date: 20150107 Owner name: EAST CHINA ELECTRIC POWER TEST + RESEARCH INSTITUT Effective date: 20150107 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 215300 SUZHOU, JIANGSU PROVINCE TO: 200002 HUANGPU, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150107 Address after: 200002 Nanjing East Road, Shanghai, No. 181, No. Patentee after: STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER Co. Patentee after: EAST CHINA ELECTRIC POWER TEST AND RESEARCH INSTITUTE Co.,Ltd. Address before: 215300 room 224, building 8, the Yellow River Road, Kunshan Development Zone, Jiangsu, Suzhou Patentee before: Kunshan Runsu Material Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140319 |