CN205004970U - Solid -state soft starting drive core of explosion -proof middling pressure of telescopic formula - Google Patents
Solid -state soft starting drive core of explosion -proof middling pressure of telescopic formula Download PDFInfo
- Publication number
- CN205004970U CN205004970U CN201520816158.6U CN201520816158U CN205004970U CN 205004970 U CN205004970 U CN 205004970U CN 201520816158 U CN201520816158 U CN 201520816158U CN 205004970 U CN205004970 U CN 205004970U
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- China
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- control unit
- power control
- net side
- side joint
- transformer
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- Expired - Fee Related
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Abstract
The utility model provides a solid -state soft starting drive core of explosion -proof middling pressure of telescopic formula, the power control unit that established on transporting the frame links to each other with net side joint tentaculum, net side joint tentaculum upper portion is equipped with the transformer, be equipped with overvoltage protection device, current transformer, bypass contactor on transporting frame left side board, inlet wire cable junction is to netting side joint tentaculum and bypass contactor inlet wire end, and the lower extreme of net side joint tentaculum is connected with the power control unit, and after bypass contactor and the power control unit connection, with being qualified for the next round of competitions cable junction, the cable of being qualified for the next round of competitions runs through current transformer, connects overvoltage protection device, the once side of transformer goes between from net side joint tentaculum and connects, the electric current loops through net side joint tentaculum, power control unit, arrester, current transformer, with the right side of passing current transformer cable junction to the outside motor of being qualified for the next round of competitions, the motor accelerates gradually, and the thyristor is whole to switch on, and the motor is level and smooth to be started, control circuit switches to bypass contactor, have smallly, simple structure is compact, safe and reliable's characteristics.
Description
Technical field
The utility model belongs to soft Starting Technology field, be specifically related to a kind of withdrawable explosion-proof in press solidly state soft starting device movement.
Background technology
Explosion-proof soft cabinet is generally used for the more mine of imflammable gas, and the lane space of down-hole is general narrower, and explosion-proof soft the cabinet being not easy to volume larger is protected motor.At present, explosion-proof soft the traditional general volume of cabinet is comparatively large, is not easy to the transport in down-hole and installation, and volume too increases more greatly the cost of product simultaneously.The bulky main cause of anti-explosion cabinet is that movement (explosion-proof movement) volume of its inside is comparatively large, causes anti-explosion cabinet to become large.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the purpose of this utility model be to provide a kind of withdrawable explosion-proof in press solidly state soft starting device movement, there is volume little, simple and compact for structure, safe and reliable, after installation is interior with explosion-proof soft shell, under safe and reliable prerequisite, the volume of explosion-proof soft cabinet can reduce greatly, is convenient to the transportation, installation, maintenance of down-hole.
For achieving the above object, the technical solution adopted in the utility model is: a kind of withdrawable explosion-proof in press solidly state soft starting device movement, include the power control unit be located on transhipment framework, power control unit is connected with the net side contactor on its top; Net side contactor top is provided with transformer; Bottom-uply on transhipment framework left plate be provided with overvoltage protection device, current transformer, bypass contactor, first inlet wire cable is connected to net side contactor and bypass contactor end of incoming cables, the lower end of net side contactor is connected with the upper end of power control unit, after the lower end of bypass contactor is connected with the lower end of power control unit, connect with outlet cable, outlet cable runs through current transformer when drawing, and connects overvoltage protection device; The primary side of transformer carries out lead-in wire and connects from the upper end of net side contactor; Transhipment base of frame is provided with directional wheel.
The beneficial effects of the utility model are:
Power control unit of the present utility model is again can extract parts out separately relative to core framework, after whole running movement is installed into explosion-proof casing inside, power control unit module can be extracted out separately, convenient bottom mine, narrow space, power control unit has during problem can be safeguarded separately.
Have and reduce blasting-proof machine core volume, the volume of anti-explosion cabinet is reduced, weight saving, can pull-out type installation be carried out, be convenient to the feature of transport, installation and maintenance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further details.
See Fig. 1, a kind of withdrawable explosion-proof in press solidly state soft starting device movement, include the power control unit 4 be located on transhipment framework 10, power control unit 4 is connected with the net side contactor 3 on its top; Net side contactor 3 top is provided with transformer 2; Bottom-uply on transhipment framework 10 left plate be provided with overvoltage protection device 6, current transformer 7, bypass contactor 8, first inlet wire cable 1 is connected to net side contactor 3 and bypass contactor 8 end of incoming cables, the lower end of net side contactor is connected with the upper end of power control unit 4, after the lower end of bypass contactor is connected with the lower end of power control unit, connect with outlet cable 9, outlet cable runs through current transformer 7 when drawing, and connects overvoltage protection device 6; The primary side of transformer 2 carries out lead-in wire and connects from the upper end of net side contactor; Directional wheel 5 is provided with bottom transhipment framework 10.
The starting characteristic of asynchronous motor mainly contains two indices: starting current multiple, detent torque multiple.Soft initiator is exactly when motor start-up by changing the supply voltage that is added on motor, to reduce starting current and detent torque to realize soft of motor.The current limiting characteristic of soft start can impulse current when effectively restrictions motor starts, avoids unnecessary impact moment and the rush of current to distribution network, effectively decreases the false triggering action of circuit disconnecting link and contactor.To the motor of frequent starting, can effectively control electronic temperature rise, greatly extend the useful life of some motivation.
Operation principle of the present utility model is:
Three phase mains enters in cabinet from upper end cable, and electric current, successively by net side contactor, power control unit, lightning arrester, current transformer, is connected to external motor with the right outlet cable through current transformer; In power control unit, rise gradually from zero in turn on thyristors angle, and motor accelerates gradually, until the whole conducting of thyristor, motor smoothly starts; After motor reaches rated speed, current of electric drops to the normal current value run; By control loop, automatically switch to bypass contactor, startup work completes.
Claims (1)
1. one kind withdrawable explosion-proof in press solidly state soft starting device movement, it is characterized in that, include the power control unit (4) be located in transhipment framework (10), power control unit (4) is connected with the net side contactor (3) on its top; Net side contactor (3) top is provided with transformer (2); Transhipment framework (10) left plate is bottom-uply provided with overvoltage protection device (6), current transformer (7), bypass contactor (8), inlet wire cable (1) is first connected to net side contactor (3) and bypass contactor (8) end of incoming cables, the lower end of net side contactor is connected with the upper end of power control unit (4), after the lower end of bypass contactor is connected with the lower end of power control unit, same outlet cable (9) connects, outlet cable runs through current transformer (7) when drawing, and connects overvoltage protection device (6); The primary side of transformer (2) carries out lead-in wire and connects from the upper end of net side contactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520816158.6U CN205004970U (en) | 2015-10-21 | 2015-10-21 | Solid -state soft starting drive core of explosion -proof middling pressure of telescopic formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520816158.6U CN205004970U (en) | 2015-10-21 | 2015-10-21 | Solid -state soft starting drive core of explosion -proof middling pressure of telescopic formula |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205004970U true CN205004970U (en) | 2016-01-27 |
Family
ID=55161839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520816158.6U Expired - Fee Related CN205004970U (en) | 2015-10-21 | 2015-10-21 | Solid -state soft starting drive core of explosion -proof middling pressure of telescopic formula |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205004970U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429870A (en) * | 2019-09-09 | 2019-11-08 | 苏州艾克威尔科技有限公司 | A kind of high pressure soft starting device |
-
2015
- 2015-10-21 CN CN201520816158.6U patent/CN205004970U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429870A (en) * | 2019-09-09 | 2019-11-08 | 苏州艾克威尔科技有限公司 | A kind of high pressure soft starting device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160127 Termination date: 20181021 |