CN202026263U - Low-voltage power switch and soft starter combined control cabinet - Google Patents
Low-voltage power switch and soft starter combined control cabinet Download PDFInfo
- Publication number
- CN202026263U CN202026263U CN201120116113XU CN201120116113U CN202026263U CN 202026263 U CN202026263 U CN 202026263U CN 201120116113X U CN201120116113X U CN 201120116113XU CN 201120116113 U CN201120116113 U CN 201120116113U CN 202026263 U CN202026263 U CN 202026263U
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- China
- Prior art keywords
- low
- power switch
- voltage power
- control cabinet
- motor
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- Expired - Fee Related
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Abstract
The utility model provides a low-voltage power switch and soft starter combined control cabinet. A low-voltage power switch is mounted at the inner upper part of a control cabinet and connected with two main contactors, wherein one main contactor is provided with a motor stator terminal output line, and the other main contactor is connected with a fixed polar plate in an electrolyte water tank through a line; a movable-polar-plate lifting motor is arranged at the outer end of a movable polar plate in the electrolyte water tank for soft start, the electrolyte water tank is arranged at the inner lower part of the control cabinet, and a motor rotor terminal output line is arranged on the line connecting the fixed polar plate and the main contactor. In the utility model, the low-voltage power switch and a liquid variable-resistance soft starter of a 380V three-phase AC motor are integrally combined to facilitate operation, maintenance and installation, and the combined control cabinet provided by the utility model can be used for power supply detection, metering and on/off control of the 380V three-phase AC motor, as well as the liquid variable-resistance soft starter.
Description
Technical field
The utility model relates to a kind of low-tension supply control cubicle, a kind of specifically low-voltage power switch and soft start Combination Control cabinet.
Background technology
The 380V three phase alternating current motor is widely used in each processing industry, but electric current is excessive during owing to starting, cause the impact of load easily, cause line voltage to descend simultaneously, and produce a large amount of harmful harmonic waves, increase the reactive loss of electric energy, for this reason when installing and using motor, control of soft is adopted in the capital, in the prior art, generally all be control of soft cabinet of connection in addition on motor, this control of soft cabinet that sets up separately with the mains switch control cubicle has all brought great trouble for installation, use, maintenance, occupation of land and expense expenditure.
Summary of the invention
The purpose of this utility model is to solve the technical deficiency of above-mentioned existence, a kind of low-voltage power switch and soft start Combination Control cabinet are provided, with mains switch control cubicle and the control of soft cabinet body that unites two into one, break-make and the control of soft start one that can disposable realization power supply.
The utility model comprises: be used for the low-voltage power switch upper end and be connected with the power input line road, the electrolyte water tank that is used for soft start is connected with rotor end outlet line, the technical scheme that is adopted is: the low-voltage power switch of installing above in control cubicle also connects two main contactors, one of them main contactor is provided with motor stator end outlet line, and another main contactor is connected with fixed plate in the electrolyte water tank by circuit;
The interior movable plate electrode outer end of electrolyte water tank that is used for soft start below in the above-mentioned control cubicle is provided with the movable plate electrode lifting motor, and the circuit that fixed plate links to each other with main contactor is provided with motor stator end outlet line.
In the such scheme: be connected with current transformer on the circuit on low-voltage power switch and power input line road.
The utility model is owing to adopted technique scheme, scientific and reasonable mains switch and soft start are united two into one constitutes a unified control cubicle, with after load motor is connected, break-make that can disposable realization power supply and soft-start operation control, efficiently solve control cubicle in the prior art and set up the problem of each side inconvenience such as the installation that brings, operation, maintenance separately, favourable energy-saving and environmental protection and minimizing are taken up an area of and are convenient to transportation and reduction expense expenditure, can promote the use of widely.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Accompanying drawing is the utility model structural representation.
Among the figure: 1, low-voltage power switch, 2, main contactor, 3, the electrolyte water tank, 4, current transformer, 5, movable plate electrode, 6, fixed plate, 7, the movable plate electrode lifting motor, 8, the power input line road, 9, motor stator end outlet line, 10, rotor end outlet line, 11, control cubicle.
Embodiment
Shown in the accompanying drawing embodiment: the low-voltage power switch of installing above in control cubicle 11 1 also connects two main contactors 2 (being respectively KM and KM2), one of them main contactor 2 (KM) is provided with motor stator end outlet line 9, and another main contactor 2 (KM2) is connected by the fixed plate 6 in circuit and the electrolyte water tank 3; Electrolyte water tank 3 interior movable plate electrode 5 outer ends that are used for soft start below in the same control cubicle 11 are provided with movable plate electrode lifting motor 7, and the circuit that fixed plate 6 links to each other with main contactor 2 is provided with motor stator end outlet line 9.On the circuit on low-voltage power switch 1 and power input line road 8, be connected with current transformer 4.
During concrete enforcement, control cubicle 11 inside should be provided with secondary controller spare, in the secondary control circuit, adopt the time relay, auxiliary relay, miniature circuit breaker, temperature controller, temperature sensor, Insurance Block etc., and outside control cubicle 11, control panel is set, temperature controller is set on panel, indicator light, action button, ammeter, voltage relay, voltmeter etc., can realize detection thus to power supply, metering and cut-off control and the motor 7 of adjusted movable plate electrode 5 makes it and fixed plate 6 adjusting that relatively moves, change and be connected on by the resistance of electrolyte in the rotor loop of controlled motor, in starting process, satisfy mechanical characteristics of motor all the time to sealing in the requirement of resistance value, thereby reach motor even raising speed under the situation of maximum starting torque of peak value and minimum starting current, smooth start, behind the proceed-to-send, another main contactor (KM) short circuit rotor loop is realized the alternating current motor soft start function thus.
Claims (2)
1. low-voltage power switch and soft start Combination Control cabinet,
It comprises:
Be used for low-voltage power switch (1) upper end and be connected with power input line road (8),
The electrolyte water tank (3) that is used for soft start is connected with rotor end outlet line (10),
It is characterized in that:
The low-voltage power switch (1) that install the top in control cubicle (11) also connects two main contactors (2), one of them main contactor (2) is provided with motor stator end outlet line (9), and another main contactor (2) is connected by the interior fixed plate (6) of circuit and electrolyte water tank (3);
Interior movable plate electrode (5) outer end of electrolyte water tank (3) that is used for soft start below in the above-mentioned control cubicle (11) is provided with movable plate electrode lifting motor (7), and the circuit that fixed plate (6) links to each other with main contactor (2) is provided with motor stator end outlet line (9).
2. low-voltage power switch according to claim 1 and soft start Combination Control cabinet is characterized in that: be connected with current transformer (4) on the circuit on low-voltage power switch (1) and power input line road (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120116113XU CN202026263U (en) | 2011-04-15 | 2011-04-15 | Low-voltage power switch and soft starter combined control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120116113XU CN202026263U (en) | 2011-04-15 | 2011-04-15 | Low-voltage power switch and soft starter combined control cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202026263U true CN202026263U (en) | 2011-11-02 |
Family
ID=44851197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120116113XU Expired - Fee Related CN202026263U (en) | 2011-04-15 | 2011-04-15 | Low-voltage power switch and soft starter combined control cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202026263U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103227592A (en) * | 2013-04-22 | 2013-07-31 | 赵学伦 | Three-contact motor starter |
| CN107219456A (en) * | 2017-05-23 | 2017-09-29 | 国网天津市电力公司 | Waterr rheostat test device |
-
2011
- 2011-04-15 CN CN201120116113XU patent/CN202026263U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103227592A (en) * | 2013-04-22 | 2013-07-31 | 赵学伦 | Three-contact motor starter |
| CN107219456A (en) * | 2017-05-23 | 2017-09-29 | 国网天津市电力公司 | Waterr rheostat test 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: 20111102 Termination date: 20170415 |