CN201383780Y - Mining soft starter - Google Patents
Mining soft starter Download PDFInfo
- Publication number
- CN201383780Y CN201383780Y CN200920070801U CN200920070801U CN201383780Y CN 201383780 Y CN201383780 Y CN 201383780Y CN 200920070801 U CN200920070801 U CN 200920070801U CN 200920070801 U CN200920070801 U CN 200920070801U CN 201383780 Y CN201383780 Y CN 201383780Y
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- CN
- China
- Prior art keywords
- soft starter
- mining
- soft
- input
- starting circuit
- 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.)
- Expired - Fee Related
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- 239000007858 starting material Substances 0.000 title claims abstract description 27
- 238000005065 mining Methods 0.000 title claims abstract description 20
- 239000004065 semiconductor Substances 0.000 claims abstract description 7
- 238000010521 absorption reaction Methods 0.000 claims description 6
- 230000002457 bidirectional effect Effects 0.000 claims description 4
- 238000001179 sorption measurement Methods 0.000 abstract 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model provides a soft starter applied to mining fields; the soft starter is characterized in that: the soft starter comprises a change-over switch 1, a vacuum contactor 3, a soft starting circuit 4, a resistance-capacitance adsorption device 6 and a current transformer 2; the input of the current transformer 2 is connected with the change-over switch 1, the output of the current transformer 2 is connected with the soft starting circuit 4, and the resistance-capacitance adsorption device 6 is connected with a power supply of a motor in parallel. The mining soft starter also comprises a semiconductor power component 7 and a power supply transformer 8, the input of the power supply transformer 8 is connected with electric supply, and the output thereof is connected with the soft starting circuit 4.
Description
Technical field
The utility model relates to the starting and control equipment of motor, relates in particular to a kind of mining soft starter.
Background technology
In industrial circle, use motor device widely, wherein the most commonly used is mouse cage AC type asynchronous machine.This kind motor is that back-emf is main load, promptly is to use back-emf to come the balance external making alive.When motor starting, back-emf can increase and becomes big gradually along with the rotating speed of rotor, so the impulse current during starting is very big.When capacity motor is big, can cause the safe operation of disturbing or even endangering electrical network to electrical network and other loads.In order to address this problem, need to use starting to control voltage when starting, being voltage changes in mode relatively slowly, is called soft start.More particularly, be the angle of flow that utilization is serially connected with the thyristor of the soft-starter control inside between power supply and the controlled motor, the motor input voltage started from scratch rise gradually, until proceed-to-send with the preset function relation, give the motor full voltage, finish Soft Start-up Process.When using motor soft starter, often there is harsh requirement of explosion proof at the scene, mining area to soft starter.
The utility model content
The purpose of this utility model provides a kind of soft starter that can be applied to the mining area.
The technical solution of the utility model is, a kind of mining soft starter, it is characterized in that, comprise change over switch 1, vacuum contactor 3, soft starting circuit 4, capacitance-resistance absorption plant 6 summation current transformers 2, the input of described current transformer 2 connects described change over switch 1, the input of this current transformer 2 connects described soft starting circuit 4, and described capacitance-resistance absorption plant 6 is imported and connect with the power supply of motor.
Described mining soft starter also comprises semiconductor power component 7 and power transformer 8, and the input of described power transformer 8 connects civil power, and output connects described soft starting circuit 4.
Described semiconductor power component 7 adopts bidirectional triode thyristor.
Described mining soft starter also comprises auxiliary relay, earth leakage search/lockout device and intrinsically safe circuit.
The beneficial effects of the utility model provide a kind of soft starter that can be applied to the mining area.
Description of drawings
Fig. 1 is that the principle of the utility model one embodiment is formed schematic diagram.
Embodiment
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of mining soft starter, it is characterized in that, comprise change over switch 1, vacuum contactor 3, soft starting circuit 4, capacitance-resistance absorption plant 6 summation current transformers 2, the input of described current transformer 2 connects described change over switch 1, and the input of this current transformer 2 connects described soft starting circuit 4.Described capacitance-resistance absorption plant 6 is imported and is connect with the power supply of motor.Described mining soft starter also comprises semiconductor power component 7 and power transformer 8.The input of described power transformer 8 connects civil power, and output connects described soft starting circuit 4.
Described semiconductor power component 7 adopts bidirectional triode thyristor.Described mining soft starter also comprises auxiliary relay, earth leakage search/lockout device and intrinsically safe circuit.Described soft starting circuit also comprises bypass relay, programmable time delay relay and fault output relay.
The utility model uses the structure of bidirectional triode thyristor as the motor soft starter of power device, uses bypass copper bar and current transformer.The power conversion synchronous detecting is connected to three phase mains, and this sync detection device obtains current signal by the current transformer on three input copper bars, and the power conversion sync detection device is sampled signal before the TRIAC assembly, is input to soft starting circuit.Current sensing means is connected to motor, need utilize three current transformers on the input copper bar to sample equally and export the signal of motor from motor soft starter to, and be input to the soft starting circuit processor.The trigger impulse generation device is connected to processor, produces trigger impulse.Processor is controlled the starting process of motor according to the current signal of power conversion sync detection device and current sensing means collection.Wherein, input unit is a keyboard and display unit is a light-emitting diode display, this soft starter and another difference of the prior art are that it also comprises analog signal output, export the size of current of the motor of can sampling by analog signal, for example use the analog current signal of 0～20mA, its current signal with sampling is used in combination the operation conditions in the time of can obtaining electric motor starting more exactly.
Claims (4)
1, a kind of mining soft starter, it is characterized in that, comprise change over switch (1), vacuum contactor (3), soft starting circuit (4), capacitance-resistance absorption plant (6) summation current transformer (2), the input of described current transformer (2) connects described change over switch (1), the input of this current transformer (2) connects described soft starting circuit (4), and described capacitance-resistance absorption plant (6) is imported and connect with the power supply of motor.
2, mining soft starter as claimed in claim 1 is characterized in that, described mining soft starter also comprises semiconductor power component (7) and power transformer (8), and the input of described power transformer (8) connects civil power, and output connects described soft starting circuit (4).
3, mining soft starter as claimed in claim 2 is characterized in that, described semiconductor power component (7) adopts bidirectional triode thyristor.
4, mining soft starter as claimed in claim 2 is characterized in that, described mining soft starter also comprises auxiliary relay, earth leakage search/lockout device and intrinsically safe circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920070801U CN201383780Y (en) | 2009-04-21 | 2009-04-21 | Mining soft starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920070801U CN201383780Y (en) | 2009-04-21 | 2009-04-21 | Mining soft starter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201383780Y true CN201383780Y (en) | 2010-01-13 |
Family
ID=41527251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920070801U Expired - Fee Related CN201383780Y (en) | 2009-04-21 | 2009-04-21 | Mining soft starter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201383780Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406442A (en) * | 2015-12-14 | 2016-03-16 | 长沙奥托自动化技术有限公司 | Motor electric leakage detection method used for soft starter |
-
2009
- 2009-04-21 CN CN200920070801U patent/CN201383780Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406442A (en) * | 2015-12-14 | 2016-03-16 | 长沙奥托自动化技术有限公司 | Motor electric leakage detection method used for soft starter |
| CN105406442B (en) * | 2015-12-14 | 2018-11-23 | 长沙奥托自动化技术有限公司 | A kind of soft starter motor electrical leakage detecting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI WERKAI ELECTRICAL TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: WERKAI ELECTRIC (SHANGHAI) CO., LTD. Effective date: 20120808 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201414 FENGXIAN, SHANGHAI TO: 201400 FENGXIAN, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120808 Address after: 201400 Shanghai Fengxian District Green Town Qinggang Light Industrial Park Road No. 12 Patentee after: Shanghai Weierkai Electrical Technology Co.,Ltd. Address before: 201414 Shanghai city Fengxian District Green Town Light Road No. 1260 building fourth Patentee before: Werkai Electric (Shanghai) Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: WERKAI ELECTRIC (SHANGHAI) CO., LTD. Free format text: FORMER OWNER: SHANGHAI WERKAI ELECTRICAL TECHNOLOGY CO., LTD. Effective date: 20130123 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201400 FENGXIAN, SHANGHAI TO: 201414 FENGXIAN, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130123 Address after: 201414 Shanghai city Fengxian District Green Town Light Road No. 1260 building fourth Patentee after: Werkai Electric (Shanghai) Co., Ltd. Address before: 201400 Shanghai Fengxian District Green Town Qinggang Light Industrial Park Road No. 12 Patentee before: Shanghai Weierkai Electrical Technology Co.,Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 201499, No. 720, 2 East yuan Lu, Shanghai, Fengxian District Patentee after: Wilke electric (Shanghai) Limited by Share Ltd Address before: 201414 Shanghai city Fengxian District Green Town Light Road No. 1260 building fourth Patentee before: Werkai Electric (Shanghai) Co., Ltd. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160413 Address after: 200000 Shanghai Fengxian District Green Town Qinggang Light Industrial Park Road No. 12 Patentee after: Wilke drive technology (Shanghai) Co., Ltd. Address before: 201499, No. 720, 2 East yuan Lu, Shanghai, Fengxian District Patentee before: Wilke electric (Shanghai) Limited by Share Ltd |
|
| 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: 20100113 Termination date: 20180421 |