CN202816801U - AC vacuum contactor control system - Google Patents
AC vacuum contactor control system Download PDFInfo
- Publication number
- CN202816801U CN202816801U CN2012204126306U CN201220412630U CN202816801U CN 202816801 U CN202816801 U CN 202816801U CN 2012204126306 U CN2012204126306 U CN 2012204126306U CN 201220412630 U CN201220412630 U CN 201220412630U CN 202816801 U CN202816801 U CN 202816801U
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- power supply
- power
- control system
- trigger circuit
- pulse width
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- 238000004804 winding Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 102100031786 Adiponectin Human genes 0.000 description 1
- 101000775469 Homo sapiens Adiponectin Proteins 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
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Abstract
The utility model relates to a power transmission device, particularly to an AC vacuum contactor control system that comprises an AC power supply input terminal, wherein the AC power supply input terminal outputs the DC power supply to a trigger circuit via an AC/DC converting circuit; the output terminal of the trigger circuit is connected to a pick-up coil of the contactor; the trigger circuit is controlled by a pulse width modulation processor to output the DC pulse width; the control signal input terminal of the pulse width modulation processor is connected with a voltage comparison identification circuit capable of collecting and comparing the power voltage signals; and the output pulse width of the trigger circuit can be adjusted in a real-time manner according to the collected voltage signals. The AC vacuum contactor control system of the utility model can adjust the trigger circuit of the pick-up coil in a real-time manner by monitoring and comparing the AC power supply voltages, thereby making the pick-up coil keep stable operation state all the time, improving the operation reliability of the contactor, and cutting down the electricity consumption as well.
Description
Technical field
The utility model relates to a kind of transmission facility, specifically a kind of AC vacuum contactor control system.
Background technology
AC vacuum contactor is widely used in electric power, metallurgy, mine, machinery, petrochemical industry, the adapted electric system of the industrial enterprise such as traffic, electric capacitor bucking-out system, control three-phase alternating-current motor or other electric appliance load.Because vacuum contactor control electric current is larger, hundreds of is pacified at least, thousands of peaces at most, therefore its control section is generally controlled by twin coil, the one, actuating coil, the 2nd, adhesive keeping coil, the starting power of actuating coil are generally about 800 to 1000 watts, the power of keeping coil is generally at several hectowatts, one cover ACDC change-over circuit also must be arranged, the annexes such as change over switch, the one, production cost is high, and reliability is also relatively poor, because the direct current starting, direct current is kept adhesive, does not take other technical measures, therefore pickup time and release time are generally all longer, 180-200 bold and unconstrained seconds approximately, and very high to the line voltage requirement, and scope range of the fluctuation of voltage is in case surpass positive and negative ten Percent five, contactor may discharge automatically, and power utilization environment is caused great potential safety hazard.
Summary of the invention
Technical problem to be solved in the utility model is, a kind of fluctuation one that can monitoring voltage is provided, and in real time attract current regulated, and can improve the AC vacuum contactor control system of contactor operation stability.
AC vacuum contactor control system of the present utility model includes ac power input end, and ac power input end exports DC power supply to circuits for triggering through an AC/DC change-over circuit, and the output of circuits for triggering is connected to the contactor pull-in winding; Described circuits for triggering are controlled its output DC stream pulsewidth by a pulse-width modulation processor; The control signal input of described pulse-width modulation processor is connected with a voltage ratio that can gather and compare power supply voltage signal than identification circuit, adjusts in real time the output pulse width of circuits for triggering according to the voltage signal that gathers.
Described pulse-width modulation processor provides working power by a power circuit, and power circuit obtains power supply from ac power input end.
The utility model can be adjusted the circuits for triggering of pull-in winding in real time by AC supply voltage is monitored and compared, and makes pull-in winding remain stable operating state, has improved the functional reliability of contactor, also can save power consumption simultaneously.
Description of drawings
Fig. 1 is systematic schematic diagram of the present utility model.
Embodiment
As shown in the figure, this AC vacuum contactor control system includes ac power input end, and ac power input end exports DC power supply to circuits for triggering through an AC/DC change-over circuit, and the output of circuits for triggering is connected to the contactor pull-in winding; Described circuits for triggering are controlled its output DC stream pulsewidth by a pulse-width modulation processor; The control signal input of described pulse-width modulation processor is connected with a voltage ratio that can gather and compare power supply voltage signal than identification circuit, adjusts in real time the output pulse width of circuits for triggering according to the voltage signal that gathers.The pulse-width modulation processor provides working power by a power circuit, and power circuit obtains power supply from ac power input end.
Claims (2)
1. AC vacuum contactor control system, include ac power input end, it is characterized in that: ac power input end exports DC power supply to circuits for triggering through an AC/DC change-over circuit, and the output of circuits for triggering is connected to the contactor pull-in winding; Described circuits for triggering are controlled its output DC stream pulsewidth by a pulse-width modulation processor; The control signal input of described pulse-width modulation processor is connected with one can gather and compare the voltage ratio of power supply voltage signal than identification circuit.
2. AC vacuum contactor control system according to claim 1, it is characterized in that: described pulse-width modulation processor provides working power by a power circuit, and power circuit obtains power supply from ac power input end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204126306U CN202816801U (en) | 2012-08-20 | 2012-08-20 | AC vacuum contactor control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204126306U CN202816801U (en) | 2012-08-20 | 2012-08-20 | AC vacuum contactor control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202816801U true CN202816801U (en) | 2013-03-20 |
Family
ID=47875645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204126306U Expired - Lifetime CN202816801U (en) | 2012-08-20 | 2012-08-20 | AC vacuum contactor control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202816801U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346042A (en) * | 2013-07-18 | 2013-10-09 | 浙江中凯科技股份有限公司 | Electromagnetic system energy-saving device with compensation functions |
-
2012
- 2012-08-20 CN CN2012204126306U patent/CN202816801U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346042A (en) * | 2013-07-18 | 2013-10-09 | 浙江中凯科技股份有限公司 | Electromagnetic system energy-saving device with compensation functions |
| CN103346042B (en) * | 2013-07-18 | 2015-06-24 | 浙江中凯科技股份有限公司 | Electromagnetic system energy-saving device with compensation functions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160711 Address after: Xinba Daquan 212211 Yangzhong Road, Zhenjiang City, Jiangsu province 66 Patentee after: JIANGSU DAQO KFINE ELECTRIC Co.,Ltd. Address before: 212211 Jiangsu city of Zhenjiang province Yangzhong city science and Technology Park Road Xinba Daquan Daquan Patentee before: Jiangsu Daqo Kaifan Electrical Appliance Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.66 Daquan Road, Xinba Town, Yangzhong City, Zhenjiang City, Jiangsu Province Patentee after: Jiangsu Daquan Kaifan switch Co.,Ltd. Address before: No.66 Daquan Road, Xinba Town, Yangzhong City, Zhenjiang City, Jiangsu Province Patentee before: JIANGSU DAQO KFINE ELECTRIC Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130320 |