CN202975885U - Program control AC (Alternate Current) constant-current power supply - Google Patents
Program control AC (Alternate Current) constant-current power supply Download PDFInfo
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- CN202975885U CN202975885U CN 201220601154 CN201220601154U CN202975885U CN 202975885 U CN202975885 U CN 202975885U CN 201220601154 CN201220601154 CN 201220601154 CN 201220601154 U CN201220601154 U CN 201220601154U CN 202975885 U CN202975885 U CN 202975885U
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Abstract
The utility model relates to a program control AC (Alternate Current) constant-current power supply which comprises an AC input end, a current transformer, a current output end, a rough regulation voltage regulator, a fine regulation voltage regulator, an AC power distribution unit, a rough regulation motor control transmission unit, a fine regulation motor control transmission unit, a current sampling unit, a microcomputer control unit and a human-computer interface. The program control AC constant-current power supply has the beneficial effects that the program control AC constant-current power supply has complete functions and is simple to operate; accuracy of outputting a current is improved; stability and reliability are improved; and digitization and intellectualization are implemented.
Description
Technical field
The utility model relates to field of power, and is especially a kind of for the specific currents thermal effect is used and the program control constant-current supply that exchanges of test site carrying out.
Background technology
At present, along with the development of power industry, in distribution network, various low-voltage electrical basic device demands roll up.The reliability height of element directly affects the reliability height of system, is therefore very necessary and significant to the fail-test of element.The ac current source that traditional interchange constant-current supply generally is comprised of alternating current steady voltage plug, pressure regulator, large three equipment of electric current converter, this scheme is due to temperature variation, the copper resistance of wire, joint and coil etc. is changing always, operating personnel must often regulate pressure regulator and come steady current, the time-consuming energy that takes, and precision can't guarantee.Also occurred some on market and be used at the program control constant-current supply that exchanges that carries out the application of specific currents thermal effect and test site, but these program control interchange constant-current supply output current precision are relatively poor, stability and reliability are relatively poor.
The utility model content
The utility model will solve the problem that above-mentioned prior art exists, and a kind of program control interchange constant-current supply is provided, and is multiple functional, simple to operate, improved the precision of output current, improved stability and reliability, realized intellectuality.
The utility model solves the technical scheme that its technical matters adopts: this program control interchange constant-current supply, comprise ac input end, current transformer and current output terminal, also comprise coarse adjustment pressure regulator, fine setting pressure regulator, Alternating Current Unit, coarse adjustment Electric Machine Control gear unit, fine setting Electric Machine Control gear unit, current sampling unit, microcomputer control unit, man-machine interface;
the input end of Alternating Current Unit is connected with ac input end, the output terminal of Alternating Current Unit is connected with the input end of coarse adjustment pressure regulator, the output terminal of coarse adjustment pressure regulator is connected with the input end of fine setting pressure regulator, the output terminal of fine setting pressure regulator is connected with the input end of current transformer, coarse adjustment pressure regulator control end is connected with coarse adjustment Electric Machine Control gear unit output terminal, fine setting pressure regulator control end is connected with fine setting Electric Machine Control gear unit output terminal, the output terminal of current transformer respectively with current output terminal, the input end of current sampling unit connects, the input end of coarse adjustment Electric Machine Control gear unit, the input end of fine setting Electric Machine Control gear unit, the output terminal of current sampling unit is connected with microcomputer control unit respectively, microcomputer control unit is connected with man-machine interface.
Microcomputer control unit is Programmable Logic Controller PLC.
Man-machine interface is touch LCD screen.
Principle of work of the present utility model is: main circuit is comprised of Alternating Current Unit, coarse adjustment pressure regulator, fine setting pressure regulator, converter.Coarse adjustment Electric Machine Control gear unit receives the result of microcomputer control unit information processing, controlling the coarse adjustment pressure regulator makes the approaching roughly electric current of setting of AC power output current keep constant, afterwards, fine setting Electric Machine Control gear unit receives the result of microcomputer control unit information processing, controls the fine setting pressure regulator and makes the AC power output current for setting electric current and keeping constant.Current sampling unit Real Time Monitoring AC power electric current output situation is also crossed data bus with information exchange and is sent into microcomputer control unit.The microcomputer control unit Real Time Monitoring exchanges the data of constant-current supply, with the fieldbus mode to AC system carry out information acquisition, the intelligent management of finishing dealing with, the result of information processing will as the information source of man-machine interface touch LCD screen, be passed to the hind computation crane monitoring system by communication interface and be realized remote monitoring and administration on the one hand on the other hand.
The utility model is take microcomputer control unit as exchanging the data processing centre (DPC) of constant-current supply, with the fieldbus mode to AC system carry out information acquisition, the intelligent management of finishing dealing with, the result of information processing will as the information source of man-machine interface touch LCD screen, be passed to the hind computation crane monitoring system by communication interface and be realized remote monitoring and administration on the one hand on the other hand.
The effect that the utility model is useful is: program control interchange constant-current supply of the present utility model, and multiple functional, simple to operate, improved the precision of output current, improved stability and reliability, realized digitizing and intellectuality.
Description of drawings
Fig. 1 is the theory diagram of the utility model embodiment.
Description of reference numerals: ac input end 1, current transformer 2, current output terminal 3, coarse adjustment pressure regulator 4, fine setting pressure regulator 5, Alternating Current Unit 6, coarse adjustment Electric Machine Control gear unit 7, fine setting Electric Machine Control gear unit 8, current sampling unit 9, microcomputer control unit 10, man-machine interface 11.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
With reference to accompanying drawing: the program control interchange constant-current supply in the present embodiment, this program control interchange constant-current supply, comprise ac input end 1, current transformer 2 and current output terminal 3, also comprise coarse adjustment pressure regulator 4, fine setting pressure regulator 5, Alternating Current Unit 6, coarse adjustment Electric Machine Control gear unit 7, fine setting Electric Machine Control gear unit 8, current sampling unit 9, microcomputer control unit 10, man-machine interface 11;
the input end of Alternating Current Unit 6 is connected with ac input end 1, the output terminal of Alternating Current Unit 6 is connected with the input end of coarse adjustment pressure regulator 4, the output terminal of coarse adjustment pressure regulator 4 is connected with the input end of fine setting pressure regulator 5, the output terminal of fine setting pressure regulator 5 is connected with the input end of current transformer 2, coarse adjustment pressure regulator 4 control ends are connected with coarse adjustment Electric Machine Control gear unit 7 output terminals, fine setting pressure regulator 4 control ends are connected with fine setting Electric Machine Control gear unit 8 output terminals, the output terminal of current transformer 2 respectively with current output terminal 3, the input end of current sampling unit 9 connects, the input end of coarse adjustment Electric Machine Control gear unit 7, the input end of fine setting Electric Machine Control gear unit 8, the output terminal of current sampling unit 9 is connected with microcomputer control unit 10 respectively, microcomputer control unit is connected 11 with 10 man-machine interfaces.
Man-machine interface 11 is touch LCD screen.
Principle of work of the present utility model is: main circuit is comprised of Alternating Current Unit 6, coarse adjustment pressure regulator 4, fine setting pressure regulator 5, converter 2.Coarse adjustment Electric Machine Control gear unit 7 receives the result of microcomputer control unit information processing, controlling coarse adjustment pressure regulator 4 makes the approaching roughly electric current of setting of AC power output current keep constant, afterwards, fine setting Electric Machine Control gear unit 8 receives the result of microcomputer control unit information processing, controls fine setting pressure regulator 5 and makes the AC power output current for setting electric current and keeping constant.Current sampling unit 9 Real Time Monitoring AC power electric current output situations are also crossed data bus with information exchange and are sent into microcomputer control unit.Microcomputer control unit 10 Real Time Monitorings exchange the data of constant-current supply, with the fieldbus mode to AC system carry out information acquisition, the intelligent management of finishing dealing with, the result of information processing will as the information source of man-machine interface 11 touch LCD screens, be passed to the hind computation crane monitoring system by communication interface and be realized remote monitoring and administration on the one hand on the other hand.
Characteristics of the present utility model are: the utility model is take microcomputer control unit 10 as exchanging the data processing centre (DPC) of constant-current supply, with the fieldbus mode to AC system carry out information acquisition, the intelligent management of finishing dealing with, the result of information processing will as the information source of man-machine interface 11 touch LCD screens, be passed to the hind computation crane monitoring system by communication interface and be realized remote monitoring and administration on the one hand on the other hand.
The utility model integrates computing machine, communication, automatically controls multiple advanced technology, solved the shortcoming that insurmountable copper resistance temperature rise in the conventional art causes current drift, improve precision, accelerated verification speed, and realized total digitalization and the networking control of constant current output.
Although the utility model illustrates and describes by the reference preferred embodiment,, those skilled in the art should understand, and in the scope of claims, can do the various variation on form and details.
Claims (3)
1. program control interchange constant-current supply, comprise ac input end (1), current transformer (2) and current output terminal (3), it is characterized in that: also comprise coarse adjustment pressure regulator (4), fine setting pressure regulator (5), Alternating Current Unit (6), coarse adjustment Electric Machine Control gear unit (7), fine setting Electric Machine Control gear unit (8), current sampling unit (9), microcomputer control unit (10), man-machine interface (11);
the input end of described Alternating Current Unit (6) is connected with ac input end (1), the output terminal of described Alternating Current Unit (6) is connected with the input end of coarse adjustment pressure regulator (4), the output terminal of described coarse adjustment pressure regulator (4) is connected with the input end of fine setting pressure regulator (5), the output terminal of described fine setting pressure regulator (5) is connected with the input end of current transformer (2), described coarse adjustment pressure regulator (4) control end is connected with coarse adjustment Electric Machine Control gear unit (7) output terminal, described fine setting pressure regulator (5) control end is connected with fine setting Electric Machine Control gear unit (8) output terminal, the output terminal of described current transformer (2) respectively with current output terminal (3), the input end of current sampling unit (9) connects, the input end of described coarse adjustment Electric Machine Control gear unit (7), the input end of fine setting Electric Machine Control gear unit (8), the output terminal of current sampling unit (9) is connected with microcomputer control unit (10) respectively, described microcomputer control unit (10) is connected with man-machine interface (11).
2. program control interchange constant-current supply according to claim 1, it is characterized in that: described microcomputer control unit (10) is Programmable Logic Controller PLC.
3. program control interchange constant-current supply according to claim 1 is characterized in that: described man-machine interface (11) is touch LCD screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220601154 CN202975885U (en) | 2012-11-15 | 2012-11-15 | Program control AC (Alternate Current) constant-current power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220601154 CN202975885U (en) | 2012-11-15 | 2012-11-15 | Program control AC (Alternate Current) constant-current power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202975885U true CN202975885U (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220601154 Expired - Lifetime CN202975885U (en) | 2012-11-15 | 2012-11-15 | Program control AC (Alternate Current) constant-current power supply |
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| CN (1) | CN202975885U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103677033A (en) * | 2013-12-15 | 2014-03-26 | 甘肃长城电工电器工程研究院有限公司 | High-current automatic-stabilization control method and system for switching device test |
| CN105044492A (en) * | 2015-06-24 | 2015-11-11 | 温州大学 | Low-voltage electrical complete switch equipment temperature rise test system |
-
2012
- 2012-11-15 CN CN 201220601154 patent/CN202975885U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103677033A (en) * | 2013-12-15 | 2014-03-26 | 甘肃长城电工电器工程研究院有限公司 | High-current automatic-stabilization control method and system for switching device test |
| CN105044492A (en) * | 2015-06-24 | 2015-11-11 | 温州大学 | Low-voltage electrical complete switch equipment temperature rise test system |
| CN105044492B (en) * | 2015-06-24 | 2018-04-10 | 温州大学 | A kind of low-voltage electrical switchgear assembly temperature rise test system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 323900 Zhejiang city of Lishui province Qingtian county bamboo Riverside Road No. 6 oil Street Patentee after: ZHEJIANG SANCHEN ELECTRICAL APPLIANCE CO.,LTD. Address before: 323900 Zhejiang city of Lishui province Qingtian County South Road No. 41 Patentee before: ZHEJIANG SANCHEN ELECTRICAL Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |