CN203289181U - Power supply loop - Google Patents
Power supply loop Download PDFInfo
- Publication number
- CN203289181U CN203289181U CN2013202922118U CN201320292211U CN203289181U CN 203289181 U CN203289181 U CN 203289181U CN 2013202922118 U CN2013202922118 U CN 2013202922118U CN 201320292211 U CN201320292211 U CN 201320292211U CN 203289181 U CN203289181 U CN 203289181U
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- CN
- China
- Prior art keywords
- power supply
- power
- supply loop
- contact
- contactor
- 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.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Stand-By Power Supply Arrangements (AREA)
Abstract
Disclosed in the utility model is a power supply loop comprising a first power supply loop and a second power supply loop. A power input terminal of the first power supply loop is connected in series with a first air switch and then is connected with an input terminal of a first isolation transformer; the output terminal of the first isolation transformer is connected in parallel with a first contact and a second contact; and the output terminal of the first isolation transformer is connected in series with normally-open contact points of the first contact and the second contact and then is connected with a power output terminal. A power input terminal of the second power supply loop is connected in series with a second air switch and then is connected to an input terminal of a second isolation transformer; the output terminal of the second isolation transformer is connected in series with normally-closed contact points of the first contact and the second contact and then is connected to the power output terminal. According to the power supply loop provided by the utility model, dual-power supply connection and dual-power supply automatic switching technologies and the power filtering technology are utilized, wherein the dual power supplies include a frequently-used power supply and a standby power supply. And thus stability and reliability of a power supply of an instrument monitoring system can be effectively improved.
Description
Technical field
The utility model relates to the control cubicle field, is specifically related to a kind of power supply for meter control cabinet loop, is applicable to various instrument monitoring control cubicles.
Background technology
Power supply is the power source of all instrument monitoring control cubicle normal operations, it has directly determined stability, correctness, the reliability of instrument monitoring control system, the safety that is related to equipment, thus extremely important in stable, the reliable use at the scene of power supply.But the power supply of existing instrument monitoring control cubicle is all directly to be provided by scene, is subject to the impact of externally fed loop, and stability is low, causes instrument monitoring control system job insecurity, and data fluctuations, even cause damage to measuring instrument.
The utility model content
The purpose of this utility model is to overcome above-mentioned weak point, a kind of power supply for instrument monitoring control cubicle loop is provided, adopt power supply commonly used and the access of stand-by power supply duplicate supply, Dual-power automatic switching technology, the power filter technology, stability and the reliability of raising instrument monitoring system power supply power supply.
The technical solution of the utility model is as follows:
A kind of power supply loop, comprise the first power supply loop and the second power supply loop;
Be connected to the input of the first isolating transformer after power input series connection first air switch in described the first power supply loop, the output of the first isolating transformer is parallel with the first contactor and the second contactor, and the output of the first isolating transformer series connection the first contactor connects power output end with being connected after the normally opened contact of contactor;
Be connected to the input of the second isolating transformer after the power input in described the second power supply loop series connection the second air switch, output series connection first contactor of the second isolating transformer connects power output end with being connected after the normally-closed contact of contactor;
The power output end in described the first power supply loop and the second power supply loop is in parallel.
Useful technique effect of the present utility model is:
The utility model adopts power supply commonly used and the access of stand-by power supply duplicate supply, Dual-power automatic switching technology, and the power filter technology has effectively improved stability and the reliability of instrument monitoring system power supply power supply.
The additional advantage of the utility model provides in embodiment description partly below, and part will become obviously from the following description, or by practice of the present utility model, recognize.
Description of drawings
Fig. 1 is circuit diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further.
As shown in Figure 1, the utility model comprises the first power supply loop A and second power supply loop B two parts.Both power output ends are in parallel, are same end.
Be connected to the input of the first isolating transformer T1 after power input series connection the first air switch SW1 of the first power supply loop A.The output of the first isolating transformer T1 is parallel with the first contactor KM3 and the second contactor KM4.The output of the first isolating transformer T1 series connection the first contactor KM3 connects power output end with being connected after the normally opened contact of contactor KM4.
Be connected to the input of the second isolating transformer T2 after the power input of the second power supply loop B series connection the second air switch SW2, output series connection the first contactor KM3 of the second isolating transformer T2 connects power output end with being connected after the normally-closed contact of contactor KM4.
Operation principle of the present utility model is as follows:
When the 220VAC Power supply of the first power supply loop A is normal, the line band of the first contactor KM3 and the second contactor KM4 electricity, both normally opened contacts are closed, and normally-closed contact disconnects; The instrument cabinet power supply is provided after the first isolating transformer T1 effect by the first power supply loop a-power supply.
When the 220VAC Power supply of the first power supply loop A is abnormal, the line bag dead electricity of the first contactor KM3 and the second contactor KM4, both normally opened contacts disconnect, and normally-closed contact is closed; The instrument cabinet power supply is provided after the second isolating transformer T2 effect by the second power supply loop B-source.
The first isolating transformer T1, the second isolating transformer T2 play protection, lightning protection, filtering.
Above-described is only preferred implementation of the present utility model, and the utility model is not limited to above embodiment.Be appreciated that those skilled in the art directly derive or associate under the prerequisite that does not break away from basic conception of the present utility model other improvement and variation, within all should thinking and being included in protection range of the present utility model.
Claims (1)
1. a power supply loop, is characterized in that, comprises the first power supply loop (A) and the second power supply loop (B);
Be connected to the input of the first isolating transformer (T1) after power input series connection first air switch (SW1) in described the first power supply loop (A), the output of the first isolating transformer (T1) is parallel with the first contactor (KM3) and the second contactor (KM4), and the output of the first isolating transformer (T1) series connection the first contactor (KM3) connects power output end with being connected after the normally opened contact of contactor (KM4);
Be connected to the input of the second isolating transformer (T2) after the power input in described the second power supply loop (B) series connection the second air switch (SW2), output series connection first contactor (KM3) of the second isolating transformer (T2) connects power output end with being connected after the normally-closed contact of contactor (KM4);
The power output end in described the first power supply loop (A) and the second power supply loop (B) is in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202922118U CN203289181U (en) | 2013-05-24 | 2013-05-24 | Power supply loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202922118U CN203289181U (en) | 2013-05-24 | 2013-05-24 | Power supply loop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203289181U true CN203289181U (en) | 2013-11-13 |
Family
ID=49545525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202922118U Expired - Fee Related CN203289181U (en) | 2013-05-24 | 2013-05-24 | Power supply loop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203289181U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009536A (en) * | 2014-06-12 | 2014-08-27 | 鞍钢股份有限公司 | Solar power generation standby power source |
| CN105449839A (en) * | 2015-12-30 | 2016-03-30 | 中国能源建设集团广东省电力设计研究院有限公司 | Isolated type high-speed double-power-supply switching device |
| CN106059053A (en) * | 2016-05-31 | 2016-10-26 | 广州地铁集团有限公司 | Double-power-supply automatic switching device |
| CN110429705A (en) * | 2019-08-29 | 2019-11-08 | 强文 | A kind of integrated type electrical information interactive device of included UPS |
-
2013
- 2013-05-24 CN CN2013202922118U patent/CN203289181U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009536A (en) * | 2014-06-12 | 2014-08-27 | 鞍钢股份有限公司 | Solar power generation standby power source |
| CN105449839A (en) * | 2015-12-30 | 2016-03-30 | 中国能源建设集团广东省电力设计研究院有限公司 | Isolated type high-speed double-power-supply switching device |
| CN106059053A (en) * | 2016-05-31 | 2016-10-26 | 广州地铁集团有限公司 | Double-power-supply automatic switching device |
| CN110429705A (en) * | 2019-08-29 | 2019-11-08 | 强文 | A kind of integrated type electrical information interactive device of included UPS |
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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 | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 272 No. 214422 Jiangsu city of Wuxi province Jiangyin Yunting Street Changshan Avenue Patentee after: Jiangsu Jiang Ling Polytron Technologies Inc Address before: 272 No. 214422 Jiangsu city of Wuxi province Jiangyin Yunting Street Changshan Avenue Patentee before: Jiangyin Jiangling Technology Co., Ltd. |
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| 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: 20131113 Termination date: 20180524 |