CN201490758U - Low-voltage dual power supply automatic switching control device - Google Patents
Low-voltage dual power supply automatic switching control device Download PDFInfo
- Publication number
- CN201490758U CN201490758U CN2009202250241U CN200920225024U CN201490758U CN 201490758 U CN201490758 U CN 201490758U CN 2009202250241 U CN2009202250241 U CN 2009202250241U CN 200920225024 U CN200920225024 U CN 200920225024U CN 201490758 U CN201490758 U CN 201490758U
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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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Abstract
一种低压双电源自动投切控制装置，I段母线检测器与控制开关1KQF输出端相连，控制开关1KQF输入端与I段电源相连，II段母线检测器与控制开关2KQF输出端相连，控制开关2KQF输入端与II段电源相连，I段母线检测器的1号输出端子与继电器1KA相连，I段母线检测器的2号输出端子与继电器2KA相连，II段母线检测器的1号端子与继电器3KA相连，II段母线检测器的2号端子与继电器4KA相连，控制电源切换继电器KA的1号端子与I段、II段母线检测器的COM端子相连，控制电源切换继电器KA的2号端子与出口继电器1KA、2KA、3KA、4KA相连。可以实现电源开关与母联开关的全自动切换，自动化程度高，具有显著的经济效益和社会效益。
A low-voltage dual power supply automatic switching control device, the I-section bus detector is connected to the 1KQF output end of the control switch, the 1KQF input end of the control switch is connected to the I-section power supply, the II-section bus detector is connected to the 2KQF output end of the control switch, and the control switch The 2KQF input terminal is connected to the power supply of Section II, the No. 1 output terminal of the bus detector of Section I is connected to the relay 1KA, the No. 2 output terminal of the bus detector of Section I is connected to the relay 2KA, and the No. 1 terminal of the bus detector of Section II is connected to the relay 3KA is connected, the No. 2 terminal of the bus detector of the II section is connected with the relay 4KA, the No. 1 terminal of the control power switching relay KA is connected with the COM terminal of the I and II bus detectors, and the No. 2 terminal of the control power switching relay KA is connected with the The outlet relays 1KA, 2KA, 3KA, 4KA are connected. It can realize the fully automatic switching between the power switch and the bus tie switch, with a high degree of automation and significant economic and social benefits.
Description
One, technical field
The utility model belongs to electricity supply and use equipment, particularly a kind of low-voltage dual power automatic switching control device.
Two, background technology
In important load electric power systems such as meeting-place, school and industrial and mining enterprises, generally adopt 10KV line powering pattern twice, 2 of installing 10KV/400V volt main transformers, low-voltage distribution chamber installing two-way mains switch and a middle bus connection switch, constitute the powering mode of sectionalized single busbar connection, when a side power failure, need open failure side mains switch, bus connection switch in the middle of closing, fault needs to disconnect bus connection switch again after disappearing, again the power turn-on switch.Present this control mode realizes by the auxiliary contact of relay and switch mostly; its control loop is simple in structure; low and the function of automaticity is imperfection very; do not possess overvoltage, high voltage open-phase protection function and auto restore facility; can't realize the full-automatic switching of mains switch and bus connection switch; unattended work is pind down, and Gong Dian reliability is relatively poor simultaneously, and tripping and malfunction phenomenon easily take place.
Three, summary of the invention
The purpose of this utility model is a kind of low-voltage dual power automatic switching control device of design, can accurately detect the three-phase voltage quality of I, II section power supply, the electric voltage exception (dead electricity, overvoltage, under-voltage, phase shortage) that occurs is made judgement accurately, and drop into automatically and excise according to testing result control mains switch and bus connection switch.Have automaticity height, good reliability, construction maintenance characteristics easily simultaneously.
The purpose of this utility model is achieved in that it comprises I section mains switch 1QF, II section mains switch 2QF and bus connection switch 3QF, device also comprises I section bus detector, II section bus detector, control power transfer relay KA, I section bus detector links to each other with control switch 1KQF output, control switch 1KQF input links to each other with I section power supply, II section bus detector links to each other with control switch 2KQF output, control switch 2KQF input links to each other with II section power supply, No. 1 lead-out terminal of I section bus detector links to each other with relay 1KA, No. 2 lead-out terminals of I section bus detector link to each other with relay 2KA, No. 1 terminal of II section bus detector links to each other with relay 3KA, No. 2 terminals of II section bus detector link to each other with relay 4KA, No. 1 terminal of control power transfer relay KA and I section, the COM terminal of II section bus detector links to each other, No. 2 terminals of control power transfer relay KA and exit relay 1KA, 2KA, 3KA, 4KA links to each other.
The beneficial effects of the utility model are: full-automatic reliable switching of realizing mains switch and bus connection switch by the control power transfer relay; do not need manually on duty; the automaticity height; defencive function is complete; good reliability; improve the quality of power supply of low-voltage dual power electric power system, had remarkable economic efficiency and social benefit.
Four, description of drawings
Accompanying drawing is an electrical block diagram of the present utility model.
Five, embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described.
Embodiment of the present utility model is made of mains switch 1QF, 2QF and bus connection switch 3QF, I section bus detector, II section bus detector, control power transfer relay KA, exit relay KA 1, KA2, KA3, KA4, control switch 1KQF, a 2KQF.
I section bus detector links to each other with control switch 1KQF output, and control switch 1KQF input links to each other with I section power supply, provides sampling voltage to I section bus detector.II section bus detector links to each other with control switch 2KQF output, and control switch 2KQF input links to each other with II section power supply, provides sampling voltage to II section bus detector; No. 1 lead-out terminal of I section bus detector links to each other with exit relay 1KA, No. 2 lead-out terminals of I section bus detector link to each other with exit relay 2KA, exit relay 2KA gets electronic work during I section power failure, disconnect I section mains switch 1QF, the bus connection switch 3QF that closes, after I section power failure disappeared, exit relay 1KA got electronic work, disconnect bus connection switch 3QF, the I section of closing mains switch 1QF.No. 1 terminal of II section bus detector links to each other with exit relay 3KA, No. 2 terminals of II section bus detector link to each other with exit relay 4KA, exit relay 4KA gets electronic work during II section power failure, disconnect II section mains switch 2QF, the bus connection switch 3QF that closes, after II section power failure disappeared, exit relay 3KA got electronic work, disconnect bus connection switch 3QF, the II section of closing mains switch 2QF.No. 1 terminal of control power transfer relay KA links to each other with the COM terminal of I section, II section bus detector, No. 2 terminals of control power transfer relay KA link to each other with exit relay 1KA, 2KA, 3KA, 4KA, obtain continual control power supply to guarantee control circuit.
Claims (1)
1. low-voltage dual power automatic switching control device, it comprises I section mains switch 1QF, II section mains switch 2QF and bus connection switch 3QF, it is characterized in that: device also comprises I section bus detector, II section bus detector, control power transfer relay KA, I section bus detector links to each other with control switch 1KQF output, control switch 1KQF input links to each other with I section power supply, II section bus detector links to each other with control switch 2KQF output, control switch 2KQF input links to each other with II section power supply, No. 1 lead-out terminal of I section bus detector links to each other with relay 1KA, No. 2 lead-out terminals of I section bus detector link to each other with relay 2KA, No. 1 terminal of II section bus detector links to each other with relay 3KA, No. 2 terminals of II section bus detector link to each other with relay 4KA, No. 1 terminal of control power transfer relay KA and I section, the COM terminal of II section bus detector links to each other, No. 2 terminals of control power transfer relay KA and exit relay 1KA, 2KA, 3KA, 4KA links to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202250241U CN201490758U (en) | 2009-08-20 | 2009-08-20 | Low-voltage dual power supply automatic switching control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202250241U CN201490758U (en) | 2009-08-20 | 2009-08-20 | Low-voltage dual power supply automatic switching control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201490758U true CN201490758U (en) | 2010-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202250241U Expired - Fee Related CN201490758U (en) | 2009-08-20 | 2009-08-20 | Low-voltage dual power supply automatic switching control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201490758U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101969225A (en) * | 2010-11-01 | 2011-02-09 | 河南电力试验研究院 | Dual-circuit automatic mutual-switching power system without break points |
| CN102790426A (en) * | 2012-06-29 | 2012-11-21 | 宝钢不锈钢有限公司 | Improved spare power source automatic switch method for single bus sectionalized operation of power substation |
| CN106026347A (en) * | 2016-07-14 | 2016-10-12 | 武汉长兴电器发展有限公司 | AC automatic bus transfer system applied to rail transit |
| CN106410950A (en) * | 2016-06-03 | 2017-02-15 | 国网山东省电力公司龙口市供电公司 | Power distribution dual-power automatic switching device |
-
2009
- 2009-08-20 CN CN2009202250241U patent/CN201490758U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101969225A (en) * | 2010-11-01 | 2011-02-09 | 河南电力试验研究院 | Dual-circuit automatic mutual-switching power system without break points |
| CN102790426A (en) * | 2012-06-29 | 2012-11-21 | 宝钢不锈钢有限公司 | Improved spare power source automatic switch method for single bus sectionalized operation of power substation |
| CN106410950A (en) * | 2016-06-03 | 2017-02-15 | 国网山东省电力公司龙口市供电公司 | Power distribution dual-power automatic switching device |
| CN106026347A (en) * | 2016-07-14 | 2016-10-12 | 武汉长兴电器发展有限公司 | AC automatic bus transfer system applied to rail transit |
| CN106026347B (en) * | 2016-07-14 | 2019-04-23 | 武汉长兴电器发展有限公司 | One kind being applied to rail traffic and exchanges spare power automatic switching system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20110820 |