CN1379526A - Three-power source automatic switching conversion monitoring screen - Google Patents
Three-power source automatic switching conversion monitoring screen Download PDFInfo
- Publication number
- CN1379526A CN1379526A CN01112513A CN01112513A CN1379526A CN 1379526 A CN1379526 A CN 1379526A CN 01112513 A CN01112513 A CN 01112513A CN 01112513 A CN01112513 A CN 01112513A CN 1379526 A CN1379526 A CN 1379526A
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- Prior art keywords
- power
- generator
- circuit
- supply
- generators
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 9
- 238000012544 monitoring process Methods 0.000 title abstract 4
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 claims description 19
- 238000005070 sampling Methods 0.000 claims description 10
- 230000000977 initiatory effect Effects 0.000 claims description 8
- 230000001360 synchronised effect Effects 0.000 claims description 8
- 230000000737 periodic effect Effects 0.000 claims description 4
- 238000004458 analytical method Methods 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- 238000003869 coulometry Methods 0.000 claims 1
- 238000011084 recovery Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Classifications
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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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- Supply And Distribution Of Alternating Current (AREA)
Abstract
The three-power-supply automatic switching conversion monitoring screen is characterized in that two generators generate power simultaneously when the mains supply is in power failure, one of the two generators is selected by a preferred circuit of a main generator and a standby generator to continuously operate to generate power, an execution mechanism automatically switches to supply power to a load, the standby generator generates power to supply power to the load when the main generator fails, an exhaust fan works to adjust the air in a generator room when the generators generate power, a circulating working circuit controls the working time of the two generators according to preset settings, the execution mechanism automatically switches to the mains supply position when the mains supply is recovered to be normal and supplies power to the load through the mains supply, the whole process is automatically completed, the power recovery time after power failure is shortened, the occurrence of power supply failure is avoided, the labor intensity is relieved, and the three-power-supply automatic switching conversion monitoring screen is the most ideal uninterruptible power supply monitoring screen.
Description
The present invention relates to a kind of electrical switchgear, particularly a kind of electrical switchgear of self energizing.
At present, general telecommunication apparatus adopts duplicate supply from changing switch cubicle load to be powered, and wherein one the tunnel is mains supply, and another road is a generator power supply; When mains supply had electricity, mains supply powered to the load, and when mains failure, powered to the load by generator, thereby generator must be in serviceable condition all the time.For the higher occasion of power reguirements, often do not reach requirement as employing dual power supplies such as communication, hospital, military affairs, scientific researches, normal one road mains supply that adopts is made main power source, the two-way generator power supply is made stand-by power supply, for example, and the 6000 serial control system that Britain Weir letter company sells, its operation principle is: when commercial power supply stops, city's electric loading switches to close a floodgate to be opened, and adds the time that reaches adjustable time lag device, the generating set starting; When unit can bringing onto load, generator load switches to close a floodgate to be shut; After recovering normal a period of time as commercial power supply, the cancellation of startup of unit message, generator load switches to close a floodgate to open to switch to close a floodgate with city's electric loading to be shut.Above-mentioned switch cubicle exists following shortcoming:
1, behind the mains failure, during as first generator starting failure, second generator for electricity generation of delayed firing causes the load restoration power-on time long again.
2, when first gen-set just often, second generator remains static all the time, causes each parts of generator to can not get for a long time lubricating, battery can not get paying, even second generator is out of order and also do not know.
3, two generators can not arbitrarily change primary, sparely, could change by the wiring of operating a switch, and it is unreasonable easily to cause two generators to use.
Recover short to the electric time after the purpose of this invention is to provide a kind of mains failure, exchange is primary, spare automatically for two generating functions, can detect and start three power switchovers of switching automatically and cut the change over switch cabinet.
The present invention realizes like this, on circuit, be provided with the input of three power supplys, two cover synchronizing signals samplings, detect setting signal and allow/forbid starting circuit and change over switch actuator, and be provided with double-generator synchronous initiation signal circuit and the preferred control circuit of active and standby generator, default master and stand-by circuits, protective circuit etc.; Double-generator synchronous initiation signal circuit is by allowing/forbid two generators of starting circuit starting, and by allowing/forbid starting circuit to close wherein stand-by generator, signal control circuit switches K by switching mechanism to the preferred control circuit of active and standby generator again
1, K
2Power to the load; Ventilating fan starting circuit starting machine room ventilating fan work in the time of the stand-by generator generating; All be under the normal condition at two stand-by generators, the periodic duty circuit can be according to preestablishing two generator operating times of control.
Below in conjunction with accompanying drawing the present invention is further described.
Accompanying drawing is a circuit block diagram of the present invention.
When mains supply just often, through synchronizing signal sampling 1, detect set 1, signal control circuit 1, change over switch actuator 1 switch K
1, make K
1At A and I on-position, civil power is imported through civil power
Power to the load.When mains failure, synchronizing signal sampling 1 is setting signal control time-delay after testing, send starting order to double-generator synchronous initiation signal circuit, again by the double-generator synchronous signal circuit to allowing/forbid starting circuit 1 and allowing/forbid starting circuit 2 to send initiating signal simultaneously, two generator while starting-generatings, the work of the machine room of ventilating fan starting circuit starting simultaneously ventilating fan; The electric weight that is sent by 2 pairs of two generators of synchronizing signal sampling is taken a sample again, set 2 after testing, signal control circuit 2 is sent to the preferred control circuit of active and standby generator, the preferred control circuit of active and standby generator carries out intelligent detection and analysis to the signal of sending here, selecting to meet the generator of presetting the electric weight requirement on the one hand is that main generator continues the operation generating, send on the other hand and close stand-by generator and give and to be allowed/to forbid to start 1, or allow/forbid to start 2 and close stand-by generator and transmit signal more on the one hand and switch K for change over switch actuator 2
2, make K
2Switch on the position of source that meets the electric weight requirement; All meet the requirements as two generator power supply electric weight, the preferred control circuit of active and standby generator selects predefined main generator to do the operation generating, closes predefined stand-by generator; All be under the normal condition at two stand-by generators, the periodic duty circuit can be according to preestablishing two generator operating times of control.How preestablishing No. 1 generator is main generator, No. 2 generators are stand-by generator, they are achieved in that when two generator power supplies all meet preset requirement, the preferred control circuit of active and standby generator is to allowing/forbid starting circuit to send signal, make No. 1 generator continue the operation generating, close No. 2 generator instructions to allowing/forbid starting circuit 2 to send on the other hand, after closing No. 2 generators, make No. 2 generators be in the one-level armed state, transmit signal more on the one hand and switch K for change over switch actuator 2
2, make K
2At II and B on-position, at this moment, synchronizing signal sampling 1 is taken a sample, and sets 1 after testing, signal control circuit 1 sends to cut to change over switch actuator 1 changes instruction, thereby makes K
1Switch to B ' and the position that A connects, No. 1 generator power supply is imported through No. 1 generator power supply
Power to the load; In service, when No. 1 generator also breaks down,, to allowing/forbid starting circuit 2 to send signal, start No. 2 generator for electricity generation through the preferred control circuit of active and standby generator by synchronizing signal sampling 2, detection setting 2, signal control circuit 2; Synchronizing signal sampling 2, detection setting 2, signal circuit 2 week conversion switch actuator 2 send and switch K
2Instruction makes K
2Switch to the position that III and B connect; At this moment, synchronizing signal sample circuit 1 sampling sets 1 after testing, signal control circuit 1 sends instruction to change over switch actuator 1, makes K
1Switch in II/III and A on-position, No. 2 generator power supply inputs
Power to the load, also can send No. 1 generator failure of alarm indication simultaneously.
When the city power recovery just often, synchronizing signal sampling 1 sets 1 after testing, signal control circuit 1 sends switching signal to change over switch actuator 1 on the one hand, makes K
1Switch to the position that I and A connect, mains supply is imported through civil power
Power to the load, send signal on the other hand double-generator synchronous initiation signal circuit, through allowing/forbid starting circuit 1 and allow/forbid starting circuit 2, No. 1, No. 2 generators of time-delay closing are ready No. 1, No. 2 generators simultaneously simultaneously.
Claims (6)
1, a kind ofly cuts the change over switch cabinet by three power switchovers that allow/forbid starting circuit 1 and allow/forbid starting circuit 2 to be formed, it is characterized in that on circuit, being provided with the input of three power supplys, two cover synchronizing signals samplings, detect setting signal and allow/forbid starting circuit and change over switch actuator, and be provided with double-generator synchronous initiation signal circuit and the preferred control circuit of active and standby generator, default master and stand-by circuits, protective circuit etc.; Double-generator synchronous initiation signal circuit is by allowing/forbid two generators of starting circuit starting, and by allowing/forbid starting circuit to close wherein stand-by generator, signal control circuit switches K by switching mechanism to the preferred control circuit of active and standby generator again
1, K
2Power to the load; Ventilating fan starting circuit starting ventilating fan work in the time of the stand-by generator generating; All be under the normal condition at two stand-by generators, the periodic duty circuit can be according to preestablishing two generator operating times of control.
2, three power switchovers according to claim 1 are cut the conversion monitor screen, it is characterized in that the preferred control circuit of active and standby generator has two generator power supplies are carried out coulometric analysis, Intelligence Selection.
3, three power switchovers according to claim 1 are cut the conversion monitor screen, it is characterized in that double-generator synchronous initiation signal circuit can be controlled to allow/forbid starting circuit 1, allow/forbid starting circuit 2, thereby start No. 1 generator and No. 2 generators simultaneously.
4, three power switchovers according to claim 1 are cut the conversion monitor screen, it is characterized in that presetting active and standby circuit and can determine active and standby generator artificially.
5, three power switchovers according to claim 1 are cut the conversion monitor screen, it is characterized in that the ventilating fan starting circuit is the automatic control switch circuit.
6, three power switchovers according to claim 1 are cut the conversion monitor screen, it is characterized in that the periodic duty circuit can determine every generator operating time artificially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01112513A CN1379526A (en) | 2001-03-29 | 2001-03-29 | Three-power source automatic switching conversion monitoring screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01112513A CN1379526A (en) | 2001-03-29 | 2001-03-29 | Three-power source automatic switching conversion monitoring screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1379526A true CN1379526A (en) | 2002-11-13 |
Family
ID=4659299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01112513A Pending CN1379526A (en) | 2001-03-29 | 2001-03-29 | Three-power source automatic switching conversion monitoring screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1379526A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101860075A (en) * | 2010-05-28 | 2010-10-13 | 上海龙净环保科技工程有限公司 | Three-power supply automatic switching device |
| CN102163873A (en) * | 2011-04-26 | 2011-08-24 | 广东康菱动力科技有限公司 | Spare electric system for precise manufacturing industry and power supply method thereof |
| CN104518718A (en) * | 2013-10-01 | 2015-04-15 | 日本车辆制造株式会社 | Engine power generation system |
| CN106602706A (en) * | 2016-12-30 | 2017-04-26 | 安徽长龙电气集团有限公司 | Generator switching and refueling control system and control method |
| CN107658963A (en) * | 2017-09-21 | 2018-02-02 | 嘉兴恒创电力设计研究院有限公司嘉善分公司 | A kind of electric substation's stand-by power supply control cabinet |
| CN109964823A (en) * | 2019-04-11 | 2019-07-05 | 广西扬翔股份有限公司 | The control method and emergency system of emergency system |
| CN111244936A (en) * | 2019-12-28 | 2020-06-05 | 安徽中研电气有限责任公司 | Dual-power switching box |
-
2001
- 2001-03-29 CN CN01112513A patent/CN1379526A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101860075A (en) * | 2010-05-28 | 2010-10-13 | 上海龙净环保科技工程有限公司 | Three-power supply automatic switching device |
| CN102163873A (en) * | 2011-04-26 | 2011-08-24 | 广东康菱动力科技有限公司 | Spare electric system for precise manufacturing industry and power supply method thereof |
| CN102163873B (en) * | 2011-04-26 | 2014-05-07 | 广东康菱动力科技有限公司 | Spare electric system for precise manufacturing industry and power supply method thereof |
| CN104518718A (en) * | 2013-10-01 | 2015-04-15 | 日本车辆制造株式会社 | Engine power generation system |
| CN104518718B (en) * | 2013-10-01 | 2017-05-03 | 日本车辆制造株式会社 | engine power generation system |
| CN106602706A (en) * | 2016-12-30 | 2017-04-26 | 安徽长龙电气集团有限公司 | Generator switching and refueling control system and control method |
| CN106602706B (en) * | 2016-12-30 | 2023-11-28 | 安徽长龙电气集团有限公司 | Generator switching and oiling control system and control method |
| CN107658963A (en) * | 2017-09-21 | 2018-02-02 | 嘉兴恒创电力设计研究院有限公司嘉善分公司 | A kind of electric substation's stand-by power supply control cabinet |
| CN107658963B (en) * | 2017-09-21 | 2024-06-07 | 嘉兴恒创电力设计研究院有限公司嘉善分公司 | Standby power supply control box for substation |
| CN109964823A (en) * | 2019-04-11 | 2019-07-05 | 广西扬翔股份有限公司 | The control method and emergency system of emergency system |
| CN111244936A (en) * | 2019-12-28 | 2020-06-05 | 安徽中研电气有限责任公司 | Dual-power switching box |
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