CN104953703A - Double-power-supply control box with anti-misoperation function - Google Patents
Double-power-supply control box with anti-misoperation function Download PDFInfo
- Publication number
- CN104953703A CN104953703A CN201510387649.8A CN201510387649A CN104953703A CN 104953703 A CN104953703 A CN 104953703A CN 201510387649 A CN201510387649 A CN 201510387649A CN 104953703 A CN104953703 A CN 104953703A
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- Prior art keywords
- power supply
- strips
- throw
- pole double
- control cabinet
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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
Abstract
The invention discloses a double-power-supply control box with an anti-misoperation function. The control box comprises a box body, wherein a first input/output power supply wiring terminal, a second input/output power supply wiring terminal, a quadrupolar double-throw power supply switch, a third input/output power supply wiring terminal and a leakage protection circuit are arranged in the box body, wherein a standby power supply supplies power through the second input/output power supply wiring terminal and is electrically connected with an input end of the quadrupolar double-throw power supply switch; an outlet end of the quadrupolar double-throw power supply switch is electrically connected with the third input/output power supply wiring terminal through the leakage protection circuit and connected with power supply equipment through the third input/output power supply wiring terminal. Compared with the prior art, the double-power-supply control box with the anti-misoperation function has the advantages as follows: the control box is simple in structure, high in reliability and high in site durability, has a load switch-out protection function and can prevent potential risks caused by misoperation.
Description
Technical field
The present invention relates to power controling box, in particular a kind of duplicate supply control cabinet possessing anti-misoperation function.
Background technology
Electric task is protected at the scene that electric power system often can run into government's occasion, and for improving power supply reliability, field electrical equipment takes two road Power supply modes, and a road is civil power 380/220V, provides main power source; Another road is generator power supply, stand-by as stand-by power supply; Field electrical equipment is by mains-supplied under normal circumstances, once civil power is because of fault or other reasons causes power failure, continues power supply by the operation Switching power of duplicate supply to generator power supply.Because field electrical equipment circumstance complication is lack of standardization, the operation switching of duplicate supply has very large potential safety hazard, and in misoperation situation, easily formation arc short-circuit initiation equipment burnout and personnel come to harm.Under this site environment, research and develop a kind of non-relay system there is the operate a switch equipment of defencive function of on-load seem very necessary,
Common practices, on-the-spot simple with four pole double-throw power supply plug-in strips as active/standby electrical source exchange, method equipment is simple and clear with field connection, and the visible obviously cut-off point of electrical source exchange, meets safe related request, while cost low, equipment maintenance itself is also simple.But because four pole double-throw power supply plug-in strips do not possess arc-suppression function, if there is misoperation, during on-load Switching power, namely produce arc short-circuit, very easily cause the person and equipment to injure.
And the dual power supply automatic switching device provided on the market, there is automation function, electrical source exchange can be carried out by on-load, but three-phase and four-line can not be met switch simultaneously, also do not possess the requirement of visible obviously power supply cut-off point.In addition, this equipment is mostly arranged in low-tension switch cabinet, and as its auxiliary device, secondary connection is complicated, and with around relevant device electric link, equipment price is expensive, therefore, cannot adopt this equipment at the scene environment use.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of duplicate supply control cabinet possessing anti-misoperation function, this Toolbox structure is simple and direct, reliability is high, on-the-spot durability is good; Possess load to operate a switch defencive function, anti-misoperation can cause potential safety hazard.
The present invention is achieved by the following technical solutions: a kind of duplicate supply control cabinet possessing anti-misoperation function, comprise casing, it is characterized in that: built-in first I/O power supply terminal, the second I/O power supply terminal, four pole double-throw power supply plug-in strips, the 3rd I/O power supply terminal and leakage protection circuit in described casing, civil power to be powered input by described first I/O power supply terminal, and is electrically connected with described four pole double-throw power supply plug-in strips; Stand-by power supply to be powered input by the second I/O power supply terminal, and is electrically connected with described four pole double-throw power supply plug-in strips; The leading-out terminal of described four pole double-throw power supply plug-in strips is electrically connected by described leakage protection circuit and the 3rd I/O power supply terminal, is connected with power supply unit by described 3rd I/O power supply terminal.
As the further optimization of such scheme, described leakage protection circuit comprises the first travel switch, the second travel switch, four pole electric leakage air switches, described four pole electric leakage air switches comprise resistance R and test button, leak electricity four of air switch of four outlet terminals and described four poles of described four pole double-throw power supply plug-in strips access that terminal is corresponding to be electrically connected, after the normally closed contact series connection of described first travel switch and described second travel switch, and access test button; After described test button series resistance R, be electrically connected with the leak electricity access terminal of air switch of described four poles.
As the further optimization of such scheme, be provided with the first power supply indicator between described first I/O power supply terminal and described four pole double-throw power supply plug-in strips, between described second I/O power supply terminal and described four pole double-throw power supply plug-in strips, be provided with second source indicator light.
As the further optimization of such scheme, leak electricity between air switch and are provided with the 3rd power supply indicator in described four pole double-throw power supply plug-in strips and described four poles.
As the further optimization of such scheme, an ammeter of connecting between described 3rd I/O power supply terminal and leakage protection circuit.
As the further optimization of such scheme, a described four pole electric leakage air switch voltmeter in parallel.
As the further optimization of such scheme, described casing comprises chamber door, and the left side of described chamber door is provided with the first power supply indicator, second source indicator light and the 3rd power supply indicator, and the right side of described chamber door is provided with ammeter and voltmeter.
As the further optimization of such scheme, described four pole double-throw power supply plug-in strips are provided with operating grip.
As the further optimization of such scheme, described stand-by power supply is generator power supply.
Compared to existing technology, a kind of beneficial effect possessing the duplicate supply control cabinet of anti-misoperation function provided by the invention is embodied in the present invention:
1, a kind of duplicate supply control cabinet possessing anti-misoperation function of the present invention, there is duplicate supply, commonly use as mains-supplied, stand-by power supply is generator powered, electrical source exchange can be carried out according to active load automatic (manually), when civil power power-off, manual operation is switched to stand-by power supply, and can meet the demand that three-phase and four-line switches simultaneously.
2, a kind of duplicate supply control cabinet possessing anti-misoperation function of the present invention; four pole double-throw power supply plug-in strips are connected one four pole electric leakage air switch and two travel switches; ensure that when to draw four pole double-throw power supply plug-in strips in civil power normal power supply situation by mistake; tripping operation before air switch can disconnect prior to plug-in strip head; avoid four pole double-throw power supply plug-in strips produce electric arc and then occur arc short-circuit and the personnel that burn, serve protective effect.
3, a kind of duplicate supply control cabinet possessing anti-misoperation function of the present invention; mains electricity input end is provided with the first power supply indicator; generating feeder ear is provided with second source indicator light; four pole double-throw power supply plug-in strip outputs are provided with the 3rd power supply indicator; in power supply protection process; can according to corresponding indicator light, very clear current power supply input and output situation.
4, a kind of duplicate supply control cabinet possessing anti-misoperation function of the present invention, ingeniously utilizes the creepage protection function of air switch own, realizes protective circuit function under not increasing the secondary component situations such as relay.Structure is simple, and cost expense is low, and plant maintenance is simple, and reliability is high, and on-the-spot durability is strong.
Accompanying drawing explanation
Fig. 1 is a kind of wiring schematic diagram possessing the duplicate supply control cabinet of anti-misoperation function of the present invention.
Fig. 2 is a kind of external structure schematic diagram possessing the duplicate supply control cabinet of anti-misoperation function of the present invention.
Fig. 3 is a kind of internal structure schematic diagram possessing the duplicate supply control cabinet of anti-misoperation function of the present invention.
Embodiment
Elaborate to embodiments of the invention below, the present embodiment is implemented under premised on technical solution of the present invention, give detailed execution mode and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
A kind of wiring schematic diagram possessing the duplicate supply control cabinet of anti-misoperation function of the present invention see Fig. 1-Fig. 3, Fig. 1.Fig. 2 is a kind of external structure schematic diagram possessing the duplicate supply control cabinet of anti-misoperation function of the present invention.Fig. 3 is a kind of internal structure schematic diagram possessing the duplicate supply control cabinet of anti-misoperation function of the present invention.A kind of duplicate supply control cabinet possessing anti-misoperation function of the preferred embodiments of the present invention; comprise casing, built-in first I/O power supply terminal 11, second I/O power supply terminal 12, four pole double-throw power supply plug-in strip the 14, the 3rd I/O power supply terminal 13 and leakage protection circuit in casing.380/220V civil power to be powered input by the first I/O power supply terminal, and is electrically connected with the input of four pole double-throw power supply plug-in strips 14.Generator power supply is powered by the second I/O power supply terminal 12 and is inputted, and is electrically connected with the input of four pole double-throw power supply plug-in strips 14.The leading-out terminal of four pole double-throw power supply plug-in strips 14 is electrically connected by leakage protection circuit and the 3rd I/O power supply terminal 13, is electrically connected by the 3rd I/O power supply terminal and power supply unit.A kind of duplicate supply control cabinet possessing anti-misoperation function of the present invention, has dual power supply, automatically can carry out electrical source exchange according to active load, and can meet the demand that three-phase and four-line switches simultaneously.Wherein, four pole double-throw power supply plug-in strips are provided with operating grip.Staff according to current output situation, can control the closed of four pole double-throw power supply plug-in strips by operating grip and opens.
Wherein, leakage protection circuit comprises the first travel switch 16, second travel switch 17 and four poles electric leakage air switch 15.Four pole electric leakage air switches 15 comprise resistance R and test button 18.Leak electricity four of air switch 15 of four outlet terminals and four poles of four pole double-throw power supply plug-in strips 14 access that terminal is corresponding to be electrically connected, and after the normally closed contact series connection of the first travel switch 16 and the second travel switch 17, and access test button 18; After test button series resistance R, be electrically connected with the leak electricity access terminal of air switch 15 of four poles.
Optimize, whether between the first I/O power supply terminal 11 and four pole double-throw power supply plug-in strips, 14 are provided with the first power supply indicator 21, be used to indicate current power supply and inputted by civil power.Whether between the second I/O power supply terminal 12 and four pole double-throw power supply plug-in strips, 14 are provided with second source indicator light 22, be used to indicate current power supply and inputted by generator powered.Leaking electricity between air switch and are provided with the 3rd power supply indicator 23 between 15 in four pole double-throw power supply plug-in strips 14 and four poles, indicates for showing the current out-put supply that whether provides.
Wherein, a series connection ammeter between the 3rd I/O power supply terminal 13 and four poles electric leakage air switch 15, indicates for output current.A described four pole electric leakage air switch voltmeter in parallel, indicates for output voltage.
Optimize, casing comprises chamber door, and the left side of chamber door is provided with the first power supply indicator 21, second source indicator light 22 and the 3rd power supply indicator 23.The right side of chamber door is provided with ammeter 31 and voltmeter 32.First power supply indicator, second source indicator light and the 3rd power supply indicator are all located on the chamber door of casing, are convenient to staff and observe current power supply input and current power supply output situation.Ammeter and voltmeter correspondence are located on the chamber door of casing, are convenient to electric current and voltage that staff understands current output in time.Wherein, below the right side of chamber door, be provided with an opening, this opening can be passed through outward now by four pole electric leakage air switches 15, be convenient to operated by personnel four pole electric leakage air switch 15.
A kind of operation principle possessing the duplicate supply control cabinet of anti-misoperation function of the present invention: a kind of duplicate supply control cabinet possessing anti-misoperation function of the present invention, on the basis of four pole double-throw power supply plug-in strips, increase by four pole electric leakage air switches, utilize the leak(age) test button on four pole electric leakage air switches, by the first travel switch, test button terminal is connected to after the normally closed contact series connection of the first travel switch, when there is misoperation in a kind of duplicate supply control cabinet use possessing anti-misoperation function of the present invention, under four pole double-throw power supply plug-in strips are positioned at the first I/O power supply terminal output displacement effect originally very little for electric position (or the second I/O power supply terminal exports for electric position) handle, first travel switch (the second travel switch) normally closed contact is closed by being disconnected to, short circuit loop is formed by travel switch second travel switch (the first travel switch) circuit-closing contacts, before four pole double-throw power supply plug-in strip heads do not disconnect, start earth leakage protective device air switch DL tripping operation, not on-load when ensure that four pole double-throw power supply plug-in strip heads disconnect, thus defencive function is played under on-load operates a switch misoperation situation.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.
Claims (9)
1. one kind possesses the duplicate supply control cabinet of anti-misoperation function, comprise casing, it is characterized in that: built-in first I/O power supply terminal, the second I/O power supply terminal, four pole double-throw power supply plug-in strips, the 3rd I/O power supply terminal and leakage protection circuit in described casing, civil power to be powered input by described first I/O power supply terminal, and is electrically connected with described four pole double-throw power supply plug-in strips; Stand-by power supply to be powered input by the second I/O power supply terminal, and is electrically connected with described four pole double-throw power supply plug-in strips; The leading-out terminal of described four pole double-throw power supply plug-in strips is electrically connected by described leakage protection circuit and the 3rd I/O power supply terminal, is connected with power supply unit by described 3rd I/O power supply terminal.
2. a kind of duplicate supply control cabinet possessing anti-misoperation function according to claim 1, it is characterized in that: described leakage protection circuit comprises the first travel switch, the second travel switch and four poles electric leakage air switch, described four pole electric leakage air switches comprise resistance R and test button, leak electricity four of air switch of four outlet terminals and described four poles of described four pole double-throw power supply plug-in strips access that terminal is corresponding to be electrically connected, after the normally closed contact series connection of described first travel switch and described second travel switch, and access test button; After described test button series resistance R, be electrically connected with the leak electricity access terminal of air switch of described four poles.
3. a kind of duplicate supply control cabinet possessing anti-misoperation function according to claim 1, it is characterized in that: between described first I/O power supply terminal and described four pole double-throw power supply plug-in strips, be provided with the first power supply indicator, between described second I/O power supply terminal and described four pole double-throw power supply plug-in strips, be provided with second source indicator light.
4. a kind of duplicate supply control cabinet possessing anti-misoperation function according to claim 2, is characterized in that: leak electricity between air switch and be provided with the 3rd power supply indicator in described four pole double-throw power supply plug-in strips and described four poles.
5. a kind of duplicate supply control cabinet possessing anti-misoperation function according to claim 1, is characterized in that: an ammeter of connecting between described 3rd I/O power supply terminal and leakage protection circuit.
6. a kind of duplicate supply control cabinet possessing anti-misoperation function according to claim 2, is characterized in that: a described four pole electric leakage air switch voltmeter in parallel.
7. a kind of duplicate supply control cabinet possessing anti-misoperation function according to claim 1, it is characterized in that: described casing comprises chamber door, the left side of described chamber door is provided with the first power supply indicator, second source indicator light and the 3rd power supply indicator, and the right side of described chamber door is provided with ammeter and voltmeter.
8. a kind of duplicate supply control cabinet possessing anti-misoperation function according to claim 1, is characterized in that: described four pole double-throw power supply plug-in strips are provided with operating grip.
9. a kind of duplicate supply control cabinet possessing anti-misoperation function according to claim 1, is characterized in that: described stand-by power supply is generator power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510387649.8A CN104953703B (en) | 2015-07-03 | 2015-07-03 | A kind of dual power supply control cabinet for possessing anti-misoperation function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510387649.8A CN104953703B (en) | 2015-07-03 | 2015-07-03 | A kind of dual power supply control cabinet for possessing anti-misoperation function |
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| Publication Number | Publication Date |
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| CN104953703A true CN104953703A (en) | 2015-09-30 |
| CN104953703B CN104953703B (en) | 2017-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510387649.8A Active CN104953703B (en) | 2015-07-03 | 2015-07-03 | A kind of dual power supply control cabinet for possessing anti-misoperation function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106024481A (en) * | 2016-07-25 | 2016-10-12 | 李亮棠 | Isolated grounding device for power-off overhauling and maintenance at low voltage side |
| CN106725834A (en) * | 2016-12-30 | 2017-05-31 | 重庆西山科技股份有限公司 | Automatic identification radio frequency handle and radio frequency operation component |
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| CN204696793U (en) * | 2015-07-03 | 2015-10-07 | 国家电网公司 | A kind of duplicate supply control cabinet possessing anti-misoperation function |
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| US20080265682A1 (en) * | 2007-04-27 | 2008-10-30 | Wei-Han Huang | Leakage current protection circuit |
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| CN106024481A (en) * | 2016-07-25 | 2016-10-12 | 李亮棠 | Isolated grounding device for power-off overhauling and maintenance at low voltage side |
| CN106725834A (en) * | 2016-12-30 | 2017-05-31 | 重庆西山科技股份有限公司 | Automatic identification radio frequency handle and radio frequency operation component |
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| Publication number | Publication date |
|---|---|
| CN104953703B (en) | 2017-09-22 |
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