CN205791776U - Dual power supply backup auto-activating device - Google Patents
Dual power supply backup auto-activating device Download PDFInfo
- Publication number
- CN205791776U CN205791776U CN201620465064.3U CN201620465064U CN205791776U CN 205791776 U CN205791776 U CN 205791776U CN 201620465064 U CN201620465064 U CN 201620465064U CN 205791776 U CN205791776 U CN 205791776U
- Authority
- CN
- China
- Prior art keywords
- power supply
- mainboard
- commutator
- backup auto
- activating device
- 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.)
- Expired - Fee Related
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Classifications
-
- 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
-
- 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
Landscapes
- Stand-By Power Supply Arrangements (AREA)
Abstract
The utility model discloses a kind of dual power supply backup auto-activating device, relate to electrical safety field, it includes the first mainboard, the second mainboard, the conventional power supply being connected with the first mainboard and the stand-by power supply being connected with the second mainboard.This device also includes the first transformator, the first commutator being connected with the first mainboard, the second transformator and the second commutator being connected with the second mainboard, the two ends of the first transformator are connected with conventional power supply and the first commutator respectively, and the two ends of the second transformator are connected with stand-by power supply and the second commutator respectively.This device also includes power transfer device, and two ends of incoming cables of power transfer device are connected with conventional power supply and stand-by power supply respectively, and its leading-out terminal is connected with load-side by earth leakage protective device.Dual power supply backup auto-activating device includes that auxiliary contact and bis-skies of PT leave, and auxiliary contact two ends are left be connected with power transfer device and bis-skies of PT respectively.This utility model wiring is simple, switching time is short, can improve operation of power networks stability and power supply reliability.
Description
Technical field
This utility model relates to electrical safety field, is specifically related to a kind of dual power supply prepared auto restart dress
Put.
Background technology
Along with the raising day by day of people's productive life level, people are to the demand of electric power and rely on journey
Degree is also in multiplication, and the requirement to the quality of power supply is the strictest, continuous in every field for distribution
Stride forward to automatization, unmanned, remotely control, the target of uninterrupted power supply.
At present, urgent at some, interim electricity consumption occasion is usually provided with dual power supply, i.e. arranges
Conventional power supply and stand-by power supply prevent the generation of the power failure of emergency case.Conventional dual power supply is
The method taking to use electromotor to combine with conventional power supply, this method is carrying out power supply switching
Time there is the shortcomings such as wiring complexity, length switching time, the on-the-spot electricity consumption being unfavorable under emergency case.
If when the most conventional power supply and stand-by power supply all power-off, current backup auto-activating device will be unable to normally
Work.
Additionally, due to design reasons, current backup auto-activating device is merely by judging PT
(Potential transformer, voltage transformer) secondary voltage carrys out action.If PT
Secondary sky is driven (air switch of the secondary side of voltage transformer) and is come off, and certainly will cause prepared auto restart
Error action of device is made, the stability of strong influence operation of power networks and power supply reliability.
Utility model content
For defect present in prior art, the purpose of this utility model is to provide one to connect
Line is simple, switching time is short and can improve the stability of operation of power networks and the double of power supply reliability
Power supply backup auto-activating device.
For reaching object above, this utility model adopts the technical scheme that: a kind of dual power supply is standby
Automatic bus, including the first mainboard, the second mainboard, conventional power supply and stand-by power supply, described the
One mainboard is connected with conventional power supply, and described second mainboard is connected with stand-by power supply, described dual power supply
Backup auto-activating device also includes the first transformator, the first commutator, the second transformator and the second rectification
Device, one end of described first transformator is connected with described conventional power supply, the other end and described first
Commutator is connected, and described first commutator is also connected with described first mainboard, described second transformation
One end of device is connected with described stand-by power supply, and the other end is connected with described second commutator, described
Second commutator is also connected with described second mainboard, and described dual power supply backup auto-activating device also includes electricity
Source switching device, two ends of incoming cables of described power transfer device respectively with described conventional power supply and
Stand-by power supply is connected, and the leading-out terminal of described power transfer device passes through earth leakage protective device and load-side
It is connected, and described dual power supply backup auto-activating device also includes that auxiliary contact and bis-skies of PT leave, institute
State auxiliary contact one end to be connected with described power transfer device, the other end and bis-skies of described PT
Open connected.
On the basis of technique scheme, described dual power supply backup auto-activating device also includes PLC
Controller, described PLC is by described first mainboard and the second mainboard and described power supply
Switching device is connected.
On the basis of technique scheme, described dual power supply backup auto-activating device also includes standby electricity
Pond, described backup battery and described first commutator, the second commutator, the first mainboard, second
Mainboard is connected with PLC.
On the basis of technique scheme, described first transformator and the second transformator are three
Phase transformer.
On the basis of technique scheme, described first commutator and the second commutator are three
Commutating phase device.
Compared with prior art, the utility model has the advantage of:
(1) the dual power supply backup auto-activating device in this utility model, it utilizes power transfer device
Realize conventional power supply, stand-by power supply automatically switches, it is possible to realize switching in zero second, to important load
Can switch in the case of not having a power failure, safe and reliable.
(2) bis-skies of PT are opened with auxiliary by the dual power supply backup auto-activating device in this utility model
Helping contact to combine, access backup auto-activating device, its design loop is simple, it is simple to grasps and operates,
With low cost, it is not necessary to change or increase newly expensive primary equipment, prevent backup auto-activating device by mistake
Action, thoroughly avoids because bis-empty exonerations of PT fall, causes backup auto-activating device misoperation, carry
The stability of high operation of power networks and power supply reliability, social benefit is notable.
(3) the dual power supply backup auto-activating device in this utility model, it is provided with backup battery, from
And can ensure when conventional power supply and stand-by power supply all power-off, backup auto-activating device just can also continue
Often work.
Accompanying drawing explanation
Fig. 1 is the structural representation of dual power supply backup auto-activating device in this utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail.
Shown in Figure 1, this utility model provides a kind of dual power supply backup auto-activating device, including the
One mainboard, the second mainboard, conventional power supply and stand-by power supply, wherein the first mainboard and conventional power supply
Being connected, the second mainboard is connected with stand-by power supply.Dual power supply backup auto-activating device also includes the first transformation
Device, the first commutator, the second transformator and the second commutator, one end of the first transformator and institute
Stating conventional power supply to be connected, the other end and the first commutator are connected, and the first commutator is also with described the
One mainboard is connected.One end of second transformator is connected with stand-by power supply, the other end and the second rectification
Device is connected, and the second commutator is also connected with the second mainboard.Conventional power supply in this utility model or
380V exchange is changed into direct current 24V power supply, direct current through filter circuit of pressure-stabilizing by stand-by power supply
24V power supply is the first mainboard and the second main board power supply.The first transformator in this utility model and
Second transformator is three-phase transformer, and the first commutator and the second commutator are three phase rectifier
Device.
Dual power supply backup auto-activating device also includes power transfer device, and two of power transfer device are entered
Line end is connected with conventional power supply and stand-by power supply respectively, and the leading-out terminal of power transfer device is by leakage
Non-electricity protector is connected with load-side, and the dual power supply backup auto-activating device in this utility model normally makes
When using state, conventional power supply power to load side, when there is dead electricity in conventional power supply, electricity
Source switching device automatically switches to stand-by power supply, makes stand-by power supply start to load side and powers.This
Utility model is by the way of power transfer device realizes double loop power supply switching, it is possible to realize zero
Second switching.Important load can be switched in the case of not having a power failure, safe and reliable.
Additionally, the dual power supply backup auto-activating device in this utility model also includes auxiliary contact and PT
Secondary sky is opened, and auxiliary contact one end is connected with power transfer device, the other end and bis-skies of PT
Open connected.Dual power supply backup auto-activating device in this utility model can collect bis-skies of PT and open
Physical location, and it as a barring condition, it becomes possible to the sending out of Accident prevention reliably
Raw.And auxiliary contact can effectively reflect disconnecting link, the position of the switch, when bis-empty exonerations of PT
Can drive auxiliary contact action while falling, dual power supply backup auto-activating device also can receive auxiliary and connect
The locking order that point is sent so that it is to hauling oneself willingly into condition electric discharge accordingly, reach the mesh of false action-proof
's.
Meanwhile, dual power supply backup auto-activating device of the present utility model also includes PLC, PLC
Controller is connected with power transfer device, such that it is able to pass through by the first mainboard and the second mainboard
PLC controls the action of power transfer device.
Dual power supply backup auto-activating device of the present utility model also includes backup battery, backup battery and
One commutator, the second commutator, the first mainboard, the second mainboard are connected with PLC.
Accordingly even when conventional power supply and stand-by power supply power-off simultaneously, can be still the by backup battery
One mainboard, the second mainboard and PLC are powered, and have ensured the normal fortune of backup auto-activating device
OK.
This utility model is not only limited to above-mentioned preferred forms, and anyone is at this utility model
Enlightenment under all can draw other various forms of products, no matter but in its shape or structure make
Any change, every have same or like with this utility model as technical scheme, all at it
Within protection domain.
Claims (5)
1. a dual power supply backup auto-activating device, including the first mainboard, the second mainboard, conventional electricity
Source and stand-by power supply, described first mainboard is connected with conventional power supply, described second mainboard and standby
Power supply be connected, described dual power supply backup auto-activating device also include the first transformator, the first commutator,
Second transformator and the second commutator, one end of described first transformator and described conventional power supply phase
Even, the other end is connected with described first commutator, and described first commutator is also main with described first
Plate is connected, and one end of described second transformator is connected with described stand-by power supply, and the other end is with described
Second commutator is connected, and described second commutator is also connected with described second mainboard, and its feature exists
In: described dual power supply backup auto-activating device also includes power transfer device, described power transfer device
Two ends of incoming cables be connected with described conventional power supply and stand-by power supply respectively, described power supply switching dress
The leading-out terminal put is connected with load-side by earth leakage protective device, and described dual power supply backup auto-activating device
Also including that auxiliary contact and bis-skies of PT leave, described auxiliary contact one end switches with described power supply
Device is connected, and bis-skies of the other end and described PT are opened and are connected.
2. dual power supply backup auto-activating device as claimed in claim 1, it is characterised in that: described
Dual power supply backup auto-activating device also includes PLC, and described PLC is by described the
One mainboard and the second mainboard are connected with described power transfer device.
3. dual power supply backup auto-activating device as claimed in claim 2, it is characterised in that: described
Dual power supply backup auto-activating device also includes backup battery, described backup battery and described first rectification
Device, the second commutator, the first mainboard, the second mainboard are connected with PLC.
4. dual power supply backup auto-activating device as claimed in claim 1, it is characterised in that: described
First transformator and the second transformator are three-phase transformer.
5. dual power supply backup auto-activating device as claimed in claim 1, it is characterised in that: described
First commutator and the second commutator are three-phase rectifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620465064.3U CN205791776U (en) | 2016-05-19 | 2016-05-19 | Dual power supply backup auto-activating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620465064.3U CN205791776U (en) | 2016-05-19 | 2016-05-19 | Dual power supply backup auto-activating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205791776U true CN205791776U (en) | 2016-12-07 |
Family
ID=58117782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620465064.3U Expired - Fee Related CN205791776U (en) | 2016-05-19 | 2016-05-19 | Dual power supply backup auto-activating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205791776U (en) |
-
2016
- 2016-05-19 CN CN201620465064.3U patent/CN205791776U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20161207 Termination date: 20190519 |