CN205791789U - Power station service power switching device - Google Patents
Power station service power switching device Download PDFInfo
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- CN205791789U CN205791789U CN201620731092.5U CN201620731092U CN205791789U CN 205791789 U CN205791789 U CN 205791789U CN 201620731092 U CN201620731092 U CN 201620731092U CN 205791789 U CN205791789 U CN 205791789U
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- power supply
- switching device
- automatic switching
- power
- switch
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- 230000009977 dual effect Effects 0.000 claims abstract description 89
- 238000009434 installation Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 7
- 230000005611 electricity Effects 0.000 description 10
- 230000002159 abnormal effect Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000012163 sequencing technique Methods 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 239000002283 diesel fuel Substances 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
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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Abstract
This utility model relates to a kind of power station service power switching device, including preferred dual power supply automatic switching device, alternative dual power supply automatic switching device, the first power interface and second source interface, preferably dual power supply automatic switching device connects external power source by the first power interface, and alternative dual power supply automatic switching device connects external power source by second source interface；Preferably dual power supply automatic switching device is for connecting the first power supply and second source；Alternative dual power supply automatic switching device is for connecting preferred dual power supply automatic switching device, the 3rd power supply, load feeder line and the driving means of the 3rd power supply.First power supply and second source are switched over by preferably dual power supply automatic switching device, output voltage and the 3rd power supply of preferred dual power supply automatic switching device are switched over by alternative dual power supply automatic switching device, and power to load feeder line, automatically selecting of power station service power can be realized, simple in construction and take up room little, power supply reliability is high.
Description
Technical field
This utility model relates to technical field of power systems, particularly relates to a kind of power station service power switching device.
Background technology
In the potentiation capacity-expansion project of many small hydropower stations, higher to service power reliability requirement, so one
As take the power supply mode of three-way power, i.e. one tunnel to connect generator bus inlet wire, a road connects exterior line power supply inlet wire and a road
Connecting diesel-driven generator inlet wire, generator bus inlet wire for electrical connection, secondly selects exterior line power supply inlet wire as conventional, and diesel oil is sent out
Motor inlet wire is as last alternative confession electrical connection.
Traditional switching construction realizing three-way power power supply mode (or carries electronic for using three table frame formula choppers
The molded-case switch of operation) and a backup auto-activating device, three table frame formula choppers are respectively used to connect the inlet wire of three-way power, logical
Cross backup auto-activating device and select a certain table frame formula breaker closing in three table frame formula choppers, be this frame-type of selection and break
The electric power incoming line that road device is connected is powered.This traditional switching construction takes up room greatly, and cost of investment is high.
Utility model content
Based on this, it is necessary to for the problems referred to above, it is provided that a kind of volume is little, the power station service power switching dress of low cost
Put.
A kind of power station service power switching device, automatic including preferred dual power supply automatic switching device, alternative dual power supply
Switching device, the first power interface and second source interface；
Described preferred dual power supply automatic switching device connects external power source by described first power interface, described alternative double
Automatic power-supply switch connects external power source by described second source interface, and described preferred dual power supply automatic switching device is used
In the first power supply and the second source in connection power station, described alternative dual power supply automatic switching device is used for connecting described preferred pair
Automatic power-supply switch and the 3rd power supply in described power station, described alternative dual power supply automatic switching device is additionally operable to connect and bears
Carry feeder line and the driving means of the 3rd power supply.
Above-mentioned power station service power switching device, preferably dual power supply automatic switching device are to the first power supply and the second electricity
Source is powered switching, and when at least powering normal at one in the first power supply and second source, output voltage is to the most alternative double electricity
Source automatic switching control equipment, the most alternative dual power supply automatic switching device accesses the voltage of preferred dual power supply automatic switching device output
Load feeder line is powered；Preferably dual power supply automatic switching device is when the first power supply and second source are all stopped power supply, no-voltage
Output controls the driving means of the 3rd power supply to alternative dual power supply automatic switching device, the most alternative dual power supply automatic switching device
Work, accesses the 3rd power supply and powers load feeder line.Automatically cut by preferred dual power supply automatic switching device and alternative dual power supply
First power supply and second source are switched over by the cascade of changing device, preferably dual power supply automatic switching device, and alternative dual power supply is certainly
Output voltage and the 3rd power supply of preferred dual power supply automatic switching device are switched over by dynamic switching device, it is achieved Hydroelectric Plant is used
Automatically selecting of power supply, simple in construction and take up room little, power supply reliability is high.
Accompanying drawing explanation
Fig. 1 is the structure chart of Hydroelectric Plant switching device in an embodiment.
Detailed description of the invention
With reference to Fig. 1, the power station service power switching device in an embodiment, including preferred dual power supply automatic switching device
110, alternative dual power supply automatic switching device the 130, first power interface (not shown) and second source interface (not shown).Preferably
Dual power supply automatic switching device 110 connects external power source by the first power interface, and alternative dual power supply automatic switching device 130 leads to
Cross second source interface and connect external power source.Preferably dual power supply automatic switching device 110 is for connecting first power supply in power station
And second source；Alternative dual power supply automatic switching device 130 is used for connecting preferred dual power supply automatic switching device 110 and power station
The 3rd power supply, alternative dual power supply automatic switching device 130 be additionally operable to connect load feeder line 200 and the 3rd power supply driving dress
Put.
First power supply, second source are the primary power supply in power station, and such as, the first power supply is the generating in power station
Machine, second source is exterior line power supply, and the first power supply and second source drive without power station service power switching device；3rd electricity
Source refers to the back-up power source in power station, such as diesel-driven generator, and power station service power switching device drives and can power.The
The driving means of three power supplys refers to start the device that the 3rd power supply is powered, such as, the driving motor of diesel-driven generator.Alternative double
Automatic power-supply switch 130 connects the driving motor of diesel-driven generator, such that it is able to drive diesel-driven generator to start generating.
Above-mentioned power station service power switching device, preferably dual power supply automatic switching device 110 is to the first power supply and second
Power supply is powered switching, and when at least powering normal at one in the first power supply and second source, output voltage is to the most alternative double
Automatic power-supply switch 130, the most alternative dual power supply automatic switching device 130 accesses preferred dual power supply automatic switching device
The voltage against load feeder line 200 of 110 outputs is powered；Preferably dual power supply automatic switching device 110 is at the first power supply and second source
When all stopping power supply, Non voltage output to alternative dual power supply automatic switching device 130, the most alternative dual power supply automatic switching device
The 130 driving means work controlling the 3rd power supply, access the 3rd power supply and power load feeder line 200.By preferred dual power supply certainly
Dynamic switching device 110 and the cascade of alternative dual power supply automatic switching device 130, preferably dual power supply automatic switching device 110 are to the
One power supply and second source switch over, and alternative dual power supply automatic switching device 130 is to preferred dual power supply automatic switching device 110
Output voltage and the 3rd power supply switch over, it is achieved automatically selecting of power station service power, simple in construction and taking up room
Little, power supply reliability is high.
In one embodiment, preferably dual power supply automatic switching device 110 includes preferably commonly using switch K1, preferred backup circuit breaker
K2 and preferred controller (not shown), the input of preferably conventional switch K1 connects the first power supply, and preferably backup circuit breaker K2's is defeated
Entering end and connect second source, the outfan of preferably conventional switch K1 and preferred backup circuit breaker K2 connects alternative Dual-power automatic switching
Device 130, the control end of preferably conventional switch K1 and preferred backup circuit breaker K2 connects preferred controller, preferably controller and connects the
One power supply and second source, and connect external power source by the first power interface.
Preferably controller is by connecting the first power supply and second source, detects the output electricity of the first power supply and second source
Pressure, under normal circumstances, the preferably conventional switch K1 of control is Guan Bi, preferred backup circuit breaker K2 disconnection；Preferably controller detects
When the output voltage of one power supply is abnormal, the output voltage of second source is normal, the preferably preferably conventional switch K1 of controller control breaks
Open, preferred backup circuit breaker K2 closes, and is now switched to second source by the first power supply and powers；Preferably controller supplies at second source
If output voltage all exceptions of second source detected during electricity, control conventional preferred backup circuit breaker K2 and disconnect.By by first
Power supply connects preferably conventional switch K1, second source connects preferred backup circuit breaker K2, preferably controller according to the first power supply and the
The power supply state of two power supplys controls preferably conventional switch K1 and the opening and closing of preferred backup circuit breaker K2, thus realize with the first power supply-
Second source is the automatic switchover of power supply sequencing, and simple in construction and volume are little.It is appreciated that in other embodiments, also
Can be that second source connects preferably conventional switch K1, the first power supply connects preferred backup circuit breaker K2, sequencing of now powering
For second source the-the first power supply.
And specifically, it is preferable to controller detection output voltage the most normally can use existing known technology to realize, such as
Can compare whether output voltage is more than or equal to preset value, if then representing that output voltage is normal, if otherwise representing, output is electric
Pressure is abnormal.Preferably controller can also switch by using existing known technology to realize time delay, such as, the first power supply detected
Output voltage abnormal after, control after postponing the T1 second to disconnect preferably conventional switch K1, control Guan Bi after the time delay T2 second the most standby
Switch K2.
In the present embodiment, the preferably control mode of controller automatically controls, and specially hauls oneself willingly into from replica, i.e. can be first
Automatically switch to second source during power supply abnormal electrical power supply power, automatically switch to the first power supply when the first power supply service restoration and supply
Electricity.In other embodiments, the preferably control mode of controller can also be adjusted to Non-follow control as required, such as, passes through
Operator scheme switching push button switches at Non-follow control with between automatically controlling.
In one embodiment, alternative dual power supply automatic switching device 130 includes alternative conventional switch K3, alternative backup circuit breaker
K4 and alternate controller (not shown).The input of alternative conventional switch K3 connects preferred dual power supply automatic switching device 110, this
In embodiment, the input of alternative conventional switch K3 is specially and connects preferably conventional switch K1 and the output of preferred backup circuit breaker K2
End.The input of alternative backup circuit breaker K4 connects the 3rd power supply, and the outfan of alternative conventional switch K3 and alternative backup circuit breaker is even
Connecing load feeder line 200, the control end of alternative conventional switch K3 and alternative backup circuit breaker K4 connects alternate controller, alternate controller
Connect driving means and the preferred dual power supply automatic switching device 110 of the 3rd power supply, and alternate controller is connect by second source
Mouth connection external power source.
Alternate controller fills to detect preferred Dual-power automatic switching by connecting preferred dual power supply automatic switching device 110
Put 110 output voltage the most normal.The preferably output voltage of dual power supply automatic switching device 110 is normal, i.e. represents the first electricity
Source powers normally or second source is powered normally, and now, alternative conventional switch K3 closes；Detect the most double at alternate controller
During the output voltage exception of automatic power-supply switch 110, controlling alternative conventional switch K3, output enabling signal is to driving means
To start the 3rd power work, and control alternative backup circuit breaker K4 Guan Bi, thus switch to the 3rd power supply and power.By alternative control
Device processed, the common effect of alternative conventional switch K3 and alternative backup circuit breaker K4 realize the switching of the 3rd power supply, simple in construction and body
Long-pending little.
Specifically, alternate controller detection output voltage the most normally can use existing known technology to realize, such as
Can compare whether output voltage is more than or equal to preset value, if then representing that output voltage is normal, if otherwise representing, output is electric
Pressure is abnormal.Alternate controller can also switch by using existing known technology to realize time delay, such as, detects the most double
Automatic power-supply switch 110 output voltage abnormal after, control after postponing the T3 second to disconnect alternative conventional switch K3, time delay T4
Send after Miao enabling signal to the 3rd power supply driving means start the 3rd power supply power, the output voltage at the 3rd power supply reaches
Control after stationary value to close alternative backup circuit breaker K4.
In the present embodiment, the control model of alternate controller for automatically controlling, alternate controller can also detect excellent
When the output voltage selecting dual power supply automatic switching device 110 recovers normal, control alternative conventional switch K3 Guan Bi, send and shut down letter
Number to the 3rd power supply electric supply installation, control alternative backup circuit breaker K4 disconnect, be switched to by preferred dual power supply automatic switching device
The output voltage of 110 is powered.In other embodiments, the control mode of alternate controller can also be adjusted to manually as required
Control, such as, switched at Non-follow control with between automatically controlling by operator scheme switching push button.
In one embodiment, preferably dual power supply automatic switching device 110 and alternative dual power supply automatic switching device 130 are
CB level (dual-breaker formula) double power supply automatic switching switch.CB level double power supply automatic switching switch has overload and short-circuit protection merit
Can, improve service life and the safety in utilization of power station service power switching device.
In one embodiment, preferably dual power supply automatic switching device 110 be CA1-800/4300B-800A/RW dual power supply from
Dynamic switching switch, alternative dual power supply automatic switching device 130 is opened for CA1-800/4300B-800A/FW Dual-power automatic switching
Close.By using the double power supply automatic switching switch of CA1-800/4300B-800A/RW model automatically to cut as preferred dual power supply
Changing device 110, and use the double power supply automatic switching switch alternately dual power supply of CA1-800/4300B-800A/FW model
Automatic switching control equipment 130, power supply switching efficiency is high.
In one embodiment, above-mentioned power station service power switching device also includes electric supply installation (not shown), for Denso
Put and connect alternative dual power supply automatic switching device 130 by second source interface.In the present embodiment, electric supply installation is especially by
Two power interfaces connect alternate controller.Electric supply installation is for powering to alternative dual power supply automatic switching device 130.Can manage
Solving, the external power supply that preferably dual power supply automatic switching device 110 connects can be the confession of alternative dual power supply automatic switching device 130
Electric installation, it would however also be possible to employ other electric supply installation.
In one embodiment, electric supply installation includes direct current cabinet (not shown) and Switching Power Supply (not shown), Switching Power Supply
Input connects direct current cabinet, and the outfan of Switching Power Supply connects alternative dual power supply automatic switching device by second source interface
130.In the present embodiment, the outfan of Switching Power Supply specifically connects alternate controller.Direct current cabinet is used for providing unidirectional current, switch electricity
The unidirectional current that direct current cabinet is exported by source is changed, and exports the running voltage that alternative dual power supply automatic switching device 130 needs, and supplies
Electricity reliability is high.In the present embodiment, Switching Power Supply be input voltage be 220V, output voltage be the Switching Power Supply of 24V.
In one embodiment, please continue to refer to Fig. 1, above-mentioned power station service power switching device also includes switch controller
150, switch controller 150 connects alternative dual power supply automatic switching device 130, in the present embodiment, specially connects alternative double electricity
The alternate controller of source automatic switching control equipment 130, load feeder line 200 is provided with step switch K, and switch controller 150 is used for
The break-make of control action switch K.The signal that switch controller 150 sends according to alternative dual power supply automatic switching device 130 controls
The break-make of step switch K, thus whether the load controlling to connect on this operating switch K place load feeder line 200 unloads.
Specifically, the alternate controller of alternative dual power supply automatic switching device 130 is sending enabling signal to the 3rd power supply
Driving means time, it is also possible to send secondary load unloader signal to switch controller 150, for example, it may be output high level
To switch controller 150, switch controller 150 control action switch K disconnects, and can excise some unessential loads and bear in a distant place
Lotus, at utmost reduces the generated output of the 3rd power supply, reduces investment outlay.
In one embodiment, switch controller 150 is shunt opening coil.Can break by control action switch K when shunt opening coil obtains electric
Opening, separating brake action is fast, efficiency is high.
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, not to above-mentioned reality
The all possible combination of each technical characteristic executed in example is all described, but, as long as the combination of these technical characteristics is not deposited
In contradiction, all it is considered to be the scope that this specification is recorded.
Embodiment described above only have expressed several embodiments of the present utility model, and it describes more concrete and detailed,
But therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that, for the common skill of this area
For art personnel, without departing from the concept of the premise utility, it is also possible to make some deformation and improvement, these broadly fall into
Protection domain of the present utility model.Therefore, the protection domain of this utility model patent should be as the criterion with claims.
Claims (10)
1. a power station service power switching device, it is characterised in that include preferred dual power supply automatic switching device, alternative double
Automatic power-supply switch, the first power interface and second source interface；
Described preferred dual power supply automatic switching device connects external power source, described alternative dual power supply by described first power interface
Automatic switching control equipment connects external power source by described second source interface, and described preferred dual power supply automatic switching device is for even
First power supply in water receiving power station and second source, described alternative dual power supply automatic switching device is used for connecting described preferred dual power supply
Automatic switching control equipment and the 3rd power supply in described power station, described alternative dual power supply automatic switching device is additionally operable to connect load feedback
Line and the driving means of described 3rd power supply.
Power station the most according to claim 1 service power switching device, it is characterised in that described preferred dual power supply is automatic
Switching device includes preferably commonly using switch, preferred backup circuit breaker and preferred controller, and the input of described preferably conventional switch is even
Connecing described first power supply, the input of described preferred backup circuit breaker connects described second source, described preferably conventional switch and institute
The outfan stating preferred backup circuit breaker connects described alternative dual power supply automatic switching device, and described preferably conventional switch is with described excellent
The control end selecting backup circuit breaker connects described preferred controller, and described preferred controller connects described first power supply and described second
Power supply, and connect external power source by described first power interface.
Power station the most according to claim 1 service power switching device, it is characterised in that described alternative dual power supply is automatic
Switching device includes alternative conventional switch, alternative backup circuit breaker and alternate controller, and the input of described alternative conventional switch is even
Connecing described preferred dual power supply automatic switching device, the input of described alternative backup circuit breaker connects described 3rd power supply, described standby
The outfan of the conventional switch of choosing and described alternative backup circuit breaker connects described load feeder line, described alternative conventional switch and described standby
The control end selecting backup circuit breaker connects described alternate controller, and described alternate controller connects the driving means of described 3rd power supply
With described preferred dual power supply automatic switching device, and described alternate controller by described second source interface connect external electrical
Source.
Power station the most according to claim 1 service power switching device, it is characterised in that described preferred dual power supply is automatic
Switching device and described alternative dual power supply automatic switching device are CB level double power supply automatic switching switch.
Power station the most according to claim 1 service power switching device, it is characterised in that described preferred dual power supply is automatic
Switching device is CA1-800/4300B-800A/RW double power supply automatic switching switch, described alternative dual power supply automatic switching device
For CA1-800/4300B-800A/FW double power supply automatic switching switch.
Power station the most according to claim 1 service power switching device, it is characterised in that also include electric supply installation, institute
State electric supply installation and connect described alternative dual power supply automatic switching device by described second source interface.
Power station the most according to claim 6 service power switching device, it is characterised in that described electric supply installation includes directly
Stream screen and Switching Power Supply, the input of described Switching Power Supply connects described direct current cabinet, and the outfan of described Switching Power Supply passes through institute
State second source interface and connect described alternative dual power supply automatic switching device.
Power station the most according to claim 7 service power switching device, it is characterised in that described Switching Power Supply is input
Voltage is 220V, output voltage is the Switching Power Supply of 24V.
Power station the most according to claim 1 service power switching device, it is characterised in that also include switch controller,
Described switch controller connects described alternative dual power supply automatic switching device, described load feeder line is provided with step switch, institute
State switch controller for controlling the break-make of described step switch.
Power station the most according to claim 9 service power switching device, it is characterised in that described switch controller is
Shunt opening coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620731092.5U CN205791789U (en) | 2016-07-12 | 2016-07-12 | Power station service power switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620731092.5U CN205791789U (en) | 2016-07-12 | 2016-07-12 | Power station service power switching device |
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| Publication Number | Publication Date |
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| CN205791789U true CN205791789U (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620731092.5U Active CN205791789U (en) | 2016-07-12 | 2016-07-12 | Power station service power switching device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106972469A (en) * | 2017-04-28 | 2017-07-21 | 华北电力大学（保定） | A kind of single line of power plant sends out line fault protection system and its guard method |
| CN107465255A (en) * | 2017-08-10 | 2017-12-12 | 西安热工研究院有限公司 | A kind of Turbo-generator Set accident starts auxiliary Power switching method and system |
-
2016
- 2016-07-12 CN CN201620731092.5U patent/CN205791789U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106972469A (en) * | 2017-04-28 | 2017-07-21 | 华北电力大学（保定） | A kind of single line of power plant sends out line fault protection system and its guard method |
| CN106972469B (en) * | 2017-04-28 | 2019-11-12 | 华北电力大学（保定） | A kind of the single line submitting line fault protection system and its guard method of power plant |
| CN107465255A (en) * | 2017-08-10 | 2017-12-12 | 西安热工研究院有限公司 | A kind of Turbo-generator Set accident starts auxiliary Power switching method and system |
| CN107465255B (en) * | 2017-08-10 | 2019-06-04 | 西安热工研究院有限公司 | A kind of method and system for switching power consumption of steam turbine generator unit accident start-up plant |
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