CN208954781U - A kind of loaded capacity regulating voltage regulating photovoltaic transformer - Google Patents
A kind of loaded capacity regulating voltage regulating photovoltaic transformer Download PDFInfo
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- CN208954781U CN208954781U CN201821919478.4U CN201821919478U CN208954781U CN 208954781 U CN208954781 U CN 208954781U CN 201821919478 U CN201821919478 U CN 201821919478U CN 208954781 U CN208954781 U CN 208954781U
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Abstract
This application involves a kind of loaded capacity regulating voltage regulating photovoltaic transformers, load capacity and pressure regulating switch 300 and control device 200 are provided on transformer body 100, control device 200 is connect with transformer body 100 and loaded capacity regulating voltage regulating switch 300, the secondary side voltage and secondary side current of transformer body 100 can be acquired in real time, then respectively according to secondary side voltage collected and secondary side current, realize that pressure regulation and capacity transfer to transformer body 100 operate by control loaded capacity regulating voltage regulating switch 300, so that loaded capacity regulating voltage regulating photovoltaic transformer can match with the characteristic of photovoltaic power generation, loaded capacity regulating voltage regulating photovoltaic transformer is adjusted to low capacity operation in idle running, it efficiently avoids generating biggish no-load loss when photovoltaic generating system longtime running.
Description
Technical field
This application involves new energy technical field of photovoltaic power generation, in particular to a kind of loaded capacity regulating voltage regulating photovoltaic transformer.
Background technique
With the pollution of environment and the worsening shortages of the energy, prominent fly has been obtained by the power generation cause of the core energy of solar energy
The development pushed ahead vigorously is likely to become worldwide energy supply main body in the future.Photovoltaic power generation be it is a kind of using photon irradiation to metal
When upper, its energy can all be absorbed by some electronics in metal, and the energy of Electron absorption is sufficiently large, can overcome metal inside
Gravitation acting, leaves metal surface and escapes, become a kind of generation technology of photon.
Photovoltaic generating system only has power output when sunlight is most strong at noon maximum, morning and very little of contributing at dusk, and night goes out
Power drops to zero, that is to say, that and photovoltaic generating system only generates electricity within the period of the 7:00-20:00 of strong sunlight at full capacity,
And it will be unable to generate electricity at night.And traditional photovoltaic transformer becomes (box type transformer) without excitation boosting case using conventional, this
The characteristic mismatch with photovoltaic power generation of kind transformer causes to cause very big unloaded damage when photovoltaic generating system longtime running
Consumption.
Utility model content
Based on this, it is necessary to for traditional photovoltaic transformer will lead to photovoltaic generating system longtime running cause it is very big
The problem of no-load loss, provides a kind of loaded capacity regulating voltage regulating photovoltaic transformer.
A kind of loaded capacity regulating voltage regulating photovoltaic transformer, comprising: transformer body；Acquire the secondary side voltage of the transformer
And secondary side current, and switched according to the secondary side voltage to loaded capacity regulating voltage regulating and send pressure regulation signal, according to described secondary
Side electric current switchs the control device for sending capacity transfer signal to the loaded capacity regulating voltage regulating；According to the pressure regulation signal to the transformation
Device ontology carries out pressure regulation, is switched according to the loaded capacity regulating voltage regulating that the capacity transfer signal carries out capacity transfer to the transformer；The control
Device processed connects the transformer body, and the loaded capacity regulating voltage regulating switch connects the control device, the loaded capacity-regulated tune
It compresses switch and connects the transformer body.
In one embodiment, the transformer body includes iron core and winding, and lead is provided on the winding, described
Control device and loaded capacity regulating voltage regulating switch are connect by corresponding lead with the winding respectively.
In one embodiment, the loaded capacity regulating voltage regulating photovoltaic transformer further includes cabinet and pedestal, and the cabinet is set
It is placed in the pedestal, the cabinet includes low-pressure chamber and fuel tank, and the control device is set to the low-pressure chamber, the transformer
Ontology and loaded capacity regulating voltage regulating switch are set to the inside of the fuel tank.
In one embodiment, the loaded capacity regulating voltage regulating photovoltaic transformer further includes being set to the low pressure of the low-pressure chamber
Casing, low-voltage cabinet and auxiliary dry-type transformer, the transformer body are connect by the low-tension bushing with the low-voltage cabinet, institute
Auxiliary dry-type transformer is stated to connect by the low-tension bushing with the transformer body.
In one embodiment, the loaded capacity regulating voltage regulating photovoltaic transformer further includes the smog of setting with the low-pressure chamber
Alarm.
In one embodiment, the fuel tank includes oil tank of transformer and on-load switch fuel tank, the on-load switch fuel tank
It is connected with the oil tank of transformer by wall bushing, the transformer body and loaded capacity regulating voltage regulating switch are set to institute
State oil tank of transformer.
In one embodiment, the cabinet is additionally provided with hyperbaric chamber, and the loaded capacity regulating voltage regulating photovoltaic transformer is also wrapped
Include the travel switch for being set to the breaking coil of the hyperbaric chamber mesohigh breaker.
In one embodiment, the loaded capacity regulating voltage regulating photovoltaic transformer further includes radiator, the radiator setting
In the outer surface of the fuel tank.
In one embodiment, the radiator is gilled radiator.
In one embodiment, the loaded capacity regulating voltage regulating switch is 10kV grades of loaded capacity regulating voltage regulating switches.
Above-mentioned loaded capacity regulating voltage regulating photovoltaic transformer is provided with load capacity and pressure regulating switch and control dress on transformer body
It sets, control device and transformer body and loaded capacity regulating voltage regulating switch connect, and can acquire the secondary of transformer body in real time
Side voltage and secondary side current have load to adjust then respectively according to secondary side voltage collected and secondary side current by control
Hold tap changer and realize that pressure regulation and capacity transfer to transformer body operate, so that loaded capacity regulating voltage regulating photovoltaic transformer can
Match with the characteristic of photovoltaic power generation, i.e., loaded capacity regulating voltage regulating photovoltaic transformer is adjusted to low capacity fortune in idle running
Row, efficiently avoids generating biggish no-load loss when photovoltaic generating system longtime running.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of loaded capacity regulating voltage regulating photovoltaic transformer in an embodiment；
Fig. 2 is the winding connection schematic diagram of transformer body in an embodiment；
Fig. 3 is the winding connection schematic diagram of transformer body in another embodiment；
Fig. 4 is loaded capacity regulating voltage regulating photovoltaic transformer structure chart in an embodiment；
Fig. 5 is loaded capacity regulating voltage regulating photovoltaic transformer structure chart in another embodiment；
Fig. 6 is loaded capacity regulating voltage regulating photovoltaic transformer structure chart in another embodiment；
Fig. 7 is transformer body and loaded capacity regulating voltage regulating position of the switch relation schematic diagram in an embodiment；
Fig. 8 is transformer body and loaded capacity regulating voltage regulating position of the switch relation schematic diagram in an another embodiment.
Specific embodiment
The application in order to facilitate understanding is described more fully the application below with reference to relevant drawings.In attached drawing
Give the preferred embodiment of the application.But the application can realize in many different forms, however it is not limited to herein
Described embodiment.On the contrary, purpose of providing these embodiments is keeps the understanding to disclosure of this application more saturating
It is thorough comprehensive.
Referring to Fig. 1, a kind of loaded capacity regulating voltage regulating photovoltaic transformer, comprising: transformer body 100；Control device 200,
Control device 200 connects transformer body 100；Loaded capacity regulating voltage regulating switch 300, the connection control of loaded capacity regulating voltage regulating switch 300
Device 200, loaded capacity regulating voltage regulating switch 300 connect transformer body 100；Control device 200 is for acquiring the secondary of transformer
Side voltage and secondary side current, and pressure regulation signal is sent to loaded capacity regulating voltage regulating switch 300 according to secondary side voltage, according to secondary
Side electric current sends capacity transfer signal to loaded capacity regulating voltage regulating switch 300；Loaded capacity regulating voltage regulating switch 300 is used for according to pressure regulation signal pair
Transformer body 100 carries out pressure regulation, carries out capacity transfer to transformer according to capacity transfer signal.
Specifically, loaded capacity regulating voltage regulating switch 300 is that one kind is used to change in load conditions transformer winding tap company
The capacity and pressure regulating device of position is connect, principle is realized in transformer winding and divided in the case where guaranteeing not interrupt load electric current
The switching of connector time changes the voltage ratio of transformer, to realize the mesh of capacity and pressure regulating to change the number of turns of winding
's.Loaded capacity regulating voltage regulating switch 300 is set to transformer body 100, and is connected with transformer body 100, adjusts when having to carry
Transformation can timely be controlled by holding after tap changer 300 receives the capacity transfer signal or pressure regulation signal that control device 200 is sent
Device ontology 100 is acted accordingly.
Can understand, in one embodiment, transformer body 100 include iron core and winding (including high-voltage winding and
Low pressure winding), it is wherein provided on winding lead (i.e. tap), loaded capacity regulating voltage regulating switch 300 passes through lead and transformer
Ontology 100 is connected.The secondary side voltage and secondary side current that control device 200 can acquire transformer body 100 are (respectively
Three-phase voltage and three-phase current), and the secondary voltage collected is compared with preset voltage threshold, when being acquired
Secondary side voltage exceed predetermined voltage threshold when, control device 200 to loaded capacity regulating voltage regulating switch 300 transmission pressure regulation signal,
The tap tap connection different from transformer body 100 for controlling loaded capacity regulating voltage regulating switch 300 by pressure regulation signal, reaches
Adjust the purpose of voltage；Meanwhile the secondary side current collected comparing with preset current threshold, work as secondary side current
In electric current maximum phase numerical value when being less than preset current threshold, control device 200 is to the transmission of loaded capacity regulating voltage regulating switch 300
Drop holds signal, acts loaded capacity regulating voltage regulating switch 300, and adjustment transformer body 100 enters low capacity operating status；When secondary
When the maximum phase numerical value of electric current in the electric current of side is more than or equal to preset current threshold, control device 200 is to loaded capacity regulating voltage regulating
Switch 300, which sends to rise, holds signal, and adjustment transformer body 100 enters high capacity operating status.It should be pointed out that in a reality
It applies in example, preset current threshold is 60% of current value when 100 low capacity of transformer body is run, it will be understood that at it
In its embodiment, preset current threshold can also be other numerical value, as long as the loading condition of transformer can be embodied, thus and
When adjust transformer body 100 working capacity.
In one embodiment, please referring to Fig. 2-Fig. 3, (left side is high-voltage winding, and right side is low pressure winding and with it
In for a phase), when loaded capacity regulating voltage regulating switch 300, which receives drop, holds instruction, control transformer body 100 using three/
One capacity is run, to reach energy loss when reducing unloaded.Specifically, loaded capacity regulating voltage regulating switch 300 receives
After drop holds signal, the large capacity connection side of the connection connection type of the high-voltage winding of transformer body 100 as shown in Figure 2 is controlled
Formula is changed to low capacity connection type shown in Fig. 3, i.e., is changed to star-like connection by triangle connection, while parallel connection connects in low pressure winding
Two sections connect are changed to the mode of series connection mode.Since high-voltage winding voltage reduces and the increased multiple phase of low pressure winding wire turn
Together, to keep output voltage stabilization constant, but the change of connection type is so that coil turn increases 1.73 times at this time, iron core
Magnetic flux density is greatly lowered, and silicon steel sheet specific loss becomes smaller, and no-load loss and no-load current also decline to a great extent, to drop significantly
Reactive loss and active loss when the low zero load of transformer, specifically unloaded reactive loss when low capacity connection type is small
The 1/10 of zero load reactive loss when large capacity connection type, unloaded active loss when low capacity connection type are less than large capacity
1/3 of active loss when connection type achievees the purpose that energy-saving.It is appreciated that when being changed to by low capacity connection type
The method of large capacity connection type and the method for above-mentioned large capacity connection type range low capacity connection type are just the opposite, herein
It repeats no more.It should be pointed out that three phases active power, the three-phase that control device 200 can also carry out transformer body are idle
Different parameter measurement and display, failure are realized in the acquisition of power, total active power, total reactive power and total apparent energy etc.
The function etc. of record.
In one embodiment, referring to Fig. 4, loaded capacity regulating voltage regulating photovoltaic transformer further includes cabinet 10 and pedestal 20,
Cabinet 10 is set to pedestal 20, and cabinet 10 is provided with low-pressure chamber 12 and fuel tank 13, and control device 200 is set to low-pressure chamber 12, becomes
Depressor ontology 100 and loaded capacity regulating voltage regulating switch 300 are set to the inside of fuel tank 13.
Specifically, transformer body 100 and loaded capacity regulating voltage regulating switch 300 are all set in inside fuel tank 13, in this implementation
In example, using oil-filled transformer body, i.e., have insulation performance good, at low cost as insulation and cooling medium using oil
With effective the advantages of extending device lifetime.
In one embodiment, referring to Fig. 5, low-pressure chamber 12 is internally provided with low-tension bushing 121,122 and of low-voltage cabinet
Auxiliary dry-type transformer 123, transformer body 100 are connect by low-tension bushing 121 with low-voltage cabinet 122, auxiliary dry-type transformer
123 are connect by low-tension bushing 121 with transformer body 100.
Specifically, low-tension bushing 121 is a kind of insulating sleeve, and when winding leading-out wire of transformer body 100 is required to lead to
Insulating sleeve is crossed, makes to insulate between lead-out wire and between lead-out wire and transformer case, while playing fixed lead-out wire.Cause
Voltage class is different, and insulating sleeve has pure porcelain casing tube, oil filled bushing and capacitance graded bushing etc., in the present embodiment, using true procelain set
Pipe, to be suitable for 10KV grades of loaded capacity regulating voltage regulating photovoltaic transformer.Further, in one embodiment, alarm is cigarette
Fog siren.In order to which when the emergency cases such as fire occur, timely alert, is effectively improved loaded capacity-regulated
The security performance of pressure regulation photovoltaic transformer.
In one embodiment, low-voltage cabinet is provided with main frame breaker, low pressure Surge Protector, breaker of plastic casing, knife
Molten switch, uninterruptible power supply (Uninterruptible Power System/Uninterruptable Power Supply,
UPS), other auxiliary elements such as Current Mutual Inductance.Control device 200 is set to low-voltage cabinet 122, passes through conducting wire and low-tension bushing 121
Connection, and then realize the connection with transformer body 100, the three-phase voltage of secondary side and adopting for three-phase current are carried out in real time
Collection.The suitable for reading of main frame breaker connect with transformer body, and lower mouth connects busbar connector, and low pressure Surge Protector is set to low pressure
On mounting rail in cabinet 122, have the function of inhibiting harmonic voltage；Breaker of plastic casing can be after electric current be more than escape setting certainly
Dynamic cutting electric current, plastic housing refer to the shell with plastic insulation as device, are used between insulated conductor and are grounded gold
Belong to part, breaker of plastic casing usually contains pyromagnetic escape unit, and the breaker of plastic casing of big model can be equipped with solid-state escape sensing
Device；Switch with knifeshaped fuse is also known as fuse disconnecting switch, is disconnecting switch and the device for switching that fuse is composed, using knife
It is molten to switch the structure that can simplify power distribution equipment；Uninterruptible power supply passes through battery etc. and is connected with host, passes through inverter etc.
Direct current is converted into alternating current, provides a kind of power supply device of uninterrupted power supply for power equipment.
In one embodiment, fuel tank 13 includes oil tank of transformer and on-load switch fuel tank, on-load switch fuel tank and transformation
Device fuel tank is connected by wall bushing, and transformer body 100 and loaded capacity regulating voltage regulating switch 300 are set to oil tank of transformer 13.
Specifically, gamut pull-out fuse and on-load switch, transformer body are provided in on-load switch fuel tank
100 are connected with on-load switch, and on-load switch is connected with gamut pull-out fuse again, and gamut pull-out fuse can be square
Just replacement fusible core, can play overload and short-circuit protection, avoid around the free carbon pollution body that on-load switch folding generates
Transformer oil liquid, minimal amount of transformer oil liquid is only needed replacing when internal transformer oil contamination needs replacing, have
There is the advantages of saving oil liquid and operating conveniently.It should be pointed out that being provided with the oil level indicator of display oil level in oil tank of transformer, showing
Show the pressure vacuum gauge of pressure, the pressure relief valve of protection and temperature controller.By oil level indicator and pressure gauge in real time into
Row oil mass is shown and pressure shows that when in order to be abnormal, staff can timely make a response, and has security performance
High advantage.
In one embodiment, please continue to refer to Fig. 5, cabinet 10 is additionally provided with hyperbaric chamber 11, loaded capacity regulating voltage regulating photovoltaic
Transformer further includes the travel switch 111 for being set to the high-voltage circuitbreaker breaking coil in hyperbaric chamber.Specifically, travel switch 111
Also known as position switch or limit switch are a kind of common low current master control electrical apparatus；Utilize touching for manufacturing machine moving component
Hitting makes its contact action to realize connection or disjunction control circuit, reaches certain control purpose.Travel switch 111 is set to height
On the breaking coil of the high-voltage circuitbreaker of pressure chamber 11, when the room door opening in hyperbaric chamber 11, the contact closure of travel switch can be made,
The electricity of the breaking coil of high-voltage circuitbreaker forces tripping, to guarantee to guarantee staff when opening hyperbaric chamber and being overhauled
Safety.Further, in one embodiment, Fig. 5 or Fig. 6 is please referred to, the inside in hyperbaric chamber 11 is additionally provided with sensor, band
Electric display, Zinc-Oxide Arrester, discharge counter, high-voltage connection terminal and headlamp etc..
In one embodiment, Fig. 4 or Fig. 5 is please referred to, loaded capacity regulating voltage regulating photovoltaic transformer further includes radiator 300,
Radiator 300 is set to the outer surface of fuel tank 13.Specifically, the outside face of fuel tank 13 is provided with radiator 300, in order to
Adstante febre can timely carry out radiating treatment to loaded capacity regulating voltage regulating photovoltaic transformer in the process of running, guarantee loaded capacity-regulated tune
Press the operation steady in a long-term of photovoltaic transformer.Further, in one embodiment, radiator 300 is gilled radiator.Chip
Radiator is gilled radiator, and finned tubular radiator is that gas is changed with one kind the most widely used in liquid heat exchanger
Hot equipment achievees the purpose that augmentation of heat transfer by installing fin additional on common base tube.Finned tubular radiator presses the knot of fin
Configuration formula can be divided into around chip, sheet string type, welding type and roller sheet formula；Common material is steel, stainless steel, copper, aluminium etc..Using piece
Formula radiator has the advantages that radiating efficiency is high.
In one embodiment, loaded capacity regulating voltage regulating switch 300 is 10kV grades of loaded capacity regulating voltage regulating switches 300.Specifically,
In one embodiment, loaded capacity regulating voltage regulating photovoltaic transformer is 10kV grades of loaded capacity regulating voltage regulating photovoltaic transformers, is had accordingly
Load capacity and pressure regulating switch 300 is also 10kV grades of loaded capacity regulating voltage regulating switches 300, by becoming in 10kV grades of loaded capacity regulating voltage regulating photovoltaics
Corresponding loaded capacity regulating voltage regulating switch 300 is set on depressor, through control device 200 to the secondary side winding of transformer body 100
Three-phase voltage and three-phase current be acquired analysis, transformer is converted to low capacity by high-volume run in zero load by realization
Operation, so that energy loss when being effectively prevented from idle running, has the advantages that energy saving.In one embodiment, it asks
Refering to Fig. 7 or Fig. 8, loaded capacity regulating voltage regulating switch 300 is vertically fixedly installed on transformer body 100, loaded capacity regulating voltage regulating switch
300 tapping point is connected with the tap of transformer body 100 respectively, carries out secondary side three-phase current and secondary side in real time
The acquisition of three-phase voltage switches the tapping point of loaded capacity regulating voltage regulating switch 300 when needing capacity transfer or pressure regulation by control device
Connection relationship between the tap of transformer body 100 can be realized capacity transfer or pressure regulation operation, and then significantly reduce
The no-load loss of load capacity and pressure regulating photovoltaic transformer.
Above-mentioned loaded capacity regulating voltage regulating photovoltaic transformer is provided with 300 He of load capacity and pressure regulating switch on transformer body 100
Control device 200, control device 200 are connect with transformer body 100 and loaded capacity regulating voltage regulating switch 300, can be adopted in real time
Collect the secondary side voltage and secondary side current of transformer body 100, then respectively according to secondary side voltage collected and secondary
Side electric current realizes that pressure regulation and capacity transfer to transformer body 100 operate by control loaded capacity regulating voltage regulating switch 300, to make
Obtaining loaded capacity regulating voltage regulating photovoltaic transformer can match with the characteristic of photovoltaic power generation, i.e., in idle running by loaded capacity-regulated tune
Pressure photovoltaic transformer is adjusted to low capacity operation, efficiently avoids generating biggish zero load when photovoltaic generating system longtime running
Loss.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
The limitation to claim therefore cannot be interpreted as.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of loaded capacity regulating voltage regulating photovoltaic transformer, which is characterized in that the loaded capacity regulating voltage regulating photovoltaic transformer includes:
Transformer body；
Acquire the secondary side voltage and secondary side current of the transformer, and according to the secondary side voltage to loaded capacity regulating voltage regulating
Switch sends pressure regulation signal, switchs the control dress for sending capacity transfer signal to the loaded capacity regulating voltage regulating according to the secondary side current
It sets；
Pressure regulation is carried out to the transformer body according to the pressure regulation signal, the transformer is carried out according to the capacity transfer signal
The loaded capacity regulating voltage regulating of capacity transfer switchs；
The control device connects the transformer body, and the loaded capacity regulating voltage regulating switch connects the control device, described
Loaded capacity regulating voltage regulating switch connects the transformer body.
2. loaded capacity regulating voltage regulating photovoltaic transformer according to claim 1, which is characterized in that the transformer body includes
Iron core and winding, are provided with lead on the winding, the control device and loaded capacity regulating voltage regulating switch respectively by pair
The lead answered is connect with the winding.
3. loaded capacity regulating voltage regulating photovoltaic transformer according to claim 1, which is characterized in that the loaded capacity regulating voltage regulating light
Lying prostrate transformer further includes cabinet and pedestal, and the cabinet is set to the pedestal, and the cabinet is provided with low-pressure chamber and fuel tank, institute
It states control device and is set to the low-pressure chamber, the transformer body and loaded capacity regulating voltage regulating switch are set to the fuel tank
Inside.
4. loaded capacity regulating voltage regulating photovoltaic transformer according to claim 3, which is characterized in that the loaded capacity regulating voltage regulating light
Lying prostrate transformer further includes the low-tension bushing, low-voltage cabinet and auxiliary dry-type transformer for being set to the low-pressure chamber, the transformer sheet
Body is connect by the low-tension bushing with the low-voltage cabinet, and the auxiliary dry-type transformer passes through the low-tension bushing and the change
The connection of depressor ontology.
5. loaded capacity regulating voltage regulating photovoltaic transformer according to claim 4, which is characterized in that the loaded capacity regulating voltage regulating light
Lying prostrate transformer further includes the smoke alarm for being set to the low-pressure chamber.
6. loaded capacity regulating voltage regulating photovoltaic transformer according to claim 3, which is characterized in that the fuel tank includes transformer
Fuel tank and on-load switch fuel tank, the on-load switch fuel tank are connected with the oil tank of transformer by wall bushing, the transformation
Device ontology and loaded capacity regulating voltage regulating switch are set to the oil tank of transformer.
7. loaded capacity regulating voltage regulating photovoltaic transformer according to claim 3, which is characterized in that the cabinet is additionally provided with height
Pressure chamber, the loaded capacity regulating voltage regulating photovoltaic transformer further include the breaking coil for being set to the hyperbaric chamber mesohigh breaker
Travel switch.
8. loaded capacity regulating voltage regulating photovoltaic transformer according to claim 3, which is characterized in that the loaded capacity regulating voltage regulating light
Lying prostrate transformer further includes radiator, and the radiator is set to the outer surface of the fuel tank.
9. loaded capacity regulating voltage regulating photovoltaic transformer according to claim 8, which is characterized in that the radiator dissipates for chip
Hot device.
10. loaded capacity regulating voltage regulating photovoltaic transformer according to claim 1, which is characterized in that the loaded capacity regulating voltage regulating
Switch is 10kV grades of loaded capacity regulating voltage regulating switches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821919478.4U CN208954781U (en) | 2018-11-21 | 2018-11-21 | A kind of loaded capacity regulating voltage regulating photovoltaic transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821919478.4U CN208954781U (en) | 2018-11-21 | 2018-11-21 | A kind of loaded capacity regulating voltage regulating photovoltaic transformer |
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| CN208954781U true CN208954781U (en) | 2019-06-07 |
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| CN201821919478.4U Active CN208954781U (en) | 2018-11-21 | 2018-11-21 | A kind of loaded capacity regulating voltage regulating photovoltaic transformer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378200A (en) * | 2018-11-21 | 2019-02-22 | 特变电工湖南电气有限公司 | A kind of loaded capacity regulating voltage regulating photovoltaic transformer |
| CN111933408A (en) * | 2020-07-24 | 2020-11-13 | 清华大学 | Oil-immersed transformer that leakproofness is good |
-
2018
- 2018-11-21 CN CN201821919478.4U patent/CN208954781U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378200A (en) * | 2018-11-21 | 2019-02-22 | 特变电工湖南电气有限公司 | A kind of loaded capacity regulating voltage regulating photovoltaic transformer |
| CN111933408A (en) * | 2020-07-24 | 2020-11-13 | 清华大学 | Oil-immersed transformer that leakproofness is good |
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