CN206756987U - Dry-type air-core reactor turn to turn insulation test device - Google Patents
Dry-type air-core reactor turn to turn insulation test device Download PDFInfo
- Publication number
- CN206756987U CN206756987U CN201720841703.6U CN201720841703U CN206756987U CN 206756987 U CN206756987 U CN 206756987U CN 201720841703 U CN201720841703 U CN 201720841703U CN 206756987 U CN206756987 U CN 206756987U
- Authority
- CN
- China
- Prior art keywords
- turn
- compartment
- direct current
- dry
- high voltage
- 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.)
- Active
Links
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
It the utility model is related to a kind of dry-type air-core reactor turn to turn insulation test device, including motor vehicle, high voltage direct current generator, pressure regulator, oscillograph and switch board.High voltage direct current generator, pressure regulator, oscillograph and switch board are installed in the compartment of motor vehicle, and switch board is electrically connected with pressure regulator, oscillograph, and pressure regulator is electrically connected with high voltage direct current generator.During field test, motor vehicle moves close to dry-type air-core reactor to be detected, just high voltage direct current generator, pressure regulator, oscillograph and switch board etc. are predominantly detected into equipment conveying and is carried to test site, without by high voltage direct current generator, pressure regulator, oscillograph and switch board etc. predominantly detect equipment get off arrangement assembling, it is only necessary to by discharge test unit site layout project assemble.In this way, assembling parts are few when turn to turn insulation test is tested, it can effectively increase test efficiency not against outside hoisting machine tool equipment, reduce staff labor intensity.
Description
Technical field
A kind of insulation detection device is the utility model is related to, is examined more particularly to a kind of dry-type air-core reactor turn-to-turn insulation
Survey device.
Background technology
At present, the failure of the dry-type air-core reactor generation final catching fire of turn-to-turn short circuit happens occasionally.And cause dry type
The main reason for air reactor accident is that reactor inter-turn insulation defect causes.In order to reduce the turn-to-turn of dry-type air-core reactor
Insulation fault problem, while insulation except the mass of coil, improvement encapsulating process, the enhancing structure that improve dry-type air-core reactor,
Should also have the efficiency test method that checking dry-type air-core reactor whether there is inter-turn insulation defect.
Traditional test method often uses the higher-order of oscillation method of ball-gap discharge technology, using ball gap controlled discharge technology
High-frequency impulse turn to turn insulation test method has a series of advantage, and such as application pulse number is more, and energy density is big, and available
Impulse hunting voltage waveform of amplitude stability etc..However, the test method still has problems with：Detection device quality is big,
Integrated level is not high so that instrument and equipment arrangement before transport, experiment, is attached to testing ground and need to expend a large amount of manpower and materials, no
It is easy to the field test of the quick inter-turn insulation defect for carrying out dry-type air-core reactor.
Utility model content
Based on this, it is necessary to the defects of overcoming prior art, there is provided a kind of dry-type air-core reactor turn to turn insulation test dress
Put, it can be easy to the field test of the quick inter-turn insulation defect for carrying out dry-type air-core reactor.
Its technical scheme is as follows：A kind of dry-type air-core reactor turn to turn insulation test device, including motor vehicle, high direct voltage
Generator, pressure regulator, oscillograph and switch board, the high voltage direct current generator, the pressure regulator, the oscillograph and the control
Cabinet processed is installed in the compartment of the motor vehicle, and the switch board is electrically connected with the pressure regulator, the oscillograph, described
Pressure regulator is electrically connected with the high voltage direct current generator.
Above-mentioned dry-type air-core reactor turn to turn insulation test device, during field test, motor vehicle moves close to be detected
Dry-type air-core reactor, high voltage direct current generator, pressure regulator, oscillograph and switch board etc. are just predominantly detected into equipment conveying and removed
It is transported to test site, and is got off cloth without high voltage direct current generator, pressure regulator, oscillograph and switch board etc. are predominantly detected into equipment
Put assembling, it is only necessary to which electric discharge and test cell are subjected to site layout project assembling.In this way, assembling parts when turn to turn insulation test is tested
It is few, it can effectively increase test efficiency not against outside hoisting machine tool equipment, reduce staff labor intensity.
In one of the embodiments, the high voltage direct current generator is movably installed in the compartment, described straight
Flow the generator bushing that high pressure generator includes setting relative to compartment inclined bottom surface.In this way, during field test, car is opened
The back door in railway carriage or compartment, mobile high voltage direct current generator, generator bushing is reached outside compartment, can ensure that generator bushing
Insulation distance between caused high-pressure section and in-car other parts and vehicle body is reliable, that is, is avoided that high-pressure side is put to car body
Electricity.
In one of the embodiments, the generator bushing is 20 relative to the angle of inclination of the compartment bottom surface
Degree is to 30 degree.It so, it is possible preferably to control the insulation distance between the high-pressure section and car body of high voltage direct current generator.More preferably
Ground, the generator bushing are 25 degree relative to the angle of inclination of the compartment bottom surface.In addition, high voltage direct current generator bottom
Portion is provided with guide rail, is slideably installed in compartment.It can adopt and drive high voltage direct current generator to move with electric or manual mode
It is dynamic, and guide rail is provided with the mechanical stop limiter for being used for making high voltage direct current generator be consolidated during transport and experiment so that
Field test is more reliable.
In one of the embodiments, there are the first equipment box and the second equipment box, the high direct voltage in the compartment
Generator is located at the middle part in the compartment, and first equipment box is located at the side of the high voltage direct current generator, and described second
Equipment box is located at the opposite side of the high voltage direct current generator, and first equipment box is used to install controlled discharge ball gap, described
Second equipment box is used for the control circuit for installing the controlled discharge ball gap.In this way, high voltage direct current generator is placed in compartment
Middle part, the first equipment box and the second equipment box are respectively placed in the both sides in compartment, and detection device is distributed more uniformly in compartment, made
The balance for obtaining compartment is preferable.
In one of the embodiments, pneumatics cabin is provided with the compartment, air pressure is provided with the pneumatics cabin
Contracting machine, the air compressor are used to provide compressed air to controlled discharge ball gap.It so, it is possible to ensure controlled discharge ball gap peace
Entirely, reliably work.
In one of the embodiments, equipment cabinet is provided with the compartment, the equipment cabinet is used to deposit electric discharge and surveyed
Try unit.If in this way, when carrying out field test, will can discharge with being taken out in equipment cabinet of the test cell out of compartment, installing
It is more convenient to testing ground, operation.
In one of the embodiments, the car bottom is provided with the electronic support feet of two or more.In this way, turn-to-turn insulation is examined
During survey, compartment is supported by electronic support feet so that motor vehicle is more steady, and test effect is preferable.
In one of the embodiments, the compartment outside portion is provided with the cat ladder for being connected to the car body top, the car
Compartment top portion is provided with luggage carrier.In this way, by cat ladder, the luggage in compartment can be shifted to the luggage carrier that be installed up to car body top
On.
In one of the embodiments, the car body top is provided with High-Pole Lamp, floodlight, camera device and loudspeaker.In this way,
Three-dimensional illumination and video monitoring etc., improve the observability and peace of the field test of dry-type air-core reactor turn to turn insulation test
Quan Xing.
In one of the embodiments, guidance panel and power supply are additionally provided with the compartment, on the guidance panel
Provided with the first power supply toggle switch, second source toggle switch and block, the first power supply toggle switch is described for controlling
Power supply is powered to the high voltage direct current generator, the pressure regulator, the oscillograph and the switch board, and described
Two power supply toggle switches are used to control the power supply to be supplied to illuminator, air-conditioning and the video monitoring of the motor vehicle
Electricity, the block are slidably disposed on the guidance panel, when the block slides into first position, the block with
The first power supply toggle switch, which contradicts, to be coordinated；When the block slides into the second place, the block and the described second electricity
Source toggle switch, which contradicts, to be coordinated.In this way, when the block slides into first position, the block contradicts the first power supply and stirred out
Close, the first power supply toggle switch can be limited and carry out switching manipulation, now the first power supply toggle switch supplies to remain off
Power supply can not be powered to the high voltage direct current generator, the pressure regulator, the oscillograph and the switch board, and second
Power supply toggle switch can be on-state, and power supply can give illuminator, air-conditioning and the video monitoring of motor vehicle to carry out
Power supply.When the block slides into the second place, the block contradicts second source toggle switch, can limit second source
Toggle switch carries out switching manipulation, and now to remain off, power supply can not be given motor-driven second source toggle switch
Illuminator, air-conditioning and the video monitoring of car are powered, and now the first power supply toggle switch is on-state, power supply energy
It is powered to the high voltage direct current generator, the pressure regulator, the oscillograph and the switch board, just can so avoids
Power supply can be carried out to the illuminator of motor vehicle, air-conditioning or video monitoring simultaneously in high voltage direct current generator power supply process
Power supply, that is, improve the reliability of power supply.
Brief description of the drawings
Fig. 1 is the dry-type air-core reactor turn to turn insulation test apparatus structure schematic diagram described in the utility model embodiment；
Fig. 2 is the top view of the dry-type air-core reactor turn to turn insulation test device described in the utility model embodiment；
Fig. 3 is guidance panel in the dry-type air-core reactor turn to turn insulation test device described in the utility model embodiment
Schematic diagram.
10th, motor vehicle, 11, compartment, 12, electronic support feet, 13, cat ladder, 14, High-Pole Lamp, 15, floodlight, 16, shooting dress
Put, 17, loudspeaker, 18, luggage carrier, 20, high voltage direct current generator, 21, generator bushing, 22, guide rail, 30, switch board,
41st, the first equipment box, the 42, second equipment box, 51, pneumatics cabin, 52, air compressor, 60, equipment cabinet, 70, guidance panel,
71st, the first power supply toggle switch, 72, second source toggle switch, 73, block, 74, slide rail.
Embodiment
To enable above-mentioned purpose of the present utility model, feature and advantage more obvious understandable, below in conjunction with the accompanying drawings to this
The embodiment of utility model is described in detail.Elaborate many details in order to abundant in the following description
Understand the utility model.But the utility model can be to be much different from other manner described here to implement, this area
Technical staff can do similar improvement in the case of without prejudice to the utility model connotation, therefore the utility model is not by following public affairs
The limitation for the specific embodiment opened.
In description of the present utility model, it is to be understood that term " first ", " second " are only used for describing purpose, and
It is not intended that instruction or hint relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define
At least one this feature can be expressed or be implicitly included to the feature of " first ", " second ".In description of the present utility model,
" multiple " are meant that at least two, such as two, three etc., unless otherwise specifically defined.
In description of the present utility model, it is to be understood that when an element is considered as " connection " another element,
Another element can be directly to or may be simultaneously present intermediary element.On the contrary, when element for be referred to as " direct " and
During another element connection, in the absence of intermediary element.
As shown in Figure 1 to Figure 2, a kind of dry-type air-core reactor turn to turn insulation test device, including motor vehicle 10, direct current are high
Press generator 20, pressure regulator, oscillograph and switch board 30.The high voltage direct current generator 20, the pressure regulator, the oscillograph
And the switch board 30 is installed in the compartment 11 of the motor vehicle 10.The switch board 30 and the pressure regulator, described show
Ripple device is electrically connected with, and the pressure regulator is electrically connected with the high voltage direct current generator 20.
Above-mentioned dry-type air-core reactor turn to turn insulation test device, during field test, motor vehicle 10 moves close to be checked
The dry-type air-core reactor of survey, high voltage direct current generator 20, pressure regulator, oscillograph and switch board 30 etc. are just predominantly detected into equipment
Transport is carried to test site, and without high voltage direct current generator 20, pressure regulator, oscillograph and switch board 30 etc. are predominantly detected
Equipment, which is got off, arranges assembling, it is only necessary to which electric discharge is carried out into site layout project assembling with test cell.In this way, when turn to turn insulation test is tested
Assembling parts are few, can effectively increase test efficiency not against outside hoisting machine tool equipment, reduce the work of staff
Intensity.
In the present embodiment, the high voltage direct current generator 20 is movably installed in the compartment 11, and the direct current is high
Generator 20 is pressed to include the generator bushing 21 set relative to the inclined bottom surface of compartment 11.In this way, during field test, open
The back door in compartment 11, mobile high voltage direct current generator 20, generator bushing 21 is reached outside compartment 11, can ensure that generation
Insulation distance between high-pressure section caused by device bushing 21 and in-car other parts and vehicle body is reliable, that is, is avoided that high-pressure side
Car body is discharged.
In addition, the generator bushing 21 is 20 degree to 30 degree relative to the angle of inclination of the bottom surface of compartment 11.
It so, it is possible preferably to control the insulation distance between the high-pressure section and car body of high voltage direct current generator 20.Preferably, the hair
Raw device bushing 21 is 25 degree relative to the angle of inclination of the bottom surface of compartment 11.In addition, the bottom of high voltage direct current generator 20
Guide rail 22 is provided with, is slideably installed in compartment 11.It can adopt and drive high voltage direct current generator with electric or manual mode
20 movements, and guide rail 22 is provided with the mechanical position limitation dress for being used to make high voltage direct current generator 20 consolidate during transport and experiment
Put so that field test is more reliable.
In addition, there are the first equipment box 41 and the second equipment box 42 in the compartment 11.The high voltage direct current generator 20
Positioned at the middle part in the compartment 11.First equipment box 41 is located at the side of the high voltage direct current generator 20, and described second
Equipment box 42 is located at the opposite side of the high voltage direct current generator 20, and first equipment box 41 is used to install controlled discharge ball
Gap, second equipment box 42 are used for the control circuit for installing the controlled discharge ball gap.In this way, by high voltage direct current generator 20
The middle part in compartment 11 is placed in, the first equipment box 41 and the second equipment box 42 are respectively placed in the both sides in compartment 11, and detection device is in car
Distribution is more uniform in railway carriage or compartment 11 so that the balance in compartment 11 is preferable.
Further, it is provided with pneumatics cabin 51 in the compartment 11.Air compressor is provided with the pneumatics cabin 51
52, the air compressor 52 is used to provide compressed air to controlled discharge ball gap.It so, it is possible to ensure controlled discharge ball gap peace
Entirely, reliably work.
Further, it is provided with equipment cabinet 60 in the compartment 11.The equipment cabinet 60 is used to deposit electric discharge and test is single
Member.If in this way, when carrying out field test, will can discharge with being taken out in equipment cabinet 60 of the test cell out of compartment 11, installing
It is more convenient to testing ground, operation.
Further, the bottom of compartment 11 is provided with the electronic support feet 12 of two or more.In this way, during turn to turn insulation test,
Compartment 11 is supported by electronic support feet 12 so that motor vehicle 10 is more steady, and test effect is preferable.
Further, the outside portion of compartment 11 is provided with the cat ladder 13 for being connected to the top of compartment 11.The compartment 11
Top is provided with luggage carrier 18.In this way, by cat ladder 13, the row that the luggage transfer in compartment 11 can be installed up at the top of compartment 11
On Lee's frame 18.
Further, the top of compartment 11 is provided with High-Pole Lamp 14, floodlight 15, camera device 16 and loudspeaker 17.In this way,
Three-dimensional illumination and video monitoring etc., improve the observability and peace of the field test of dry-type air-core reactor turn to turn insulation test
Quan Xing.
Referring to Fig. 3, in the present embodiment, guidance panel 70 and power supply are additionally provided with the compartment 11.The operation
Panel 70 is provided with the first power supply toggle switch 71, second source toggle switch 72 and block 73.First power supply is stirred out
71 are closed to be used to control the power supply to the high voltage direct current generator 20, the pressure regulator, the oscillograph and the control
Cabinet 30 processed is powered.The second source toggle switch 72 is used for the illumination for controlling the power supply to the motor vehicle 10
System, air-conditioning and video monitoring are powered.The block 73 is slidably disposed on the guidance panel 70.When the gear
When block 73 slides into first position, the block 73 contradicts with the first power supply toggle switch 71 to be coordinated；When the block 73
When sliding into the second place, the block 73 contradicts with the second source toggle switch 72 to be coordinated.Specifically, guidance panel 70
Slide rail 74 is provided with, block 73 is slidably disposed on slide rail 74.In this way, when the block 73 slides into first position,
The block 73 contradicts the first power supply toggle switch 71, can limit the first power supply toggle switch 71 and carry out switching manipulation, now
For first power supply toggle switch 71 to remain off, power supply can not give the high voltage direct current generator 20, the pressure regulation
Device, the oscillograph and the switch board 30 are powered, and second source toggle switch 72 can be on-state, power supply
It can be powered to the illuminator of motor vehicle 10, air-conditioning and video monitoring.When the block 73 slides into the second place,
The block 73 contradicts second source toggle switch 72, can limit second source toggle switch 72 and carry out switching manipulation, now
To remain off, power supply to the illuminator of motor vehicle 10, air-conditioning and can not regard second source toggle switch 72
Frequency monitoring is powered, and now the first power supply toggle switch 71 is on-state, and power supply can give the high direct voltage to occur
Device 20, the pressure regulator, the oscillograph and the switch board 30 are powered, and just can so avoid power supply to direct current
It can be powered, that is, carry to the illuminator of motor vehicle 10, air-conditioning or video monitoring simultaneously in the power supply process of high pressure generator 20
The high reliability of power supply.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply 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, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that the common skill for this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
1. a kind of dry-type air-core reactor turn to turn insulation test device, it is characterised in that occur including motor vehicle, high direct voltage
Device, pressure regulator, oscillograph and switch board, the high voltage direct current generator, the pressure regulator, the oscillograph and the switch board
It is installed in the compartment of the motor vehicle, the switch board is electrically connected with the pressure regulator, the oscillograph, the pressure regulation
Device is electrically connected with the high voltage direct current generator.
2. dry-type air-core reactor turn to turn insulation test device according to claim 1, it is characterised in that the direct current is high
Pressure generator is movably installed in the compartment, and the high voltage direct current generator includes setting relative to compartment inclined bottom surface
Generator bushing.
3. dry-type air-core reactor turn to turn insulation test device according to claim 2, it is characterised in that the generator
Bushing is 20 degree to 30 degree relative to the angle of inclination of the compartment bottom surface.
4. dry-type air-core reactor turn to turn insulation test device according to claim 1, it is characterised in that in the compartment
Also the first equipment box and the second equipment box, the high voltage direct current generator are located at the middle part in the compartment, first equipment
Case is located at the side of the high voltage direct current generator, and second equipment box is located at the opposite side of the high voltage direct current generator,
First equipment box is used to install controlled discharge ball gap, and second equipment box is used for the control for installing the controlled discharge ball gap
Circuit processed.
5. dry-type air-core reactor turn to turn insulation test device according to claim 1, it is characterised in that in the compartment
Pneumatics cabin is provided with, air compressor is provided with the pneumatics cabin, the air compressor is used to give controlled discharge ball gap
Compressed air is provided.
6. dry-type air-core reactor turn to turn insulation test device according to claim 1, it is characterised in that in the compartment
Equipment cabinet is provided with, the equipment cabinet is used to deposit electric discharge and test cell.
7. dry-type air-core reactor turn to turn insulation test device according to claim 1, it is characterised in that the compartment bottom
Portion is provided with the electronic support feet of two or more.
8. dry-type air-core reactor turn to turn insulation test device according to claim 1, it is characterised in that outside the compartment
Sidepiece is provided with the cat ladder for being connected to the car body top, and the car body top is provided with luggage carrier.
9. dry-type air-core reactor turn to turn insulation test device according to claim 1, it is characterised in that the carriage top
Portion is provided with High-Pole Lamp, floodlight, camera device and loudspeaker.
10. the dry-type air-core reactor turn to turn insulation test device according to any one of claim 1 to 9, it is characterised in that
Guidance panel and power supply are additionally provided with the compartment, the guidance panel is provided with the first power supply toggle switch, the second electricity
Source toggle switch and block, the first power supply toggle switch are used to control the power supply to the high direct voltage to occur
Device, the pressure regulator, the oscillograph and the switch board are powered, and the second source toggle switch is described for controlling
Power supply is powered to illuminator, air-conditioning and the video monitoring of the motor vehicle, and the block is slidably disposed on
On the guidance panel, when the block slides into first position, the block contradicts with the first power supply toggle switch
Coordinate；When the block slides into the second place, the block contradicts with the second source toggle switch to be coordinated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720841703.6U CN206756987U (en) | 2017-07-12 | 2017-07-12 | Dry-type air-core reactor turn to turn insulation test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720841703.6U CN206756987U (en) | 2017-07-12 | 2017-07-12 | Dry-type air-core reactor turn to turn insulation test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206756987U true CN206756987U (en) | 2017-12-15 |
Family
ID=60622543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720841703.6U Active CN206756987U (en) | 2017-07-12 | 2017-07-12 | Dry-type air-core reactor turn to turn insulation test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206756987U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108594088A (en) * | 2018-04-28 | 2018-09-28 | 广州供电局有限公司 | The detection device and detecting system of reactor |
-
2017
- 2017-07-12 CN CN201720841703.6U patent/CN206756987U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108594088A (en) * | 2018-04-28 | 2018-09-28 | 广州供电局有限公司 | The detection device and detecting system of reactor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101561482B (en) | Electric power transformer field calibration vehicle | |
| CN103336246B (en) | Storage battery monitoring device and method | |
| CN207502675U (en) | Semi-automatic PCB test machines | |
| CN103264650B (en) | A kind of charging electric vehicle facility inspection vehicle | |
| CN206756987U (en) | Dry-type air-core reactor turn to turn insulation test device | |
| CN107991556A (en) | The power drive system motor axial direction conducted emission test system and method for electric automobile | |
| CN105548763A (en) | Electric automobile and test system for electric automobile | |
| CN201413390Y (en) | Electric power transformer field calibration vehicle | |
| CN106274620A (en) | A kind of scalable, upset and the compartment of horizontal sliding | |
| CN105842609A (en) | Hardware circuit detecting device for control unit of diesel engine SCR system | |
| CN108427091A (en) | Current transformer error calibration equipment | |
| CN201289515Y (en) | Mobile local discharge test device | |
| CN107966616A (en) | Motor vehicle electromagnetic Flied emission strength test method based on car body threedimensional model | |
| CN202453483U (en) | Full-automatic electrical performance detection device of power panel | |
| CN109143069A (en) | A kind of motor driven systems of pure electric coach are test bed | |
| CN107528449A (en) | Portable multi-function is adjustable alternating current-direct current power box for high tension testing | |
| CN205749775U (en) | Force oil circulation transformer oil paper insulation test system | |
| CN114814428B (en) | Fixed strong magnetic impact test simulation platform and method | |
| CN107015130B (en) | A kind of Combined cable insulation performance testing device | |
| CN213517489U (en) | Automatic lamp aging line | |
| CN107414478A (en) | A kind of assembly line of starter stator assembly | |
| CN205748710U (en) | Optical fiber temperature-measurement device and transformer oil paper insulation test system | |
| CN207650287U (en) | A kind of degradation cabinet of intelligent capacitor | |
| CN105699814A (en) | Multi-purpose compact type impulse generator | |
| CN207623780U (en) | A kind of detection device of air compressor controller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200923 Address after: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee after: Guangzhou Power Supply Bureau of Guangdong Power Grid Co.,Ltd. Address before: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee before: GUANGZHOU POWER SUPPLY Co.,Ltd. |