CN109461560A - A kind of transformer cooling device and its working principle - Google Patents
A kind of transformer cooling device and its working principle Download PDFInfo
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- CN109461560A CN109461560A CN201810497210.4A CN201810497210A CN109461560A CN 109461560 A CN109461560 A CN 109461560A CN 201810497210 A CN201810497210 A CN 201810497210A CN 109461560 A CN109461560 A CN 109461560A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/16—Water cooling
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Air Conditioning Control Device (AREA)
Abstract
In order to solve the problem of that existing break down in summer transformer Yin Gaoyiwen causes huge Socie-economic loss, innovation and creation propose a kind of transformer cooling device.A kind of transformer cooling device, including water storage cabinet, transformer and power supply unit, further includes: injection spray pipe is electrically connected with water storage cabinet twist-on with power supply unit, is mounted below transformer；Spraying machine is electrically connected with power supply unit, is mounted on transformer side；Spraying machine includes: pedestal, is installed on the ground, with tank weld；Water tank welds with neck is connect, is located above pedestal；Power plant module is electrically connected with control module；Spraying device is electrically connected with control module, and connect neck twist-on, is located above connection neck；Neck is connected, with tank weld, welding position is on rear side of water tank；Fixed handlebar is located at pedestal rear with tube chamber welds with base；Sensor module is electrically connected with control module；Control module is electrically connected with power supply unit, is mounted in pedestal.
Description
Technical field
The invention belongs to voltage device cooling field, and in particular to a kind of transformer cooling device and its work are former
Reason.
Background technique
When oil immersed self cooled transformer top-oil temperature is more than 80 DEG C, temperature is every to increase by 6 DEG C, and transformer aging doubles, and uses the longevity
Life shortens half.Main transformer running temperature, which is more than 80 DEG C, can accelerate main transformer aging, damage transformer service life, therefore overtemperature alarm is set
It is set to 80 DEG C.
The annual power grid power supply heavy-duty service time concentrates on month summer 7-9, and incident is transformer high load rate
Operation, and then transformer station high-voltage side bus temperature increases, and leads to overtemperature alarm.In order to ensure summer high temperature weather, when peak of power consumption
The transformer normal table operation of section, does not occur overtemperature alarm phenomenon, influences the transformer station high-voltage side bus service life, increase operation of power networks wind
Danger.Conventional conventional approach one is to reduce supply load, but will be unable to meet part power load, influences society's electricity consumption order,
Cause life inconvenient.
Summary of the invention
In order to solve it is above-mentioned break down in summer transformer Yin Gaoyiwen, cause huge Socie-economic loss
Problem, the invention propose a kind of transformer cooling device and its working principle.
In order to achieve the above objectives, the invention the technical solution adopted is that, a kind of transformer cooling device, including storage
Water tank, transformer and power supply unit, further includes: injection spray pipe is electrically connected with power supply unit with water storage cabinet twist-on, is mounted on transformation
Below device；Spraying machine is electrically connected with power supply unit, is mounted on transformer side；Spraying machine includes: pedestal, is installed on the ground,
With tank weld；Water tank welds with neck is connect, is located above pedestal；Power plant module is electrically connected with control module；Spraying dress
It sets, is electrically connected with control module, and connect neck twist-on, be located above connection neck；Neck is connected, with tank weld, welding
Position is on rear side of water tank；Fixed handlebar is located at pedestal rear with tube chamber welds with base；Sensor module is electrically connected with control module；
Control module is electrically connected with power supply unit, is mounted in pedestal.
Preferably, the injection spray pipe includes: water pipe, it is located at below transformer；With water storage cabinet twist-on；Valve, with water
Pipe twist-on；Electrical water jetting head is socketed with water pipe, is located above water pipe, is electrically connected with control module.
Preferably, the power device includes: motor, it is mounted in connection neck, is electrically connected with control module；
Water pump is mounted in water tank, is electrically connected with control module；Force (forcing) pump is mounted in water storage cabinet, is electrically connected with control module.
Preferably, the spraying device includes: atomizer, it is electrically connected with control module, is socketed with aqueduct；Electric wind
Fan, is electrically connected with control module, is mounted on atomizer rear；Aqueduct is socketed with atomizer, is mounted in water tank.
Preferably, the sensor module includes: temperature sensor, it is electrically connected, is mounted on spraying with control module
In device；Light intensity sensor is electrically connected with control module, is mounted on spraying device top；Humidity sensor, with control module electricity
Connection, is mounted in spraying device.
It is preferably, the connection neck includes: neck bracket, upper to be welded with rotation axis, time and tank weld, be
Empty pipe；Aqueduct is mounted in neck bracket, is socketed with water tank, is socketed with spraying device；Rotation axis is welded with spraying device
It connects, is engaged with motor.
Preferably, the pedestal includes: attic base, with tank weld；Steering wheel connects with attic base axis, transfers in attic base；
Inflated wheel connects with attic base axis, transfers in attic base, in front of steering wheel；Wheel lock connects with attic base axis, is located above steering wheel, is piece
Shape.
Preferably, a kind of working principle of transformer cooling device, suitable for a kind of transformer cooling device,
The following steps are included: S1: initialization；S2: sensor module acquires intensity of illumination, environment temperature and ambient humidity, and uploads to
Control module；S3: under the control of control module, injection spray pipe and spraying machine are sprayed, and are cooled down to surrounding enviroment and are added
It is wet
Preferably, the S3 includes following sub-step: B1: light intensity sensor detects present intensity of illumination, if it is strong
Light intensity (i.e. fine day, and direct projection is than stronger), jumps B2, strong (when i.e. cloudy or rainy days) if it is dim light, jumps
Turn B11；B2: it if it is strong light intensity, is jumped according to the data that temperature sensor acquires if ambient temperature is greater than 30 degree
B3, if peripheral temperature jumps B7 less than 30 degree；B3: if it is strong light intensity, and environment temperature is greater than 30 degree, is passed according to humidity
The data of sensor are judged that humidity is humidity, jump B4, and humidity is that drying jumps B6, and humidity jumps B5 to be moderate；B4: such as
Fruit humidity is humidity, and electric fan opens to the maximum wind speed, and atomizer is closed, and injection spray pipe low frequency water spray jumps B1；B5: if wet
It is moderate for spending, and electric fan opens to the maximum wind speed, and atomizer is middle-grade atomization, and frequency water spray, jumps B1 in injection spray pipe；B6: if
Humidity is drying, and electric fan opens to the maximum wind speed, and atomizer atomizing functions are performed fighting maximum, and injection spray pipe maximum frequency water spray jumps
B1；B7: if it is strong light intensity, and ambient enviroment is judged less than 30 degree according to the data of humidity sensor, and humidity is humidity
B8 is jumped, humidity is that drying jumps B10, and humidity jumps B9 to be moderate；B8: if humidity is humidity, electric fan reaches middle-grade, mist
Change device to close, injection spray pipe low frequency water spray jumps B1；B9: if humidity be it is moderate, electric fan reaches middle-grade, atomizer atomization
Function reaches low gear, and injection spray pipe low frequency water spray jumps B1；B10: if humidity is drying, electric fan reaches middle-grade, atomizer
Atomizing functions reach middle-grade, and injection spray pipe low frequency water spray jumps B1；B11: it is strong if it is dim light, it is acquired according to temperature sensor
Data, if ambient temperature be greater than 30 degree, B12 is jumped, if peripheral temperature jumps B13 less than 30 degree；B12: if
It is strong for dim light, and environment temperature is greater than 30 degree, is judged according to the data of humidity sensor, humidity is humidity, jumps B4, wet
Degree jumps B6 to be dry, and humidity jumps B5 to be moderate；B13: it is strong if it is dim light, and environment temperature is less than 30 degree, according to humidity
The data of sensor are judged, humidity is humidity, jumps B14, and humidity is drying, jump B15, humidity be it is moderate, jump
B16；B14: if it is humidity, electric fan opens to the maximum gear, and atomizer is closed, and injection spray pipe is closed, and jumps B1；B15: if it is
Dry, electric fan opens lowest gear, and atomizer atomizing functions reach lowest gear, and injection spray pipe low frequency water spray jumps B1；B16:
If it is moderate, electric fan closing, atomizer closing, injection spray pipe low frequency water spray jumps B1.
The utility model has the advantages that (1) can be cooperated by electric fan, atomizer is humidified in side and acceleration air flows for innovation and creation,
Be conducive to radiate, reduce temperature；(2) use of sensor module, so that the work more intelligence in device is automatic；(3) it saves
A large amount of man power and material, while having ensured the stabilization of power supply；(4) angle for connecting the adjustable spraying device of neck, makes
Obtaining can be more flexible；(5) in terms of pedestal, by the way of wheel, device is moved, while wheel lock can lock wheel
Son places setting and receives environmental factor disorderly movement.
Detailed description of the invention
Fig. 1: spray structure schematic diagram
In figure: 1, sprayer, 2, neck bracket, 3, water tank, 4, inflated wheel, 5, steering wheel, 6, wheel lock, 7, fixed handlebar, 8, turn
Moving axis, 9, attic base.
Specific embodiment
Embodiment
A kind of transformer cooling device, including water storage cabinet, transformer and power supply unit, further includes: injection spray pipe is twisted with water storage cabinet
It connects, is electrically connected with power supply unit, is mounted below transformer；Spraying machine 1, is electrically connected with power supply unit, is mounted on transformer side
Side；Spraying machine 1 includes: pedestal, and installation on the ground, is welded with water tank 3；Water tank 3 welds with neck is connect, is located on pedestal
Side；Power plant module is electrically connected with control module；Spraying device is electrically connected with control module, and connect neck twist-on, is located at and is connected
It connects above neck；Neck is connected, is welded with water tank 3, welding position is 3 rear side of water tank；Fixed handlebar 7 is located at tube chamber welds with base
Pedestal rear；Sensor module is electrically connected with control module；Control module is electrically connected with power supply unit, is mounted in pedestal.
The injection spray pipe includes: water pipe, is located at below transformer；With water storage cabinet twist-on；Valve, with water pipe twist-on；Electricity
Dynamic fountain head, is socketed with water pipe, is located above water pipe, is electrically connected with control module.
The power device includes: motor, is mounted in connection neck, is electrically connected with control module；Water pump, installation
In water tank 3, it is electrically connected with control module；Force (forcing) pump is mounted in water storage cabinet, is electrically connected with control module.
The spraying device includes: atomizer, is electrically connected with control module, is socketed with aqueduct；Electric fan, with control
Module electrical connection, is mounted on atomizer rear；Aqueduct is socketed with atomizer, is mounted in water tank 3.
The sensor module includes: temperature sensor, is electrically connected with control module, is mounted in spraying device；Light
Strong sensor, is electrically connected with control module, is mounted on spraying device top；Humidity sensor is electrically connected with control module, installation
In spraying device.
The connection neck includes: neck bracket 2, and upper and rotation axis 8 is welded, and lower and water tank 3 welds, and is hollow
Pipe；Aqueduct is mounted in neck bracket 2, is socketed with water tank 3, is socketed with spraying device；Rotation axis 8 is welded with spraying device
It connects, is engaged with motor.
The pedestal includes: attic base, is welded with water tank 3；Steering wheel 5 connects with attic base axis, transfers in attic base；Inflated wheel
4, it connects with attic base axis, is transferred in attic base, in 5 front of steering wheel；Wheel lock 6 connects with attic base axis, is located at 5 top of steering wheel, is piece
Shape.
A kind of working principle of transformer cooling device, suitable for a kind of transformer cooling device, including it is following
Step: S1: initialization；S2: sensor module acquires intensity of illumination, environment temperature and ambient humidity, and uploads to control module；
S3: under the control of control module, injection spray pipe and spraying machine 1 are sprayed, and are cooled down to surrounding enviroment and are humidified
The S3 includes following sub-step: B1: light intensity sensor detects present intensity of illumination, (i.e. fine if it is strong light intensity
It, and direct projection is than stronger), B2 is jumped, it is strong (when i.e. cloudy or rainy days) if it is dim light, jump B11；B2:
If it is strong light intensity, B3 is jumped, if all if ambient temperature is greater than 30 degree according to the data that temperature sensor acquires
Side temperature jumps B7 less than 30 degree；B3: if it is strong light intensity, and environment temperature is greater than 30 degree, according to the data of humidity sensor
Judged, humidity is humidity, jumps B4, and humidity is that drying jumps B6, and humidity jumps B5 to be moderate；B4: if humidity is tide
Wet, electric fan opens to the maximum wind speed, and atomizer is closed, and injection spray pipe low frequency water spray jumps B1；B5: if humidity is moderate, electricity
Fan opens to the maximum wind speed, and atomizer is middle-grade atomization, and frequency water spray, jumps B1 in injection spray pipe；B6: if humidity is drying,
Electric fan opens to the maximum wind speed, and atomizer atomizing functions are performed fighting maximum, and injection spray pipe maximum frequency water spray jumps B1；B7: if it is
Strong light intensity, and ambient enviroment is judged less than 30 degree according to the data of humidity sensor, humidity is that humidity jumps B8, humidity
B10 is jumped to be dry, humidity jumps B9 to be moderate；B8: if humidity is humidity, electric fan reaches middle-grade, and atomizer is closed, spray
Mist pipe low frequency water spray, jumps B1；B9: if humidity be it is moderate, electric fan reaches middle-grade, and atomizer atomizing functions reach low
Gear, injection spray pipe low frequency water spray, jumps B1；B10: if humidity is drying, electric fan reaches middle-grade, and atomizer atomizing functions are opened
To middle-grade, injection spray pipe low frequency water spray jumps B1；B11: it is strong if it is dim light, according to the data that temperature sensor acquires, if
Ambient temperature is greater than 30 degree, B12 is jumped, if peripheral temperature jumps B13 less than 30 degree；B12: it is strong if it is dim light, and
Environment temperature is greater than 30 degree, is judged according to the data of humidity sensor, and humidity is humidity, jumps B4, and humidity is dry jump
Turn B6, humidity jumps B5 to be moderate；B13: it is strong if it is dim light, and environment temperature is less than 30 degree, according to the number of humidity sensor
According to being judged, humidity is humidity, jumps B14, and humidity is drying, jumps B15, humidity be it is moderate, jump B16；B14: if
For humidity, electric fan opens to the maximum gear, and atomizer is closed, and injection spray pipe is closed, and jumps B1；B15: if it is drying, electric fan
Lowest gear is opened, atomizer atomizing functions reach lowest gear, and injection spray pipe low frequency water spray jumps B1；B16: if it is moderate,
Electric fan is closed, and atomizer is closed, and injection spray pipe low frequency water spray jumps B1.
Atomizer can be cooperated to humidify and accelerate air flowing in side by electric fan, be conducive to radiate, reduce temperature；
The use of sensor module, so that the work more intelligence in device is automatic；A large amount of man power and material is saved, is ensured simultaneously
The stabilization of power supply；The angle for connecting the adjustable spraying device of neck, allows to more flexible；In terms of pedestal, using wheel
The mode of son, moves device, while wheel lock 6 can lock wheel, places setting and receives environmental factor disorderly movement.
Claims (9)
1. a kind of transformer cooling device, including water storage cabinet, transformer and power supply unit, which is characterized in that further include:
Injection spray pipe is electrically connected with water storage cabinet twist-on with power supply unit, is mounted below transformer；
Spraying machine is electrically connected with power supply unit, is mounted on transformer side；
Spraying machine includes:
Pedestal is installed on the ground, with tank weld；
Water tank welds with neck is connect, is located above pedestal；
Power plant module is electrically connected with control module；
Spraying device is electrically connected with control module, and connect neck twist-on, is located above connection neck；
Neck is connected, with tank weld, welding position is on rear side of water tank；
Fixed handlebar is located at pedestal rear with tube chamber welds with base；
Sensor module is electrically connected with control module；
Control module is electrically connected with power supply unit, is mounted in pedestal.
2. a kind of transformer cooling device according to claim 1, which is characterized in that the injection spray pipe includes:
Water pipe is located at below transformer；With water storage cabinet twist-on；
Valve, with water pipe twist-on；
Electrical water jetting head is socketed with water pipe, is located above water pipe, is electrically connected with control module.
3. a kind of transformer cooling device according to claim 1, which is characterized in that the power device includes:
Motor is mounted in connection neck, is electrically connected with control module；
Water pump is mounted in water tank, is electrically connected with control module；
Force (forcing) pump is mounted in water storage cabinet, is electrically connected with control module.
4. a kind of transformer cooling device according to claim 1, which is characterized in that the spraying device includes:
Atomizer is electrically connected with control module, is socketed with aqueduct；
Electric fan is electrically connected with control module, is mounted on atomizer rear；
Aqueduct is socketed with atomizer, is mounted in water tank.
5. a kind of transformer cooling device according to claim 1, which is characterized in that the sensor module includes:
Temperature sensor is electrically connected with control module, is mounted in spraying device；
Light intensity sensor is electrically connected with control module, is mounted on spraying device top；
Humidity sensor is electrically connected with control module, is mounted in spraying device.
6. a kind of transformer cooling device according to claim 1, which is characterized in that the connection neck includes:
Neck bracket, upper and rotation axis are welded, and lower and tank weld is hollow pipe；
Aqueduct is mounted in neck bracket, is socketed with water tank, is socketed with spraying device；
Rotation axis is welded with spraying device, is engaged with motor.
7. a kind of transformer cooling device according to claim 1, which is characterized in that the pedestal includes:
Attic base, with tank weld；
Steering wheel connects with attic base axis, transfers in attic base；
Inflated wheel connects with attic base axis, transfers in attic base, in front of steering wheel；
Wheel lock connects with attic base axis, is located above steering wheel, is sheet.
8. a kind of working principle of transformer cooling device is suitable for a kind of transformer cooling device as described in claim 1,
Characterized by comprising the following steps:
S1: initialization；
S2: sensor module acquires intensity of illumination, environment temperature and ambient humidity, and uploads to control module；
S3: under the control of control module, injection spray pipe and spraying machine are sprayed, and are cooled down to surrounding enviroment and are humidified.
9. according to a kind of right working principle of transformer cooling device described in requiring 8, which is characterized in that the S3 packet
Include following sub-step:
B1: light intensity sensor detects present intensity of illumination, if it is strong light intensity (i.e. fine day, and direct projection is than stronger), jumps
Turn B2, it is strong (when i.e. cloudy or rainy days) if it is dim light, jump B11；
B2: if it is strong light intensity, jumping B3 if ambient temperature is greater than 30 degree according to the data that temperature sensor acquires,
If peripheral temperature jumps B7 less than 30 degree；
B3: if it is strong light intensity, and environment temperature is greater than 30 degree, is judged according to the data of humidity sensor, and humidity is tide
It is wet, B4 is jumped, humidity is that drying jumps B6, and humidity jumps B5 to be moderate；
B4: if humidity is humidity, electric fan opens to the maximum wind speed, and atomizer is closed, and injection spray pipe low frequency water spray jumps B1；
B5: if humidity be it is moderate, electric fan opens to the maximum wind speed, and atomizer is that middle-grade is atomized, frequency water spray in injection spray pipe, jump
Turn B1；
B6: if humidity is drying, electric fan opens to the maximum wind speed, and atomizer atomizing functions are performed fighting maximum, the maximum frequency of injection spray pipe
Rate water spray, jumps B1；
B7: if it is strong light intensity, and ambient enviroment is judged less than 30 degree according to the data of humidity sensor, and humidity is tide
Wet to jump B8, humidity is that drying jumps B10, and humidity jumps B9 to be moderate；
B8: if humidity is humidity, electric fan reaches middle-grade, and atomizer is closed, and injection spray pipe low frequency water spray jumps B1；
B9: if humidity be it is moderate, electric fan reaches middle-grade, and atomizer atomizing functions reach low gear, injection spray pipe low frequency water spray,
Jump B1；
B10: if humidity is drying, electric fan reaches middle-grade, and atomizer atomizing functions reach middle-grade, the spray of injection spray pipe low frequency
Water jumps B1；
B11: it is strong if it is dim light, it is jumped according to the data that temperature sensor acquires if ambient temperature is greater than 30 degree
B12, if peripheral temperature jumps B13 less than 30 degree；
B12: it is strong if it is dim light, and environment temperature is greater than 30 degree, is judged according to the data of humidity sensor, humidity is tide
It is wet, B4 is jumped, humidity is that drying jumps B6, and humidity jumps B5 to be moderate；
B13: it is strong if it is dim light, and environment temperature is judged less than 30 degree according to the data of humidity sensor, humidity is tide
It is wet, jump B14, humidity is drying, jump B15, humidity be it is moderate, jump B16；
B14: if it is humidity, electric fan opens to the maximum gear, and atomizer is closed, and injection spray pipe is closed, and jumps B1；
B15: if it is drying, electric fan opens lowest gear, and atomizer atomizing functions reach lowest gear, the spray of injection spray pipe low frequency
Water jumps B1；
B16: if it is moderate, electric fan closing, atomizer closing, injection spray pipe low frequency water spray jumps B1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810497210.4A CN109461560A (en) | 2018-05-22 | 2018-05-22 | A kind of transformer cooling device and its working principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810497210.4A CN109461560A (en) | 2018-05-22 | 2018-05-22 | A kind of transformer cooling device and its working principle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109461560A true CN109461560A (en) | 2019-03-12 |
Family
ID=65606366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810497210.4A Pending CN109461560A (en) | 2018-05-22 | 2018-05-22 | A kind of transformer cooling device and its working principle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109461560A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111009837A (en) * | 2019-12-31 | 2020-04-14 | 汇网电气有限公司 | Inflatable cabinet with intelligent self-checking function and self-checking adjusting method |
| CN112133531A (en) * | 2020-09-22 | 2020-12-25 | 广东电网有限责任公司东莞供电局 | Heat dissipation device applied to transformer and heat dissipation method thereof |
| CN113431425A (en) * | 2021-07-26 | 2021-09-24 | 广东电网有限责任公司 | Intelligent field fence and using method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205876752U (en) * | 2016-06-24 | 2017-01-11 | 昆明理工大学 | Energy -concerving and environment -protective electric fan |
| CN107833730A (en) * | 2017-10-31 | 2018-03-23 | 国网河南省电力公司邓州市供电公司 | A kind of ground transformer spraying cooling system and method |
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2018
- 2018-05-22 CN CN201810497210.4A patent/CN109461560A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205876752U (en) * | 2016-06-24 | 2017-01-11 | 昆明理工大学 | Energy -concerving and environment -protective electric fan |
| CN107833730A (en) * | 2017-10-31 | 2018-03-23 | 国网河南省电力公司邓州市供电公司 | A kind of ground transformer spraying cooling system and method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111009837A (en) * | 2019-12-31 | 2020-04-14 | 汇网电气有限公司 | Inflatable cabinet with intelligent self-checking function and self-checking adjusting method |
| CN111009837B (en) * | 2019-12-31 | 2021-09-10 | 汇网电气有限公司 | Inflatable cabinet with intelligent self-checking function and self-checking adjusting method |
| CN112133531A (en) * | 2020-09-22 | 2020-12-25 | 广东电网有限责任公司东莞供电局 | Heat dissipation device applied to transformer and heat dissipation method thereof |
| CN113431425A (en) * | 2021-07-26 | 2021-09-24 | 广东电网有限责任公司 | Intelligent field fence and using method thereof |
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Application publication date: 20190312 |
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