CN107947127A - A kind of power distribution cabinet temperature protection system - Google Patents
A kind of power distribution cabinet temperature protection system Download PDFInfo
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- CN107947127A CN107947127A CN201711410976.6A CN201711410976A CN107947127A CN 107947127 A CN107947127 A CN 107947127A CN 201711410976 A CN201711410976 A CN 201711410976A CN 107947127 A CN107947127 A CN 107947127A
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- 238000012545 processing Methods 0.000 claims abstract description 61
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 description 11
- 238000012423 maintenance Methods 0.000 description 3
- 206010037660 Pyrexia Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/22—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/026—Means for indicating or recording specially adapted for thermometers arrangements for monitoring a plurality of temperatures, e.g. by multiplexing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/028—Means for indicating or recording specially adapted for thermometers arrangements for numerical indication
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/24—Circuit arrangements for boards or switchyards
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Distribution Board (AREA)
Abstract
The invention discloses a kind of power distribution cabinet temperature protection system, including cabinet, fire-alarm is equipped with the top of the cabinet, the cabinet is internally provided with main switch, central processing unit and display, the central processing unit is arranged at main switch side, the display is arranged at central processing unit side, the main switch side is connected with inlet wire cable, the main switch bottom is equipped with relay, the main switch is connected with relay by bus-bar, described relay one end is equipped with outlet cable, the inlet wire cable, outlet cable and bus-bar side and cabinet inner wall are equipped with temperature sensor.Whole temperature protection system temperature in use sensor of the invention is handled by central processing unit and output control is connected in parallel to power distribution cabinet main switch control loop; excessive electric wiring and annex need not be increased; this protection system not only protects the safe to use of power distribution cabinet, the significantly more efficient generation for having prevented electrical fire.
Description
Technical field
The present invention relates to temperature protection system field, more particularly to a kind of power distribution cabinet temperature protection system.
Background technology
Electrical heating is typically to cause one of immediate cause of fire incident in power distribution cabinet, and many switches were all brought for this
The temperature of electric current heat protection function, simply existing switch Thermal protection only detection switch disengaging line end, and power distribution cabinet usually draws
Play fever be in terminal and bus-bar wiring position because the reduction of wiring position contact area, so as to cause resistance to increase,
Fever is flowed through more than the height of temperature elsewhere in same electric current, is transferred at switch and caused by bus-bar or cable in the presence of temperature
During tripping, the temperature of the connecting part is enough to cause fire.
Therefore, it is necessary to solve the above problems to invent a kind of power distribution cabinet temperature protection system.
The content of the invention
It is proposed in the above background technology to solve it is an object of the invention to provide a kind of power distribution cabinet temperature protection system
Problem.
To achieve the above object, the present invention provides following technical solution：A kind of power distribution cabinet temperature protection system, including cabinet
Body, the cabinet top are equipped with fire-alarm, and the cabinet is internally provided with main switch, central processing unit and display, described
Central processing unit is arranged at main switch side, and the display is arranged at central processing unit side, the main switch side connection
There is inlet wire cable, the main switch bottom is equipped with relay, and the main switch is connected with relay by bus-bar, the relay
Device one end is equipped with outlet cable, and the inlet wire cable, outlet cable and bus-bar side and cabinet inner wall are equipped with temperature biography
Sensor.
Preferably, the temperature sensor model is arranged to WZP-PT100, and the temperature sensor and fire-alarm are equal
It is electrically connected with the central processing unit.
Preferably, the central processing unit is connected in parallel with main switch.
Preferably, the central processing unit output terminal is equipped with alarm delay switch.
Preferably, the temperature sensor is electrically connected with central processing unit by A/D converter, the temperature sensor
PT100 type thermocouples are equipped with the connection circuit of central processing unit.
Preferably, the central processing unit connecting pin is equipped with home server, and the home server connecting pin is equipped with cloud
Hold server.
The present invention also provides a kind of power distribution cabinet temperature protection system, it protects system operation step as follows：
Step 1：Pacify respectively in the cabinet inner wall of inlet wire cable side, bus-bar side, outlet cable side and power distribution cabinet
Temperature sensor is filled, then connects central processing unit, and central processing unit is connected in parallel in power distribution cabinet main switch control loop；
Step 2：During whole power distribution cabinet operation, system initialization is protected, temperature sensor monitors temperature everywhere in real time,
And data sending is converted the information into central processing unit by A/D converter, central processing unit reads inlet wire cable, outlet electricity
The temperature sensor measurement value of cable and bus-bar side and the temperature sensor measurement value of cabinet inner wall carry out contrast processing；
Step 3：It is when temperature sensor measurement value at inlet wire cable, at outlet cable and at bus-bar is normal, then whole
A power distribution cabinet normal operation；
Step 3：When temperature sensor measurement value at inlet wire cable is normal, the temperature sensor at outlet cable is surveyed
Value is more than setting value, and temperature height is alarmed at outlet cable, the wiring loosening at outlet cable, central processing unit alarm；
Step 4：When temperature sensor measurement value at the inlet wire cable and at outlet cable is normal, the temperature at bus-bar
Degree measurement value sensor is more than setting value, and temperature height is alarmed at bus-bar, the wiring loosening at bus-bar, central processing unit report
It is alert；
Step 5：Temperature sensor measurement value is more than setting value at inlet wire cable, temperature sensor measurement at bus-bar
When being worth normal, the wiring loosening at inlet wire cable, the high alarm of temperature at inlet wire cable, the wiring loosening at inlet wire cable, center
Processor is alarmed；
Step 6：Temperature sensor measurement value is more than setting value at inlet wire cable and bus-bar, temperature at outlet cable
Temperature is high when measurement value sensor is normal, at bus-bar alarms, the wiring loosening at bus-bar, central processing unit alarm；
Step 7：Temperature sensor measurement value at inlet wire cable, at outlet cable and at bus-bar is more than setting value
When, then whole power distribution cabinet load excessive, central processing unit are alarmed by alarm delay switch, and then, relay is defeated for delay time
Go out to cut off major loop control circuit, the protection of main switch separating brake；
Step 8：The position of the warning message detected and alarm is sent to home server and shown by central processing unit
Show device, information is uploaded to cloud server by home server, facilitates staff's maintenance and remote monitoring.
The technique effect and advantage of the present invention：By respectively at long cable section of ingoing line, bus-bar junction, load leading-out terminal and
Mounting temperature sensor at cabinet inner wall, according to temperature sensor senses everywhere to signal be converted into temperature value, by inlet wire
The temperature and cabinet temperature at place, bus-bar connecting part and leading-out terminal are contrasted, and such as temperature generally rises more than setting value everywhere,
That is load overload (electric current is excessive) alarm；Such as single position temperature rises too high, then wiring loosening (loose contact, aging circuit)
Alarm；The excessive alarm of temperature exceeds setting time, then relay output cut-out major loop control circuit, the protection of main switch separating brake；
In addition, whole temperature protection system is handled using external temperature sensor by central processing unit and output control is connected in parallel to distribution
Cabinet main switch control loop, and control loop only needs to be connected in parallel to original control loop, without increase excessive electric wiring and
Annex；This protection system not only protects the safe to use of power distribution cabinet, the significantly more efficient generation for having prevented electrical fire.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention.
Fig. 2 is the systematic schematic diagram of the present invention.
Fig. 3 is the step structure chart of the present invention.
In figure：1 cabinet, 2 fire-alarms, 3 main switches, 4 central processing units, 5 displays, 6 inlet wire cables, 7 relays,
8 bus-bars, 9 outlet cables, 10 temperature sensors, 11A/D converters, 12 home servers, 13 cloud servers.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment, belongs to the scope of protection of the invention.
A kind of power distribution cabinet temperature protection system according to figure 1, including cabinet 1, the top of cabinet 1 are equipped with fire report
Alert device 2, the cabinet 1 are internally provided with main switch 3, central processing unit 4 and display 5, and the central processing unit 4 is arranged at master and opens
3 sides are closed, the display 5 is arranged at 4 side of central processing unit, and 3 side of main switch is connected with inlet wire cable 6, described
3 bottom of main switch is equipped with relay 7, and the main switch 3 is connected with relay 7 by bus-bar 8, and described 7 one end of relay is set
There is outlet cable 9, the inlet wire cable 6, outlet cable 9 and 8 side of bus-bar and 1 inner wall of cabinet are equipped with temperature sensor
10,10 model of temperature sensor is arranged to WZP-PT100, the temperature sensor 10 and fire-alarm 2 with center
Processor 4 is electrically connected, and is conducive to central processing unit 4 and is received the temperature information that temperature sensor 10 is sent, passes through fire alarm
Device 2 is alarmed, and the central processing unit 4 is connected in parallel with main switch 3, without increasing excessive electric wiring and annex, installation side
Just, 4 output terminal of central processing unit is equipped with alarm delay switch, being capable of delayed alarm, the temperature sensor 10 and center
Processor 4 is electrically connected by A/D converter 11, and the connection circuit of the temperature sensor 10 and central processing unit 4 is equipped with
PT100 type thermocouples, PT100 type thermocouple materials are cheap, economical and practical；
A kind of power distribution cabinet temperature protection system according to Fig. 2,4 connecting pin of central processing unit are equipped with local service
Device 12,12 connecting pin of home server are equipped with cloud server 13, are conducive to the alarm signal that central processing unit 4 will detect
The position of breath and alarm is sent to home server 12 and display 5, home server 12 is uploaded to cloud service by information
Device 13, facilitates staff's maintenance and remote monitoring；
A kind of power distribution cabinet temperature protection system according to Fig. 3, it protects system operation step as follows：
Step 1：Respectively in the cabinet 1 of 6 side of inlet wire cable, 8 side of bus-bar, 9 side of outlet cable and power distribution cabinet
Wall mounting temperature sensor 10, then connects central processing unit 4, and central processing unit 4 is connected in parallel to power distribution cabinet main switch 3 and is controlled
In circuit；
Step 2：During whole power distribution cabinet operation, system initialization is protected, temperature sensor 10 monitors temperature everywhere in real time
Degree, and data sending is converted the information into by A/D converter 11 and reads inlet wire cable to central processing unit 4, central processing unit 4
6th, 10 measured value of temperature sensor of 8 side of outlet cable 9 and bus-bar and 10 measured value of temperature sensor of 1 inner wall of cabinet into
Row contrast is handled；
Step 3：10 measured value of temperature sensor at inlet wire cable 6, at outlet cable 9 and at bus-bar 8 is normal
When, then whole power distribution cabinet normal operation；
Step 3：When 10 measured value of temperature sensor at inlet wire cable 6 is normal, the temperature sensing at outlet cable 9
10 measured value of device is more than setting value, and temperature height is alarmed at outlet cable 9, the wiring loosening at outlet cable 9, central processing unit 4
Alarm；
Step 4：When 10 measured value of temperature sensor at the inlet wire cable 6 and at outlet cable 9 is normal, at bus-bar 8
10 measured value of temperature sensor be more than setting value, the high alarm of temperature at bus-bar 8, the wiring loosening at bus-bar 8, centre
Reason device 4 is alarmed；
Step 5：10 measured value of temperature sensor is more than setting value at inlet wire cable 6, temperature sensor at bus-bar 8
When 10 measured values are normal, the wiring loosening at inlet wire cable 6, the high alarm of temperature at inlet wire cable 6, the wiring at inlet wire cable 6
Loosen, central processing unit 4 is alarmed；
Step 6：10 measured value of temperature sensor is more than setting value at inlet wire cable 6 and bus-bar 8, at outlet cable 9
Temperature is high when 10 measured value of temperature sensor is normal, at bus-bar 8 alarms, and the wiring loosening at bus-bar 8, central processing unit 4 is reported
It is alert；
Step 7：10 measured value of temperature sensor at inlet wire cable 6, at outlet cable 9 and at bus-bar 8, which is more than, to be set
During definite value, then whole power distribution cabinet load excessive, central processing unit 4 by alarm delay switch alarm, delay time then, relay
The output cut-out major loop control circuit of device 7, the protection of 3 separating brake of main switch；
Step 8：Central processing unit 4 sends the position of the warning message detected and alarm to home server 12
With display 5, information is uploaded to cloud server 13 by home server 12, facilitates staff's maintenance and remote monitoring.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention,
Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still may be used
To modify to the technical solution described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic,
Within the spirit and principles of the invention, any modification, equivalent replacement, improvement and so on, should be included in the present invention's
Within protection domain.
Claims (7)
1. a kind of power distribution cabinet temperature protection system, including cabinet (1), it is characterised in that：Fire report is equipped with the top of the cabinet (1)
Alert device (2), the cabinet (1) are internally provided with main switch (3), central processing unit (4) and display (5), the central processing unit
(4) main switch (3) side is arranged at, the display (5) is arranged at central processing unit (4) side, main switch (3) side
Inlet wire cable (6) is connected with, main switch (3) bottom is equipped with relay (7), and the main switch (3) passes through with relay (7)
Bus-bar (8) connects, and described relay (7) one end is equipped with outlet cable (9), the inlet wire cable (6), outlet cable (9) and
Bus-bar (8) side and cabinet (1) inner wall are equipped with temperature sensor (10).
A kind of 2. power distribution cabinet temperature protection system according to claim 1, it is characterised in that：The temperature sensor (10)
Model is arranged to WZP-PT100, and the temperature sensor (10) and fire-alarm (2) electrically connect with central processing unit (4)
Connect.
A kind of 3. power distribution cabinet temperature protection system according to claim 1, it is characterised in that：The central processing unit (4)
It is connected in parallel with main switch (3).
A kind of 4. power distribution cabinet temperature protection system according to claim 1, it is characterised in that：The central processing unit (4)
Output terminal is equipped with alarm delay switch.
A kind of 5. power distribution cabinet temperature protection system according to claim 1, it is characterised in that：The temperature sensor (10)
It is electrically connected with central processing unit (4) by A/D converter (11), the temperature sensor (10) and central processing unit (4)
Connection circuit is equipped with PT100 type thermocouples.
A kind of 6. power distribution cabinet temperature protection system according to claim 1, it is characterised in that：The central processing unit (4)
Connecting pin is equipped with home server (12), and home server (12) connecting pin is equipped with cloud server (13).
A kind of 7. power distribution cabinet temperature protection system according to claim 1, it is characterised in that：Protect system operation step such as
Under：
Step 1：Respectively in the cabinet of inlet wire cable (6) side, bus-bar (8) side, outlet cable (9) side and power distribution cabinet
(1) inner wall mounting temperature sensor (10), then connect central processing unit (4), and central processing unit (4) is connected in parallel to power distribution cabinet
In main switch (3) control loop；
Step 2：During whole power distribution cabinet operation, system initialization is protected, temperature sensor (10) monitors temperature everywhere in real time,
And data sending is converted the information into by A/D converter (11) and gives central processing unit (4), central processing unit (4) reads inlet wire
Temperature sensor (10) measured value of cable (6), outlet cable (9) and bus-bar (8) side is passed with the temperature of cabinet (1) inner wall
Sensor (10) measured value carries out contrast processing；
Step 3：When inlet wire cable (6) place, outlet cable (9) place and bus-bar (8) place temperature sensor (10) measured value just
Chang Shi, then whole power distribution cabinet normal operation；
Step 3：When temperature sensor (10) measured value at inlet wire cable (6) place is normal, the temperature at outlet cable (9) place passes
Sensor (10) measured value is more than setting value, the high alarm of outlet cable (9) place temperature, the wiring loosening at outlet cable (9) place, center
Processor (4) is alarmed；
Step 4：When temperature sensor (10) measured value at inlet wire cable (6) place and outlet cable (9) place is normal, bus-bar
(8) temperature sensor (10) measured value at place is more than setting value, the high alarm of bus-bar (8) place temperature, the wiring at bus-bar (8) place
Loosen, central processing unit (4) alarm；
Step 5：When inlet wire cable (6) place temperature sensor (10) measured value is more than setting value, bus-bar (8) place temperature sensing
When device (10) measured value is normal, the wiring loosening at inlet wire cable (6) place, the high alarm of inlet wire cable (6) place temperature, inlet wire cable
(6) wiring loosening at place, central processing unit (4) alarm；
Step 6：When inlet wire cable (6) and bus-bar (8) place temperature sensor (10) measured value are more than setting value, outlet cable
(9) when place's temperature sensor (10) measured value is normal, the high alarm of bus-bar (8) place temperature, the wiring loosening at bus-bar (8) place, in
Central processor (4) is alarmed；
Step 7：When temperature sensor (10) measured value at inlet wire cable (6) place, outlet cable (9) place and bus-bar (8) place is big
When setting value, then whole power distribution cabinet load excessive, central processing unit (4) are arrived by alarm delay switch alarm, delay time
When, relay (7) output cut-out major loop control circuit, the protection of main switch (3) separating brake；
Step 8：Central processing unit (4) sends the position of the warning message detected and alarm to home server (12)
With display (5), information is uploaded to cloud server (13) by home server (12), facilitates staff to overhaul and long-range
Monitoring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711410976.6A CN107947127A (en) | 2017-12-23 | 2017-12-23 | A kind of power distribution cabinet temperature protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711410976.6A CN107947127A (en) | 2017-12-23 | 2017-12-23 | A kind of power distribution cabinet temperature protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107947127A true CN107947127A (en) | 2018-04-20 |
Family
ID=61939890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711410976.6A Pending CN107947127A (en) | 2017-12-23 | 2017-12-23 | A kind of power distribution cabinet temperature protection system |
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| Country | Link |
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| CN (1) | CN107947127A (en) |
Cited By (4)
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| CN109728565A (en) * | 2019-02-13 | 2019-05-07 | 王者龙 | A kind of electric wire heat intelligent monitoring device |
| CN110341535A (en) * | 2019-07-15 | 2019-10-18 | 洛阳光法电气科技有限公司 | A kind of DC charging motor power management apparatus and method |
| CN110571698A (en) * | 2019-10-15 | 2019-12-13 | 国网安徽省电力有限公司阜阳供电公司 | Ring main unit based on high-voltage measurement |
| CN114745615A (en) * | 2022-06-09 | 2022-07-12 | 联科天成(武汉)智能科技有限公司 | Industrial equipment operation data acquisition monitoring method and device |
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| CN110571698A (en) * | 2019-10-15 | 2019-12-13 | 国网安徽省电力有限公司阜阳供电公司 | Ring main unit based on high-voltage measurement |
| CN110571698B (en) * | 2019-10-15 | 2024-03-19 | 国网安徽省电力有限公司阜阳供电公司 | Ring main unit based on high-voltage measurement |
| CN114745615A (en) * | 2022-06-09 | 2022-07-12 | 联科天成(武汉)智能科技有限公司 | Industrial equipment operation data acquisition monitoring method and device |
| CN114745615B (en) * | 2022-06-09 | 2022-08-30 | 联科天成(武汉)智能科技有限公司 | Industrial equipment operation data acquisition monitoring method and device |
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