CN106646080A - Intelligent monitoring terminal for low-voltage power grid - Google Patents
Intelligent monitoring terminal for low-voltage power grid Download PDFInfo
- Publication number
- CN106646080A CN106646080A CN201611128979.6A CN201611128979A CN106646080A CN 106646080 A CN106646080 A CN 106646080A CN 201611128979 A CN201611128979 A CN 201611128979A CN 106646080 A CN106646080 A CN 106646080A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 36
- 230000003750 conditioning effect Effects 0.000 claims abstract description 29
- 230000007935 neutral effect Effects 0.000 claims abstract description 23
- 238000007689 inspection Methods 0.000 claims description 22
- 238000004088 simulation Methods 0.000 claims description 8
- 239000004973 liquid crystal related substance Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 230000009466 transformation Effects 0.000 abstract 2
- 230000032258 transport Effects 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000002463 transducing effect Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses an intelligent monitoring terminal for a low-voltage power grid. The monitoring terminal carries out the collection and conditioning of a residual current, a neutral current and transformer temperature of a station transformer and the processing of the residual current, the neutral current and transformer temperature of the station transformer through a 16-bit single-chip microcomputer, and then transmits an obtained result to a 4-way relay control circuit module. The result is uploaded to a power supply monitoring system through standard power distribution and transformation monitoring and metering terminals of all stations, and the 16-bit single-chip microcomputer monitors the switching states of one main switch and three branch switches of the transformer, and uploads the information to a power distribution and transformation monitoring and metering device. The terminal provided by the invention can achieve the real-time monitoring of the power utilization states of each transformer station, and finally can provide a reliable basis for the solving of current leakage of a low-voltage line.
Description
Technical field
The present invention relates to monitoring power distribution areas of information technology, more particularly, to a kind of intelligent monitoring terminal of low voltage electric network.
Background technology
At present, in addition to terminal leakage switch is applied widely, the overwhelming majority is opened installed in the electric leakage of nonterminal
Pass does not obtain the accreditation of user.Trace it to its cause is that the Frequent trip of unknown cause or the self performance quality of leakage switch are owed
Good and misoperation for causing etc. causes the security reliability at customer power supply end not good enough with seriality.Thus installed in the leakage of nonterminal
The creepage protection function Jing of electric switch is often voluntarily cut off by user, is performed practically no function.
Such case defines a stern challenge to power supply department, if because power supply department is to real in supply line
If the earth leakage current that border is present can not be supervised, will be to people, animal and power supply unit（Such as transformator）Bring
Great potential safety hazard.
The content of the invention
It is an object of the invention to provide a kind of intelligent monitoring terminal of low voltage electric network, device Neng Jianggetai areas transformator
The monitoring result of every electrical quantity such as scene electric leakage, neutral current and transformer temperature be uploaded to power supply monitoring system, from
And realize carries out monitor in real time to each transformer platform area with electricity condition, and can be finally solution low-voltage circuit leakage current
Problem provides reliable basis.
A kind of intelligent monitoring terminal of low voltage electric network, the intelligent monitoring terminal is by residual current signal acquisition module, neutrality
Line current signal acquisition module, temperature signal collection circuit module, the 1st positive half-wave signal conditioning circuit module, the 1st negative half-wave letter
Number conditioning circuit module, the 2nd positive half-wave signal conditioning circuit module, the 2nd negative half-wave voltage signal conditioning circuit module, analogue signal are adjusted
Reason circuit module, the 1st self-inspection base modules, the 2nd self-inspection base modules, the 3rd self-inspection base modules, 16 single-chip microcomputers, simulation leakages
Electric signal generator, Liquid Crystal Module, No. 4 control relay circuit modules, 4 road 220V input signal sample circuit modules and button
Module is constituted, the residual current I of transformatorΔPort is connected with residual current signal acquisition module input, residual current signal
Acquisition module outfan respectively by the 1st positive half-wave signal conditioning circuit module and the 1st negative half-wave voltage signal conditioning circuit module with
16 single-chip microcomputer input connections, transformator neutral current Io ports connect with neutral current signal acquisition module input
Connect, neutral current signal acquisition module outfan is respectively by the 2nd positive half-wave signal conditioning circuit module and the 2nd negative half-wave letter
Number conditioning circuit module is connected with 16 single-chip microcomputer inputs, and transformer temperature T-port is defeated with temperature signal collection circuit module
Enter end connection, temperature signal collection circuit module outfan is by analog signal conditioner circuit module and 16 single-chip microcomputer inputs
Connection, the simulation electric leakage signal for simulating the generation of electric leakage signal generator passes through respectively the 1st self-inspection base Jing after 16 single-chip microcomputers are processed
Quasi-mode block transports to residual current signal acquisition module input, transport to neutral current signal by the 2nd self-inspection base modules adopts
Collect module input, temperature signal collection circuit module input is transported to by the 3rd self-inspection base modules, 16 single-chip microcomputers outputs
End is connected with No. 4 control relay circuit module inputs, No. four outfans of No. 4 control relay circuit modules respectively with outward
If the four road inputs correspondences of distribution transformer monitoring and metering terminal module of transformer platform area connect, 4 road 220V input signals samplings
Four road inputs of circuit module main switch, the 1st switch-dividing, the 2nd switch-dividing, the 3rd switch-dividing respectively with the transformator of peripheral hardware
Correspondence connection, 4 road 220V input signals sample circuit module outfans are connected with 16 single-chip microcomputer inputs, key-press module output
End is connected with 16 single-chip microcomputer inputs, and 16 single-chip microcomputer outputs are connected with Liquid Crystal Module input.
Compared with prior art, the present invention has following remarkable result：
The intelligent monitoring terminal of this low voltage electric network is mounted in each transformer platform area of power supply department administration, by these intelligence
The scene electric leakage of energy monitoring terminal Neng Jianggetai areas transformator, the monitoring of three electrical quantitys of neutral current and transformer temperature knot
Fruit is uploaded to power supply monitoring system by means of the distribution transformer monitoring and metering terminal module of the existing standard type in Ge Tai areas, it is achieved thereby that
Carry out monitor in real time with electricity condition to each transformer platform area, and finally can to solve the problems, such as that low-voltage circuit leakage current is provided
By foundation.
Description of the drawings
Fig. 1 is a kind of intelligent monitoring terminal electricity theory structure block diagram of low voltage electric network of the invention.
Specific embodiment
The present invention is further elaborated by example below.
Shown in Figure 1, a kind of intelligent monitoring terminal of low voltage electric network is by the residual current signal acquisition module 2, neutral conductor
Current signal collection module 4, temperature signal collection circuit module 5, the 1st positive half-wave signal conditioning circuit module 6, the 1st negative half-wave
Signal conditioning circuit module 7, the 2nd positive half-wave signal conditioning circuit module 8, the 2nd negative half-wave voltage signal conditioning circuit module 9, simulation
Signal conditioning circuit module 11, the 1st self-inspection base modules 1, the 2nd self-inspection base modules 3,10,16 lists of the 3rd self-inspection base modules
Piece machine 12, simulation electric leakage signal generator 13, Liquid Crystal Module 14, No. 4 control relay circuit modules 15,4 road 220V input letters
Number sample circuit module 16 and key-press module 17 are constituted, the residual current I of transformatorΔPort and residual current signal acquisition module
2 inputs connect, and the outfan of residual current signal acquisition module 2 is respectively by the 1st positive half-wave signal conditioning circuit module 6 and the
1 negative half-wave voltage signal conditioning circuit module 7 is connected with 16 inputs of single-chip microcomputer 12, transformator neutral current Io ports with it is neutral
The input of line current signal acquisition module 4 connects, and the outfan of neutral current signal acquisition module 4 passes through respectively the 2nd positive half-wave
The negative half-wave voltage signal conditioning circuit module 9 of signal conditioning circuit module 8 and the 2nd is connected with 16 inputs of single-chip microcomputer 12, transformator
Temperature T-port is connected with the input of temperature signal collection circuit module 5, and the outfan of temperature signal collection circuit module 5 passes through mould
Intend signal conditioning circuit module 11 to be connected with 16 inputs of single-chip microcomputer 12, simulate the simulation leakage that electric leakage signal generator 13 is produced
It is defeated that the signal of telecommunication transports to residual current signal acquisition module 2 by the 1st self-inspection base modules 1 respectively Jing after 16 single-chip microcomputers 12 are processed
Enter end, the input of neutral current signal acquisition module 4 is transported to by the 2nd self-inspection base modules 3, by the 3rd self-inspection benchmark mould
Block 10 transports to the input of temperature signal collection circuit module 5,16 outfans of single-chip microcomputer 12 and No. 4 control relay circuit modules
15 inputs connect, No. four outfans of No. 4 control relay circuit modules 15 respectively with the distribution transforming of the transformer platform area of peripheral hardware
Four road inputs correspondences of monitoring and metering terminal module 23 connect, and four tunnels of 4 road 220V input signal sample circuits modules 16 are defeated
Enter end main switch 19 respectively with the transformator 18 of peripheral hardware, the 1st switch-dividing 20, the 2nd switch-dividing 21, the 3rd switch-dividing 22 is corresponding connects
Connect, the outfan of 4 road 220V input signal sample circuits module 16 is connected with 16 inputs of single-chip microcomputer 12, and key-press module 17 is exported
End is connected with 16 inputs of single-chip microcomputer 12, and 16 outfans of single-chip microcomputer 12 are connected with the input of Liquid Crystal Module 14.
The residual current I of transformator 18ΔThe signal arrived by sensor acquisition, via the 1st positive half-wave signal modulate circuit
Module 6, the 1st negative half-wave voltage signal conditioning circuit module 7 are input into 16 single-chip microcomputers 12 after its positive and negative half-wave voltage signal adjustment is amplified
Carry out calculation process.
The signal that the neutral current Io of transformator 18 is arrived by sensor acquisition is via the 2nd positive half-wave signal modulate circuit
Module 8, the 2nd negative half-wave voltage signal conditioning circuit module 9 are input into 16 single-chip microcomputers 12 after its positive and negative half-wave voltage signal adjustment is amplified
Carry out calculation process.
The signal that temperature T of transformator 18 is arrived by sensor acquisition is via analog signal conditioner circuit module 11 by its mould
Intend being input into 16 single-chip microcomputers 12 after signal adjustment is amplified and carry out calculation process.
In order to ensure the residual current I of transformator 18Δ, neutral current Io and transformer temperature T this three roads transducing signal
Monitoring reliability, this device is provided with self-inspection base modules, can be in plant running, the above-mentioned three tunnels signals collecting of real-time monitoring
Whether module is in normal operation.Specific work process is as follows：The sinusoidal signal week produced by simulation electric leakage signal generator 13
Phase property ground is converted to three tunnel self-inspection reference signals via 16 single-chip microcomputers 12, and again via the 1st, the 2nd, the 3rd self-inspection benchmark mould
Block 1,3,10 is respectively sent to residual current signal acquisition module 2, neutral current signal acquisition module 4 and temperature signal collection
Circuit module 5, if 16 single-chip microcomputers 12 can respectively obtain the three tunnels self-inspection reference signal, illustrates above-mentioned three tunnel signals collecting
Module is in normal running.Otherwise 16 single-chip microcomputers 12 will send sound and light alarm signal, remind user to locate in time
Reason.
The switch-dividing 20 of one main switch 19 and the 1st in 16 single-chip microcomputers 12 monitoring transformator, 18 areas, the 2nd switch-dividing 21,
3rd switch-dividing 22 point, conjunction state, so that the information of the four-way switch is uploaded to into distribution transformer monitoring and metering terminal module 23.
16 single-chip microcomputers 12 are by residual current IΔ, the measurement result of neutral current Io and transformer temperature T and total all the way
19, three road switch-dividings of switch point, conjunction state is sent to Liquid Crystal Module 14 and shows.
Key-press module 17 is used for the input of operation control with the man machine interface of monitoring terminal.
Distribution transformer monitoring and metering terminal module in No. 4 control relay circuit modules 15 in this terminal and transformer platform area
The input port of 23 4 tunnel remote signals is connected, if 4 relays of No. 4 control relay circuit modules 15 are all closed,
" 0000 " is then encoded to, reset signal is represented, by that analogy, low voltage electric network intelligent monitoring terminal No. 4 control relay circuit is seen
The definition table of output signal coding.
The main switch 19 of 4 road 220V input signal sample circuits modules 16 in this terminal and platform area transformator 18, the 1st point
The 20, the 2nd switch-dividing 21 of switch, the load end of the 3rd switch-dividing 22 obtain the 4 road 220V input signals that 220V signals are transported in terminal
Sample circuit module 16, and the quantity of state of 4 way switch is judged by 16 single-chip microcomputers 12 and then 4 road Control electricity are controlled
The adhesive of the relay on road.
The residual current I of transformator 18Δ, neutral current Io and the tunnel analog quantitys of transformer temperature T tri- pass through respective letter
16 single-chip microcomputers 12 of 16 single-chip microcomputers 12 and Jing are transported to after number modulate circuit to carry out judging to process and then 4 road Controls of control
The relay adhesive of circuit module 15 refers to the tunnel relay of low voltage electric network intelligent monitoring terminal 4 representing the state of three analog quantitys
The definition table of device control circuit output Signal coding.
Low voltage electric network intelligent monitoring terminal No. 4 control relay circuit output signal coding defines table
Claims (1)
1. a kind of intelligent monitoring terminal of low voltage electric network, it is characterised in that：The intelligent monitoring terminal is by residual current signals collecting
Module（2）, neutral current signal acquisition module（4）, temperature signal collection circuit module（5）, the 1st positive half-wave signal conditioning electricity
Road module（6）, the 1st negative half-wave voltage signal conditioning circuit module（7）, the 2nd positive half-wave signal conditioning circuit module（8）, the 2nd negative half-wave
Signal conditioning circuit module（9）, analog signal conditioner circuit module（11）, the 1st self-inspection base modules（1）, the 2nd self-inspection benchmark mould
Block（3）, the 3rd self-inspection base modules（10）, 16 single-chip microcomputers（12）, simulation electric leakage signal generator（13）, Liquid Crystal Module（14）、
No. 4 control relay circuit modules（15）, 4 road 220V input signal sample circuit modules（16）And key-press module（17）Composition,
The residual current I of transformatorΔPort and residual current signal acquisition module（2）Input connects, residual current signals collecting mould
Block（2）Outfan passes through respectively the 1st positive half-wave signal conditioning circuit module（6）With the 1st negative half-wave voltage signal conditioning circuit module（7）
With 16 single-chip microcomputers（12）Input connection, transformator neutral current Io ports and neutral current signal acquisition module（4）
Input connects, neutral current signal acquisition module（4）Outfan passes through respectively the 2nd positive half-wave signal conditioning circuit module
（8）With the 2nd negative half-wave voltage signal conditioning circuit module（9）With 16 single-chip microcomputers（12）Input connect, transformer temperature T-port with
Temperature signal collection circuit module（5）Input connects, temperature signal collection circuit module（5）Outfan is adjusted by analogue signal
Reason circuit module（11）With 16 single-chip microcomputers（12）Input connects, and simulates electric leakage signal generator（13）The simulation electric leakage of generation
16 single-chip microcomputers of signal Jing（12）Pass through the 1st self-inspection base modules after process respectively（1）Transport to residual current signal acquisition module
（2）Input, by the 2nd self-inspection base modules（3）Transport to neutral current signal acquisition module（4）Input, by the 3rd from
Inspection base modules（10）Transport to temperature signal collection circuit module（5）Input, 16 single-chip microcomputers（12）Outfan and 4 tunnel relays
Device control circuit module（15）Input connects, No. 4 control relay circuit modules（15）No. four outfans respectively with peripheral hardware
Transformer platform area distribution transformer monitoring and metering terminal module（23）Four road inputs correspondences connect, 4 road 220V input signals are adopted
Sample circuit module（16）Four road inputs respectively with the transformator of peripheral hardware（18）Main switch（19）, the 1st switch-dividing（20）,
2 switch-dividings（21）, the 3rd switch-dividing（22）Correspondence connection, 4 road 220V input signal sample circuit modules（16）Outfan and 16
Single-chip microcomputer（12）Input connects, key-press module（17）Outfan and 16 single-chip microcomputers（12）Input connects, 16 single-chip microcomputers
（12）Outfan and Liquid Crystal Module（14）Input connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611128979.6A CN106646080A (en) | 2016-12-09 | 2016-12-09 | Intelligent monitoring terminal for low-voltage power grid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611128979.6A CN106646080A (en) | 2016-12-09 | 2016-12-09 | Intelligent monitoring terminal for low-voltage power grid |
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| Publication Number | Publication Date |
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| CN106646080A true CN106646080A (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611128979.6A Pending CN106646080A (en) | 2016-12-09 | 2016-12-09 | Intelligent monitoring terminal for low-voltage power grid |
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| CN (1) | CN106646080A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111736903A (en) * | 2020-08-03 | 2020-10-02 | 南京万形电气有限公司 | Synchronous acquisition and processing method for low-voltage power grid state information |
| CN113834550A (en) * | 2021-09-24 | 2021-12-24 | 广东佛电电器有限公司 | Intelligent water level monitoring device |
| CN117452282A (en) * | 2023-12-25 | 2024-01-26 | 北京天阳睿博科技有限公司 | Intelligent leakage monitoring terminal for distribution transformer of low-voltage transformer area for coal mine |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201518042U (en) * | 2009-06-03 | 2010-06-30 | 珠海市伊特高科技有限公司 | Distribution transformer monitoring metering terminal |
| CN201518049U (en) * | 2009-08-06 | 2010-06-30 | 南京华瑞杰自动化设备有限公司 | Distribution transformer monitoring metering terminal |
| CN102157982A (en) * | 2011-03-31 | 2011-08-17 | 国电南瑞科技股份有限公司 | Intelligent terminal for power transformer |
| CN102931733A (en) * | 2012-11-19 | 2013-02-13 | 上海市电力公司 | Residual current remote data collection and operation monitoring system |
| CN102928702A (en) * | 2012-10-25 | 2013-02-13 | 长兴县供电局 | Branch loop monitor |
| CN203406679U (en) * | 2013-09-03 | 2014-01-22 | 成都亿成节能技术有限公司 | Side outlet multi-loop monitoring terminal of distribution transform low pressure 380 V of power distribution room |
| CN103713210A (en) * | 2013-11-01 | 2014-04-09 | 天津工业大学 | Dry power transformer monitoring and diagnosis system |
| CN103722276A (en) * | 2013-12-27 | 2014-04-16 | 上海沪工焊接集团股份有限公司 | Peak current feedback circuit used for inverter welding machine |
| CN203616487U (en) * | 2013-09-24 | 2014-05-28 | 天津大学 | Seismic signal collecting node with adjustable sampling rate and self-detecting function |
| CN206292336U (en) * | 2016-12-09 | 2017-06-30 | 广东佛电电器有限公司 | The intelligent monitoring terminal of low voltage electric network |
-
2016
- 2016-12-09 CN CN201611128979.6A patent/CN106646080A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201518042U (en) * | 2009-06-03 | 2010-06-30 | 珠海市伊特高科技有限公司 | Distribution transformer monitoring metering terminal |
| CN201518049U (en) * | 2009-08-06 | 2010-06-30 | 南京华瑞杰自动化设备有限公司 | Distribution transformer monitoring metering terminal |
| CN102157982A (en) * | 2011-03-31 | 2011-08-17 | 国电南瑞科技股份有限公司 | Intelligent terminal for power transformer |
| CN102928702A (en) * | 2012-10-25 | 2013-02-13 | 长兴县供电局 | Branch loop monitor |
| CN102931733A (en) * | 2012-11-19 | 2013-02-13 | 上海市电力公司 | Residual current remote data collection and operation monitoring system |
| CN203406679U (en) * | 2013-09-03 | 2014-01-22 | 成都亿成节能技术有限公司 | Side outlet multi-loop monitoring terminal of distribution transform low pressure 380 V of power distribution room |
| CN203616487U (en) * | 2013-09-24 | 2014-05-28 | 天津大学 | Seismic signal collecting node with adjustable sampling rate and self-detecting function |
| CN103713210A (en) * | 2013-11-01 | 2014-04-09 | 天津工业大学 | Dry power transformer monitoring and diagnosis system |
| CN103722276A (en) * | 2013-12-27 | 2014-04-16 | 上海沪工焊接集团股份有限公司 | Peak current feedback circuit used for inverter welding machine |
| CN206292336U (en) * | 2016-12-09 | 2017-06-30 | 广东佛电电器有限公司 | The intelligent monitoring terminal of low voltage electric network |
Non-Patent Citations (1)
| Title |
|---|
| 张发启 等: "《现代测试技术与应用》", 28 February 2005 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111736903A (en) * | 2020-08-03 | 2020-10-02 | 南京万形电气有限公司 | Synchronous acquisition and processing method for low-voltage power grid state information |
| CN113834550A (en) * | 2021-09-24 | 2021-12-24 | 广东佛电电器有限公司 | Intelligent water level monitoring device |
| CN117452282A (en) * | 2023-12-25 | 2024-01-26 | 北京天阳睿博科技有限公司 | Intelligent leakage monitoring terminal for distribution transformer of low-voltage transformer area for coal mine |
| CN117452282B (en) * | 2023-12-25 | 2024-02-27 | 北京天阳睿博科技有限公司 | Intelligent leakage monitoring terminal for distribution transformer of low-voltage transformer area for coal mine |
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Application publication date: 20170510 |