CN106154062A - A kind of wireless telemetering nuclear phase instrument - Google Patents
A kind of wireless telemetering nuclear phase instrument Download PDFInfo
- Publication number
- CN106154062A CN106154062A CN201610569053.4A CN201610569053A CN106154062A CN 106154062 A CN106154062 A CN 106154062A CN 201610569053 A CN201610569053 A CN 201610569053A CN 106154062 A CN106154062 A CN 106154062A
- Authority
- CN
- China
- Prior art keywords
- controller
- module
- wireless
- wireless communication
- communication module
- 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.)
- Granted
Links
- 238000004891 communication Methods 0.000 claims abstract description 54
- 238000013500 data storage Methods 0.000 claims abstract description 11
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 description 11
- 238000005070 sampling Methods 0.000 description 10
- 230000001360 synchronised effect Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005288 electromagnetic effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/18—Indicating phase sequence; Indicating synchronism
-
- 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
- G01R19/10—Measuring sum, difference or ratio
-
- 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
A kind of wireless telemetering nuclear phase instrument includes main survey module, secondary survey module；Main survey module includes the first controller, the first current signal collector, first current signal collector passes through the first signal converter and the first controller connects, first controller is connected with data storage, and the first controller is sent out or receipt signal by the first wireless communication module；Secondary module of surveying includes second controller, the second current signal collector, second current signal collector is connected with second controller by secondary signal converter, second controller is sent out or receipt signal by the second wireless communication module, and the first wireless communication module and the second wireless communication module are connected by wireless network.It is an advantage of the current invention that employing wireless synchronization sampled voltage, electric current, numerical value of comparing, conclusion is objective, direct, and working strength is greatly reduced.
Description
Technical field
The present invention relates to a kind of wireless telemetering nuclear phase instrument.
Technical background
When in transformer station, put into operation and recover power transmission after bus equipment maintenance in new interval, need by corresponding voltage
Electric parameters after transformer, current transformer conversion carries out phase and amplitude inspection, in order to technical staff finds wiring in time
Mistake or loop fault, thus take appropriate measures and correct.Nowadays the intelligent substation putting into operation, uses conventional mutual mostly
Sensor connect combining unit pattern, owing to these electric parameters are all being converted to digital quantity on the spot, if secondary voltage to be carried out
Phase place and polarity checking work, need to draw a cable at reference side bus PT, by reference quantity access, then carry out at by nuclear phase by
One comparison (such as Fig. 1).Owing to general transformer station is larger, lead minimum tens meters of temporary cable, elder up to three or four hundred meters, and
Many people are also needed to coordinate, so using this conventional method, it appears complicated and time-consuming, laborious during interim access related electric amount.For
Carry out nuclear phase putting into operation by connecing temporary track on after-current loop, it is possible that open circuit situation, so traditional cable accesses core
The inspection of inapplicable current loop to polarity method.
Content of the invention
The technical problem to be solved in the present invention is to provide a kind of wireless telemetering nuclear phase instrument, use wireless synchronization sampled voltage,
Electric current, numerical value of comparing, conclusion is objective, direct, working strength is greatly reduced, improves operating efficiency.
The object of the present invention is achieved like this: a kind of wireless telemetering nuclear phase instrument includes main survey module, secondary survey module；
Described main survey module includes the first controller, the first current signal collector, data storage, the first current signal collection
Device passes through the first signal converter and the first controller connects, and the first controller is connected with data storage, and the first controller leads to
Cross the first wireless communication module to send out or receipt signal；
Described secondary module of surveying includes second controller, the second current signal collector, and the second current signal collector passes through second
Signal converter is connected with second controller, and second controller is sent out or receipt signal by the second wireless communication module,
First wireless communication module and the second wireless communication module are connected by wireless network.
Further, main survey module also includes the first timer, and the first timer is stored with data by the first controller
Device connects；
Described secondary module of surveying also includes the second timer, and the second timer is connected with second controller.
Further, main survey module also includes Signal Booster, and the first wireless communication module is connected with Signal Booster, the
One wireless communication module sends out signal by Signal Booster.
It is also possible that Signal Booster is connected with wireless signal acquisition device.
Further, wireless telemetering nuclear phase instrument also includes trunk module；
Described trunk module includes the 3rd wireless communication module, the 3rd controller, the 3rd controller and the 3rd wireless communication module
Connecting, the 3rd controller is connected with alarm.
Further, the first controller and second controller use MCU chip and peripheral circuit, embedded system, special
Integrated circuit or the hardware platform of PDA or Portable intelligent terminal.
It is also possible that embedded system includes embedded microprocessor and peripheral circuit, described embedded microprocessor is permissible
Use ARM, DSP or FPGA.
It is an advantage of the current invention that and be synchronized sampling by wireless synchronization signal control both end voltage, electric current, and carry out
Intuitively demonstrating the difference of amplitude, phase place and the both sides of both sides comparative quantity, solving conventional method needs a large amount of manpower to lead to face
When the comparison of voltage that carries out of cable, captured a comparison verification difficult problem for the magnitude of current apart from each other.
Brief description
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
If Fig. 1 is existing voltage transformer actual measurement voltage, the method for electric current.
If Fig. 2 is present configuration schematic diagram.
If Fig. 3 is preferred structure schematic diagram of the present invention.
As surveyed modular structure schematic diagram based on Fig. 4.
As Fig. 5 surveys modular structure schematic diagram for pair.
As surveyed module preferred structure schematic diagram based on Fig. 6.
If Fig. 7 is trunk module structural representation.
If Fig. 8 is for inventing another preferred structure schematic diagram.
Such as figure, main survey module 1, secondary survey module 2, the first controller the 11st, the first current signal collector the 12nd, data storage
13, the first signal converter 14, the first wireless communication module 15, the first timer 16, Signal Booster 17, wireless signal acquisition
Device 18, second controller the 21st, the second current signal collector 22, secondary signal converter 23, the second wireless communication module 24, the
Two timers 25, trunk module 3, three wireless communication modules the 31st, the 3rd controller 32, alarm 33.
Detailed description of the invention
Seeing Fig. 1, a kind of wireless telemetering nuclear phase instrument includes that main survey module is the 1st, secondary and surveys module 2；
In Fig. 4, main survey module 1 includes that the first controller the 11st, the first current signal collector the 12nd, data storage 13(is arranged
Data storage 13 can carry out real-time collecting to data), the first current signal collector 12 passes through the first signal converter 14
Being connected with the first controller 11, the first controller 11 is connected with data storage 13, and the first controller 11 passes through the first channel radio
News module 15 sends out or receipt signal；
In Fig. 5, secondary module 2 of surveying includes second controller the 21st, the second current signal collector 22, the second current signal collector
22 are connected with second controller 21 by secondary signal converter 23, second controller 21 by the second wireless communication module 24 to
Send outward or receipt signal,
First wireless communication module 14 is connected by wireless network with the second wireless communication module 23.
During work, the first electric current letter collector 12(of main survey module 1 is possible not only to gather current value, can also gather
Magnitude of voltage) it is connected at reference side power supply, the second current collector 22 that pair is surveyed module 2 is possible not only to gather current value, goes back
Magnitude of voltage can be gathered) it is connected to treat that, outside the power supply of core side, the numerical value of collection is turned by the first current collector 12 through the first signal
Change device 14 and be converted into A/D data-signal, and be delivered to data storage 13 and the first wireless telecommunications mould by the first controller 11
Block 15, the first wireless communication module 15 is received by wireless network or carries data, and the first controller 11 also can pass through first
Wireless communication module 15 is sent out signal；Second current collector 22 by gather numerical value through secondary signal converter 23 turns
Turn to A/D data-signal, and be delivered to the second wireless communication module 24, the second wireless communication module 24 by second controller 21
Received by wireless network or carry number；
During test, the signal of collection is flowed to the first wireless communication module 15, the first channel radio by the second wireless communication module 24
After news module 15 receives data, entering data into the first controller 11, the first controller 11 is by the second current signal collector 22
The data that the data gathering and the first current signal collector 12 gather compare and (carry out polarity, phase place, amplitude to reference quantity
Verification property compares, and is processed amplitude, phase place and the angular difference demonstrating in real time between each amount by calculating), because of two collection points
Position difference be less than hundreds of rice, and use wireless communication transmission technology, the two data almost it can be assumed that for simultaneously (with
Step) gather,
Main survey module is the 1st, secondary surveys module 2, and workman can be used to start shooting, or the program timing start being arranged by inside, main survey
Module is the 1st, secondary to be surveyed after module 2 all starts shooting, and it is right mutually to be found by the first wireless communication module 15 and the second wireless communication module 24
Holding handshake to set up communication and connect, for ensureing both sides synchronized samplings, after two machine communications are set up, main module 1 of surveying can send one
Frame synchronization sampling warning order, now main survey module the 1st, secondary module 2 synchronism detection wait state of surveying, now main survey module the 1st, pair is surveyed
Module 2 is not available for other operations, and main afterwards survey module 1 sends synchronized sampling order,
Synchronized sampling order is sent to secondary module 2 of surveying by main survey module 1 and is divided into following process: the first controller 11 will instruct
Being sent to the first wireless communication module 15, signal is launched by the first wireless communication module 15, the second wireless communication module 24
After receiving this wireless signal, after signal is changed, send second controller 21 to.In this process, owing to wireless signal exists
The speed of air transmission is close to the light velocity, so the transmission time change that wireless signal produces with distance change is negligible not
Meter, it is believed that the transmission delay change of whole process only results from main survey module the 1st, pair and surveys in module 2.
If second controller 21 is connected by serial ports and the second wireless communication module 24, the second wireless communication module 24 from
Receive sample command and have fluctuation (about tens microseconds) to the delay time being passed to second controller 21 by serial ports, can be serious
Have influence on the phase accuracy of synchronized sampling.This patent uses, and the reception of the second wireless communication module 24 is interrupted directly moving to the
On the GPIO of two controllers 21, the second wireless communication module 24 can produce at once after receiving order and interrupt, second controller 21
Sampled by detecting interruption, it is to avoid the synchronized sampling precision producing due to the fluctuation of serial ports reception delay reduces.
In main survey module 1 program, by after sending synchronized sampling instruction, (computational accuracy reaches to wait constant time lag
Us magnitude) method of re-sampling afterwards, it is achieved main survey module the 1st, the secondary synchronized sampling surveying module 2.Use that the method is accessible adopts
Sample phase fluctuation scope is within 0.5 degree.Then main survey module 1 waits the secondary reply data surveying module 2, by the first controller
11 process send the result to Liquid Crystal Module and show, it is also possible to be sent to data center by the first wireless communication module 15
Process,.
Such as Fig. 5, main survey module 1 also includes the first timer 16, and the first timer 16 passes through the first controller 11 and data
Memory 13 connects；During work, the first current signal collector 12 gathers signal and is converted into through the first signal converter 14
After data, by the first controller 11 data memory input 13, meanwhile, the time that the first timer 16 is stored into is also same
When data memory input 13, in data storage 13, by voltage, electric current is equivalent is stored together with the time of input,
Secondary module 2 of surveying also includes the second timer 25, and the second timer 25 is connected with second controller 21, and second controller 21 exists
While receiving the second current signal collector 22 data, by the second timer 25 time data associated, defeated together afterwards
Deliver to main survey module 1, contrast the first current signal collector 12 and the second current signal collector 22 number at the first controller 11
According to when, first pass through and the two time numerical value contrasted, data identical for time numerical value are contrasted, i.e. can avoid because of nothing
By transformer station's electromagnetic effect in line transmitting procedure, and the situation that the data local caused is lost.
In Fig. 6, main survey module 1 also includes Signal Booster 17, the first wireless communication module 15 and Signal Booster 17
Connecting, the first wireless communication module 15 sends out signal by Signal Booster 17.
Preferably, Signal Booster 17 is connected with wireless signal acquisition device 18.
During test, the radio signal that the first wireless communication module 15 periphery surveyed by wireless signal acquisition device 18 is strong and weak, as
Really signal is too weak, i.e. changed electric field electromagnetic induction is relatively strong, needs to increase the first wireless communication module 15 by Signal Booster 17 and believes
Number intensity break the prominent interference to radio signal for the electromagnetic induction.
As Fig. 3,7, wireless telemetering nuclear phase instrument also includes trunk module 3；
Trunk module 3 includes the 3rd wireless communication module the 31st, the 3rd controller 32, the 3rd controller 32 and the 3rd wireless telecommunications mould
Block 31 connects, and the 3rd controller 31 is connected with alarm 33, and during test, the 3rd wireless communication module 31 can receive the first nothing respectively
The data of line communication module the 11st, the second wireless communication module 21, and flow to the 3rd controller 32, it is right that the 3rd controller 32 passes through
Than analyzing, if it find that deviation, then the 3rd controller 32 starts alarm 33, and the method is used for measuring distance more than 100 meters
Situation, measuring distance not only can be stopped by building more than 100 meters, or the interference of electromagnetism, is surveyed by main survey module is the 1st, secondary
Module 2 is directly connected to difficulty, and by being arranged on trunk module 3, main survey module is the 1st, secondary to be surveyed in the middle of module 2, can reduce
Trunk module 3 and main survey module the 1st, the secondary distance surveyed between module 2, do to patent exploitation such that it is able to overcome apart from long
Disturb.
Preferably, the first controller 11 and second controller 21 use MCU chip and peripheral circuit, embedded system, specially
Hardware platform with integrated circuit or PDA or Portable intelligent terminal.
Preferably, embedded system includes embedded microprocessor and peripheral circuit, and described embedded microprocessor is permissible
Use ARM, DSP or FPGA.
Claims (7)
1. a wireless telemetering nuclear phase instrument, it is characterised in that: described wireless telemetering nuclear phase instrument includes main survey module, secondary survey module；
Described main survey module includes the first controller, the first current signal collector, and the first current signal collector passes through first
Signal converter and the first controller connect, and the first controller is connected with data storage, and the first controller is wireless by first
Communication module sends out or receipt signal；
Described secondary module of surveying includes second controller, the second current signal collector, and the second current signal collector passes through second
Signal converter is connected with second controller, and second controller is sent out or receipt signal by the second wireless communication module,
First wireless communication module and the second wireless communication module are connected by wireless network.
2. a kind of wireless telemetering nuclear phase instrument according to claim 1, it is characterised in that: described main survey module also includes first
Timer, the first timer is connected with data storage by the first controller；
Described secondary module of surveying also includes the second timer, and the second timer is connected with second controller.
3. a kind of wireless telemetering nuclear phase instrument according to claim 1, it is characterised in that: described main survey module also includes signal
Booster, the first wireless communication module is connected with Signal Booster, and the first wireless communication module passes through Signal Booster to outgoing
Go out signal.
4. a kind of wireless telemetering nuclear phase instrument according to claim 3, it is characterised in that: described Signal Booster and wireless communication
Number detector connects.
5. a kind of wireless telemetering nuclear phase instrument according to claim 1, it is characterised in that: described wireless telemetering nuclear phase instrument also wraps
Include trunk module；
Described trunk module includes the 3rd wireless communication module, the 3rd controller, the 3rd controller and the 3rd wireless communication module
Connecting, the 3rd controller is connected with alarm.
6. a kind of wireless telemetering nuclear phase instrument according to claim 1, it is characterised in that: described first controller and described the
Two controllers use MCU chip and peripheral circuit, embedded system, special IC or PDA or Portable intelligent terminal
Hardware platform.
7. a kind of wireless telemetering nuclear phase instrument according to claim 6, it is characterised in that: described embedded system includes embedding
Microsever and peripheral circuit, described embedded microprocessor can use ARM, DSP or FPGA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610569053.4A CN106154062B (en) | 2016-07-19 | 2016-07-19 | Wireless telemetry nuclear phase instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610569053.4A CN106154062B (en) | 2016-07-19 | 2016-07-19 | Wireless telemetry nuclear phase instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106154062A true CN106154062A (en) | 2016-11-23 |
| CN106154062B CN106154062B (en) | 2024-01-16 |
Family
ID=58060525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610569053.4A Active CN106154062B (en) | 2016-07-19 | 2016-07-19 | Wireless telemetry nuclear phase instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106154062B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106841780A (en) * | 2016-12-30 | 2017-06-13 | 易瓦特科技股份公司 | Long-range nuclear-phase method and device |
| CN108303142A (en) * | 2018-03-23 | 2018-07-20 | 广州市科钛科技有限公司 | Determine phase nuclear phase, electric current, the harvester of voltage and system for telecommunication network base station |
| CN109444508A (en) * | 2018-11-02 | 2019-03-08 | 国家电网公司 | A kind of acquisition method of voltage phasor, apparatus and system |
| CN109596904A (en) * | 2019-01-15 | 2019-04-09 | 国家电网有限公司 | A kind of synchro measure and auto-check system and method based on wireless telecommunications |
| CN109828144A (en) * | 2019-03-08 | 2019-05-31 | 李玉诚 | It is a kind of to acquire the measuring system and measurement method that compare for the strange land data same period |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100412772B1 (en) * | 2003-08-27 | 2003-12-31 | Hankook Electric Technical Co | Remote monitor of electricity incoming and distributing equipment having power line communication modem |
| CN1737583A (en) * | 2005-07-27 | 2006-02-22 | 江苏省电力公司常州供电公司 | Indoor looped network cabinet intelligent nuclear phase method |
| CN101339212A (en) * | 2008-08-14 | 2009-01-07 | 西安爱邦电气有限公司 | Non-contact type high voltage phasing tester |
| CN101937028A (en) * | 2009-06-30 | 2011-01-05 | 武汉思威科技投资有限公司 | Wireless nuclear phase instrument |
| CN104092738A (en) * | 2014-06-25 | 2014-10-08 | 国网福建南安市供电有限公司 | Long-distance nuclear phase system and method based on wireless Internet |
-
2016
- 2016-07-19 CN CN201610569053.4A patent/CN106154062B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100412772B1 (en) * | 2003-08-27 | 2003-12-31 | Hankook Electric Technical Co | Remote monitor of electricity incoming and distributing equipment having power line communication modem |
| CN1737583A (en) * | 2005-07-27 | 2006-02-22 | 江苏省电力公司常州供电公司 | Indoor looped network cabinet intelligent nuclear phase method |
| CN101339212A (en) * | 2008-08-14 | 2009-01-07 | 西安爱邦电气有限公司 | Non-contact type high voltage phasing tester |
| CN101937028A (en) * | 2009-06-30 | 2011-01-05 | 武汉思威科技投资有限公司 | Wireless nuclear phase instrument |
| CN104092738A (en) * | 2014-06-25 | 2014-10-08 | 国网福建南安市供电有限公司 | Long-distance nuclear phase system and method based on wireless Internet |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106841780A (en) * | 2016-12-30 | 2017-06-13 | 易瓦特科技股份公司 | Long-range nuclear-phase method and device |
| CN108303142A (en) * | 2018-03-23 | 2018-07-20 | 广州市科钛科技有限公司 | Determine phase nuclear phase, electric current, the harvester of voltage and system for telecommunication network base station |
| CN109444508A (en) * | 2018-11-02 | 2019-03-08 | 国家电网公司 | A kind of acquisition method of voltage phasor, apparatus and system |
| CN109596904A (en) * | 2019-01-15 | 2019-04-09 | 国家电网有限公司 | A kind of synchro measure and auto-check system and method based on wireless telecommunications |
| CN109828144A (en) * | 2019-03-08 | 2019-05-31 | 李玉诚 | It is a kind of to acquire the measuring system and measurement method that compare for the strange land data same period |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106154062B (en) | 2024-01-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106154062A (en) | A kind of wireless telemetering nuclear phase instrument | |
| CN105022020B (en) | Electric energy meter radio frequency electromagnetic field, radio immunity experiment test system and method | |
| CN103389440B (en) | A kind of power fault analysis system | |
| CN103293443A (en) | Overhead wire grounding fault locating method for power distribution network | |
| CN105021891B (en) | Power distribution network base station type phase checking device | |
| CN104092738A (en) | Long-distance nuclear phase system and method based on wireless Internet | |
| CN103823105A (en) | Wireless measurement system for debugging power transmission lines | |
| CN203324380U (en) | Direct-current source system insulation monitoring apparatus and monitoring host thereof | |
| CN206193128U (en) | Electricity theft monitoring device is prevented to multidimension degree | |
| CN103604992A (en) | Wireless nuclear phase on-load correction protection method and system for secondary circuit of substation | |
| CN106559298B (en) | High-precision synchronous data transmission method and device for Ethernet serial port cooperative vibration monitoring system | |
| CN102879718B (en) | Wired-loop-based entire-station monitoring and positioning system and positioning method for partial discharge | |
| CN105301437A (en) | GPS synchronous time service-based substation transformer secondary polarity detection method | |
| CN105842519B (en) | Earthing or grounding means based on GPS second pulse shunts vector test method and its device | |
| CN103152427A (en) | Remote wireless meter-reading control method | |
| CN104914297A (en) | Lightning current parameter detection apparatus and monitoring positioning method | |
| CN205786877U (en) | A kind of wireless telemetering nuclear phase instrument | |
| CN114236315A (en) | Submarine cable running state monitoring device and monitoring method thereof | |
| KR100594778B1 (en) | Tester for detection of 3-phase information, method of the detection and system thereof | |
| CN103823200A (en) | Method for detecting distributed PMU | |
| CN203658521U (en) | Mobile insulation supervision instrument of transformer station DC system | |
| CN105866576A (en) | Simulation detection system of intelligent transformer station secondary-side electric energy metering error influence, and detection analysis method | |
| CN204832432U (en) | Handheld split type partial discharge detector ware | |
| CN203949971U (en) | A kind of transmission line of electricity debugging wireless measuring system | |
| CN104569901B (en) | A kind of detecting system of intelligent electric energy meter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |