CN106054000B - It is spaced combining unit power-factor angle consistency on-site test system and test method - Google Patents
It is spaced combining unit power-factor angle consistency on-site test system and test method Download PDFInfo
- Publication number
- CN106054000B CN106054000B CN201610583366.5A CN201610583366A CN106054000B CN 106054000 B CN106054000 B CN 106054000B CN 201610583366 A CN201610583366 A CN 201610583366A CN 106054000 B CN106054000 B CN 106054000B
- Authority
- CN
- China
- Prior art keywords
- combining unit
- interval
- grade
- measured
- standard
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 43
- 238000010998 test method Methods 0.000 title claims abstract description 10
- 230000001360 synchronised effect Effects 0.000 claims description 15
- 238000005070 sampling Methods 0.000 claims description 9
- 238000009432 framing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 238000003556 assay Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 230000002452 interceptive effect Effects 0.000 claims 1
- 208000010086 Hypertelorism Diseases 0.000 abstract 1
- 206010020771 Hypertelorism of orbit Diseases 0.000 abstract 1
- 238000012795 verification Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 4
- 238000004088 simulation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000004209 hair Anatomy 0.000 description 1
- 238000007689 inspection Methods 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Tests Of Electronic Circuits (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The present invention relates to a kind of interval combining unit power-factor angle consistency on-site test system and test methods, are related to smart substation equipment verification field.Test system includes 0.02 grade of band source combining unit tester and 0.05 grade of standard FT3 generating means；The test method：The actual conditions that interval combining unit is cascaded by standard FT3 generating means imitating substations scene busbar combining unit, sample-synchronous precision, power factor angle error and the steady-state error situation of cascade interval combining unit can be tested out by being spaced the numeral output of combining unit by reception with source combining unit tester.The present invention solves the problems, such as that the test that substation field busbar combining unit cascade interval combining unit is brought due to hypertelorism is difficult, greatly simplifies verifying work wiring, shortens the time of debugging.
Description
Technical field
The present invention relates to smart substation equipments to verify field, and in particular to interval combining unit power-factor angle consistency
On-site test system and test method.
Background technology
Currently, domestic digital substation mainly uses the combining unit of analog input to complete front-end collection work, press
According to Q/GDW 11015-2013《Analog input formula combining unit inspection criterion》It is required that the sample-synchronous error of combining unit is not
More than corresponding analog quantity phase error requirement, voltage, electric current phase difference measurement error be exactly power factor measurement error,
And power factor measurement error directly affects active and reactive power measurement and electric energy metering error, it is final to influence electricity trade
The fairness of clearing.Therefore it is necessary to test the power-factor angle consistency for being spaced combining unit.
Generally use method is that the output of busbar combining unit is directly connected to interval by practical span wire system at present
Combining unit, since the busbar combining unit and interval combining unit at scene are apart from farther out, generally there is more than 150 meters, bracing wire is stranded
Difficult big, testing process is cumbersome, and time-consuming, and the long measuring accuracy that will result directly in of circuit declines, therefore this method does not have root
The problem of this solution cascade interval combining unit test.
Invention content
A kind of interval combining unit power-factor angle consistency on-site test system of present invention offer and test method, with solution
The problem for the test difficulty that certainly substation field is brought due to busbar combining unit with interval combining unit distance farther out.It realizes
The sample-synchronous precision of cascade interval combining unit can be tested not changing field connection.
The technical solution adopted by the present invention is that：
A kind of on-site test system of interval combining unit power-factor angle consistency, 0.02 grade of band source combining unit test
The analog voltage output end of instrument, current output terminal respectively with 0.05 grade of standard FT3 generating means and interval combining unit to be measured
Analog input end is connected, the FT3 of the FT3 output ends of 0.05 grade of standard FT3 generating means and interval combining unit to be measured
Receiving terminal is connected, the ethernet port and 0.02 grade of Ethernet with source combining unit tester of interval combining unit to be measured
Port is connected；
Described 0.02 grade with being sampled to the analog voltage current signal of output inside the combining unit tester of source, as
The standard signal of test system receives the IEC61850-9-2 numbers message of combining unit output in interval to be measured as test system
Tested signal；
0.05 grade of standard FT3 generating means samples the analog voltage signal of input, and sample rate is waited for described
The sample rate for surveying interval combining unit is consistent, each sample point data is used for according to FT3 frame format framings, output FT3 messages
Analog bus voltage, bus current；
The interval combining unit to be measured carries out the FT3 messages of reception and analog voltage signal, the current signal of input
Synchronized sampling exports IEC61850-9-2 number messages to described 0.02 grade band source combining unit tester；
Further, 0.05 grade of standard FT3 generating means includes signal condition and acquisition module, FPGA main control modules,
FT3 output modules, human-computer interface module and PPS input expansion modules；The signal condition and acquisition module complete simulation letter
Number acquisition and Digitization；The FPGA main control modules are used to control the acquisition control of signal condition and acquisition module, people
The parsing of machine interface instructions, the framing of FT3 messages, and under synchronous working mode it is synchronous with external PPS synchronizing signals；Institute
It states FT3 output modules and completes the output of FT3 messages；The human-machine interface module passes through I/O mouthfuls and FPGA main control module two-ways
Letter, finishing man-machine interaction function；The PPS input expansion modules are completed to receive the work of external PPS synchronizing signals, make described
0.05 grade of standard FT3 generating means can be operated under the mode of synchronous acquisition.
The present invention proposes a kind of test method of interval combining unit power-factor angle consistency, includes the following steps：
（1）Wiring is merged in substation interval combining unit installation place to be measured using standard FT3 generating means analog bus
Unit forms grade connection line, i.e., with interval combining unit to be measured：0.02 grade of analog voltage with source combining unit tester is defeated
Outlet, current output terminal are connected to the analog input end of interval combining unit to be measured as standard channel, by 0.02 grade of band source
Analog voltage output end, the current output terminal of combining unit tester are connected to 0.05 grade of standard FT3 generating means, by 0.05 grade
The FT3 digital quantities of standard FT3 generating means output are connected to combining unit FT3 receiving terminals in interval to be measured, and interval to be measured merges single
The IEC61850-9-2 digital quantities of member are connected to the Ethernet input end with source combining unit tester by ethernet port and make
To be detected channel；
（2）0.02 grade of test parameter with source combining unit tester is set, including：Output voltage, the amplitude of electric current, phase
Position, frequency, the channel configuration of interval combining unit to be measured, virtual no-load voltage ratio, and it is Asynchronous Mode that test pattern, which is arranged, starts record
Wave energy；
（3）Start 0.02 grade of voltage and current output with source combining unit tester, when 0.02 grade of band source combining unit is surveyed
Examination instrument stops recording when showing tested waveform, thus have recorded the digital quantity of combining unit output in interval to be measured from without value to
There is the process of value；It is reappeared by recording, detects and be detected channel rising whether synchronous with standard channel, you can judge cascade interval
It the case where combining unit is with the presence or absence of the voltage and current delay integer period, is closed so as to assay intervals combining unit and busbar
And the voltage and current being likely to occur when unit cascaded synchronizes the problem of difference integer cycle；
（4）Under conventional asynchronous test, described to be measured is calculated by described 0.02 grade band source combining unit tester
The phase difference between the busbar voltage of combining unit output, bus current, interval voltage, spacing current and corresponding analog quantity；Such as
Fruit phase difference is no more than the phase error requirement of the corresponding class of accuracy of interval combining unit, then to be measured to be spaced adopting for combining unit
Sample synchronization accuracy is qualified, otherwise unqualified；
（5）The phase difference of every phase voltage is subtracted each other with the phase difference of corresponding phase current, you can obtain each phase analog signal and exist
The difference of power-factor angle after combining unit sampling in interval to be measured, if this difference is no more than interval combining unit to be measured
2 times of phase error limit value of class of accuracy, then illustrate that the power-factor angle consistency of interval combining unit to be measured meets
It is required that otherwise unqualified.
Beneficial effects of the present invention：Cascade interval combining unit can be tested not changing field connection by realizing
Sample-synchronous precision, solves that the combining unit test bracing wire of live busbar combining unit cascade interval is difficult, accuracy is low asks
Topic, greatly simplifies verifying work wiring, shortens the time of debugging.
Description of the drawings
Fig. 1 is test principle block diagram of the present invention；
Fig. 2 is the functional block diagram of 0.05 grade of standard FT3 generating means of test system of the present invention；
Fig. 3 is the flow chart of test method of the present invention.
Specific implementation mode
A kind of on-site test system of interval combining unit power-factor angle consistency, 0.02 grade of band source combining unit test
The analog voltage output end of instrument, current output terminal respectively with 0.05 grade of standard FT3 generating means and interval combining unit to be measured
Analog input end is connected, the FT3 of the FT3 output ends of 0.05 grade of standard FT3 generating means and interval combining unit to be measured
Receiving terminal is connected, the ethernet port and 0.02 grade of Ethernet with source combining unit tester of interval combining unit to be measured
Port is connected；
Described 0.02 grade with being sampled to the analog voltage current signal of output inside the combining unit tester of source, as
The standard signal of test system receives the IEC61850-9-2 numbers message of combining unit output in interval to be measured as test system
Tested signal；
0.05 grade of standard FT3 generating means samples the analog voltage signal of input, and sample rate is waited for described
The sample rate for surveying interval combining unit is consistent, each sample point data is used for according to FT3 frame format framings, output FT3 messages
Analog bus voltage, bus current；
The interval combining unit to be measured carries out the FT3 messages of reception and analog voltage signal, the current signal of input
Synchronized sampling exports IEC61850-9-2 number messages to described 0.02 grade band source combining unit tester；
Further, 0.05 grade of standard FT3 generating means includes signal condition and acquisition module, FPGA main control modules,
FT3 output modules, human-computer interface module and PPS input expansion modules；The signal condition and acquisition module complete simulation letter
Number acquisition and Digitization；The FPGA main control modules are used to control the acquisition control of signal condition and acquisition module, people
The parsing of machine interface instructions, the framing of FT3 messages, and under synchronous working mode it is synchronous with external PPS synchronizing signals；Institute
It states FT3 output modules and completes the output of FT3 messages；The human-machine interface module passes through I/O mouthfuls and FPGA main control module two-ways
Letter, finishing man-machine interaction function；The PPS input expansion modules are completed to receive the work of external PPS synchronizing signals, make described
0.05 grade of standard FT3 generating means can be operated under the mode of synchronous acquisition.
It is as follows to verify principle：
Standard FT3 generating means and interval combining unit to be measured are cascaded, band source combining unit tester is standard FT3 hairs
Generating apparatus applies rated value voltage and current, and the analog voltage current signal of synchronous acquisition output with interval combining unit to be measured
As the standard signal of test system, while receiving the IEC61850-9-2 number message conducts of combining unit output in interval to be measured
The tested signal of test system；The live busbar combining unit of standard FT3 generating means simulation, exports FT3 messages to interval to be measured
Combining unit；Interval combining unit to be measured synchronizes sampling to the FT3 messages of reception and the analog voltage current signal of input,
It exports IEC61850-9-2 number messages and gives band source combining unit tester.
Further, the standard FT3 generating means is integrated in the band source combining unit tester, composition is integrated
Device can be further simplified the wiring of test system, reduce verifying work difficulty.
A kind of test method of interval combining unit power-factor angle consistency, includes the following steps：
（1）Wiring is merged in substation interval combining unit installation place to be measured using standard FT3 generating means analog bus
Unit forms grade connection line, i.e., with interval combining unit to be measured：0.02 grade of analog voltage with source combining unit tester is defeated
Outlet, current output terminal are connected to the analog input end of interval combining unit to be measured as standard channel, by 0.02 grade of band source
Analog voltage output end, the current output terminal of combining unit tester are connected to 0.05 grade of standard FT3 generating means, by 0.05 grade
The FT3 digital quantities of standard FT3 generating means output are connected to combining unit FT3 receiving terminals in interval to be measured, and interval to be measured merges single
The IEC61850-9-2 digital quantities of member are connected to the Ethernet input end with source combining unit tester by ethernet port and make
To be detected channel；
（2）0.02 grade of test parameter with source combining unit tester is set, including：Output voltage, the amplitude of electric current, phase
Position, frequency, the channel configuration of interval combining unit to be measured, virtual no-load voltage ratio, and it is Asynchronous Mode that test pattern, which is arranged, starts record
Wave energy；
（3）Start 0.02 grade of voltage and current output with source combining unit tester, when 0.02 grade of band source combining unit is surveyed
Examination instrument stops recording when showing tested waveform, thus have recorded the digital quantity of combining unit output in interval to be measured from without value to
There is the process of value；It is reappeared by recording, detects and be detected channel rising whether synchronous with standard channel, you can judge cascade interval
It the case where combining unit is with the presence or absence of the voltage and current delay integer period, is closed so as to assay intervals combining unit and busbar
And the voltage and current being likely to occur when unit cascaded synchronizes the problem of difference integer cycle；
（4）Under conventional asynchronous test, described to be measured is calculated by described 0.02 grade band source combining unit tester
The phase difference between the busbar voltage of combining unit output, bus current, interval voltage, spacing current and corresponding analog quantity；Such as
Fruit phase difference is no more than the phase error requirement of the corresponding class of accuracy of interval combining unit, then to be measured to be spaced adopting for combining unit
Sample synchronization accuracy is qualified, otherwise unqualified；
（5）The phase difference of every phase voltage is subtracted each other with the phase difference of corresponding phase current, you can obtain each phase analog signal and exist
The difference of power-factor angle after combining unit sampling in interval to be measured, if this difference is no more than interval combining unit to be measured
2 times of phase error limit value of class of accuracy, then illustrate that the power-factor angle consistency of interval combining unit to be measured meets
It is required that otherwise unqualified.
Claims (6)
1. a kind of interval combining unit power-factor angle consistency on-site test system, it is characterised in that：0.02 grade of band source merges
The analog voltage output end of unit testing instrument, the analog input end phase of current output terminal and 0.05 grade of standard FT3 generating means
Even, the mould of 0.02 grade of analog voltage output end with source combining unit tester, current output terminal and interval combining unit to be measured
Analog quantity input terminal is connected, and the FT3 output ends of 0.05 grade of standard FT3 generating means and the FT3 of interval combining unit to be measured connect
Receiving end is connected, the ethernet port and 0.02 grade of ethernet side with source combining unit tester of interval combining unit to be measured
Mouth is connected.
2. a kind of interval combining unit power-factor angle consistency on-site test system according to claim 1, feature
It is：Described 0.02 grade with being sampled to the analog voltage current signal of output inside the combining unit tester of source, as survey
The standard signal of test system receives the IEC61850-9-2 numbers message of combining unit output in interval to be measured as test system
Tested signal.
3. a kind of interval combining unit power-factor angle consistency on-site test system according to claim 1, feature
It is：0.05 grade of standard FT3 generating means samples the analog voltage signal and analog current signal of input, sampling
Rate is consistent with the interval sample rate of combining unit to be measured, each sample point data is according to FT3 frame format framings, output
FT3 messages are used for analog bus voltage, bus current.
4. a kind of interval combining unit power-factor angle consistency on-site test system according to claim 1, feature
It is：The interval combining unit to be measured synchronizes the FT3 messages of reception and analog voltage signal, the current signal of input
Sampling exports IEC61850-9-2 number messages to described 0.02 grade band source combining unit tester.
5. a kind of interval combining unit power-factor angle consistency on-site test system according to claim 1 or 3, special
Sign is：0.05 grade of standard FT3 generating means includes signal condition and acquisition module, FPGA main control modules, FT3 output moulds
Block, human-computer interface module and PPS input expansion modules；The signal condition and acquisition module complete analog signal acquisition and
Digitization；The FPGA main control modules are used to control the acquisition control of signal condition and acquisition module, man-machine interface instruction
Parsing, the framing of FT3 messages, and under synchronous working mode it is synchronous with external PPS synchronizing signals；The FT3 outputs
Module completes the output of FT3 messages；The human-machine interface module is completed man-machine by I/O mouthfuls and FPGA main control module two-way communications
Interactive function；The PPS input expansion modules are completed to receive the work of external PPS synchronizing signals, make 0.05 grade of standard FT3
Generating means can be operated under the mode of synchronous acquisition.
6. a kind of test method of interval combining unit power-factor angle consistency, includes the following steps：
(1) wiring merges list in substation interval combining unit installation place to be measured using standard FT3 generating means analog bus
Member forms grade connection line, i.e., with interval combining unit to be measured：By 0.02 grade of analog voltage output with source combining unit tester
End, current output terminal are connected to the analog input end of interval combining unit to be measured as standard channel, and 0.02 grade of band source is closed
And analog voltage output end, the current output terminal of unit testing instrument are connected to 0.05 grade of standard FT3 generating means, and 0.05 grade is marked
The FT3 digital quantities of quasi- FT3 generating means output are connected to combining unit FT3 receiving terminals in interval to be measured, interval combining unit to be measured
IEC61850-9-2 digital quantities the Ethernet input end with source combining unit tester be connected to by ethernet port be used as
Tested channel；
(2) 0.02 grade of test parameter with source combining unit tester is set, including：Output voltage, the amplitude of electric current, phase,
Frequency, the channel configuration of interval combining unit to be measured, virtual no-load voltage ratio, and it is Asynchronous Mode that test pattern, which is arranged, starts recording
Function；
(3) start 0.02 grade of voltage and current output with source combining unit tester, when 0.02 grade of band source combining unit tester
When showing tested waveform, stop recording, thus have recorded the digital quantity of combining unit output in interval to be measured from without value to there is value
Process；It is reappeared by recording, detects and be detected channel rising whether synchronous with standard channel, you can the cascade interval of judgement merges
The case where unit is with the presence or absence of the voltage and current delay integer period, merge list with busbar so as to assay intervals combining unit
The voltage and current being likely to occur when member cascade synchronizes the problem of difference integer cycle；
(4) under conventional asynchronous test, the interval to be measured is calculated by described 0.02 grade band source combining unit tester and is closed
And the busbar voltage of unit output, bus current, interval voltage, phase difference between spacing current and corresponding analog quantity；If phase
Potential difference is no more than the phase error requirement of the corresponding class of accuracy of interval combining unit, then the sampling of interval combining unit to be measured is same
It is qualified to walk precision, it is otherwise unqualified；
(5) phase difference of every phase voltage is subtracted each other with the phase difference of corresponding phase current, you can obtain each phase analog signal and passing through
The difference of power-factor angle after combining unit sampling in interval to be measured, if this difference is no more than the standard of interval combining unit to be measured
2 times of the phase error limit value of exactness grade then illustrate that the power-factor angle consistency of interval combining unit to be measured meets the requirements,
Otherwise unqualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610583366.5A CN106054000B (en) | 2016-07-22 | 2016-07-22 | It is spaced combining unit power-factor angle consistency on-site test system and test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610583366.5A CN106054000B (en) | 2016-07-22 | 2016-07-22 | It is spaced combining unit power-factor angle consistency on-site test system and test method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106054000A CN106054000A (en) | 2016-10-26 |
| CN106054000B true CN106054000B (en) | 2018-08-28 |
Family
ID=57418587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610583366.5A Active CN106054000B (en) | 2016-07-22 | 2016-07-22 | It is spaced combining unit power-factor angle consistency on-site test system and test method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106054000B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300651A (en) * | 2017-07-24 | 2017-10-27 | 中国电力科学研究院 | A kind of digital quantity input type standard combining unit |
| CN109030971B (en) * | 2018-04-12 | 2020-02-21 | 广东电网有限责任公司 | Method for forming flexible direct current FT3 message template library |
| CN112014669A (en) * | 2020-08-25 | 2020-12-01 | 武汉中元华电电力设备有限公司 | Online detection method and system for angle difference and ratio difference of merging unit |
| CN117154798B (en) * | 2023-10-26 | 2024-01-09 | 深圳市德兰明海新能源股份有限公司 | Three-phase energy storage system and CT correction method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305893A (en) * | 2011-05-25 | 2012-01-04 | 湖南省电力公司科学研究院 | Method and device for checking power-factor angle of high voltage line of intelligent substation on site |
| CN202443082U (en) * | 2012-02-24 | 2012-09-19 | 江苏凌创电气自动化股份有限公司 | Merging unit test system with analog input and university |
| CN103439597A (en) * | 2013-08-06 | 2013-12-11 | 国家电网公司 | Merging unit synchronous punctual tester based on analog quantity digitized transmission and method therefore |
| CN103558571A (en) * | 2013-11-08 | 2014-02-05 | 国家电网公司 | Calibration system of electronic transformer and merging unit |
| CN103941211A (en) * | 2014-05-12 | 2014-07-23 | 国家电网公司 | Novel automatic checking method of analogue input merging unit |
| CN104360298A (en) * | 2014-11-12 | 2015-02-18 | 国家电网公司 | Performance test system and method for merging unit tester |
| CN204925260U (en) * | 2015-07-03 | 2015-12-30 | 国家电网公司 | Intelligent substation small -signal communication test equipment |
| CN205826779U (en) * | 2016-07-22 | 2016-12-21 | 吉林省电力科学研究院有限公司 | A kind of interval combining unit power-factor angle concordance on-site test system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008211891A (en) * | 2007-02-26 | 2008-09-11 | Hitachi Ltd | Digital protection relay |
| GB2506135B (en) * | 2012-09-20 | 2018-04-11 | Tyrrell Products Ltd | Branch circuit monitoring |
-
2016
- 2016-07-22 CN CN201610583366.5A patent/CN106054000B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305893A (en) * | 2011-05-25 | 2012-01-04 | 湖南省电力公司科学研究院 | Method and device for checking power-factor angle of high voltage line of intelligent substation on site |
| CN202443082U (en) * | 2012-02-24 | 2012-09-19 | 江苏凌创电气自动化股份有限公司 | Merging unit test system with analog input and university |
| CN103439597A (en) * | 2013-08-06 | 2013-12-11 | 国家电网公司 | Merging unit synchronous punctual tester based on analog quantity digitized transmission and method therefore |
| CN103558571A (en) * | 2013-11-08 | 2014-02-05 | 国家电网公司 | Calibration system of electronic transformer and merging unit |
| CN103941211A (en) * | 2014-05-12 | 2014-07-23 | 国家电网公司 | Novel automatic checking method of analogue input merging unit |
| CN104360298A (en) * | 2014-11-12 | 2015-02-18 | 国家电网公司 | Performance test system and method for merging unit tester |
| CN204925260U (en) * | 2015-07-03 | 2015-12-30 | 国家电网公司 | Intelligent substation small -signal communication test equipment |
| CN205826779U (en) * | 2016-07-22 | 2016-12-21 | 吉林省电力科学研究院有限公司 | A kind of interval combining unit power-factor angle concordance on-site test system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106054000A (en) | 2016-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103792508B (en) | The error testing system of the digitized measurement device and method of testing | |
| CN106054000B (en) | It is spaced combining unit power-factor angle consistency on-site test system and test method | |
| CN102608450B (en) | Testing and verifying system appropriate for intelligent transformer substation and verifying method | |
| CN205067716U (en) | Online calibration system of electric energy meter | |
| CN2906632Y (en) | Portable dynamic PMU performance tester | |
| CN103792419B (en) | Realize analog quantity and mix the synchronous sampling method accessed with digital quantity | |
| CN107741549B (en) | Based on analog quantity and the synchronous intelligent substation synchronism tester occurred of digital quantity | |
| CN104360298A (en) | Performance test system and method for merging unit tester | |
| CN104198977B (en) | Accuracy detection method based on average power error for analog input combining unit | |
| CN104102122A (en) | Hand-held time synchronization tester | |
| WO2013091277A1 (en) | Iec61850-based synchronization performance test method for digital relay protection device | |
| Adamo et al. | A proposal for an open source energy meter | |
| CN105301552A (en) | Electric energy metering device online verification system | |
| Adamo et al. | Channel characterization of an open source energy meter | |
| CN103901384A (en) | Device and method for detecting analog quantity output standard power source and digital quantity output standard power source | |
| CN105242230A (en) | Merging unit mutual inductor transient state performance detection method based on virtual instrument | |
| CN106501764B (en) | The real-time contrastive test method of the online electric energy error of intelligent substation electric energy meter | |
| CN204256149U (en) | A kind of Performance Test System of merge cells tester | |
| CN105866576A (en) | Simulation detection system of intelligent transformer station secondary-side electric energy metering error influence, and detection analysis method | |
| CN103823200A (en) | Method for detecting distributed PMU | |
| CN101452638B (en) | Electrical energy meter or power load administrative terminal verifying device | |
| CN204287355U (en) | The specified time-delay detection system of Intelligent substation merging unit | |
| CN205826779U (en) | A kind of interval combining unit power-factor angle concordance on-site test system | |
| CN103698728B (en) | A kind of tester and method of testing thereof of testing PMU measurement device precision | |
| CN106341744B (en) | A kind of system and method for testing synchronous passive optical network synchronizing characteristics |
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 | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230625 Address after: 130000 No.2000 Qianjin Street, high tech Zone, Changchun City, Jilin Province Patentee after: JILIN PROVINCE ELECTRIC POWER RESEARCH INSTITUTE Ltd. Patentee after: JILIN PROVINCE ELECTRIC POWER RESEARCH INSTITUTE OF JILIN ELECTRIC POWER Co.,Ltd. Patentee after: State Grid Corporation of China Patentee after: Jilin Electric Power Technology Development Co.,Ltd. Address before: No. 4433, Renmin Street, Changchun City, Jilin Province, 130000 Patentee before: JILIN PROVINCE ELECTRIC POWER RESEARCH INSTITUTE Ltd. Patentee before: JILIN PROVINCE ELECTRIC POWER RESEARCH INSTITUTE OF JILIN ELECTRIC POWER Co.,Ltd. Patentee before: State Grid Corporation of China |
|
| TR01 | Transfer of patent right |