CN202057747U - Intelligent secondary circuit vector analyzer - Google Patents
Intelligent secondary circuit vector analyzer Download PDFInfo
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- CN202057747U CN202057747U CN 201120132283 CN201120132283U CN202057747U CN 202057747 U CN202057747 U CN 202057747U CN 201120132283 CN201120132283 CN 201120132283 CN 201120132283 U CN201120132283 U CN 201120132283U CN 202057747 U CN202057747 U CN 202057747U
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Abstract
The utility model relates to an intelligent secondary circuit vector analyzer, which comprises a data acquisition module, a data preparation module, a computational analysis module, an output module and a display module connected in series. The intelligent secondary circuit vector analyzer brings convenience for inspection in running so that workload of maintenance staff of transformer substations is reduced greatly, secondary equipment check and secondary phase check for an intelligent power grid, correction of polarity of various windings of a current transformer is guaranteed, correct connection among an electronic transformer, an acquirer output optical fiber and a combiner is guaranteed, a set parameter of the combiner is corrected, and reliability in running of circuits, main transformers, bus protectors and the like is guaranteed. Accordingly, the intelligent secondary circuit vector analyzer meets requirements for development of the intelligent power grid, and is portable, small, simple and practical.
Description
Technical field
The utility model belongs to electricity field, relates to a kind of intelligent secondary circuit vector analysis instrument.
Background technology
The intelligent substation employing is advanced, reliable, integrated, the intelligent primary equipment of environmental protection; be standardized as basic demand with full station information digitalization, communications platform networkingization, information sharing; automatically finish basic functions such as information acquisition, measurement, control, protection, metering, really realized " primary equipment intellectuality, secondary device networking, communication meet the IEC61850 standard ".Intelligent substation is leading the developing direction of domestic electrical network; also represented the development level of international electrical network; but SV information all transfers to combiner by photosignal between the process layer equipment of intelligent substation and the bay device; and based on process layer network realization information sharing; this has brought acid test for the operation maintenance of smart machine; traditional vector analysis instrument can not satisfy the requirement of intelligent grid, can't finish the on-load verification work and the nuclear phase work of devices such as circuit, main-transformer, bus protection.
The utility model content
The purpose of this utility model provides a kind of intelligent secondary circuit vector analysis instrument; to solve the demand that traditional vector analysis instrument does not satisfy intelligent grid, the problem what the on-load verification work that can't finish devices such as circuit, main-transformer, bus protection work mutually with.
For achieving the above object, intelligent secondary circuit vector analysis instrument of the present utility model comprises:
Data acquisition module is used for linking to each other with SV net or merge cells and gathering three-phase voltage, three-phase current data message;
Data preparation module, the data message that is used for that the data acquisition module is collected are carried out synchronism detection, frame losing is handled;
Computation analysis module is used for the information of data preparation module output is carried out voltage, current information phase place, power calculation, and the information of calculating is handled accordingly and compared;
Output module is used for the analysis and distinguishing object information output with computation analysis module output;
Display module is used for the result of output module output is carried out visualization display;
Described data acquisition module, data preparation module, computation analysis module, output module and display module input, output terminal are connected in turn.
Further, also comprise usb interface module, the output terminal of described output module links to each other with the input end of usb interface module.
Intelligent secondary circuit vector analysis instrument of the present utility model comprises input; the data acquisition module that output terminal connects in turn; data preparation module; computation analysis module; output module and display module; for operating maintenance is provided convenience; alleviate transformer station's work of maintenance personnel burden greatly; realized the verification of intelligent grid secondary device; the secondary nuclear phase; guarantee that each winding polarity of current transformer is correct; guarantee electric mutual inductor; the collector output optical fibre is connected with combiner correctly; the combiner setup parameter is correct; guarantee circuit; main-transformer; device such as bus protection is reliable; meet the requirement of intelligent electrical network development fully, and this vector analysis instrument is portable small and exquisite; simple and practical.
Description of drawings
Fig. 1 is an intelligent secondary circuit vector analysis instrument theory diagram of the present utility model;
Fig. 2 is an intelligent secondary circuit vector analysis instrument schematic appearance of the present utility model;
Fig. 3 is the data processing subroutine flow chart of the utility model embodiment.
Embodiment
As shown in Figure 1, intelligent secondary circuit vector analysis instrument of the present utility model includes data acquisition module, data preparation module, computation analysis module, output module and the display module that input, output port connect in turn, and usb interface module, the output terminal of output module links to each other with the output terminal of usb interface module.
Data acquisition module is used for linking to each other to gather electrical data information such as three-phase voltage, three-phase current with the SV net or the merge cells of intellectuality/digital transformer substation;
Data preparation module, the data message that is used for that the data acquisition module is collected carries out synchronism detection, frame losing processing etc., guarantees that the two-way output signal is synchronous, satisfies the computational analysis requirement;
Computation analysis module is used to receive the output information of data preparation module, and calculating voltage, current information phase place, power information, and the information of calculating is handled accordingly and compared;
Output module is used to export the analysis and distinguishing result of computation analysis module output, and the user can carry out the reading of information, storage and off-line analysis by USB interface;
Display module, be used for the result of output module output is carried out visualization display, whether consistent as phase place at last by the information such as amplitude phase place, performance number and power factor of interface by electric current and voltage, judge whether PT/CT polarity is correct, judge the whether information such as unanimity of two ABC of system three-phases also for the treatment of.
As shown in Figure 2, this intelligent secondary circuit vector analysis instrument is provided with display screen 1, upper and lower, left and right control knob and " returning ", " affirmation " button, and the bottom also is provided with input electricity mouth 2, USB output interface 3 and defeated light inlet 4.The utility model is checked based on network ac circuit in digitizing/intelligent substation, has solved the problem that existing vector analysis instrument can not be used for digitizing/intelligent substation; Each vector in the ac circuit is carried out visual presentation, solved in present intelligence/digital transformer substation the problem of being observed of being difficult to of ac circuit information in the network by the operation maintenance personnel; Each vector of ac circuit is checked and intellectual analysis, can be realized functions such as the verification of secondary circuit on-load, electric current and voltage phase shift inspection; Also can realize the secondary nuclear phase in the primary equipment grid switching operation simultaneously, treat two the system's primary connections and the secondary connection correctness of cyclization and check; Support 60044-8 and two kinds of data patterns of IEC61850 9-2LE, and support the output of merge cells individual fibers and two kinds of access modules of SV net information output simultaneously; The user can by USB interface to data read, storage and off-line analysis; Portable construction is supported electricity mouth and two kinds of access modules of light mouth, and is flexible and convenient to use.
The concrete workflow of this intelligent secondary circuit vector analysis instrument as shown in Figure 3, step is as follows:
(1) intelligent secondary circuit vector analysis instrument is directly adopted delivery outlet by SV network switch mouth or merge cells that the light mouth is connected in intellectuality/digital transformer substation, and data acquisition module is sampled to electric parameters such as three-phase voltage, three-phase currents;
(2) data preparation module judges whether to occur the frame losing in the gatherer process or gathers to interrupt according to the electric parameters that is collected, if nothing, then execution in step (3); If have, judge whether it is to occur this situation for the third time, if, then send and gather the abnormal alarm signal, and withdraw from, restart to gather subroutine after waiting to ascertain the reason;
(3) sampled value of computation analysis module by obtaining obtains the amplitude of voltage, electric current, calculates their phase place then, obtains the phase differential between voltage, between electric current, between voltage and current after subtracting each other respectively;
(4) each road electric current and voltage polar plot that draws, what polar plot showed is the real-time hexagonal vector plot of the voltage and current of measurement, the vector plot drawing rule of acquiescence is at the clock null position with reference to the phase direction, other are respectively clockwise for just drawing with reference to the Reference Phase Angle degree, if certain phase voltage/electric current does not have amplitude, then judge the PT/CT broken string, send alarm signal, reexamine PT/CT after withdrawing from, gather again then; If normal, execution in step (5) then;
(5) if A, B, C three-phase voltage, the rotation of electric current clockwise direction in the vector plot can judge that then the PT/CT wiring is correct, otherwise, judge the PT/CT inverted sequence, send alarm signal, reexamine the PT/CT wiring after withdrawing from, gather again then;
(6) confirm that the electric current and voltage information obtain is correct after, calculate that each road is meritorious, idle, parameters such as applied power value and power factor, these data storage are got up;
(7) judge whether mutual inductor connects polarity correct, and mistake can navigate to a certain phase; When carrying out the secondary nuclear phase, adopt the method for comparing the two-way voltage-phase to treat two systems also and check.The result is stored, and show in the interface cocycle.
Claims (2)
1. intelligent secondary circuit vector analysis instrument is characterized in that, comprising:
Data acquisition module is used for linking to each other with SV net or merge cells and gathering three-phase voltage, three-phase current data message;
Data preparation module, the data message that is used for that the data acquisition module is collected are carried out synchronism detection, frame losing is handled;
Computation analysis module is used for the information of data preparation module output is carried out voltage, current information phase place, power calculation, and the information of calculating is handled accordingly and compared;
Output module is used for the analysis and distinguishing object information output with computation analysis module output;
Display module is used for the result of output module output is carried out visualization display;
Described data acquisition module, data preparation module, computation analysis module, output module and display module input, output terminal are connected in turn.
2. intelligent secondary circuit vector analysis instrument according to claim 1 is characterized in that: also comprise usb interface module, the output terminal of described output module links to each other with the input end of usb interface module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120132283 CN202057747U (en) | 2011-04-29 | 2011-04-29 | Intelligent secondary circuit vector analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120132283 CN202057747U (en) | 2011-04-29 | 2011-04-29 | Intelligent secondary circuit vector analyzer |
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| Publication Number | Publication Date |
|---|---|
| CN202057747U true CN202057747U (en) | 2011-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120132283 Expired - Fee Related CN202057747U (en) | 2011-04-29 | 2011-04-29 | Intelligent secondary circuit vector analyzer |
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| CN (1) | CN202057747U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103543328A (en) * | 2012-07-10 | 2014-01-29 | 施耐德电器工业公司 | Measuring system for measuring at least one electrical quantity, electrical transforming staton comprising such a measuring system and associated measuring method |
| CN103558465A (en) * | 2013-10-29 | 2014-02-05 | 国家电网公司 | Method for on-line precision calibration of 10kV protecting device |
| CN108181516A (en) * | 2017-12-21 | 2018-06-19 | 国网冀北电力有限公司承德供电公司 | A kind of data processing method and device |
| CN109949388A (en) * | 2019-01-31 | 2019-06-28 | 国网山西省电力公司晋城供电公司 | It is a kind of can multinomial calculating electric system vector operation device and method for drafting |
| CN112083372A (en) * | 2020-08-21 | 2020-12-15 | 深圳供电局有限公司 | Current transformer polarity identification method and system |
-
2011
- 2011-04-29 CN CN 201120132283 patent/CN202057747U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103543328A (en) * | 2012-07-10 | 2014-01-29 | 施耐德电器工业公司 | Measuring system for measuring at least one electrical quantity, electrical transforming staton comprising such a measuring system and associated measuring method |
| CN103543328B (en) * | 2012-07-10 | 2017-10-24 | 施耐德电器工业公司 | The measuring system of measuring electric quantity including its transformer station and relevant measurement method |
| CN103558465A (en) * | 2013-10-29 | 2014-02-05 | 国家电网公司 | Method for on-line precision calibration of 10kV protecting device |
| CN108181516A (en) * | 2017-12-21 | 2018-06-19 | 国网冀北电力有限公司承德供电公司 | A kind of data processing method and device |
| CN109949388A (en) * | 2019-01-31 | 2019-06-28 | 国网山西省电力公司晋城供电公司 | It is a kind of can multinomial calculating electric system vector operation device and method for drafting |
| CN109949388B (en) * | 2019-01-31 | 2023-05-05 | 国网山西省电力公司晋城供电公司 | Multi-calculation power system vector operation device and drawing method |
| CN112083372A (en) * | 2020-08-21 | 2020-12-15 | 深圳供电局有限公司 | Current transformer polarity identification method and system |
| CN112083372B (en) * | 2020-08-21 | 2023-12-15 | 深圳供电局有限公司 | Polarity identification method and system for current transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111130 Termination date: 20180429 |
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| CF01 | Termination of patent right due to non-payment of annual fee |