CN107976648A - A kind of Electric control measuring instrument automatic connection test method - Google Patents
A kind of Electric control measuring instrument automatic connection test method Download PDFInfo
- Publication number
- CN107976648A CN107976648A CN201710956174.9A CN201710956174A CN107976648A CN 107976648 A CN107976648 A CN 107976648A CN 201710956174 A CN201710956174 A CN 201710956174A CN 107976648 A CN107976648 A CN 107976648A
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- China
- Prior art keywords
- wiring
- measuring instrument
- test method
- voltage
- electric control
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
-
- 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
- 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
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
- G01R31/67—Testing the correctness of wire connections in electric apparatus or circuits
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The present invention relates to technology of instrument and meter field, more particularly to a kind of Electric control measuring instrument automatic connection test method, the wiring check of wiring check, current loop including voltage circuit, the Correctness checking for checking connection box of electric energy meter, the limit detection method complete detection wiring result of the present invention, exclude a variety of Wrong wiring ways, comprehensive diagnostic wiring result.
Description
Technical field
The present invention relates to technology of instrument and meter field, and in particular to a kind of Electric control measuring instrument automatic connection test side
Method.
Background technology
Single-phase electric energy meter only has one group of electromagnetic component in electric energy metering device, and wiring is relatively simple, when there is wiring error
Easily find.Three-phase and four-line electric energy meter can be regarded as to be made of three single-phase electric energy meters.Wiring can be checked using split-phase method
Correctness.Through current transformer (TA), voltage transformer (TV) access three-phase three-wire electric energy meter mis-wired species and
Probability is more, wiring error occurs, is often not easy to judge, and since the electricity that such meter is measured is big, it is influenced with after
Fruit is also serious.
In order to ensure the accurate of electrical energy metering, the electric energy meter in electric energy metering device must accomplish that wiring is correct.Electric energy
The error very little of table in itself, the error for measuring electric energy generally only have a few percent, if but connection box of electric energy meter mistake, measure electric energy
Error can reach percent hundreds of, and great economic loss is brought to user and power supply enterprise.So scene must be taken seriously
Run the wiring issue of electric energy meter, it is ensured that electric energy meter measures the size of electric flux under correct wiring state.
The content of the invention
It is an object of the invention to provide a kind of Electric control measuring instrument automatic connection test method, it is divided into：Voltage returns
The wiring check on road, the wiring check of current loop, the Correctness checking for checking connection box of electric energy meter, the wiring of the voltage circuit
Check to measure the line voltage of each secondary circuit, checking that earth point determines the phase sequence of separate measurement three-phase voltage.
Preferably, in the line voltage of each secondary circuit of the measurement when measuring Uab, Ubc, Uca, its value should be close to equal
And it is 110V.
Preferably, the inspection earth point determines that separate is to be grounded with a voltmeter one end, and the other end connects electricity successively
Can three voltage terminals of table.
Compared with prior art, the present invention has the advantages that：
A kind of Electric control measuring instrument automatic connection test method that the present invention uses, limit detection method of the invention
Complete detection wiring is as a result, exclude a variety of Wrong wiring ways, comprehensive diagnostic wiring result.
Brief description of the drawings
Fig. 1 is the flow diagram of acquisition module of the present invention.
Embodiment
The present invention is described further below in conjunction with attached drawing：
A kind of Electric control measuring instrument automatic connection test method, is divided into：Wiring check, the current loop of voltage circuit
Wiring check, check the Correctness checking of connection box of electric energy meter, the wiring check of the voltage circuit is measures each secondary circuit
Line voltage, check earth point determine it is separate, measurement three-phase voltage phase sequence.
In the line voltage of each secondary circuit of the measurement when measuring Uab, Ubc, Uca, its value should be close to equal and be
110V, as found, three groups of voltages are unequal in measurement process, and when numerical value difference is larger, illustrates that TV has first and second side broken string, melts
Silk blows or situations such as winding reversal connection,, can during as there is situations such as 0V, 50V to occur in line voltage for the TV using V/V wiring
When can be once or secondary break that to have one group of voltage be 170V, illustrate there is a TV winding polarity reversal connection, for Yyn wiring
TV, when having 58V to occur in the value for measuring line voltage, illustrates once broken string or a TV winding polarity reversal connection phenomenon, carries
When meter even load measures, no matter using the TV of which kind of martingale when there is secondary break, it is not electric between disconnected two-phase
Pressure value is always distributed for the other two groups of voltages of 100V by load impedance；
It is separate to check that earth point determines, is grounded with a voltmeter one end, the other end connects three voltage ends of electric energy meter successively
Button, it can be determined that the Grounding of TV, voltmeter refer both to 100V three times, illustrate that TV secondary side circuits are not grounded, do not constitute back
Road, is twice 100V, is once 0, and explanation is probably two single-phase transformers V-arrangement connections, it is also possible to three single-phase TV or one
Platform three-phase and five-pole TV connects for Y shape.Three of the above can conclude that B phases are grounded, and the phase for being 0 is B phases, can be determined according to phase sequence
Go out A phases and C phases, refer both to 100/V three times, it is Y shape connection and neutral ground to illustrate TV, and such case can't determine phase for the moment
Not；
The wiring check of current loop：A phases or C phase voltages are disconnected, whether observation electric energy meter rotates.It will be connect successively during inspection
The A phases or C phase voltages terminal for entering electric energy meter disconnect, and electric energy meter remains to rotate, disconnect A phases, and disk cannot rotate, and illustrate second yuan
The current loop of part (access power supply Ic phases, voltage Uab) may have phenomena such as short circuit or broken string, disconnect C phases, and disk cannot turn
Dynamic, phenomena such as short circuit or broken string may be had by illustrating the current loop of the first element (access electric current Ia phases, voltage Uab).Need special
It is noted that as power factor (PF) cos Φ=0.5, the power of the first element metering is 0.To such case, C can be disconnected
While phase voltage, C phase voltages are shifted on the terminal of A phase voltages, the power that the first element is measured at this time is：PA=
UcbIacos Φ (90 ° of+Φ), if Φ=60 °, electric energy meter should have obvious reversion, otherwise illustrate that A phase current loops may
There are short circuit or broken string phenomenon, measurement current loop, determine TA whether there is error-polarity connection, first yuan is measured respectively with standard amperemeters
The current value of part, the second element and common line, is respectively connected to A, C phase TA secondary sides the current terminal of electric energy meter, as three-phase is born
Balance is carried, then measured value is equal three times, and such as public line current is times of other phase currents, illustrates to have a TA error-polarity connection, sentences
The Correctness checking of disconnected current loop ground connection.With the conducting wire of a both ends Band clamp, one end ground connection, the other end successively with electric energy meter
Current terminal contact connection.When being connected with earth-free terminal, conducting wire is split with the electric current in current coil, and dial plate rotating speed becomes
Slowly；When being connected with ground connection terminal, table speed does not change, and may determine which terminal is grounded by this method, whether just ground connection
Really.
Using technological invention of the present invention, or those skilled in the art is under the inspiration that the technology of the present invention is invented, if
Similar technological invention is counted out, and reaches above-mentioned technique effect, is to fall into protection scope of the present invention.
Claims (3)
1. a kind of Electric control measuring instrument automatic connection test method, it is characterised in that be divided into：The wiring check of voltage circuit,
The wiring check of current loop, the Correctness checking for checking connection box of electric energy meter, the wiring check of the voltage circuit are each for measurement
The line voltage of secondary circuit, check that earth point determines the phase sequence of separate measurement three-phase voltage.
2. a kind of Electric control measuring instrument automatic connection test method according to claim 1, it is characterised in that described
Measure in the line voltage of each secondary circuit when measuring Uab, Ubc, Uca, its value should be close to equal and be 110V.
3. a kind of Electric control measuring instrument automatic connection test method according to claim 1, it is characterised in that described
Inspection earth point determine that separate is to be grounded with voltmeter one end, the other end connects three voltage terminals of electric energy meter successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710956174.9A CN107976648A (en) | 2017-10-15 | 2017-10-15 | A kind of Electric control measuring instrument automatic connection test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710956174.9A CN107976648A (en) | 2017-10-15 | 2017-10-15 | A kind of Electric control measuring instrument automatic connection test method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107976648A true CN107976648A (en) | 2018-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710956174.9A Pending CN107976648A (en) | 2017-10-15 | 2017-10-15 | A kind of Electric control measuring instrument automatic connection test method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109283423A (en) * | 2018-11-05 | 2019-01-29 | 国家电网有限公司 | Three-phase-three-wire energy measurement device TV single-phase polarity is reversely connected false wiring judgment method |
| CN109493673A (en) * | 2018-12-14 | 2019-03-19 | 国家电网有限公司 | Electric energy metering device wiring is just misidentifying training evaluation system |
| CN110632448A (en) * | 2019-09-16 | 2019-12-31 | 深圳供电局有限公司 | Wiring detection method for three-phase three-wire metering device with mutual inductor |
| CN111751633A (en) * | 2019-03-27 | 2020-10-09 | 华北电力大学扬中智能电气研究中心 | Power consumption behavior detection method and device, electronic equipment and storage medium |
| BE1027538B1 (en) * | 2019-09-02 | 2021-03-29 | Phoenix Contact Gmbh & Co | Procedure for verifying phase assignments |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2092107U (en) * | 1991-03-29 | 1992-01-01 | 陆惠德 | Detector for wrong wiring of watt-hour meter |
| JP2010038767A (en) * | 2008-08-06 | 2010-02-18 | Nippon Denki Keiki Kenteisho | Automatic wire connection device for electric instrument |
| CN102540131A (en) * | 2010-12-15 | 2012-07-04 | 河南省电力公司开封供电公司 | Instrument examination method based on electrical energy metering |
| CN103513220A (en) * | 2013-09-24 | 2014-01-15 | 国家电网公司 | Method for judging false wiring of three-phase three-wire electric energy meter |
| CN103645415A (en) * | 2013-12-11 | 2014-03-19 | 国家电网公司 | Practical method of inspecting electric energy metering device wiring in charged mode |
| CN105911420A (en) * | 2016-05-30 | 2016-08-31 | 厦门大学嘉庚学院 | Algorithm for automatically identifying 192 three-phase three-wire electric energy meter wiring modes |
-
2017
- 2017-10-15 CN CN201710956174.9A patent/CN107976648A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2092107U (en) * | 1991-03-29 | 1992-01-01 | 陆惠德 | Detector for wrong wiring of watt-hour meter |
| JP2010038767A (en) * | 2008-08-06 | 2010-02-18 | Nippon Denki Keiki Kenteisho | Automatic wire connection device for electric instrument |
| CN102540131A (en) * | 2010-12-15 | 2012-07-04 | 河南省电力公司开封供电公司 | Instrument examination method based on electrical energy metering |
| CN103513220A (en) * | 2013-09-24 | 2014-01-15 | 国家电网公司 | Method for judging false wiring of three-phase three-wire electric energy meter |
| CN103645415A (en) * | 2013-12-11 | 2014-03-19 | 国家电网公司 | Practical method of inspecting electric energy metering device wiring in charged mode |
| CN105911420A (en) * | 2016-05-30 | 2016-08-31 | 厦门大学嘉庚学院 | Algorithm for automatically identifying 192 three-phase three-wire electric energy meter wiring modes |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109283423A (en) * | 2018-11-05 | 2019-01-29 | 国家电网有限公司 | Three-phase-three-wire energy measurement device TV single-phase polarity is reversely connected false wiring judgment method |
| CN109493673A (en) * | 2018-12-14 | 2019-03-19 | 国家电网有限公司 | Electric energy metering device wiring is just misidentifying training evaluation system |
| CN111751633A (en) * | 2019-03-27 | 2020-10-09 | 华北电力大学扬中智能电气研究中心 | Power consumption behavior detection method and device, electronic equipment and storage medium |
| BE1027538B1 (en) * | 2019-09-02 | 2021-03-29 | Phoenix Contact Gmbh & Co | Procedure for verifying phase assignments |
| CN110632448A (en) * | 2019-09-16 | 2019-12-31 | 深圳供电局有限公司 | Wiring detection method for three-phase three-wire metering device with mutual inductor |
| CN110632448B (en) * | 2019-09-16 | 2022-07-15 | 深圳供电局有限公司 | Wiring detection method for three-phase three-wire metering device with mutual inductor |
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