CN108919171A - Ammeter internal fault tester - Google Patents
Ammeter internal fault tester Download PDFInfo
- Publication number
- CN108919171A CN108919171A CN201810716482.9A CN201810716482A CN108919171A CN 108919171 A CN108919171 A CN 108919171A CN 201810716482 A CN201810716482 A CN 201810716482A CN 108919171 A CN108919171 A CN 108919171A
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- tester
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- ammeter
- connect
- metering units
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- 238000012360 testing method Methods 0.000 claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims abstract description 6
- 238000012795 verification Methods 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 description 6
- 238000004088 simulation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Alarm Systems (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
The invention belongs to Domestic electric meter detection devices, and in particular to a kind of ammeter internal fault tester；Power transmission line includes firewire and zero curve, and being tested ammeter includes the first ammeter terminals, the second ammeter terminals, third ammeter terminals, the 4th ammeter terminals, tested table firewire metering units and tested table zero curve metering units；Customer charge normal switch includes the first load normal switch and the second load normal switch, customer charge test switch includes the first Road test switch and the second Road test switch, and tester includes the first tester terminals, the second tester terminals, third tester terminals, the 4th tester terminals, the 5th tester terminals, the first tester electric current metering units, the second tester electric current metering units, current feedback circuit, the first relay and the second relay；Structure is simple, and error is small, easy to detect, high-efficient.
Description
Technical field：
The invention belongs to Domestic electric meter detection devices, and in particular to a kind of ammeter internal fault tester.
Background technique：
With socio-economic development, stealing problem is more and more prominent, and reversal connection, forges lead sealing, uses the device of falling table, electricity at bridging
It can be shorted in table, be shorted in firewire concatenation, pvc pipe etc., stealing technology is increasingly intelligent, and electricity stealing is more hidden, allows power supply
Company's heavy losses on electricity.
Ammeter internal fault tester has the function such as the output of simulation power load, verification comparing, verification data record
Energy.Ammeter internal fault tester simulates single-phase electric energy meter correction platform, and measuring accuracy is 0.5S grades, by tested ammeter and verification
The current channel of instrument is together in series, using the basic principle that series circuit current is constant, in current channel metering analog load or
It is customer charge, by reading on-site calibrator and the respective electrical energy measurement parameter of tested electric energy meter, and is compared, is missed
Difference, thus judge tested electric energy meter whether accurate measurement.
Summary of the invention：
According to disadvantage described above, a kind of ammeter internal fault tester has been invented in present invention offer, and structure is simple, if
The standby component size that constitutes is small, easy to carry, is easily accessed.
Ammeter internal fault tester includes power transmission line, tested ammeter, customer charge, customer charge normal switch, user
Road test switch, tester power supply and tester, the power transmission line include firewire and zero curve, the tested ammeter
Including the first ammeter terminals, the second ammeter terminals, third ammeter terminals, the 4th ammeter terminals, tested table firewire meter
Measure unit and tested table zero curve metering units；Customer charge normal switch includes that the first load normal switch and the second load are normal
Switch, the customer charge test switch includes the first Road test switch and the second Road test switch, the verification
Instrument includes the first tester terminals, the second tester terminals, third tester terminals, the 4th tester terminals, the
Five tester terminals, the 6th tester terminals, the first tester electric current metering units, the metering of the second tester electric current are single
Member, current feedback circuit, the first relay and the second relay；One end of the firewire and one end of the first ammeter terminals connect
Connect at the same connect respectively with one end of the first relay and one end of the second relay connection, the first ammeter terminals
The other end is connect with one end of tested table firewire metering units, is tested the other end and the second ammeter wiring of table firewire metering units
The one end at end connects, and the terminals of the second current terminal are connect with one end of the first load normal switch to be verified with second simultaneously
One end of instrument terminals connects, the other end of the first load normal switch connect with one end that the first Road test switchs simultaneously with
One end of customer charge connects, the other end of customer charge connect with one end of the second load normal switch simultaneously with the second load
Test switch connection, the other end of the first Road test switch are connect with one end of the 5th tester terminals, the second load measuring
The other end that runin is closed is connect with one end of the 6th tester terminals, the other end and the 4th ammeter of the second load normal switch
One end of terminals connects, while the other end of the 4th ammeter terminals is connect with one end of tested table zero curve metering units and
One end of 4th tester terminals connects, wherein the other end of the 4th tester terminals and the metering of the second tester electric current are single
One end connection of member, the other end of the second tester electric current metering units are connect with the other end of the 6th tester terminals, quilt
The other end for surveying table zero curve metering units is connect with one end of third ammeter terminals, the other end and zero of third ammeter terminals
Line connects while connecting with third tester terminals；Its of the other end of first relay and current feedback circuit one end
In the connection of terminals, the other end of the second relay connect with another terminals therein of current feedback circuit one end,
One of terminals of the other end of current feedback circuit are connect simultaneously with one end of the first tester electric current metering units
The other end of five tester terminals connects, wherein the other end of the first tester electric current metering units and the second tester wiring
The other end at end connects, another terminals therein of the other end of current feedback circuit and one end of tester power supply connect
It connects while being connect with the other end of third tester terminals, wherein the other end of tester power supply and the second relay
Other end connection.
Preferably, ammeter internal fault tester is single-phase load verification.
Preferably, it is tested between ammeter and tester and uses concatenated connection type.
Preferably, ammeter internal fault tester has RS485 communication function.
The current channel of tested ammeter and tester is together in series, utilizes series circuit current by the configuration of the present invention is simple
Constant basic principle, in current channel metering analog load or customer charge, by reading on-site calibrator and tested electricity
Can the respective electrical energy measurement parameter of table, and be compared, obtain error amount, thus judge tested electric energy meter whether accurate measurement,
Error is small, easy to detect, high-efficient.
Detailed description of the invention：
Fig. 1 is ammeter internal fault tester circuit diagram.
In figure, firewire 1, zero curve 2, the first ammeter terminals 3, the second ammeter terminals 4, third ammeter terminals the 5, the 4th
Ammeter terminals 6 are tested table firewire metering units 7, are negative by side table zero curve metering units 8, the first load normal switch 9, second
Lotus normal switch 10, customer charge 11, the first Road test switch 12, the second Road test switch 13, the first tester wiring
Hold the 14, second tester terminals 15, third tester terminals 16, the 4th tester terminals 17, the 5th tester wiring
Hold the 18, the 6th tester terminals 19, the first tester electric current metering units 20, the second tester electric current metering units 21, the
One relay 22, the second relay 23, current feedback circuit 24, tester power supply 25, tested ammeter 26, tester 27.
Specific embodiment：
As shown in Figure 1, ammeter internal fault tester is single-phase load verification, ammeter internal fault tester has
RS485 communication function.Ammeter internal fault tester includes that power transmission line, tested ammeter 26, customer charge 11, customer charge are normal
Switch, customer charge test switch, tester power supply 25 and tester 27, the power transmission line include firewire 1 and zero curve
2, the tested ammeter includes the first ammeter terminals 3, the second ammeter terminals 4, third ammeter terminals 5, the 4th ammeter
Terminals 6, tested table firewire metering units 7 and tested table zero curve metering units 8；Customer charge normal switch includes the first load
Normal switch 9 and the second load normal switch 10, the customer charge test switch includes 12 He of the first Road test switch
Second Road test switch 13, the tester include the first tester terminals 14, the second tester terminals 15, third
Tester terminals 16, the 4th tester terminals 17, the 5th tester terminals 18, the first tester electric current metering units
20, the second tester electric current metering units 21, current feedback circuit 24, the first relay 22 and the second relay 23, wherein being tested
Concatenated connection type is used between ammeter 26 and tester 27.
One end of firewire 1 is connect with one end of the first ammeter terminals 3 to be connected with one end of the first relay 22 respectively simultaneously
It connects and is connected with one end of the second relay 23, the other end of the first ammeter terminals 3 and tested table firewire metering units 7
One end connection, the other end of tested table firewire metering units 7 connect with one end of the second ammeter terminals 4, and the second electric current connects
The terminals of line end 4 connect with one end of the first load normal switch 9 and connect simultaneously with one end of the second tester terminals 15,
The other end of first load normal switch 9 connect one end with customer charge 11 simultaneously with one end of the first Road test switch 12
Connection, the other end of customer charge 11 connect with one end of the second load normal switch 10 simultaneously with the second Road test switch 13
Connection, the other end of the first Road test switch 13 are connect with one end of the 5th tester terminals 18, the second load measuring runin
The other end of pass 18 is connect with one end of the 6th tester terminals 19, the other end of the second load normal switch 10 and the 4th electricity
One end of table terminals 6 connects, and the other end of the 4th ammeter terminals 6 is connect with one end of tested table zero curve metering units 8
It is connect simultaneously with one end of the 4th tester terminals 17, wherein the other end and the second tester of the 4th tester terminals 17
One end of electric current metering units 21 connects, the other end and the 6th tester terminals 26 of the second tester electric current metering units 21
Other end connection, the other end of tested table zero curve metering units 8 connect with one end of third ammeter terminals 5, third ammeter
The other end of terminals 5 connects with zero curve 2 to be connect with third tester terminals 16 simultaneously.
The other end of first relay 22 is connect with one of terminals of 24 one end of current feedback circuit, the second relay
23 other end is connect with another terminals therein of 24 one end of current feedback circuit, the other end of current feedback circuit 24 its
In a terminals connect with one end of the first tester electric current metering units 20 it is another with the 5th tester terminals 18 simultaneously
One end connection, wherein the other end of the other end of the first tester electric current metering units 20 and the second tester terminals 15 connects
Connect, another terminals therein of the other end of current feedback circuit 24 connect with one end of tester power supply 25 simultaneously with
The other ends of third tester terminals 16 connects, and wherein the other end of tester power supply 25 and the second relay 23 is another
One end connection.
Working principle：Ammeter internal fault tester is using simulation Road test mode and two kinds of customer charge test mode
Analogy method.
When using Road test mode, the first load normal switch 9, the second load normal switch 10, the first load measuring
Runin close 12 and second Road test switch 13 it is all off, will not introduce in this way customer charge cause to test it is wrong.Tested electricity
The first ammeter terminals 3, the second ammeter terminals 4, third ammeter terminals 5 and the first check meter of tester 27 of table 26 connect
Line end 14, the second tester terminals 15, third tester terminals 16, which correspond, to be connected, and introduces external 220V power supply, school
It tests after instrument 27 works normally, sends the instruction of starting simulation load check, then system first puts into the first relay 22, then puts into the
Two relays 23, at this time current feedback circuit 24 i.e. generate a simulation load current, simulate load current the first relay 22,
Current feedback circuit 24, the first tester terminals 14 are formed into a loop between tested table firewire metering units 7, and table tested in this way is fiery
Line metering units 7 can carry out analog measurement, and the first tester terminals 14 of tester 27 can also carry out analog measurement.Tester
27 can be obtained firewire continuous data, and carry out error comparison.
When using customer charge test mode, the first relay 22 and the second relay 23 cannot be put into, otherwise user
To there is no circuit at load, and cause to test wrong.First load normal switch 9 and the second load normal switch 10 can not close
On, otherwise customer charge 11 is short-circuited, can not proper testing.The first ammeter terminals 3, the second ammeter of tested ammeter 26
The first tester terminals 14, second verification of line end 4, third ammeter terminals 5, the 4th ammeter terminals 6 and tester 27
Instrument terminals 15, third tester terminals 16, the 4th tester terminals 17, which correspond, to be connected, and introduces external 220V electricity
Source after tester 27 works normally, sends the instruction of starting customer charge verification, closes the first Road test of customer charge 11
Switch 12 and the second Road test switch 13, then firewire electric current is measured in tested table firewire metering units 7, the first tester electric current
Unit 20, the second tester electric current metering units 21, is formed into a loop between tested table zero curve metering units 8 customer charge 11, this
When 2 electric current of zero curve is practical is also equal to 1 electric current of firewire, table firewire metering units 7 tested in this way, tested table zero curve metering units 8 are all
The metering of customer charge 11 can be carried out, the first tester electric current metering units 20 of tester 27, the metering of the second tester electric current are single
Member 21 can also carry out the metering of customer charge 11.Tester 27 can simultaneously obtain the continuous data of firewire 1 and zero curve 2, and be missed
Difference compares.
Claims (4)
1. ammeter internal fault tester, it is characterised in that：The ammeter internal fault tester includes power transmission line, tested electricity
Table, customer charge, customer charge normal switch, customer charge test switch, tester power supply and tester, described is defeated
Electric wire includes firewire and zero curve, and the tested ammeter includes the first ammeter terminals, the second ammeter terminals, third ammeter
Line end, the 4th ammeter terminals, tested table firewire metering units and tested table zero curve metering units；Customer charge normal switch packet
The first load normal switch and the second load normal switch are included, the customer charge test switch includes the first load measuring runin
It closes and the second Road test switch, the tester includes the first tester terminals, the second tester terminals, third school
Test instrument terminals, the 4th tester terminals, the 5th tester terminals, the 6th tester terminals, the first tester electric current
Metering units, the second tester electric current metering units, current feedback circuit, the first relay and the second relay；The firewire
One end connect and simultaneously connect respectively with one end of the first relay and the second relay with one end of the first ammeter terminals
One end connection, the other end of the first ammeter terminals are connect with one end of tested table firewire metering units, are tested table fire
The other end of line metering units is connect with one end of the second ammeter terminals, the terminals of the second current terminal and the first load
Normal switch one end connection simultaneously connect with one end of the second tester terminals, the other end of the first load normal switch and
One end connection of first Road test switch is connect with one end of customer charge simultaneously, the other end of customer charge and the second load
One end connection of normal switch is switched with the second Road test simultaneously to be connected, the other end of the first Road test switch and the 5th school
One end connection of instrument terminals is tested, the other end of the second Road test switch is connect with one end of the 6th tester terminals, the
The other end of two load normal switch is connect with one end of the 4th ammeter terminals, the other end of the 4th ammeter terminals and tested
It is connect while one end connection of table zero curve metering units with one end of the 4th tester terminals, wherein the 4th tester wiring
The other end at end is connect with one end of the second tester electric current metering units, the other end of the second tester electric current metering units with
The other end of 6th tester terminals connects, and is tested the other end of table zero curve metering units and one end of third ammeter terminals
Connection, the other end of third ammeter terminals connects with zero curve to be connect with third tester terminals simultaneously；Described first after
The other end of electric appliance is connect with one of terminals of current feedback circuit one end, and the other end and electric current of the second relay occur
Another terminals therein of device one end connect, the one of terminals and the first tester of the other end of current feedback circuit
One end connection of electric current metering units is connect with the other end of the 5th tester terminals simultaneously, wherein the first tester galvanometer
Amount unit the other end connect with the other end of the second tester terminals, the other end of current feedback circuit it is therein another
Terminals are connect with one end of tester power supply to be connect with the other end of third tester terminals simultaneously, wherein tester
The other end of power supply is connect with the other end of the second relay.
2. ammeter internal fault tester according to claim 1, it is characterised in that：The ammeter internal fault verification
Instrument is single-phase load verification.
3. ammeter internal fault tester according to claim 1, it is characterised in that：The tested ammeter and tester
Between use concatenated connection type.
4. ammeter internal fault tester according to claim 2, it is characterised in that：The ammeter internal fault verification
Instrument has RS485 communication function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810716482.9A CN108919171B (en) | 2018-06-29 | 2018-06-29 | Ammeter internal fault check meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810716482.9A CN108919171B (en) | 2018-06-29 | 2018-06-29 | Ammeter internal fault check meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108919171A true CN108919171A (en) | 2018-11-30 |
| CN108919171B CN108919171B (en) | 2023-12-26 |
Family
ID=64424171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810716482.9A Active CN108919171B (en) | 2018-06-29 | 2018-06-29 | Ammeter internal fault check meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108919171B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110187267A (en) * | 2019-06-06 | 2019-08-30 | 杭州海兴电力科技股份有限公司 | Single-phase three-wire intelligent electric meter relay status detection circuit and method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19826673A1 (en) * | 1998-06-16 | 1999-12-30 | Enermet Gmbh | Electricity meter tester |
| CN201226024Y (en) * | 2008-09-22 | 2009-04-22 | 黑龙江省电力科学研究院 | Test device for simulating on-site electric energy metering |
| CN201673250U (en) * | 2010-04-30 | 2010-12-15 | 华立仪表集团股份有限公司 | Electricity energy meter accuracy tester under condition of pulse train interference |
| CN204142951U (en) * | 2014-10-17 | 2015-02-04 | 国家电网公司 | A kind of electric energy meter error calibration equipment |
| US20160187449A1 (en) * | 2014-12-30 | 2016-06-30 | Energybox Ltd. | Energy Metering System and Method for its Calibration |
| CN106443567A (en) * | 2016-12-02 | 2017-02-22 | 国网安徽省电力公司电力科学研究院 | Real-load test system for electric energy meters |
| CN208537707U (en) * | 2018-06-29 | 2019-02-22 | 国网宁夏电力有限公司固原供电公司 | Ammeter internal fault tester |
-
2018
- 2018-06-29 CN CN201810716482.9A patent/CN108919171B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19826673A1 (en) * | 1998-06-16 | 1999-12-30 | Enermet Gmbh | Electricity meter tester |
| CN201226024Y (en) * | 2008-09-22 | 2009-04-22 | 黑龙江省电力科学研究院 | Test device for simulating on-site electric energy metering |
| CN201673250U (en) * | 2010-04-30 | 2010-12-15 | 华立仪表集团股份有限公司 | Electricity energy meter accuracy tester under condition of pulse train interference |
| CN204142951U (en) * | 2014-10-17 | 2015-02-04 | 国家电网公司 | A kind of electric energy meter error calibration equipment |
| US20160187449A1 (en) * | 2014-12-30 | 2016-06-30 | Energybox Ltd. | Energy Metering System and Method for its Calibration |
| CN106443567A (en) * | 2016-12-02 | 2017-02-22 | 国网安徽省电力公司电力科学研究院 | Real-load test system for electric energy meters |
| CN208537707U (en) * | 2018-06-29 | 2019-02-22 | 国网宁夏电力有限公司固原供电公司 | Ammeter internal fault tester |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110187267A (en) * | 2019-06-06 | 2019-08-30 | 杭州海兴电力科技股份有限公司 | Single-phase three-wire intelligent electric meter relay status detection circuit and method |
| CN110187267B (en) * | 2019-06-06 | 2021-08-13 | 杭州海兴电力科技股份有限公司 | Single-phase three-wire intelligent ammeter relay state detection circuit and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108919171B (en) | 2023-12-26 |
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