CA2784338A1 - Wiring tester of multifunctional electric energy metering device - Google Patents
Wiring tester of multifunctional electric energy metering device Download PDFInfo
- Publication number
- CA2784338A1 CA2784338A1 CA2784338A CA2784338A CA2784338A1 CA 2784338 A1 CA2784338 A1 CA 2784338A1 CA 2784338 A CA2784338 A CA 2784338A CA 2784338 A CA2784338 A CA 2784338A CA 2784338 A1 CA2784338 A1 CA 2784338A1
- Authority
- CA
- Canada
- Prior art keywords
- electric energy
- test
- energy metering
- metering device
- sockets
- 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.)
- Abandoned
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/12—Circuits for multi-testers, i.e. multimeters, e.g. for measuring voltage, current, or impedance at will
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
A wiring tester of a multifunctional electric energy metering device includes a phase volt-ampere meter (1), wherein a direct current power supply (11) is provided in a meter case, a pair of test sockets (4, 5) and a pair of electrode sockets (6, 7) are provided on the meter case, one pole of the direct current power supply (11) is connected with one electrode socket (6), the other pole of the direct current power supply is connected with the other electrode socket (7) via a switch (10), the switch (10) is fixed on the meter case, the pair of test sockets (4, 5) are connected with two terminals of a transfer switch (1b) of the phase volt-ampere meter (1) respectively, and the wiring tester is also provided with test wires (2. 3, 8, 9) which match with each of the test sockets (4, 5) and the electrode sockets (6, 7). The wiring tester of a multifunctional electric energy metering device has the function of the phase volt-ampere meter. Moreover, when the wiring tester of a multifunctional electric energy metering device is needed to check and judge an electric energy metering loop, the test wires which match with each of the test sockets and the electrode sockets are connected with the corresponding sockets and then the phase volt-ampere meter can be used to check and judge the electric energy metering loop. The wiring tester according to present invention has a reasonable and reliable structure, can greatly simplify the process of the test and the wire connection/disconnection check of the electric energy metering device, and can check and judge accurately.
Description
WIRING TESTER OF MULTIFUNCTIONAL ELECTRIC ENERGY METERING
DEVICE
FIELD OF THE INVENTION
[0001] The present invention generally relates to the field of electrical test apparatus, and in particular to a wiring tester of a multifunctional electric energy metering device.
BACKGROUND OF THE INVENTION
DEVICE
FIELD OF THE INVENTION
[0001] The present invention generally relates to the field of electrical test apparatus, and in particular to a wiring tester of a multifunctional electric energy metering device.
BACKGROUND OF THE INVENTION
[0002] An electric energy metering device includes a power meter, a current transformer, a voltage transformer, a secondary wire, a connection terminal and the like.
In an electric energy metering device, if polarities of a current/voltage transformer are inaccurate, or if there is phenomenon, such as a fused primary fuse, a loose secondary connection wire or a wrong wiring in a voltage transformer, the correct function of the electric energy metering device will all be affected. For some users that consume very large amounts of electric energy, a mistake in one piece of wire may lead to a metering error of thousands of or even millions of Kilowatt-hours, resulting in dissensions for metering and causing economic loss to a power supply enterprise. In order to ensure that the electric energy metering device performs correct metering, it may be needed to test the polarities of the current transformer and the voltage transformer, to verify the conduction situation of the secondary wiring and the mark of the connection terminal, and to check the wiring connection of the electric energy meter. Presently, all those mentioned above are implemented by a traditional wire tracing method. However, the traditional wire tracing method needs a lot of equipment. Moreover, there is a small space in a metering cabinet or box with many intermediate conversions, which brings difficulty in the test and the wire connection/disconnect check for the electric energy metering device, leading to not only a waste of time but also low efficiency and difficulty in guaranteeing the accuracy. Furthermore the existing phase volt-ampere meter can not solve the above problems.
SUMMARY OF THE INVENTION
In an electric energy metering device, if polarities of a current/voltage transformer are inaccurate, or if there is phenomenon, such as a fused primary fuse, a loose secondary connection wire or a wrong wiring in a voltage transformer, the correct function of the electric energy metering device will all be affected. For some users that consume very large amounts of electric energy, a mistake in one piece of wire may lead to a metering error of thousands of or even millions of Kilowatt-hours, resulting in dissensions for metering and causing economic loss to a power supply enterprise. In order to ensure that the electric energy metering device performs correct metering, it may be needed to test the polarities of the current transformer and the voltage transformer, to verify the conduction situation of the secondary wiring and the mark of the connection terminal, and to check the wiring connection of the electric energy meter. Presently, all those mentioned above are implemented by a traditional wire tracing method. However, the traditional wire tracing method needs a lot of equipment. Moreover, there is a small space in a metering cabinet or box with many intermediate conversions, which brings difficulty in the test and the wire connection/disconnect check for the electric energy metering device, leading to not only a waste of time but also low efficiency and difficulty in guaranteeing the accuracy. Furthermore the existing phase volt-ampere meter can not solve the above problems.
SUMMARY OF THE INVENTION
[0003] The object of the present invention is to provide a wiring tester of a multifunctional electric energy metering device, which not only has the function of a phase volt-ampere meter but also can rapidly check and judge the wiring of a metering loop of an electric energy metering device.
[0004] In order to achieve the above object, the present invention provides the following solution: a wiring tester of a multifunctional electric energy metering device, including a phase volt-ampere meter, wherein a direct current power supply is provided in a meter case, a pair of test sockets and a pair of electrode sockets are provided on the meter case, one pole of the direct current power supply is connected with one electrode socket, the other pole of the direct current power supply is connected with the other electrode socket via a switch, the switch is fixed on the meter case, the pair of test sockets are connected with two terminals of a transfer switch of the phase volt-ampere meter respectively; the wiring tester is also provided with test wires which match with each of the test sockets and the electrode sockets.
[0005] As seen from the above solution, the wiring tester of a multifunctional electric energy metering device provided by the present invention has the function of the phase volt-ampere meter. Moreover, if the wiring tester of the multifunctional electric energy metering device is needed to check and judge a electric energy metering loop, the test wires which match with each of the test sockets and the electrode sockets are connected to corresponding sockets and then the phase volt-ampere meter can be used to check and judge the electric energy metering loop.
[0006] The wiring tester of the multifunctional electric energy metering device according to present invention has a reasonable and reliable structure, can greatly simplify the process of the test and wire connection/disconnection check for the electric energy metering device, and can check and judge accurately.
BRIEF DESCRIPTION OF THE DRAWINGS
BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Figure 1 is a structural schematic diagram according to the first embodiment of the present invention;
[0008] Figure 2 is a view taken along A in Figure 1;
[0009] Figure 3 is a circuit diagram in which the electrode sockets connect with the direct current power supply in Figure 2;
[0010] Figure 4 is a schematic diagram in which the test sockets connect with the transfer switch of the phase volt-ampere meter in Figure 1; and [0011] Figure 5 is a schematic view according to the second embodiment of the present invention.
DETAILED DESCRIPTION OF THE INVENTION
DETAILED DESCRIPTION OF THE INVENTION
[0012] The present invention will be further illustrated in conjunction with the embodiments and the accompany drawings as follows.
[0013] Reference is made to Figure 1, Figure 2, Figure 3 and Figure 4.
[0014] A wiring tester of a multifunctional electric energy metering device provided by the present invention includes a phase volt-ampere meter 1 which is the same as the existing product; a direct current power supply 11 provided in a meter case; a pair of test sockets, i.e., a test socket 4 and a test socket 5, provided on the meter case; a pair of electrode sockets, i.e., an electrode socket 6 and an electrode socket 7, also provided on the meter case, in which the negative pole of the direct current power supply 11 is connected with the electrode socket 7, and the positive pole of the direct current power supply 11 is connected with the other electrode socket 6 via a switch 10; the switch 10 fixed on the meter case. The test sockets 4 and 5 are connected with two terminals of a transfer switch lb of the phase volt-ampere meter respectively, in which one test socket 4 is connected with the positive pole terminal of the transfer switch lb and another test socket 5 is connected with the negative pole terminal of the transfer switch lb.
Furthermore, the wiring tester is also provided with a test wire 2, a test wire 3, a test wire 4 and a test wire 5 which match with each of the test sockets and the electrode sockets respectively. The switch 10 is a normally-open tact switch. The direct current power supply 11 is a storage battery having a voltage of 9 volts.
Furthermore, the wiring tester is also provided with a test wire 2, a test wire 3, a test wire 4 and a test wire 5 which match with each of the test sockets and the electrode sockets respectively. The switch 10 is a normally-open tact switch. The direct current power supply 11 is a storage battery having a voltage of 9 volts.
[0015] Reference is made to Figure 1.
[0016] The present application example is to test a current loop of a three-phase four-line low-voltage electric energy metering device. Specifically, the test method is as follows.
[0017] When a Group A element is tested, the transfer switch lb is turned to the 0.05mA model. One terminal of the test wire 8 is inserted into the electrode socket 6 which is connected with the positive pole of the direct current power supply;
and the other terminal thereof is connected to a primary power supply side of an A-phase current transformer. One terminal of another test wire 9 is inserted into the electrode socket 7 which is connected with the negative pole of the direct current power supply;
and the other terminal thereof is connected to a primary load side of the A-phase current transformer. One terminal of the test wire 3 is inserted into the test socket 4 which is connected with the positive pole terminal of the transfer switch 1b; and the other terminal thereof is connected with a terminal knob of an A-phase current inlet wire of a junction box of the metering device. One terminal of another test wire 2 is inserted into the test socket 5 which is connected with the negative pole terminal of the transfer switch 1 b; and the other terminal thereof is connected with an A-phase current outlet wire of a junction box of the metering device, in which the A-phase current outlet wire is disconnected with the terminal knob. Upon the switch 10 being pushed down, a detected signal passes through the transfer switch, the measurement circuit and the transformer of the phase volt-ampere meter via the test wires 2 and 3, and then the detected signal is input into a liquid crystal screen 1 a of the phase volt-ampere meter. The liquid crystal screen 1 a is observed. If the direction of the detected transient induced current which is displayed on the liquid crystal screen is the same as the correct direction of detected current in the A-phase current transformer, the wiring of the A-phase current loop is correct; otherwise, the wiring of the A-phase current loop is wrong. The test methods for a Group B element and a Group C element are similar to that for the Group A element.
and the other terminal thereof is connected to a primary power supply side of an A-phase current transformer. One terminal of another test wire 9 is inserted into the electrode socket 7 which is connected with the negative pole of the direct current power supply;
and the other terminal thereof is connected to a primary load side of the A-phase current transformer. One terminal of the test wire 3 is inserted into the test socket 4 which is connected with the positive pole terminal of the transfer switch 1b; and the other terminal thereof is connected with a terminal knob of an A-phase current inlet wire of a junction box of the metering device. One terminal of another test wire 2 is inserted into the test socket 5 which is connected with the negative pole terminal of the transfer switch 1 b; and the other terminal thereof is connected with an A-phase current outlet wire of a junction box of the metering device, in which the A-phase current outlet wire is disconnected with the terminal knob. Upon the switch 10 being pushed down, a detected signal passes through the transfer switch, the measurement circuit and the transformer of the phase volt-ampere meter via the test wires 2 and 3, and then the detected signal is input into a liquid crystal screen 1 a of the phase volt-ampere meter. The liquid crystal screen 1 a is observed. If the direction of the detected transient induced current which is displayed on the liquid crystal screen is the same as the correct direction of detected current in the A-phase current transformer, the wiring of the A-phase current loop is correct; otherwise, the wiring of the A-phase current loop is wrong. The test methods for a Group B element and a Group C element are similar to that for the Group A element.
[0018] Reference is made to Figure 5.
[0019] The present application example is to test a voltage loop of a three-phase four-line low-voltage electric energy metering device. Specifically, the test method is as follows.
[0020] When a Group A element is tested, the transfer switch lb is turned to the direct current l OV model. One terminal of the test wire 8 is inserted into the electrode socket 6 which is connected with the positive pole of the direct current power supply;
and the other terminal thereof is connected to the primary power supply side of the A-phase current transformer. One terminal of another test wire 9 is inserted into the electrode socket 7 which is connected with the negative pole of the direct current power supply;
and the other terminal thereof is connected to the N line of the power supply. One terminal of the test wire 3 is inserted into the test socket 4 which is connected with the positive pole terminal of the transfer switch lb; and the other terminal thereof is connected with a terminal knob of an A-phase voltage of the junction box for the metering device. One terminal of another test wire 2 is inserted into the test socket 5 which is connected with the negative pole terminal of the transfer switch lb; and the other terminal thereof is connected with N-phase terminal knob of the junction box of the metering device. The switch is pushed down and the liquid crystal screen la is observed. When the liquid crystal screen la indicates a voltage of approximately 9V, the voltage loop of the Group A
element of the electric energy metering device is wired correctly. The test methods for a Group B element and a Group C element are similar to that for the Group A
element.
and the other terminal thereof is connected to the primary power supply side of the A-phase current transformer. One terminal of another test wire 9 is inserted into the electrode socket 7 which is connected with the negative pole of the direct current power supply;
and the other terminal thereof is connected to the N line of the power supply. One terminal of the test wire 3 is inserted into the test socket 4 which is connected with the positive pole terminal of the transfer switch lb; and the other terminal thereof is connected with a terminal knob of an A-phase voltage of the junction box for the metering device. One terminal of another test wire 2 is inserted into the test socket 5 which is connected with the negative pole terminal of the transfer switch lb; and the other terminal thereof is connected with N-phase terminal knob of the junction box of the metering device. The switch is pushed down and the liquid crystal screen la is observed. When the liquid crystal screen la indicates a voltage of approximately 9V, the voltage loop of the Group A
element of the electric energy metering device is wired correctly. The test methods for a Group B element and a Group C element are similar to that for the Group A
element.
[0021] Furthermore, the wiring tester of the multifunctional electric energy metering device provided by the present invention may further perform the following tests of an electric energy metering device: tests of the current and voltage loop of a three-phase three-line high-voltage electric energy metering device, and tests of polarities of a current transformer and a voltage transformer. The principles of those tests are similar to those of the above tests of the current and voltage loop of a three-phase four-line low-voltage electric energy metering device.
Claims (3)
1. A wiring tester of a multifunctional electric energy metering device, comprising a phase volt-ampere meter, wherein a direct current power supply is provided in a meter case, a pair of test sockets and a pair of electrode sockets are provided on the meter case, one pole of the direct current power supply is connected with one electrode socket, the other pole of the direct current power supply is connected with the other electrode socket via a switch, the switch is fixed on the meter case, the pair of test sockets are connected with two terminals of a transfer switch of the phase volt-ampere meter respectively, and the wiring tester is provided with test wires which match with each of the test sockets and the electrode sockets.
2. The wiring tester of a multifunctional electric energy metering device according to claim 1, wherein the switch is a normally-open tact switch.
3. The wiring tester for a multifunctional electric energy metering device according to claim 1, wherein the direct current power supply is a storage battery having a voltage of 9 volts.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200213993U CN201955421U (en) | 2011-01-20 | 2011-01-20 | Wiring detector for multifunctional electric energy metering device |
| CN201120021399.3 | 2011-01-20 | ||
| PCT/CN2011/083167 WO2012097648A1 (en) | 2011-01-20 | 2011-11-29 | Multifunctional wiring detector for electric energy metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2784338A1 true CA2784338A1 (en) | 2012-07-20 |
Family
ID=44499529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2784338A Abandoned CA2784338A1 (en) | 2011-01-20 | 2011-11-29 | Wiring tester of multifunctional electric energy metering device |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN201955421U (en) |
| CA (1) | CA2784338A1 (en) |
| WO (1) | WO2012097648A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333399A (en) * | 2017-01-20 | 2018-07-27 | 上海逸合电子科技有限公司 | A kind of multifunctional intellectual ammeter junction module |
| CN110726859A (en) * | 2019-10-31 | 2020-01-24 | 国网山东省电力公司济宁供电公司 | Switching device for continuously metering during live replacement of electric energy meter and electric energy meter replacement method |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201955421U (en) * | 2011-01-20 | 2011-08-31 | 安徽省电力公司蚌埠供电公司 | Wiring detector for multifunctional electric energy metering device |
| CN102353928B (en) * | 2011-09-30 | 2014-07-16 | 广东电网公司电力科学研究院 | Traceability system and method of direct current (DC) electric energy metering device with alternating current (AC) pulse |
| CN103454612B (en) * | 2013-09-03 | 2015-08-26 | 青岛元启工业智能技术有限公司 | A kind of ammeter electrifying test device |
| CN105717402B (en) * | 2014-12-03 | 2018-10-09 | 国网辽宁省电力有限公司营口供电公司 | Zero firewire reversal connection automatic identification circuit of electric energy meter and recognition methods |
| CN104977497B (en) * | 2015-06-16 | 2018-12-21 | 陈劲游 | Volt-ampere phase meter for checking wiring in case of power failure or electrification |
| CN105807129B (en) * | 2016-03-02 | 2018-11-02 | 中国人民解放军91663部队 | Power meter with metering interface and its method |
| CN107102289B (en) * | 2017-06-19 | 2019-10-22 | 云南电网有限责任公司曲靖供电局 | A kind of measurement loop wiring error judgment method and device |
| CN109738680B (en) * | 2019-03-01 | 2024-04-05 | 潍坊五洲浩特电气有限公司 | Three-phase electric energy meter measuring box and test system |
| CN112505593A (en) * | 2020-10-13 | 2021-03-16 | 国网浙江省电力有限公司绍兴供电公司 | Measuring loop polarity check instrument |
| CN113466513A (en) * | 2021-05-31 | 2021-10-01 | 国网浙江海盐县供电有限公司 | Wiring-free assembled electric energy meter wiring box |
Family Cites Families (8)
| 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 |
| US5297106A (en) * | 1991-10-01 | 1994-03-22 | Rockwell International Corporation | Method and apparatus for controlling integration time on multiplexing staring arrays |
| JP3003932B1 (en) * | 1998-11-26 | 2000-01-31 | 東北電力株式会社 | Connection determination device for watt hour meter |
| JP2000258484A (en) * | 1999-03-10 | 2000-09-22 | Hioki Ee Corp | Connection state detector in power meter |
| CN2483731Y (en) * | 2000-09-07 | 2002-03-27 | 陕西泾阳长城电器仪表有限责任公司 | Portable digital double phase clamping volt-amperameter |
| JP5238419B2 (en) * | 2008-09-09 | 2013-07-17 | 日置電機株式会社 | Wiring state detection method for power meter |
| CN201387442Y (en) * | 2008-12-09 | 2010-01-20 | 武汉市华天电力自动化有限责任公司 | Digital double-clamp phase volometer |
| CN201955421U (en) * | 2011-01-20 | 2011-08-31 | 安徽省电力公司蚌埠供电公司 | Wiring detector for multifunctional electric energy metering device |
-
2011
- 2011-01-20 CN CN2011200213993U patent/CN201955421U/en not_active Expired - Lifetime
- 2011-11-29 WO PCT/CN2011/083167 patent/WO2012097648A1/en active Application Filing
- 2011-11-29 CA CA2784338A patent/CA2784338A1/en not_active Abandoned
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333399A (en) * | 2017-01-20 | 2018-07-27 | 上海逸合电子科技有限公司 | A kind of multifunctional intellectual ammeter junction module |
| CN110726859A (en) * | 2019-10-31 | 2020-01-24 | 国网山东省电力公司济宁供电公司 | Switching device for continuously metering during live replacement of electric energy meter and electric energy meter replacement method |
| CN110726859B (en) * | 2019-10-31 | 2022-01-21 | 国网山东省电力公司济宁供电公司 | Switching device for continuously metering during live replacement of electric energy meter and electric energy meter replacement method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN201955421U (en) | 2011-08-31 |
| WO2012097648A1 (en) | 2012-07-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |
Effective date: 20171129 |