CN202631726U - Tool for testing three-phase intelligent ammeter under alternating-current voltage and pulse voltage - Google Patents
Tool for testing three-phase intelligent ammeter under alternating-current voltage and pulse voltage Download PDFInfo
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- CN202631726U CN202631726U CN 201220233233 CN201220233233U CN202631726U CN 202631726 U CN202631726 U CN 202631726U CN 201220233233 CN201220233233 CN 201220233233 CN 201220233233 U CN201220233233 U CN 201220233233U CN 202631726 U CN202631726 U CN 202631726U
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Abstract
The utility model discloses a tool for testing a three-phase intelligent ammeter under alternating-current voltage and pulse voltage. Multiple positioning clamping plates are fixedly and uniformly distributed on a base; a station is arranged between two adjacent positioning clamping plates; a pressing plate is sleeved on a plurality of guide posts of the base and is provided with a pressing plate pressing mechanism; the lower part of the pressing plate is fixedly provided with a plurality of groups of probes; one group of probes corresponds to terminals of a tested ammeter; each group of probes consists of ten main probes and fifteen auxiliary probes; the ten main probes in each group of probes are respectively connected with high-end jacks on the base through wires and switches; the fifteen auxiliary probes in each group of probes are respectively connected with low-end jacks on the base through wires and switches; and the high-end jacks and the low-end jacks are respectively used for being connected with the output end and grounding end of a voltage-resistant tester. According to the tool, manual wiring during testing is avoided, multiple meters are simultaneously tested, and the tool has the characteristics of high testing working efficiency and high testing accuracy.
Description
Technical field
The utility model relates to electric energy meter proving installation, the particularly intelligent electric energy meter insulating property proving installation under alternating voltage and pulse voltage.
Background technology
GB/T 17215.211-2006 regulation exchanges electric measuring instrument and should carry out the insulating property testing experiment, comprises AC voltage withstand test and impulse test.During test, should carry out test and the test of all line-to-grounds between circuit and circuit respectively.The AC voltage withstand test requirement, the auxiliary line that all current circuits and voltage circuit and reference voltage surpass 40V should be linked as a bit, applies the 4Kv trial voltage between this point and the ground, applies the 2Kv WV between unconnected each circuit in the work.Impulse test is selected different tests voltage according to the intelligent electric energy meter specification.Test connection synoptic diagram such as Fig. 1, shown in Figure 2.
At present; Alternating voltage, pulse voltage test for intelligent electric energy meter are carried out with single ammeter mode usually; Single only making an experiment then needs the time of labor and manpower; Existence needs artificial wiring (for carrying out the insulating property test of different tests point), and it is loaded down with trivial details to work, the lower and poor stability problem of efficient.
The utility model content
When providing a kind of the test, the purpose of the utility model do not need artificial wiring, many three-phase intelligent electric energy meter alternating voltage pulses voltage tester frocks that table is tested simultaneously.
This novel purpose is achieved in that a kind of three-phase intelligent electric energy meter alternating voltage pulses voltage tester frock; The base upper surface upper edge long side direction of cuboid is uniformly distributed with through bolt and is fixed with a plurality of positioning splints; Be configured for putting a station of ammeter to be tested between adjacent two positioning splints; Be fixed with many guideposts on the base upper surface, pressing plate is enclosed within on the guidepost through the perforate on it versatilely; Also has the pressing plate press mechanism; The pressing plate bottom is fixed with many group probes, is made up of 10 primary probes and 15 assist probes corresponding to one group of probe of an ammeter to be tested; Every group of probe connects by following mode: when pressing plate is depressed; Contacted 10 primary probes of A phase current+end, A phase current-end, A phase voltage end, B phase current+end, B phase current-end, B phase voltage end, C phase current+end, C phase current-end, C phase voltage end and earth terminal with ammeter to be tested are connected to the high-end jack on the base through lead and switch respectively respectively; When pressing plate is depressed; With the tripping operation Chang Kaiduan of ammeter to be tested, the common port that trips, tripping operation normal-closed end, warning+end, warning-end, meritorious pulse+end, meritorious pulse-end, common, multi-functional+end, multi-functional-as to hold, RS485 communication interface 1+ end, RS485 communication interface 1-end, RS485 communication interface 2+ end, RS485 communication interface 2-end and contacted 15 assist probes of common are connected to the low side jack on the base through lead and switch respectively respectively; Low side jack on the base is used separately as earth terminal and the output terminal that is connected Hi-pot Tester with high-end jack.
Above-mentioned guidepost is four.
Above-mentioned positioning splint is four and constitutes two stations.
Above-mentioned probe adopts German INGUN probe.
Be fixed with riser on the above-mentioned base; Said pressing plate press mechanism is: 305H folder fast is installed on the riser, and vertical bar upper end is hinged on 305H and presss from both sides the bottom fast, and vertical bar lower end is through being bolted on the pressing plate.
Above-mentioned base is a black bakelite base.
Above-mentioned every group of probe stationary is on a needle plate, and needle plate is fixed on the pressing plate bottom.
The utility model has been designed and Implemented single-phase intelligent ammeter alternating voltage, pulse voltage test fixture respectively according to the characteristic of intelligent electric energy meter.When defective test specimen occurring, for ease of the test reproduction, single-phase intelligent ammeter test fixture has designed three epi-positions, can carry out three single-phase table dielectric tests simultaneously; The pressure-wire of the electric current line of connecting between the test specimen, parallel connection and the line of test specimen and test fixture all are encapsulated in base inside, have avoided loaded down with trivial details artificial wiring link.
The beneficial effect of the utility model is: utilize this novel intelligent electric energy meter dielectric test of carrying out; Can improve work efficiency, reduce manual errors wiring probability, improve safe operation; Strengthen the unitarity of product inspection method and judgment basis simultaneously, reduced the product quality discreteness.With the three-phase and four-line intelligent electric energy meter through mutual inductor is example, utilizes this novel insulating property testing experiment that carries out to make an experiment with the mode that adopts artificial wiring, and effect comparison is as shown in table 1.
The contrast of table 1 test effect:
| The test method effect comparison | Adopt this novel making an experiment | Adopt the artificial mode of connection to make an experiment |
| Test efficiency | Single only through mutual inductor three-phase and four-line intelligent electric energy meter, accomplish the test of impulse test and alternating voltage, about 6min consuming time | Single only through mutual inductor three-phase and four-line intelligent electric energy meter, accomplish the test of impulse test and alternating voltage, about 15min consuming time |
| Security | Security is higher | Security is low |
| Reliability | Reliability is high | Reliability is lower |
| Accuracy | Accuracy is high | Accuracy is lower |
Description of drawings
Fig. 1 is alternating voltage, impulse test wiring diagram (line-to-ground).
Fig. 2 is alternating voltage, impulse test wiring diagram (between the circuit).
Fig. 3 is the stereographic map of the utility model.
Fig. 4 is the vertical cross section figure along the vertical bar of Fig. 3.
Fig. 5 is the synoptic diagram of the terminal of three-phase electric energy meter when contacting with probe (among the figure in the frame of broken lines expression be positioned at the wiring of frock base).
Embodiment
Fig. 3, Fig. 4 illustrate this three-phase intelligent electric energy meter alternating voltage pulses voltage tester frock; The base 1 upper surface upper edge long side direction of cuboid is uniformly distributed with through bolt and is fixed with a plurality of positioning splints 2; Be configured for putting a station of ammeter 11 to be tested between adjacent two positioning splints; Be fixed with many guideposts 4 on base 1 upper surface, pressing plate 9 is enclosed within on the guidepost through the perforate on it versatilely; Also has the pressing plate press mechanism; Pressing plate 9 bottoms are fixed with many group probes 8, are made up of 10 primary probes and 15 assist probes corresponding to one group of probe of an ammeter to be tested; Every group of probe connects by following mode: when pressing plate is depressed; Respectively with contacted 10 primary probes of A phase current+end, A phase current-end, A phase voltage end, B phase current+end, B phase current-end, B phase voltage end, C phase current+end, C phase current-end, C phase voltage end and earth terminal of ammeter to be tested respectively through lead and the switch (switch of connecting on each lead; Be connected to the high-end jack on the base 1 down together); When pressing plate is depressed; With the tripping operation Chang Kaiduan of ammeter to be tested, the common port that trips, tripping operation normal-closed end, warning+end, warning-end, meritorious pulse+end, meritorious pulse-end, common, multi-functional+end, multi-functional-as to hold, RS485 communication interface 1+ end, RS485 communication interface 1-end, RS485 communication interface 2+ end, RS485 communication interface 2-end and contacted 15 assist probes of common are connected to the low side jack on the base 1 through lead and switch respectively respectively; Low side jack on the base is used separately as earth terminal and the output terminal that is connected Hi-pot Tester with high-end jack.Every group of probe stationary is on a needle plate 10, and needle plate 10 is fixed on pressing plate 9 bottoms.Positioning splint 2 is four and constitutes two stations.Screw on the positioning splint is a strip, so that the position is finely tuned.Guidepost 4 is four.Be fixed with riser 5 on the base 1; Said pressing plate press mechanism is: 305H presss from both sides 6 fast and is installed on the riser 5, and vertical bar 7 upper ends are hinged on 305H and press from both sides the bottom fast, and vertical bar 7 lower ends are through being bolted on the pressing plate 9.
The pressing plate press mechanism can be following structure, and the one, the spiral press mechanism: fixing screw rod on the pressing plate, nut is screwed on the screw rod, and nut is fixed on (among Fig. 1) riser, the turn screw rod, pressing plate is upstream or downstream thereupon; The 2nd, the cam press mechanism: a cam is arranged at handle 6a bottom among Fig. 1; Vertical bar 7 contacts with cam, and pulling handle makes cam rotation, and vertical bar is pressed down; Descending thereupon with the pressing plate 9 that vertical bar is fixing, the return of pressing plate is realized by the retracing spring that is fixed on pressing plate and the mainboard 5.
Intelligent electric energy meter is placed on the test fixture base plate during test; Adopt the conductive component of German import INGUN probe as frock and test specimen; Realize electric energy meter and contacting of probe and fixing of electric energy meter through quick folder (305H presss from both sides fast) and pressing plate, realize through the high precision linear bearing the accurate location of probe.When quick folder presses down; Probe contacts with the contact of test ammeter; The probe afterbody is connected with test fixture, and then connects testing apparatus, and the difference mode of cut-offfing through the different buttons of test fixture panel makes up; The mode of connection of frock base close beta instrument and test specimen be can change, the alternating voltage and the impulse test of all test points realized.Mini-test is accomplished when needing the change pilot project, and the connecting line that changes testing tool and test fixture gets final product, and need not the intelligent movable electric energy meter.Test will be pressed from both sides handle fast and upwards lift after being accomplished, and probe is separated with tested electric energy meter, accomplish whole test.During test, pressing plate is depressed probe.
Base is made up of header board, back plate, left side plate, upper and lower bottom plate etc.
Utilize the three-phase test fixture to carry out dielectric test to two three-phase intelligent electric energy meters simultaneously, the inner copper cash that insulation course is arranged that adopts of test fixture is as connecting line, and connecting line all is encapsulated in the frock base.Afterbody links to each other with probe, is used for contacting with tested ammeter.Wherein primary probe is 10; Respectively with the A phase current of tested three-phase intelligent electric energy meter+,-end, A phase voltage end; The B phase current+,-end, B phase voltage end; The C phase current+,-end, C phase voltage end and earth terminal link to each other, and 15 of assist probes link to each other with the auxiliary terminal of tested electric energy meter; Be respectively tripping operation Chang Kaiduan, tripping operation common port, tripping operation normal-closed end, warning+,-end, meritorious pulse+,-end, common, multi-functional+,-end, RS485 communication interface 1+ ,-end, RS485 communication interface 2+ ,-hold and common.When handle pressed down, probe fully contacted with table, makes the line conducting.Test fixture base right part has high-end and two jacks of low side; Link to each other with the base inner lead through copper sheet in the jack; Utilize lead that the output terminal of testing tool is linked to each other with the low side jack with the high-end of test fixture respectively with the ground end; Can realize that testing tool provides experimental voltage to frock, accomplish corresponding experiment.
The wiring of two three-phase tables and test fixture is as shown in Figure 5.When testing over the ground; All voltage, current terminal are selected it is linked as a bit through on off state; This point is through the high-end Hi-pot Tester output terminal that is connected to of test fixture, and all auxiliary terminals are through voltage-withstand test frock low side ground connection, and trial voltage is added between voltage, current terminal and the ground.When carrying out testing between each unconnected each circuit in the work; Selection through on off state; Make current voltage or current circuit through the high-end output terminal that is connected to Hi-pot Tester of test fixture; All other routes are linked as a bit, and trial voltage is added in this point and needs between the voltage or current terminal of test.
Carry out impulse test, when testing over the ground, the electric current and voltage terminal is through the high-end Hi-pot Tester output terminal that is connected to of test fixture, and all auxiliary terminals are through voltage-withstand test frock low side ground connection, and trial voltage is added between electric current and voltage terminal and the ground.
Base, pressing plate and clamping plate all adopt the black bakelite as sheet material, bakelite have do not absorb water, characteristic such as non-conductive, high temperature resistant, intensity height, be widely used in electric product; With the conductive component of German import INGUN probe as frock and test specimen, the INGUN probe conducts electricity very well, and elasticity is stronger, and the life-span can reach 1,000,000 times, adopts free plug mode on the probe design, takes off replacing after the damage easily.In addition, the INGUN probe has advantages of higher stability, can reduce False Rate greatly, is widely used in the exact instrument field tests at present.
With the intelligent electric energy meter through mutual inductor is example, and the test embodiment is following:
1, test specimen is positioned on the test fixture base plate, makes the intelligent electric energy meter stationkeeping and depress quick folder, make the corresponding one by one and fully contact of probe and test specimen connection terminal through regulating positioning splint.Connect surge generator and test fixture with connecting line.
2, all buttons of test fixture front panel are out state, carry out the impulse test of all line-to-grounds.
3, carry out of the impulse test of every current circuit respectively to All other routes.The current circuit button of the test of carrying out is opened, and turn-offs all the other buttons.
4, carry out of the impulse test of every voltage circuit respectively to All other routes.The voltage circuit button of the test of carrying out is opened, and turn-offs all the other buttons.Impulse test is accomplished.
5, change connecting line, connect Hi-pot Tester and test fixture.Carry out AC voltage withstand test.
6, after test is accomplished, lift quick folder, take off intelligent electric energy meter, close the testing tool power supply, off-test.
Utilize the three-phase test fixture to carry out dielectric test to two three-phase intelligent electric energy meters simultaneously, the inner copper cash that adopts of test fixture presses down the handle probe and contacts with showing terminal base as connecting line, makes the line conducting.The wiring of two three-phase tables and test fixture is as shown in Figure 5.When testing over the ground; All voltage, current terminal are selected it is linked as a bit through on off state; This point is through the high-end Hi-pot Tester output terminal that is connected to of test fixture, and all auxiliary terminals are through voltage-withstand test frock low side ground connection, and trial voltage is added between voltage, current terminal and the ground.When carrying out testing between each unconnected each circuit in the work; Selection through on off state; Make current voltage or current circuit through the high-end output terminal that is connected to Hi-pot Tester of test fixture; All other routes are linked as a bit, and trial voltage is added in this point and needs between the voltage or current terminal of test.
Carry out impulse test, when testing over the ground, the electric current and voltage terminal is through the high-end Hi-pot Tester output terminal that is connected to of test fixture, and all auxiliary terminals are through voltage-withstand test frock low side ground connection, and trial voltage is added between electric current and voltage terminal and the ground.
Claims (7)
1. three-phase intelligent electric energy meter alternating voltage pulses voltage tester frock; It is characterized in that; The base of cuboid (1) upper surface upper edge long side direction is uniformly distributed with through bolt and is fixed with a plurality of positioning splints (2); Be configured for putting a station of ammeter to be tested (11) between adjacent two positioning splints, be fixed with many guideposts (4) on base (1) upper surface, pressing plate (9) is enclosed within on the guidepost through the perforate on it versatilely; Also has the pressing plate press mechanism; Pressing plate (9) bottom is fixed with many group probes (8), is made up of 10 primary probes and 15 assist probes corresponding to one group of probe of an ammeter to be tested; Every group of probe connects by following mode: when pressing plate is depressed; Contacted 10 primary probes of A phase current+end, A phase current-end, A phase voltage end, B phase current+end, B phase current-end, B phase voltage end, C phase current+end, C phase current-end, C phase voltage end and earth terminal with ammeter to be tested are connected to the high-end jack on the base (1) through lead and switch respectively respectively; When pressing plate is depressed; With the tripping operation Chang Kaiduan of ammeter to be tested, the common port that trips, tripping operation normal-closed end, warning+end, warning-end, meritorious pulse+end, meritorious pulse-end, common, multi-functional+end, multi-functional-as to hold, RS485 communication interface 1+ end, RS485 communication interface 1-end, RS485 communication interface 2+ end, RS485 communication interface 2-end and contacted 15 assist probes of common are connected to the low side jack on the base (1) through lead and switch respectively respectively; Low side jack on the base is used separately as earth terminal and the output terminal that is connected Hi-pot Tester with high-end jack.
2. three-phase intelligent electric energy meter alternating voltage pulses voltage tester frock according to claim 1 is characterized in that said guidepost (4) is four.
3. three-phase intelligent electric energy meter alternating voltage pulses voltage tester frock according to claim 2 is characterized in that said positioning splint (2) is four and constitutes two stations.
4. three-phase intelligent electric energy meter alternating voltage pulses voltage tester frock according to claim 3 is characterized in that, said probe (8) adopts German INGUN probe.
5. according to the described three-phase intelligent electric energy meter of the arbitrary claim of claim 1-4 alternating voltage pulses voltage tester frock, it is characterized in that, be fixed with riser (5) on the said base (1); Said pressing plate press mechanism is: 305H presss from both sides (6) fast and is installed on the riser (5), and vertical bar (7) upper end is hinged on 305H and presss from both sides the bottom fast, and vertical bar (7) lower end is through being bolted on the pressing plate (9).
6. three-phase intelligent electric energy meter alternating voltage pulses voltage tester frock according to claim 5 is characterized in that said base (1) is a black bakelite base.
7. three-phase intelligent electric energy meter alternating voltage pulses voltage tester frock according to claim 6 is characterized in that said every group of probe stationary is on a needle plate (10), and needle plate (10) is fixed on pressing plate (9) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220233233 CN202631726U (en) | 2012-05-23 | 2012-05-23 | Tool for testing three-phase intelligent ammeter under alternating-current voltage and pulse voltage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220233233 CN202631726U (en) | 2012-05-23 | 2012-05-23 | Tool for testing three-phase intelligent ammeter under alternating-current voltage and pulse voltage |
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| Publication Number | Publication Date |
|---|---|
| CN202631726U true CN202631726U (en) | 2012-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220233233 Expired - Lifetime CN202631726U (en) | 2012-05-23 | 2012-05-23 | Tool for testing three-phase intelligent ammeter under alternating-current voltage and pulse voltage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102662153A (en) * | 2012-05-23 | 2012-09-12 | 四川电力科学研究院 | Three-phase smart electricity meter alternating voltage impulse voltage test tool |
-
2012
- 2012-05-23 CN CN 201220233233 patent/CN202631726U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102662153A (en) * | 2012-05-23 | 2012-09-12 | 四川电力科学研究院 | Three-phase smart electricity meter alternating voltage impulse voltage test tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20140115 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee |
Owner name: ELECTRIC POWER RESEARCH INSTITUTE, STATE GRID SICH Free format text: FORMER NAME: SICHUAN ELECTRIC POWER RESEARCH INSTITUTE |
|
| CP03 | Change of name, title or address |
Address after: Tsing Hua Road Qingyang District of Chengdu City, Sichuan Province, No. 24 610072 Patentee after: STATE GRID SICHUAN ELECTRIC POWER Research Institute Address before: Tsing Hua Road Qingyang District of Chengdu City, Sichuan Province, No. 24 610071 Patentee before: Sichuan Electric power Research Institute |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140115 Address after: Tsing Hua Road Qingyang District of Chengdu City, Sichuan Province, No. 24 610072 Patentee after: STATE GRID SICHUAN ELECTRIC POWER Research Institute Patentee after: State Grid Corporation of China Address before: Tsing Hua Road Qingyang District of Chengdu City, Sichuan Province, No. 24 610072 Patentee before: STATE GRID SICHUAN ELECTRIC POWER Research Institute |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |