CN101556324B - Pressure test device and method thereof for multi-epitope electric energy meter - Google Patents

Pressure test device and method thereof for multi-epitope electric energy meter Download PDF

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Publication number
CN101556324B
CN101556324B CN2009103022586A CN200910302258A CN101556324B CN 101556324 B CN101556324 B CN 101556324B CN 2009103022586 A CN2009103022586 A CN 2009103022586A CN 200910302258 A CN200910302258 A CN 200910302258A CN 101556324 B CN101556324 B CN 101556324B
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electric energy
energy meter
test
pressure
epi
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CN101556324A (en
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成国胜
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Shenzhen Clou Electronics Co Ltd
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Shenzhen Clou Electronics Co Ltd
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Abstract

The invention provides a pressure test device for a multi-epitope electric energy meter, which comprises a control PC, a pressure test unit for the multi-epitope electric energy meter, and an electricenergy meter; the pressure test unit for the multi-epitope electric energy meter comprises a system controller, a high voltage switching relay, a high voltage generator and an epitope control module; the control PC is connected with the system controller which is respectively connected with the high voltage switching relay, the high voltage generator and the epitope control module; the high volta ge switching relay is connected with the high voltage generator and the electric energy meter; and the epitope control module is connected with the electric energy meter. The pressure test device for the multi-epitope electric energy meter controls the software by operating the system controller or the PC, and automatically finishes the automatic switching test of various pressure test items of the electric energy meter on each epitope according to a set proposal.

Description

Multi-epitope electric energy meter Withstand test device and method thereof
Technical field
The present invention relates to a kind of withstand voltage test method, particularly about a kind of multi-epitope electric energy meter Withstand test device and method thereof.
Background technology
In electric system, various electric energy meters all need carry out the withstand voltage test of the alternating voltage test in the dielectric test before being installed to electrical network, inspection technology index, safe in utilization to guarantee.Because the electric energy meter use amount is increasing; Each batch all need be by sampling standard sampling the carrying out withstand voltage test of alternating voltage; For single test more electric energy table; Improve the work efficiency of quality inspection, metrological service, need the epi-position number of Withstand test device more and more, automaticity is increasingly high.
When carrying out the withstand voltage test of alternating voltage, prior art is to utilize pressure-resistant tester, through manual type; Need carry out the diverse location wiring test of alternating voltage withstand voltage test at electric energy meter; Change a pilot project and need change wiring, and can only carry out the withstand voltage test of the alternating voltage of single electric energy meter at every turn, when checking and accepting electric energy meter in enormous quantities; Existing testing equipment and test method need drop into great amount of manpower, time cost, and workload is big, efficient is low.
During existing batch electric energy meter withstand voltage test, often need by single electric energy meter manual work one by one project carry out withstand voltage test, when a plurality of projects of electric energy meter are carried out withstand voltage test, need pilot project of every switching to change the artificial mode of connection of a connection box of electric energy meter.
This method has increased workload greatly, influences efficient.
Summary of the invention
In order to overcome the deficiency of above-mentioned prior art, the present invention provides a kind of withstand voltage test method of multi-epitope electric energy meter efficiently.
In order to overcome the deficiency of above-mentioned prior art, the present invention provides a kind of Withstand test device of multi-epitope electric energy meter efficiently.
The technical solution adopted for the present invention to solve the technical problems is: a kind of multi-epitope electric energy meter withstand voltage test method is provided, and it may further comprise the steps: system controller sends corresponding switching, the output order of first pilot project; The high pressure transfer relay receives taken temperature high-end channel instruction of high pressure and execution; The epi-position control module receives the high pressure low side passage of being taken temperature, leakage current detects instruction, carries out the high pressure low side instruction of being taken temperature by said epi-position controller control epi-position high pressure transfer relay; Starting leakage current by said epi-position controller detects; High pressure generator receives the high pressure output order and carries out; When the first pilot project test period finished, said system controller gave an order and closes high pressure output to high pressure generator, and said system controller switches the high-end passage of high pressure and discharges, reads simultaneously each epi-position test figure; Said system controller reading of data ends up being first pilot project and accomplishes, and said system controller sends corresponding switching, the output order of second pilot project simultaneously.
The scheme that the present invention solves further technical matters is: when said epi-position control module is carried out the instruction of said system controller; Described epi-position controller detects the epi-position leakage current in real time in process of the test; When leakage current is overproof, excise the test of corresponding epi-position according to the threshold value that is provided with, to avoid influencing other epi-positions tests.
The scheme that the present invention solves further technical matters is: it is high-end that the high-pressure channel instruction IO port transmission through said system control detection treatment circuit is chosen as the high pressure of being taken temperature accordingly to high pressure transfer relay actuating unit high-pressure channel.
The scheme that the present invention solves further technical matters is: the epi-position high-pressure channel instruction of device experiment project is transferred to the epi-position control module through the RS485 of said system control detection treatment circuit.
The scheme that the present invention solves further technical matters is: the epi-position controller of epi-position control module is selected to be taken temperature the high pressure low side accordingly and start the leakage current test function according to receiving instruction control epi-position high pressure transfer relay actuating unit high-pressure channel.
The scheme that the present invention solves further technical matters is: the instruction of output high pressure is transferred to high pressure generator through the RS485 of said system control detection treatment circuit, exports corresponding high pressure by high pressure generator.
The scheme that the present invention solves further technical matters is: a kind of multi-epitope electric energy meter Withstand test device is provided; It comprises control PC, multi-epitope electric energy meter withstand voltage test unit and the electric energy meter that connects successively; Described multi-epitope electric energy meter withstand voltage test unit comprises system controller, high pressure transfer relay, high pressure generator and epi-position control module; Described control PC is connected with this system controller; This system controller is connected with this high pressure transfer relay, high pressure generator and epi-position control module respectively, and this high pressure transfer relay links to each other with this high pressure generator and electric energy meter, and this epi-position control module links to each other with electric energy meter one by one.
The scheme that the present invention solves further technical matters is: this system controller comprises system's control detection treatment circuit, power circuit and high-voltage detector, and this system's control detection treatment circuit links to each other with this power circuit and high-voltage detector respectively.
The scheme that the present invention solves further technical matters is: further comprise LCD and input keyboard; Withstand voltage safety door and withstand voltage safety warning light; Said system control detection treatment circuit is transferred to LCD with test parameters and test findings; Realize the output human-machine interactive information, with system requirements parameter input system controls device, realize the input human-machine interactive information through input keyboard.
The scheme that the present invention solves further technical matters is: the RS232 of described system control detection treatment circuit, IO port, P1, P2, RS485 are connected with control PC, high pressure transfer relay, withstand voltage safety door, withstand voltage security warning, high pressure generator, high-voltage detector and epi-position control module respectively.
Compared to prior art, multi-epitope electric energy meter Withstand test device provided by the invention is accomplished the automatic switchover test of the various withstand voltage test projects of electric energy meter on each epi-position automatically through operating system controller or PC Control Software according to the setting scheme.Compared with prior art; The present invention need not carry out artificial wiring to each alternating voltage withstand voltage test project of electric energy meter through independent one one; But many batches of tests of accomplishing all items according to the scheme of setting automatically; Significantly reduce workload, saved great amount of manpower and time cost, and significantly improved the work efficiency of electric energy meter alternating voltage withstand voltage test in batches.
Description of drawings
Fig. 1 is the theory diagram of the present invention's multi-epitope electric energy meter Withstand test device of implementing to provide;
Fig. 2 is the system controller theory diagram of the present invention's multi-epitope electric energy meter Withstand test device of implementing to provide;
Fig. 3 is system's control detection treatment circuit structural principle block diagram of the multi-epitope electric energy meter Withstand test device that provides of the embodiment of the invention;
Fig. 4 is the circuit construction of electric power theory diagram of the multi-epitope electric energy meter Withstand test device that provides of the embodiment of the invention;
Fig. 5 is the high-voltage detector structural principle block diagram of the multi-epitope electric energy meter Withstand test device that provides of the embodiment of the invention;
Fig. 6 is the high pressure generator structural principle block diagram of the multi-epitope electric energy meter Withstand test device that provides of the embodiment of the invention;
Fig. 7 is the epi-position control module structural principle block diagram of the multi-epitope electric energy meter Withstand test device that provides of the embodiment of the invention.
Embodiment
As shown in Figure 1, the invention provides a kind of multi-epitope electric energy meter Withstand test device, it comprises control PC101, multi-epitope electric energy meter withstand voltage test unit 102 and the electric energy meter 107 that connects successively.Described multi-epitope electric energy meter withstand voltage test unit 102 comprises system controller 103, high pressure transfer relay 104, high pressure generator 105 and epi-position control module 106.
Described control PC101 is connected with this system controller 103.This system controller 103 is connected with this high pressure transfer relay 104, high pressure generator 105 and epi-position control module 106 respectively.This high pressure transfer relay 104 links to each other with this high pressure generator 105 and electric energy meter 107.This epi-position control module 106 links to each other with electric energy meter 107 one by one.
This multi-epitope electric energy meter Withstand test device further comprises LCD and input keyboard, withstand voltage safety door and withstand voltage safety warning light.
It is high-end with the withstand voltage test that the high-end access of alternating voltage is tried electric energy meter that this system controller 103 is used to control the high pressure transfer relay; And control output high voltage of high-voltage generator.This epi-position control module 106 inserts by the withstand voltage test low side of examination electric energy meter through the sampling of epi-position leakage current through the low side of epi-position controller control epi-position high pressure transfer relay with alternating voltage; And occur excising this epi-position test when defective automatically and the test that do not influence other epi-position in certain epi-position.
Control PC101 sends the system controller 103 of various TDs to multi-epitope electric energy meter withstand voltage test unit 102 through PC software wherein; Accomplish all tests by system controller 103 control multi-epitope electric energy meter withstand voltage test unit 102, control PC101 reads test findings from system controller 103.Electric energy meter 107 is the instrument that are about to be installed to electrical network, and the loop to be tested with multi-epitope electric energy meter withstand voltage test unit 102.
As shown in Figure 2, this system controller 103 comprises system's control detection treatment circuit 201, power circuit 202 and high-voltage detector 203.This system's control detection treatment circuit 201 links to each other with this power circuit 202 and high-voltage detector 203 respectively.Power circuit 202 provides working power for system's control detection treatment circuit 201, and high-voltage detector 203 is carried out the respective detection action according to the instruction of system's control detection treatment circuit 201.
The RS232 of described system control detection treatment circuit 201, IO port, P1, P2, RS485 (multichannel) are connected with control PC101, high pressure transfer relay 104, withstand voltage safety door, withstand voltage security warning, high pressure generator 105, high-voltage detector 203 and epi-position control module 106 respectively.According to the TD of control PC101, the system's control detection treatment circuit 201 withstand voltage security warning of control, device high pressure transfer relay in real time selects the high-end passage of high pressure, epi-position control module to select high pressure low side passage and detection starting leakage current, output high voltage of high-voltage generator, high-voltage detector to detect high pressure; And detect the safety signal of withstand voltage safety door in real time; Thereby the withstand voltage test of the non-interfering pilot project that automaticallyes switch of control test epi-position.
Said system control detection treatment circuit 201 is transferred to LCD with test parameters and test findings, realizes the output human-machine interactive information.With system requirements parameter input system controls device, realize the input human-machine interactive information through input keyboard.
It is high-end that the high-pressure channel instruction IO port transmission through said system control detection treatment circuit is chosen as the high pressure of being taken temperature accordingly to high pressure transfer relay actuating unit high-pressure channel;
The epi-position high-pressure channel instruction of device experiment project is transferred to the epi-position control module through the RS485 of said system control detection treatment circuit;
The epi-position controller of epi-position control module is selected to be taken temperature the high pressure low side accordingly and start the leakage current test function according to receiving instruction control epi-position high pressure transfer relay actuating unit high-pressure channel;
The instruction of output high pressure is transferred to high pressure generator through the RS485 of said system control detection treatment circuit, exports corresponding high pressure by high pressure generator.
When said epi-position control module is carried out the instruction of said system controller; Described epi-position controller detects the epi-position leakage current in real time in process of the test; When leakage current is overproof, excise the test of corresponding epi-position according to the threshold value that is provided with, to avoid influencing other epi-positions tests.
This epi-position control module detects epi-position withstand voltage test leakage current, and whether satisfactory principle is: control PC through system controller simultaneously to the instruction of the epi-position controller detection starting leakage current of each epi-position control module and set the leakage current threshold value; Each epi-position controller according to instruction the leakage current of corresponding epi-position is detected and with threshold value relatively; Automatically judge that then this pilot project of this epi-position is defective if surpass threshold value, and excise the withstand voltage test and preservation data of this epi-position automatically; Then when this pilot project withstand voltage test countdown finishes, preserve data if be lower than threshold value, read the withstand voltage data of corresponding epi-position and offer control PC by system controller.
Enforcement provided by the invention may further comprise the steps the multi-epitope electric energy meter withstand voltage test method:
(1) system controller sends corresponding switching, the output order of first pilot project;
(2) the high pressure transfer relay receives taken temperature high-end channel instruction of high pressure and execution;
(3) the epi-position control module receives the high pressure low side passage of being taken temperature, leakage current detects instruction, carries out the high pressure low side instruction of being taken temperature by said epi-position controller control epi-position high pressure transfer relay; Starting leakage current by said epi-position controller detects;
(4) high pressure generator receives the high pressure output order and carries out;
When (5) first pilot project test periods finished, said system controller gave an order and closes high pressure output to high pressure generator, and said system controller switches the high-end passage of high pressure and discharges, reads simultaneously each epi-position test figure;
(6) said system controller reading of data ends up being the completion of first pilot project, and said system controller sends corresponding switching, the output order of second pilot project simultaneously.
System repeats above step and makes an experiment, and accomplishes until all pilot projects.
Described system control detection treatment circuit, power circuit, high-voltage detector, high pressure generator and epi-position control module structural principle block diagram are extremely shown in Figure 7 like Fig. 3 respectively.
The circuit that enforcement provided by the invention with the multi-epitope electric energy meter Withstand test device, is automatically switched electric energy meter withstand voltage test project pilot passageway integrates; Through operating system controller or PC Control Software, accomplish the automatic switchover test of the various withstand voltage test projects of electric energy meter on each epi-position automatically according to the setting scheme.Compared with prior art; The present invention need not carry out artificial wiring to each alternating voltage withstand voltage test project of electric energy meter through independent one one; But many batches of tests of accomplishing all items according to the scheme of setting automatically; Significantly reduce workload, saved great amount of manpower and time cost, and significantly improved the work efficiency of electric energy meter alternating voltage withstand voltage test in batches.

Claims (9)

1. multi-epitope electric energy meter Withstand test device; It is characterized in that: it comprises control PC, multi-epitope electric energy meter withstand voltage test unit and the electric energy meter that connects successively, and described multi-epitope electric energy meter withstand voltage test unit comprises system controller, the high pressure transfer relay; High pressure generator and epi-position control module; Described control PC is connected with this system controller, and this system controller is connected with this high pressure transfer relay, high pressure generator and epi-position control module respectively, and this high pressure transfer relay links to each other with this high pressure generator and electric energy meter; This epi-position control module links to each other with electric energy meter one by one; Wherein, this system controller comprises system's control detection treatment circuit, power circuit and high-voltage detector; This system's control detection treatment circuit links to each other with this power circuit and high-voltage detector respectively, and it is high-end with the withstand voltage test that the high-end access of alternating voltage is tried electric energy meter that this system controller is used to control the high pressure transfer relay; And control output high voltage of high-voltage generator.
2. multi-epitope electric energy meter Withstand test device according to claim 1; It is characterized in that: further comprise LCD and input keyboard; Withstand voltage safety door and withstand voltage safety warning light, said system control detection treatment circuit is transferred to LCD with test parameters and test findings, realizes the output human-machine interactive information; With system requirements parameter input system controls device, realize the input human-machine interactive information through input keyboard.
3. multi-epitope electric energy meter Withstand test device according to claim 2 is characterized in that: the RS232 of described system control detection treatment circuit, IO port, P1, P2, RS485 are connected with control PC, high pressure transfer relay, withstand voltage safety door, withstand voltage security warning, high pressure generator, high-voltage detector and epi-position control module respectively.
4. multi-epitope electric energy meter withstand voltage test method that uses the described multi-epitope electric energy meter Withstand test device of claim 1, it may further comprise the steps: system controller sends corresponding switching, the output order of first pilot project; The high pressure transfer relay receives taken temperature high-end channel instruction of high pressure and execution; The epi-position control module receives the high pressure low side passage of being taken temperature, leakage current detects instruction, carries out the high pressure low side instruction of being taken temperature by said epi-position controller control epi-position high pressure transfer relay; Starting leakage current by said epi-position controller detects; High pressure generator receives the high pressure output order and carries out; When the first pilot project test period finished, said system controller gave an order and closes high pressure output to high pressure generator, and said system controller switches the high-end passage of high pressure and discharges, reads simultaneously each epi-position test figure; Said system controller reading of data ends up being first pilot project and accomplishes, and said system controller sends corresponding switching, the output order of second pilot project simultaneously.
5. according to the multi-epitope electric energy meter withstand voltage test method of the described multi-epitope electric energy meter Withstand test device of the said use of claim 4 claim 1; It is characterized in that: when said epi-position control module is carried out the instruction of said system controller; Described epi-position controller detects the epi-position leakage current in real time in process of the test; When leakage current is overproof, excise the test of corresponding epi-position according to the threshold value that is provided with, to avoid influencing other epi-positions tests.
6. according to the multi-epitope electric energy meter withstand voltage test method of the described multi-epitope electric energy meter Withstand test device of the said use of claim 5 claim 1, it is characterized in that: it is high-end that the high-pressure channel instruction IO port transmission through said system control detection treatment circuit is chosen as the high pressure of being taken temperature accordingly to high pressure transfer relay actuating unit high-pressure channel.
7. according to the multi-epitope electric energy meter withstand voltage test method of the described multi-epitope electric energy meter Withstand test device of the said use of claim 6 claim 1, it is characterized in that: the epi-position high-pressure channel instruction of device experiment project is transferred to the epi-position control module through the RS485 of said system control detection treatment circuit.
8. according to the multi-epitope electric energy meter withstand voltage test method of the described multi-epitope electric energy meter Withstand test device of the said use of claim 7 claim 1, it is characterized in that: the epi-position controller of epi-position control module is selected to be taken temperature the high pressure low side accordingly and start the leakage current test function according to receiving instruction control epi-position high pressure transfer relay actuating unit high-pressure channel.
9. the multi-epitope electric energy meter withstand voltage test method of the described multi-epitope electric energy meter Withstand test device of said according to Claim 8 use claim 1; It is characterized in that: the instruction of output high pressure is transferred to high pressure generator through the RS485 of said system control detection treatment circuit, exports corresponding high pressure by high pressure generator.
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CN102236087A (en) * 2011-01-31 2011-11-09 浙江省电力公司 Withstand voltage test device and method of three-phase electric energy meter
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