CN107064853A - Electric energy meter pressure-resistant test system and method with test voltage automatic switching function - Google Patents
Electric energy meter pressure-resistant test system and method with test voltage automatic switching function Download PDFInfo
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- CN107064853A CN107064853A CN201710179417.2A CN201710179417A CN107064853A CN 107064853 A CN107064853 A CN 107064853A CN 201710179417 A CN201710179417 A CN 201710179417A CN 107064853 A CN107064853 A CN 107064853A
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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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Abstract
The invention discloses the electric energy meter pressure-resistant test system and method with test voltage automatic switching function, the wherein system includes：Alternating voltage tester, it has multiple voltage output ends for being used to export different voltages；Each voltage output end of alternating voltage tester and a relay are corresponded, each relay has control signal and control output end, each control output end includes common port and output connection end, and the output connection end of each relay is connected with a voltage output end of alternating voltage tester；All common ports of relay interconnect composition test voltage output end and are connected with electric energy meter to be tested；The control signal of each relay is connected with controller；In test, wherein relay is in the conduction state all the way for controller control, and other road relays are off-state, so that the selection to test voltage is realized, and the test for voltage endurance capability being carried out in the test voltage loading of selection to electric energy meter to be measured.
Description
Technical field
The invention belongs to electric energy meter detection field, more particularly to a kind of electric energy meter with test voltage automatic switching function
Pressure-resistant test system and method.
Background technology
The ac voltage withstanding experiment of electric energy meter is the destructive testing carried out to intelligent electric energy meter.Must before ac voltage withstanding experiment
It must first ensure that the outside for being tested electric energy meter is clean and is removed unnecessary wiring etc..If it was found that outside electric energy meter absolutely
Edge situation is bad (such as making moist and local defect), does pressure test again after should generally being handled, it is to avoid cause unnecessary
Insulation breakdown, for production firm, effective guarantor that quality is electric energy meter quality is strengthened in strict control technological process in manufacturing and designing
Card, metrological service strengthens being the means to its effective supervision to electric energy meter pressure test.
To test the voltage endurance capability of electric energy meter, it is necessary to different to electric energy meter application amplitude using alternating voltage test device
Alternating voltage.It is existing that artificial calibrating installation is generally used to electric energy meter pressure test.And artificial calibrating installation generally requires metering
Personnel enter luggage table and wiring according to test requirements document, at the same generally the device and error verification device do not share, it is necessary to
More changing device carries out the calibrating of the functions such as error after pressure test terminates, therefore existing electric energy meter pressure-resistant apparatus has following ask
Topic：
(1) do not possess multi-scheme automatic switching function, needed every time before test again according to test voltage rewiring, behaviour
Make cumbersome, the workload of metrological personnel is than larger, inefficiency；
(2) in electric energy meter pressure test, the dynamic detection to leakage current is have ignored, is flowed through when being leaked electricity in detection process
Gao Shi, is likely to result in the damage of electric energy meter to be measured.
The content of the invention
In order to solve the deficiencies in the prior art, the invention provides a kind of electric energy with test voltage automatic switching function
Table pressure-resistant test system, it simplifies test operation, improves testing efficiency；Realize the real-time inspection to the pressure-resistant leakage current of electric energy meter
Survey.
A kind of electric energy meter pressure-resistant test system with test voltage automatic switching function of the present invention, including：
Alternating voltage tester, it has multiple voltage output ends for being used to export different voltages；Alternating voltage tester
Each voltage output end and relay correspond, each relay has control signal and control output end, often
Individual control output end includes common port and output connection end, the output connection end of each relay with alternating voltage tester
One voltage output end is connected；All common ports of relay, which are interconnected, constitutes test voltage output end and electric energy meter to be tested
It is connected；The control signal of each relay is connected with controller, for controlling the break-make between common port and output connection end
State；In test, wherein relay is in the conduction state all the way for controller control, and other road relays are off-state, from
And the selection to test voltage is realized, and the survey for voltage endurance capability being carried out in the test voltage loading of selection to electric energy meter to be measured
Examination.
Further, the electric energy meter pressure-resistant test system with test voltage automatic switching function also includes electric leakage inspection
Instrument is surveyed, leakage detector is connected with electric energy meter to be tested.
The present invention is respectively connected with test voltage output end by each leakage detector with each tested electric energy meter, passes through leakage
Electro-detection instrument can realize the detection of leakage current.
Further, the leakage detector is also connected with server, and the server is connected with precaution device, the service
Device is used to receive the next leakage current value of leakage detector transmission and compared with default leakage current threshold value, if the former is more than the latter,
Then server exports warning message to precaution device.
The present invention is also monitored in real time to the leakage current that leakage detector is detected, it is to avoid the leakage current value detected surpasses
Default leakage current threshold value is crossed, and electric energy meter to be measured is caused to damage.
Further, current sensing means, the electric current are also serially connected between the common port of relay and output connection end
Detection means is connected with controller, and current sensing means is used to detect the break-make information of relay in real time and feeds back to controller,
For ensureing that the voltage signal of alternating voltage tester output is reliably linked into electric energy meter to be measured.
Further, being sticked on electric energy meter to be measured has the Quick Response Code for including electric energy Table Properties；The server also with control
Device processed is connected；The electric energy meter pressure-resistant test system with test voltage automatic switching function also includes scanning means, and it is used
In scanning the Quick Response Code being attached on electric energy meter to be measured and being sent to server, the server transmits the controller received
Pressure voltage simultaneously carries out classification storage according to electric energy Table Properties.
The pressure voltage and leakage current value that can be so tested electric energy meter to be measured carry out classification storage, are that the later stage is resistance to
Pressure test provides corresponding numeric reference, to provide testing efficiency.
Present invention also offers a kind of based on the electric energy meter pressure-resistant test system with test voltage automatic switching function
Method of testing.
A kind of test side based on the electric energy meter pressure-resistant test system with test voltage automatic switching function of the present invention
Method, including：
(1) preparation before testing；
A voltage output end by the output connection end of each relay with alternating voltage tester is attached；
All common ports of relay, which are interconnected, to be constituted test voltage output end and is attached with electric energy meter to be tested；
The control signal of each relay is attached with controller, for controlling the break-make shape between common port and output connection end
State；
(2) in test process；
In test, wherein relay is in the conduction state all the way for controller control, and other road relays are off-state,
So as to realize the selection to test voltage, and the survey for voltage endurance capability being carried out in the test voltage loading of selection to electric energy meter to be measured
Examination.
Further, methods described also includes：The electricity to be tested in test process is detected in real time using leakage detector
The leakage current value of energy table.
Further, in test process, the leakage current value detected is also communicated to server by leakage detector, service
Device receives the next leakage current value of leakage detector transmission and compared with default leakage current threshold value, if the former is more than the latter, takes
Business device exports warning message to precaution device.
Further, this method also includes：The concatenation current detecting dress between the common port of relay and output connection end
Put, detect the break-make information of relay in real time using current sensing means and feed back to controller, for ensureing that alternating voltage is surveyed
The voltage signal of examination instrument output is reliably linked on corresponding electric energy meter.
Further, this method also includes：Quick Response Code and the transmission being attached on electric energy meter to be measured are scanned using scanning means
To server, pressure voltage that server transmits the controller received simultaneously carries out classification storage according to electric energy Table Properties.
Compared with prior art, the beneficial effects of the invention are as follows：
(1) alternating voltage tester can export multiple voltage, and each voltage output end respectively passes through a relay
It is connected with tested electric energy meter, pressure-resistant survey is carried out to electric energy meter by controlling the break-make of each relay that one voltage may be selected
Examination, can be switched fast between different testing schemes, without line again, simplify test operation, improve survey
Try efficiency；
(2) test voltage output end is respectively connected with by each leakage detector with each tested electric energy meter, is examined by leaking electricity
The detection of leakage current can be realized by surveying instrument；
(3) present invention quickly and automatically can also be controlled to each relay and alternating voltage tester, moreover it is possible to real
When receive leakage detector result, and leakage current exceed thresholding after alarmed.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its illustrate be used for explain the application, do not constitute the improper restriction to the application.
Fig. 1 is the electric energy meter pressure-resistant test system structural representation with test voltage automatic switching function of the present invention；
Fig. 2 is the method for testing stream of the electric energy meter pressure-resistant test system with test voltage automatic switching function of the present invention
Cheng Tu.
Embodiment
It is noted that described further below is all exemplary, it is intended to provide further instruction to the application.Unless another
Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
Controller in the present invention can be PLC or other single-chip microcomputers.
The server of the present invention is also connected with host computer.
The electric energy meter pressure-resistant test system with test voltage automatic switching function of the present invention includes one or two
Server.
If a server, then the server is connected with controller and leakage detector respectively.
If two servers, then a server is connected with controller, and another server is connected with leakage detector.
Below by taking two servers as an example：
Such as Fig. 1, a kind of electric energy meter pressure-resistant test system with test voltage automatic switching function, including alternating voltage are surveyed
Instrument 6 is tried, the alternating voltage tester 6 has two voltage output ends for being used to export different voltages, for example：Exportable 4kV,
2kV and 500V multiple voltages, also can customize the output voltage of each voltage output end；In the present embodiment, two voltage outputs
Output HIGH voltage respectively and low-voltage are held for the voltage-withstand test of electric energy meter.
Electric energy meter pressure-resistant test system with test voltage automatic switching function also includes each with alternating voltage tester 6
The one-to-one relay 7 of voltage output end；In the present embodiment by taking two relays as an example.
Relay 7 has control signal and control output end, and control output end includes common port and output connection end；Control
On off operating mode between input control common port processed and output connection end；The common port of each control output end of relay 7 is mutual
Test voltage output end is connected and composed, the control of each voltage output end of alternating voltage tester 6 and corresponding relay 7 is defeated
The output connection end for going out end is respectively connected with, and the test voltage output end is respectively connected with each tested electric energy meter 8.
During test, wherein one relay 7 of control is in the conduction state, and other is off-state, so as to realize to test
The selection of voltage, and voltage endurance capability will be tested in the test voltage loading to each tested electric energy meter 8.
Wherein, the electric energy meter pressure-resistant test system with test voltage automatic switching function also includes and each tested electric energy meter
8 corresponding leakage detectors 9 one by one, the test voltage output end be respectively connected with each tested electric energy meter 8 refer to it is described
Test voltage output end is respectively connected with by each leakage detector 9 with each tested electric energy meter 8, so as to realize to each tested electric energy
The real-time detection of the leakage current of table 8.
In order to realize that automatic test is operated, further improvement is made：It is described with test voltage automatic switching function
Electric energy meter pressure-resistant test system also includes host computer 1, PLC5, interchanger 2, serial server 1 and serial server 24；
The host computer 1 is connected with interchanger 2, and the serial server 1 and serial server 24 are respectively with exchanging
Machine 2 is connected；The serial server 1 and PLC5 and alternating voltage tester 6 be respectively connected with realize PLC5 and
The connection of alternating voltage tester 6 each between host computer 1；
The result output end of the serial server 24 and each leakage detector 9 be respectively connected with realize host computer 1 with
Connection between the result output end of each leakage detector 9；
The control signal of each relay 7 is respectively connected with PLC5.
Host computer 1 can complete the control to each relay 7 by PLC5, can also be to the defeated of alternating voltage tester 6
Go out voltage to be controlled, while the result of each leakage detector 9 can also be shown in real time and judge that leakage current value is according to the result
It is no to cross thresholding, alarm is sent if occurring thresholds.
Serial server 24 is connected with precaution device, for carrying out early warning to leakage current.
The present embodiment is monitored in real time to the leakage current that leakage detector is detected, it is to avoid the leakage current value detected surpasses
Default leakage current threshold value is crossed, and electric energy meter to be measured is caused to damage.
Further, current sensing means, current detecting are also serially connected between the common port of relay and output connection end
Device is connected with controller, current sensing means be used in real time detect relay break-make information and feed back to controller (for example,
PLC in Fig. 1), for ensureing that the voltage signal of alternating voltage tester output is reliably linked into electric energy meter to be measured.
Further, being sticked on electric energy meter to be measured has the Quick Response Code for including electric energy Table Properties；
When server has two, serial server 1 and during serial server 24 respectively, serial server 1 also with
PLC5 is connected；The electric energy meter pressure-resistant test system with test voltage automatic switching function also includes scanning means, and it is used
In scanning the Quick Response Code being attached on electric energy meter to be measured and being sent to serial server 1, the serial server 1 will be received
Controller transmission pressure voltage and according to electric energy Table Properties carry out classification storage.
Fig. 2 is the method for testing stream of the electric energy meter pressure-resistant test system with test voltage automatic switching function of the present invention
Cheng Tu.
As shown in Fig. 2 the present invention's is a kind of based on the electric energy meter voltage-withstand test system with test voltage automatic switching function
The method of testing of system, including：
(1) preparation before testing；
A voltage output end by the output connection end of each relay with alternating voltage tester is attached；
All common ports of relay, which are interconnected, to be constituted test voltage output end and is attached with electric energy meter to be tested；
The control signal of each relay is attached with controller, for controlling the break-make shape between common port and output connection end
State；
(2) in test process；
In test, wherein relay is in the conduction state all the way for controller control, and other road relays are off-state,
So as to realize the selection to test voltage, and the survey for voltage endurance capability being carried out in the test voltage loading of selection to electric energy meter to be measured
Examination.
In test process, the leakage current value detected is also communicated to server by leakage detector, and server receives leakage
The leakage current value that the transmission of electro-detection instrument comes simultaneously is compared with default leakage current threshold value, if the former is more than the latter, server is to pre-
Alert device output warning message.
In another embodiment, it is of the invention a kind of to survey based on the electric energy meter with test voltage automatic switching function is pressure-resistant
The method of testing of test system also includes：The electric leakage of the electric energy meter to be tested in test process is detected in real time using leakage detector
Flow valuve.
In another embodiment, it is of the invention a kind of to survey based on the electric energy meter with test voltage automatic switching function is pressure-resistant
The method of testing of test system also includes：Current sensing means is concatenated between the common port of relay and output connection end, is utilized
Current sensing means detects the break-make information of relay and feeds back to controller in real time, for ensureing that alternating voltage tester is exported
Voltage signal be reliably linked on corresponding electric energy meter.
In another embodiment, this method also includes：The Quick Response Code being attached on electric energy meter to be measured is scanned using scanning means
And it is sent to server, the pressure voltage that server transmits the controller received simultaneously carries out classification according to electric energy Table Properties and deposited
Storage.
The alternating voltage tester of the present invention can export multiple voltage, and each voltage output end respectively by one after
Electrical equipment is connected with tested electric energy meter, pressure-resistant to electric energy meter progress by controlling the break-make of each relay that one voltage may be selected
Test, can be switched fast between different testing schemes, without line again, simplify test operation, improve
Testing efficiency；
Test voltage output end is respectively connected with by each leakage detector with each tested electric energy meter, passes through leakage detector
The detection of leakage current can be achieved；
The present invention quickly and automatically can also be controlled to each relay and alternating voltage tester, moreover it is possible in real time
The result of leakage detector is received, and is alarmed after leakage current exceeds thresholding.
Although above-mentioned the embodiment of the present invention is described with reference to accompanying drawing, not to present invention protection model
The limitation enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
Need to pay various modifications or deform still within protection scope of the present invention that creative work can make.
Claims (10)
1. a kind of electric energy meter pressure-resistant test system with test voltage automatic switching function, it is characterised in that including：Alternating current
Pressure tester, it has multiple voltage output ends for being used to export different voltages；Each voltage output of alternating voltage tester
End is corresponded with a relay, and each relay has control signal and control output end, each control output end bag
Include common port and output connection end, the voltage output end of the output connection end of each relay with alternating voltage tester
It is connected；All common ports of relay interconnect composition test voltage output end and are connected with electric energy meter to be tested；Each relay
The control signal of device is connected with controller, for controlling the on off operating mode between common port and output connection end；In test,
Wherein relay is in the conduction state all the way for controller control, and other road relays are off-state, so as to realize to test electricity
The selection of pressure, and the test for voltage endurance capability being carried out in the test voltage loading of selection to electric energy meter to be measured.
2. a kind of electric energy meter pressure-resistant test system with test voltage automatic switching function as claimed in claim 1, it is special
Levy and be, the electric energy meter pressure-resistant test system with test voltage automatic switching function also includes leakage detector, electric leakage
Detector is connected with electric energy meter to be tested.
3. a kind of electric energy meter pressure-resistant test system with test voltage automatic switching function as claimed in claim 2, it is special
Levy and be, the leakage detector is also connected with server, the server is connected with precaution device, the server is used to receive
Leakage detector transmission come leakage current value simultaneously compared with default leakage current threshold value, if the former be more than the latter, server to
Precaution device exports warning message.
4. a kind of electric energy meter pressure-resistant test system with test voltage automatic switching function as claimed in claim 1, it is special
Levy and be, be also serially connected with current sensing means between the common port of relay and output connection end, the current sensing means with
Controller is connected, and current sensing means is used to detect the break-make information of relay in real time and feeds back to controller, for ensureing to hand over
The voltage signal of stream voltage tester output is reliably linked on electric energy meter to be measured.
5. a kind of electric energy meter pressure-resistant test system with test voltage automatic switching function as claimed in claim 1, it is special
Levy and be, being sticked on electric energy meter to be measured has the Quick Response Code for including electric energy Table Properties；The server is also connected with controller；
The electric energy meter pressure-resistant test system with test voltage automatic switching function also includes scanning means, and it is used to scan
The Quick Response Code that is attached on electric energy meter to be measured is simultaneously sent to server, the pressure voltage that the server transmits the controller received
And carry out classification storage according to electric energy Table Properties.
6. it is a kind of pressure-resistant based on the electric energy meter with test voltage automatic switching function as any one of claim 1-5
The method of testing of test system, it is characterised in that including：
(1) preparation before testing；
A voltage output end by the output connection end of each relay with alternating voltage tester is attached；
All common ports of relay, which are interconnected, to be constituted test voltage output end and is attached with electric energy meter to be tested；Each
The control signal of relay is attached with controller, for controlling the on off operating mode between common port and output connection end；
(2) in test process；
In test, wherein relay is in the conduction state all the way for controller control, and other road relays are off-state, so that
Realize the selection to test voltage, and the test for voltage endurance capability being carried out in the test voltage loading of selection to electric energy meter to be measured.
7. method of testing as claimed in claim 6, it is characterised in that methods described also includes：Using leakage detector come real
When detection test process in electric energy meter to be tested leakage current value.
8. method of testing as claimed in claim 7, it is characterised in that in test process, leakage detector will be detected
Leakage current value is also communicated to server, server receive the leakage current value that leakage detector transmission comes and with default leakage current thresholding
Value compares, if the former is more than the latter, server exports warning message to precaution device.
9. method of testing as claimed in claim 6, it is characterised in that this method also includes：In the common port of relay and defeated
Go out between connection end and concatenate current sensing means, detect the break-make information of relay in real time using current sensing means and feed back to
Controller, for ensureing that the voltage signal of alternating voltage tester output is reliably linked into corresponding electric energy meter.
10. method of testing as claimed in claim 6, it is characterised in that this method also includes：It is attached to using scanning means scanning
Quick Response Code on electric energy meter to be measured is simultaneously sent to server, the pressure voltage that server transmits the controller received and according to electricity
Can Table Properties progress classification storage.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710179417.2A CN107064853B (en) | 2017-03-23 | 2017-03-23 | Electric energy meter voltage withstand test system and method with automatic test voltage switching function |
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|---|---|---|---|
| CN201710179417.2A CN107064853B (en) | 2017-03-23 | 2017-03-23 | Electric energy meter voltage withstand test system and method with automatic test voltage switching function |
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| CN107064853B CN107064853B (en) | 2020-05-15 |
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| CN109143145A (en) * | 2018-09-27 | 2019-01-04 | 国网山东省电力公司电力科学研究院 | A kind of ac voltage withstanding detection system suitable for intelligent electric energy meter and power information acquisition terminal |
| CN109143145B (en) * | 2018-09-27 | 2022-05-27 | 国网山东省电力公司营销服务中心(计量中心) | Alternating current voltage withstand detection system suitable for intelligent electric energy meter and electricity consumption information acquisition terminal |
| CN109739147A (en) * | 2019-01-22 | 2019-05-10 | 广东美的暖通设备有限公司 | Control equipment, control method and computer readable storage medium |
| CN112595943A (en) * | 2020-12-30 | 2021-04-02 | 深圳市航天泰瑞捷电子有限公司 | Portable semi-automatic voltage withstanding test method, device and system |
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| CN107064853B (en) | 2020-05-15 |
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