CN201319065Y - Multifunctional testing device - Google Patents
Multifunctional testing device Download PDFInfo
- Publication number
- CN201319065Y CN201319065Y CNU2008201776768U CN200820177676U CN201319065Y CN 201319065 Y CN201319065 Y CN 201319065Y CN U2008201776768 U CNU2008201776768 U CN U2008201776768U CN 200820177676 U CN200820177676 U CN 200820177676U CN 201319065 Y CN201319065 Y CN 201319065Y
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- analogue unit
- electric energy
- energy meter
- standard electric
- voltage
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Abstract
The utility model discloses a multifunctional testing device, which mainly consists of a computer hardware and software system and a programmable controlled voltage source, a programmable controlled current source, a CT open-circuit and short-circuit analogue unit, a wrong wiring analogue unit, a standard electric energy meter and an error calculator which are internally integrated in the device; wherein the computer hardware and software system controls all the components to output voltage and current value or complete corresponding switching as required; the programmable controlled voltage source is connected with the wrong wiring analogue unit; the programmable controlled current source is connected with the CT open-circuit and short-circuit analogue unit which is connected with the wrong wiring analogue unit; the wrong wiring analogue unit is connected with the standard electric energy meter and a detect object; and the standard electric energy meter and the detect object are connected with the error calculator. Under the control of the computer system, the device can detect and test the metering performance of the test object, and also can test the functions of voltage loss, current loss, wrong wiring judgment, CT open-circuit and short-circuit judgment and the like of the test object.
Description
Technical field
The utility model relates to a kind of single-phase, three-phase multifunctional proving installation, especially can be to the performance of electric energy meter, load management terminal, curstomer`s site office terminal, the unusual instrument for measuring and recording of measuring apparatus and the device that function is tested.
Background technology
At present, metering performance to equipment such as electric energy meter, load management terminal, curstomer`s site office terminal, the unusual instrument for measuring and recording of measuring apparatus adopts electric energy meter calibrating apparatus or other electric current and voltage power calibrating installation etc. to carry out, then adopt manual mode to carry out to functional tests such as decompression, defluidization, false wiring judgement, CT short circuit open circuits, have in addition test.
The utility model content
In order to solve the performance and the functional test problem of equipment such as electric energy meter, load management terminal, curstomer`s site office terminal, the unusual instrument for measuring and recording of measuring apparatus, the utility model provides a kind of novel single-phase, three-phase multifunctional proving installation, this device can not only be examined and determine, test the metering performance of the said equipment, can also test automatically functions such as decompression, defluidization, false wiring judgement, the judgements of CT short circuit open circuit.
The technical solution adopted in the utility model is:
A kind of multipurpose test system, comprise computer hardware and software systems and the inner integrated program-controlled voltage source of device, programmable current source, CT open circuit short circuit analogue unit, the false wiring analogue unit, standard electric energy meter, Error Calculator, described computer hardware and software systems are controlled all parts output voltage as requested, current value or carry out corresponding switch and switch, program-controlled voltage source links to each other with the false wiring analogue unit, programmable current source links to each other with CT open circuit short circuit analogue unit, CT open circuit short circuit analogue unit links to each other with the false wiring analogue unit, the false wiring analogue unit links to each other with standard electric energy meter and tested product, and standard electric energy meter and tested product link to each other with Error Calculator.
Described CT open circuit short circuit analogue unit disposes many groups CT in kind.
Described standard electric energy meter inserts identical voltage, current input signal with tested product.
The electrical energy pulse signal of described standard electric energy meter output high frequency provides voltage, electric current, frequency, phase measurement data by communication port simultaneously.
Described computer hardware and software systems are gathered voltage, electric current, frequency, the phase data that standard electric energy meter and tested product are measured respectively by communication port, and calculate the measuring error of tested product.
Described communication port is RS-232 or RS-485 communication port.
The utility model can carry out functional tests such as decompression, defluidization, false wiring judgement, CT short circuit open circuit in the tested resistance of test, performance and functional test are carried out in same device, and simple in structure, stable performance, measurement are accurate.
Description of drawings
Fig. 1 is the new structure principle chart of this practicality.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Description of reference numerals is as follows:
1---computer hardware and software systems 2---program-controlled voltage source
3---programmable current source 4---CT open circuit short circuit analogue unit
5---false wiring analogue unit 6---standard electric energy meter
7---tested product 8---Error Calculator
As shown in Figure 1, this computer hardware and software systems 1 all parts of control are output voltage, current value or carry out corresponding switch and switch as requested, program-controlled voltage source 2 links to each other with false wiring analogue unit 5, programmable current source 3 links to each other with CT open circuit short circuit analogue unit 4, CT open circuit short circuit analogue unit 4 links to each other with false wiring analogue unit 5, false wiring analogue unit 5 links to each other with standard electric energy meter 6 and tested product 7, standard electric energy meter 6 and tested product 7 link to each other with Error Calculator 8, above-mentioned each functional unit adopts current techique to realize, just repeats no more here.
Its principle of work is as follows: the order that program-controlled voltage source can send according to computer system changes output voltage amplitude, frequency and phase place, and also exportable multiple harmonic wave also can change amplitude, frequency and the phase place of output harmonic wave voltage; The order that programmable current source also sends according to computer system changes amplitude, frequency and the phase place of output current, and also exportable multiple harmonic wave also can change amplitude, frequency and the phase place of output harmonic wave electric current; CT open circuit short circuit analogue unit disposes many group CT in kind (current transformer), and to organize CT available more, comprises the CT of different types, specification, can select three or two CT according to the test specimen situation for every group, to form star or triangle or V-V connection type; Under the control of computer system, realize once open circuit, short circuit and CT second open circuit, short circuit of CT by change-over switches such as relays; The false wiring analogue unit can be under the control of computer system, can simulate common false wiring form by change-over switches such as relays, comprise voltage misphase, electric current misphase, table tail current turnover reversal connection, PT secondary break, PT secondary error-polarity connection, CT second short circuit, CT secondary error-polarity connection, CT second open circuit etc., and can make up setting; Standard electric energy meter inserts identical voltage, current input signal with tested electric energy meter; The electrical energy pulse signal of standard electric energy meter output high frequency can provide measurement data such as voltage, electric current, frequency, phase place by RS-232 or RS-485 communication port simultaneously; The electric energy respective pulses signal input of Error Calculator energy acceptance criteria electric energy meter and test specimen output can be carried out error ratio, calculates the electric energy measurement error of test specimen; Computer system also can be gathered data such as voltage that standard electric energy meter and tested product measure respectively, electric current, frequency, phase place by RS-232, RS-485 or other communication port, calculate the measuring error of tested product.Under the control of computer system, exportable voltage, current signal, and can simulate CT open circuit and short circuit, simulate various false wirings, various measurement results by standard electric energy meter and tested product compare, and can obtain measuring error, and tested product can be judged CT open circuit and short circuit, false wiring simultaneously, and compare with the setting form, judge whether tested product function is normal.
The utility model is not limited to above-mentioned preferred forms, and anyone can draw other various forms of products under enlightenment of the present invention.Though but on its shape or structure, do any variation, every identical with the utility model or akin technical scheme is all within its protection domain.
Claims (6)
1, a kind of multipurpose test system, it is characterized in that, comprise computer hardware and software systems and the inner integrated program-controlled voltage source of device, programmable current source, CT open circuit short circuit analogue unit, the false wiring analogue unit, standard electric energy meter, Error Calculator, described computer hardware and software systems are controlled all parts output voltage as requested, current value or carry out corresponding switch and switch, program-controlled voltage source links to each other with the false wiring analogue unit, programmable current source links to each other with CT open circuit short circuit analogue unit, CT open circuit short circuit analogue unit links to each other with the false wiring analogue unit, the false wiring analogue unit links to each other with standard electric energy meter and tested product, and standard electric energy meter and tested product link to each other with Error Calculator.
2, multipurpose test system according to claim 1 is characterized in that, described CT open circuit short circuit analogue unit disposes many groups CT in kind.
3, multipurpose test system according to claim 1 is characterized in that, described standard electric energy meter inserts identical voltage, current input signal with tested product.
4, multipurpose test system according to claim 1 is characterized in that, the electrical energy pulse signal of described standard electric energy meter output high frequency provides voltage, electric current, frequency, phase measurement data by communication port simultaneously.
5, multipurpose test system according to claim 1, it is characterized in that, described computer hardware and software systems are gathered voltage, electric current, frequency, the phase data that standard electric energy meter and tested product are measured respectively by communication port, and calculate the measuring error of tested product.
According to claim 4 or 5 described multipurpose test systems, it is characterized in that 6, described communication port is RS-232 or RS-485 communication port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201776768U CN201319065Y (en) | 2008-11-25 | 2008-11-25 | Multifunctional testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201776768U CN201319065Y (en) | 2008-11-25 | 2008-11-25 | Multifunctional testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201319065Y true CN201319065Y (en) | 2009-09-30 |
Family
ID=41197829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201776768U Expired - Lifetime CN201319065Y (en) | 2008-11-25 | 2008-11-25 | Multifunctional testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201319065Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162841A (en) * | 2010-02-23 | 2011-08-24 | 华北电力科学研究院有限责任公司 | Method and system for detecting electric energy meter |
| CN109164326A (en) * | 2018-10-11 | 2019-01-08 | 国网上海市电力公司 | A kind of area's line loss exception defect elimination method |
-
2008
- 2008-11-25 CN CNU2008201776768U patent/CN201319065Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162841A (en) * | 2010-02-23 | 2011-08-24 | 华北电力科学研究院有限责任公司 | Method and system for detecting electric energy meter |
| CN102162841B (en) * | 2010-02-23 | 2013-09-18 | 华北电力科学研究院有限责任公司 | Method and system for detecting electric energy meter |
| CN109164326A (en) * | 2018-10-11 | 2019-01-08 | 国网上海市电力公司 | A kind of area's line loss exception defect elimination method |
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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: 20130605 |
|
| 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 OF CHONGQING ELE Free format text: FORMER NAME: CHONGQING ELECTRIC POWER RESEARCH INSTITUTE |
|
| CP03 | Change of name, title or address |
Address after: 401123 No. 80, Mount Huangshan Avenue, Yubei District, Chongqing Patentee after: CHONGQING ELECTRIC POWER Research Institute Address before: Daxigou Renmin Road 400015 Chongqing city Yuzhong District No. 75 Patentee before: Chongqing Electric Power Research Institute |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130605 Address after: 401123 No. 80, Mount Huangshan Avenue, Yubei District, Chongqing Patentee after: CHONGQING ELECTRIC POWER Research Institute Patentee after: State Grid Corporation of China Address before: 401123 No. 80, Mount Huangshan Avenue, Yubei District, Chongqing Patentee before: CHONGQING ELECTRIC POWER Research Institute |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090930 |
|
| CX01 | Expiry of patent term |