CN103267888B - Multifunctional secondary voltage and current comprehensive measurement and analysis device - Google Patents
Multifunctional secondary voltage and current comprehensive measurement and analysis device Download PDFInfo
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- CN103267888B CN103267888B CN201310138096.3A CN201310138096A CN103267888B CN 103267888 B CN103267888 B CN 103267888B CN 201310138096 A CN201310138096 A CN 201310138096A CN 103267888 B CN103267888 B CN 103267888B
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- 238000005259 measurement Methods 0.000 title claims abstract description 18
- 238000004458 analytical method Methods 0.000 title abstract description 6
- 238000005070 sampling Methods 0.000 claims abstract description 69
- 238000012545 processing Methods 0.000 claims abstract description 52
- 238000004364 calculation method Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 17
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
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- 238000000819 phase cycle Methods 0.000 description 1
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Abstract
The invention provides a multifunctional secondary voltage and current comprehensive measurement and analysis device. A setting end of a CPU (Central Processing Unit) is connected with a man-machine conversation module; an alternating-current sampling module assembly is connected with a signal input end of the CPU through a DSP (Digital Signal Processor) data processing system; and a signal output end of the CPU is sequentially connected with a color display. According to the multifunctional secondary voltage and current comprehensive measurement and analysis device disclosed by the invention, the problem that a test result is influenced by different precisions and errors of different sampling equipment is greatly reduced, the problem that one test needs many people to cooperate simultaneously is solved, and the working efficiency of field experimental workers is improved, so that the multifunctional secondary voltage and current comprehensive measurement and analysis device has actual wide popularization values and meanings to electric power industries.
Description
Technical field
The present invention relates to a kind of Multifunctional secondary voltage current comprehensive measurement analytical equipment.
Background technology
In power system at present, protection, measurement apparatus are required for carrying out nuclear phase and load test before putting into commencement of commercial operation; it is exactly whether correct to the sampling calculating of primary equipment current/voltage, protection difference current with actual load check protection, measurement apparatus; whether protection decision logic is normal, the correctness of the phase sequence of detection different electrical power and different voltage transformer.The current detection test instrument using is mainly single-phase or three-phase clamp on amperemeter, voltmeter, after the completion of secondary current and voltage are measured, needs to carry out comprehensive analysis and comparison to the data on table, just can determine that final testing result.Such test method at the scene with when there are problems：First, because voltage x current separately measures, various data need repeatedly to measure, property while data it cannot be guaranteed that, often the size of three-phase current and angle shifted with the unstability moment of load, the final judgement of impact result of the test；2nd, voltage x current is measured using distinct device, and the precision of distinct device and error are not quite similar, and therefore there is a problem of affecting result of the test；3rd, because measuring apparatus are more, need many people to assist work, often working space ratio is narrow simultaneously, cause the situation of work inconvenience also more, affect efficiency and the speed of experiment work.
Content of the invention
The invention provides a kind of Multifunctional secondary voltage current comprehensive measurement analytical equipment, it not only greatly reduces because of the precision of different sample devicess and the problem of error Different Effects result of the test, solve the problems, such as that a test needs many people to cooperate simultaneously, improve the work efficiency of field experimentation staff.
Present invention employs technical scheme below：A kind of Multifunctional secondary voltage current comprehensive measurement analytical equipment，It includes AC sampling module assembly and digital processing image display module，Described digital processing image display module includes DPS data handling system、Cpu central processing unit、Outside human computer conversation's module and color display，The setting end of cpu central processing unit is connected with human computer conversation's module，AC sampling module assembly is connected with the signal input part of cpu central processing unit by DSP data handling system，The signal output part of cpu central processing unit is connected with color display successively，The pressure reduction that human computer conversation's module is used for cpu central processing unit is set the differential current computing and voltage realizing multichannel electric current calculates，The collection of AC sampling module assembly flows into the secondary current of protection supervisory equipment and the vector value of secondary voltage，And the vector value of collection is carried out process by DSP data handling system obtain curtage of ac，The curtage of ac taking wherein one tunnel sampling is as phase reference，Calculate the relative angle of the curtage of ac of all collections by cpu central processing unit in real time，Carrying out pressure reduction calculating and result of calculation is transported in color display being patterned display of differential current computing and voltage is carried out to multichannel electric current according to the cpu central processing unit setting.
If if if described AC sampling module assembly includes the voltage sample module on the current sample module main line and main line external expanded type sampling module on main line.Described AC sampling module assembly includes three tunnel separate type electric current sampling modules, three tunnel separate type voltage sampling modules and two-way external expanded type sampling module.Described AC sampling module assembly includes six tunnel separate type electric current sampling modules, six tunnel separate type voltage sampling modules and two-way external expanded type sampling module.Described AC sampling module assembly includes nine tunnel separate type electric current sampling modules, nine tunnel separate type voltage sampling modules and two-way external expanded type sampling module.Described external expanded type sampling module and cpu central processing unit input carry out communication by the way of wirelessly or non-wirelessly and are connected.
The invention has the advantages that：After employing above technical scheme, the present invention achieves concentrated collection and the analysis of multichannel current and voltage quantities by digital sample and treatment technology, its realization, existing protection supervisory equipment load test can not only be met, the repertoire of secondary device and loop correlation test when new equipment starts, and most important can solve the problems, such as multiple analog quantitys are sampled simultaneously and contrast, along with by graphically realize result feedback, there is provided efficiently for work on the spot, convenient, the test result of safety, employ the separable expansible design of sampling module simultaneously, overall weight also will mitigate, easily facilitate and carry, it is easy to the extension of function.In terms of Power Secondary current-voltage measurement testing equipment, the revolution becoming to existing survey tool is sexually revised by it, greatly reduce because of the precision of different sample devicess and the problem of error Different Effects result of the test, solve the problems, such as that a test needs many people to cooperate simultaneously, improve field experimentation staff work efficiency, power industry all possess reality be widely popularized value and significance.
Brief description
Fig. 1 is the structural representation of the present invention.
Specific embodiment
Embodiment one，In FIG，The invention provides a kind of Multifunctional secondary voltage current comprehensive measurement analytical equipment，It is characterized in that it includes AC sampling module assembly and digital processing image display module，Described digital processing image display module includes DPS data handling system、Cpu central processing unit、Outside human computer conversation's module and color display，The setting end of cpu central processing unit is connected with human computer conversation's module，AC sampling module assembly is connected with the signal input part of cpu central processing unit by DSP data handling system，AC sampling module assembly includes three tunnel separate type electric current sampling modules、Three tunnel separate type voltage sampling modules and two-way external expanded type sampling module，External expanded type sampling module and cpu central processing unit input carry out communication by the way of wirelessly or non-wirelessly and are connected，The signal output part of cpu central processing unit is connected with color display successively，The pressure reduction that human computer conversation's module is used for cpu central processing unit is set the differential current computing and voltage realizing multichannel electric current calculates，The collection of AC sampling module assembly flows into the secondary current of protection supervisory equipment and the vector value of secondary voltage，And the vector value of collection is carried out process by DSP data handling system obtain curtage of ac，The curtage of ac taking wherein one tunnel sampling is as phase reference，Calculate the relative angle of the curtage of ac of all collections by cpu central processing unit in real time，Carrying out pressure reduction calculating and result of calculation is transported in color display being patterned display of differential current computing and voltage is carried out to multichannel electric current according to the cpu central processing unit setting，Needs according to pilot project，Can be by the programming of each road measurement object and setting，Carry out comparing calculation with protection device sampled value，Directly display result of the test.
Embodiment two，The invention provides a kind of Multifunctional secondary voltage current comprehensive measurement analytical equipment，It is characterized in that it includes AC sampling module assembly and digital processing image display module，Described digital processing image display module includes DPS data handling system、Cpu central processing unit、Outside human computer conversation's module and color display，The setting end of cpu central processing unit is connected with human computer conversation's module，AC sampling module assembly is connected with the signal input part of cpu central processing unit by DSP data handling system，AC sampling module assembly includes six tunnel separate type electric current sampling modules、Six tunnel separate type voltage sampling modules and two-way external expanded type sampling module，External expanded type sampling module and cpu central processing unit input carry out communication by the way of wirelessly or non-wirelessly and are connected，The signal output part of cpu central processing unit is connected with color display successively，The pressure reduction that human computer conversation's module is used for cpu central processing unit is set the differential current computing and voltage realizing multichannel electric current calculates，The collection of AC sampling module assembly flows into the secondary current of protection supervisory equipment and the vector value of secondary voltage，And the vector value of collection is carried out process by DSP data handling system obtain curtage of ac，The curtage of ac taking wherein one tunnel sampling is as phase reference，Calculate the relative angle of the curtage of ac of all collections by cpu central processing unit in real time，Carrying out pressure reduction calculating and result of calculation is transported in color display being patterned display of differential current computing and voltage is carried out to multichannel electric current according to the cpu central processing unit setting，Needs according to pilot project，Can be by the programming of each road measurement object and setting，Carry out comparing calculation with protection device sampled value，Directly display result of the test.
Embodiment three，The invention provides a kind of Multifunctional secondary voltage current comprehensive measurement analytical equipment，It is characterized in that it includes AC sampling module assembly and digital processing image display module，Described digital processing image display module includes DPS data handling system、Cpu central processing unit、Outside human computer conversation's module and color display，The setting end of cpu central processing unit is connected with human computer conversation's module，AC sampling module assembly is connected with the signal input part of cpu central processing unit by DSP data handling system，AC sampling module assembly includes nine tunnel separate type electric current sampling modules、Nine tunnel separate type voltage sampling modules and two-way external expanded type sampling module，External expanded type sampling module and cpu central processing unit input carry out communication by the way of wirelessly or non-wirelessly and are connected，The signal output part of cpu central processing unit is connected with color display successively，The pressure reduction that human computer conversation's module is used for cpu central processing unit is set the differential current computing and voltage realizing multichannel electric current calculates，The collection of AC sampling module assembly flows into the secondary current of protection supervisory equipment and the vector value of secondary voltage，And the vector value of collection is carried out process by DSP data handling system obtain curtage of ac，The curtage of ac taking wherein one tunnel sampling is as phase reference，Calculate the relative angle of the curtage of ac of all collections by cpu central processing unit in real time，Carrying out pressure reduction calculating and result of calculation is transported in color display being patterned display of differential current computing and voltage is carried out to multichannel electric current according to the cpu central processing unit setting，Needs according to pilot project，Can be by the programming of each road measurement object and setting，Carry out comparing calculation with protection device sampled value，Directly display result of the test.
Claims (1)
1. a kind of Multifunctional secondary voltage current comprehensive measurement analytical equipment，It is characterized in that it includes AC sampling module assembly and digital processing image display module，Described digital processing image display module includes DSP data handling system、Cpu central processing unit、Outside human computer conversation's module and color display，The setting end of cpu central processing unit is connected with human computer conversation's module，AC sampling module assembly is connected with the signal input part of cpu central processing unit by DSP data handling system，The signal output part of cpu central processing unit is connected with color display，The pressure reduction that human computer conversation's module is used for cpu central processing unit is set the differential current computing and voltage realizing multichannel electric current calculates，The collection of AC sampling module assembly flows into the secondary current of protection supervisory equipment and the vector value of secondary voltage，And the vector value of collection is carried out process by DSP data handling system obtain curtage of ac，The curtage of ac taking wherein one tunnel sampling is as phase reference，Calculate the relative angle of the curtage of ac of all collections by cpu central processing unit in real time，Cpu central processing unit according to setting carries out differential current computing to Multi-path electricity stream and voltage carries out pressure reduction calculating and result of calculation is transported in color display is patterned display，If described AC sampling module assembly includes the current sample module on main line、If if the voltage sample module on main line and main line external expanded type sampling module，Described AC sampling module assembly includes three tunnel separate type electric current sampling modules、Three tunnel separate type voltage sampling modules and two-way external expanded type sampling module，Or AC sampling module assembly includes six tunnel separate type electric current sampling modules、Six tunnel separate type voltage sampling modules and two-way external expanded type sampling module，Or AC sampling module assembly includes nine tunnel separate type electric current sampling modules、Nine tunnel separate type voltage sampling modules and two-way external expanded type sampling module，Described external expanded type sampling module and cpu central processing unit input carry out communication by the way of wirelessly or non-wirelessly and are connected.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101587143A (en) * | 2009-06-25 | 2009-11-25 | 福建敏讯电气科技有限公司 | CT charge on-line detection device and detection method |
| CN201408258Y (en) * | 2009-05-14 | 2010-02-17 | 山西省机电设计研究院 | Field detecting device of current transformer used for protection |
| CN101893662A (en) * | 2010-07-23 | 2010-11-24 | 江苏省电力公司常州供电公司 | Nuclear phase method for digital transformer substation |
| CN201797372U (en) * | 2010-07-23 | 2011-04-13 | 江苏省电力公司常州供电公司 | Nuclear phase system for intelligent digital transformer substation |
| CN102749549A (en) * | 2012-06-21 | 2012-10-24 | 云南电力试验研究院（集团）有限公司电力研究院 | Intelligent checking system for substation alternating current voltage secondary circuit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2406444C (en) * | 2000-04-13 | 2010-11-09 | Genscape, Inc. | Apparatus and method for the measurement and monitoring of electrical power generation and transmission |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201408258Y (en) * | 2009-05-14 | 2010-02-17 | 山西省机电设计研究院 | Field detecting device of current transformer used for protection |
| CN101587143A (en) * | 2009-06-25 | 2009-11-25 | 福建敏讯电气科技有限公司 | CT charge on-line detection device and detection method |
| CN101893662A (en) * | 2010-07-23 | 2010-11-24 | 江苏省电力公司常州供电公司 | Nuclear phase method for digital transformer substation |
| CN201797372U (en) * | 2010-07-23 | 2011-04-13 | 江苏省电力公司常州供电公司 | Nuclear phase system for intelligent digital transformer substation |
| CN102749549A (en) * | 2012-06-21 | 2012-10-24 | 云南电力试验研究院（集团）有限公司电力研究院 | Intelligent checking system for substation alternating current voltage secondary circuit |
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