CN103267888A - 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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- CN103267888A CN103267888A CN2013101380963A CN201310138096A CN103267888A CN 103267888 A CN103267888 A CN 103267888A CN 2013101380963 A CN2013101380963 A CN 2013101380963A CN 201310138096 A CN201310138096 A CN 201310138096A CN 103267888 A CN103267888 A CN 103267888A
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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 multi-functional secondary voltage electric current composite measurement analytical equipment.
Background technology
Protection in the electric system at present, measurement mechanism all need to carry out nuclear phase and load test before dropping into commencement of commercial operation; be exactly whether correct to calculate with actual load check protection, measurement mechanism to the sampling of primary equipment current/voltage, protection difference current; whether the protection decision logic is normal, detects the correctness of the phase sequence of different electrical power and different voltage transformer (VT).The detection test instrument of current utilization mainly is single-phase or the three-phase clamp on amperemeter, and voltage table after secondary current and voltage measurement finished, needs the data on the his-and-hers watches to carry out analysis-by-synthesis and comparison, could determine final testing result.There are problems in such test method when using at the scene: one, because separately measurement of electric current and voltage, various data need repeatedly to measure, the simultaneity of data can not guarantee, often the size of three-phase current and angle are offset constantly with the instability of load, influence the final judgement of test findings; Two, electric current and voltage adopts distinct device to measure, and precision and the error of distinct device are not quite similar, and therefore has the problem that influences test findings; Three, because measuring equipment is more, need many people to assist work simultaneously, often the workplace is narrower and small, causes the situation of work inconvenience also more, influences efficient and the speed of experiment work.
Summary of the invention
The invention provides a kind of multi-functional secondary voltage electric current composite measurement analytical equipment, it not only reduces because of the precision of different sample devicess and the problem of error Different Effects test findings greatly, solve a problem that test needs many people to cooperate simultaneously, improved field experiment staff's work efficiency.
The present invention has adopted following technical scheme: a kind of multi-functional secondary voltage electric current composite measurement analytical equipment; it comprises AC sampling module assembly and digital processing image display module; described digital processing image display module comprises the DPS data handling system; cpu central processing unit; outside man-machine conversation module and color monitor; the setting end of cpu central processing unit is connected with the man-machine conversation module; the AC sampling module assembly is connected with the signal input part of cpu central processing unit by the DSP data handling system; the signal output part of cpu central processing unit is connected with color monitor successively; the man-machine conversation module is used for cpu central processing unit is set the poor flowmeter calculation of realization multichannel electric current and the pressure reduction calculating of voltage; the collection of AC sampling module assembly flows into the secondary current of protection measure and control device and the vector value of secondary voltage; and the vector value of gathering handled by the DSP data handling system obtain the curtage of ac; get the curtage of ac of wherein one tunnel sampling as phase reference; calculate the relative angle of the curtage of ac of all collections in real time by cpu central processing unit, according to the cpu central processing unit of setting to the multichannel electric current differ from that flowmeter is calculated and voltage carry out that pressure reduction calculates and result of calculation be transported in the color monitor graphically show.
Described AC sampling module assembly comprises the external expanded type sampling module of voltage sample module and some roads on the current sample module on some roads, some roads.Described AC sampling module assembly comprises three tunnel separate type current sample modules, three tunnel separate type voltage sample modules and the external expanded type sampling module of two-way.Described AC sampling module assembly comprises six tunnel separate type current sample modules, six tunnel separate type voltage sample modules and the external expanded type sampling module of two-way.Described AC sampling module assembly comprises nine tunnel separate type current sample modules, nine tunnel separate type voltage sample modules and the external expanded type sampling module of two-way.Described external expanded type sampling module and cpu central processing unit input end adopt wireless or wired mode to carry out communication to be connected.
The present invention has following beneficial effect: after having adopted above technical scheme; the present invention has realized concentrated collection and the analysis of multichannel current and voltage quantities by digital sample and treatment technology; its realization; not only can satisfy the load test of existing protection measure and control device; the repertoire of secondary device and loop correlation test when new equipment starts; and most important energy solves the problem that a plurality of analog quantitys are sampled simultaneously and compared; add by graphical realization result feedback; for work on the spot provides efficient; convenient; the test result of safety; adopted simultaneously that sampling module is separable expands design; overall weight also will alleviate; be easy to carry more, be convenient to function expansion.Aspect electric power secondary current voltage measurement testing equipment, the revolutionary character that it will become existing survey instrument changes, reduce because of the precision of different sample devicess and the problem of error Different Effects test findings greatly, solved a problem that test needs many people to cooperate simultaneously, improve field experiment staff's work efficiency, all possess actual extensive promotional value and meaning in power industry.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
Embodiment one; in Fig. 1; the invention provides a kind of multi-functional secondary voltage electric current composite measurement analytical equipment; it is characterized in that it comprises AC sampling module assembly and digital processing image display module; described digital processing image display module comprises the DPS data handling system; cpu central processing unit; outside man-machine conversation module and color monitor; the setting end of cpu central processing unit is connected with the man-machine conversation module; the AC sampling module assembly is connected with the signal input part of cpu central processing unit by the DSP data handling system; the AC sampling module assembly comprises three tunnel separate type current sample modules; the external expanded type sampling module of three tunnel separate type voltage sample modules and two-way; external expanded type sampling module and cpu central processing unit input end adopt wireless or wired mode to carry out communication to be connected; the signal output part of cpu central processing unit is connected with color monitor successively; the man-machine conversation module is used for cpu central processing unit is set the poor flowmeter calculation of realization multichannel electric current and the pressure reduction calculating of voltage; the collection of AC sampling module assembly flows into the secondary current of protection measure and control device and the vector value of secondary voltage; and the vector value of gathering handled by the DSP data handling system obtain the curtage of ac; get the curtage of ac of wherein one tunnel sampling as phase reference; calculated the relative angle of the curtage of ac of all collections in real time by cpu central processing unit; according to the cpu central processing unit of setting to the multichannel electric current differ from that flowmeter is calculated and voltage carry out that pressure reduction calculates and result of calculation be transported in the color monitor graphically show; needs according to pilot project; can be by programming and the setting to each drive test amount object; compare calculating with the protective device sampled value, directly show test findings.
Embodiment two; the invention provides a kind of multi-functional secondary voltage electric current composite measurement analytical equipment; it is characterized in that it comprises AC sampling module assembly and digital processing image display module; described digital processing image display module comprises the DPS data handling system; cpu central processing unit; outside man-machine conversation module and color monitor; the setting end of cpu central processing unit is connected with the man-machine conversation module; the AC sampling module assembly is connected with the signal input part of cpu central processing unit by the DSP data handling system; the AC sampling module assembly comprises six tunnel separate type current sample modules; the external expanded type sampling module of six tunnel separate type voltage sample modules and two-way; external expanded type sampling module and cpu central processing unit input end adopt wireless or wired mode to carry out communication to be connected; the signal output part of cpu central processing unit is connected with color monitor successively; the man-machine conversation module is used for cpu central processing unit is set the poor flowmeter calculation of realization multichannel electric current and the pressure reduction calculating of voltage; the collection of AC sampling module assembly flows into the secondary current of protection measure and control device and the vector value of secondary voltage; and the vector value of gathering handled by the DSP data handling system obtain the curtage of ac; get the curtage of ac of wherein one tunnel sampling as phase reference; calculated the relative angle of the curtage of ac of all collections in real time by cpu central processing unit; according to the cpu central processing unit of setting to the multichannel electric current differ from that flowmeter is calculated and voltage carry out that pressure reduction calculates and result of calculation be transported in the color monitor graphically show; needs according to pilot project; can be by programming and the setting to each drive test amount object; compare calculating with the protective device sampled value, directly show test findings.
Embodiment three; the invention provides a kind of multi-functional secondary voltage electric current composite measurement analytical equipment; it is characterized in that it comprises AC sampling module assembly and digital processing image display module; described digital processing image display module comprises the DPS data handling system; cpu central processing unit; outside man-machine conversation module and color monitor; the setting end of cpu central processing unit is connected with the man-machine conversation module; the AC sampling module assembly is connected with the signal input part of cpu central processing unit by the DSP data handling system; the AC sampling module assembly comprises nine tunnel separate type current sample modules; the external expanded type sampling module of nine tunnel separate type voltage sample modules and two-way; external expanded type sampling module and cpu central processing unit input end adopt wireless or wired mode to carry out communication to be connected; the signal output part of cpu central processing unit is connected with color monitor successively; the man-machine conversation module is used for cpu central processing unit is set the poor flowmeter calculation of realization multichannel electric current and the pressure reduction calculating of voltage; the collection of AC sampling module assembly flows into the secondary current of protection measure and control device and the vector value of secondary voltage; and the vector value of gathering handled by the DSP data handling system obtain the curtage of ac; get the curtage of ac of wherein one tunnel sampling as phase reference; calculated the relative angle of the curtage of ac of all collections in real time by cpu central processing unit; according to the cpu central processing unit of setting to the multichannel electric current differ from that flowmeter is calculated and voltage carry out that pressure reduction calculates and result of calculation be transported in the color monitor graphically show; needs according to pilot project; can be by programming and the setting to each drive test amount object; compare calculating with the protective device sampled value, directly show test findings.
Claims (6)
1. multi-functional secondary voltage electric current composite measurement analytical equipment; it is characterized in that it comprises AC sampling module assembly and digital processing image display module; described digital processing image display module comprises the DPS data handling system; cpu central processing unit; outside man-machine conversation module and color monitor; the setting end of cpu central processing unit is connected with the man-machine conversation module; the AC sampling module assembly is connected with the signal input part of cpu central processing unit by the DSP data handling system; the signal output part of cpu central processing unit is connected with color monitor successively; the man-machine conversation module is used for cpu central processing unit is set the poor flowmeter calculation of realization multichannel electric current and the pressure reduction calculating of voltage; the collection of AC sampling module assembly flows into the secondary current of protection measure and control device and the vector value of secondary voltage; and the vector value of gathering handled by the DSP data handling system obtain the curtage of ac; get the curtage of ac of wherein one tunnel sampling as phase reference; calculate the relative angle of the curtage of ac of all collections in real time by cpu central processing unit, according to the cpu central processing unit of setting to the multichannel electric current differ from that flowmeter is calculated and voltage carry out that pressure reduction calculates and result of calculation be transported in the color monitor graphically show.
2. multi-functional secondary voltage electric current composite measurement analytical equipment according to claim 1 is characterized in that described AC sampling module assembly comprises the external expanded type sampling module of voltage sample module and some roads on the current sample module on some roads, some roads.
3. multi-functional secondary voltage electric current composite measurement analytical equipment according to claim 2 is characterized in that described AC sampling module assembly comprises three tunnel separate type current sample modules, three tunnel separate type voltage sample modules and the external expanded type sampling module of two-way.
4. multi-functional secondary voltage electric current composite measurement analytical equipment according to claim 2 is characterized in that described AC sampling module assembly comprises six tunnel separate type current sample modules, six tunnel separate type voltage sample modules and the external expanded type sampling module of two-way.
5. multi-functional secondary voltage electric current composite measurement analytical equipment according to claim 2 is characterized in that described AC sampling module assembly comprises nine tunnel separate type current sample modules, nine tunnel separate type voltage sample modules and the external expanded type sampling module of two-way.
6. according to any described multi-functional secondary voltage electric current composite measurement analytical equipment among the claim 2-5, it is characterized in that described external expanded type sampling module and cpu central processing unit input end adopt wireless or wired mode to carry out communication and be connected.
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| WO2001079872A1 (en) * | 2000-04-13 | 2001-10-25 | Genscape, Inc. | Apparatus and method for the measurement and monitoring of electrical power generation and transmission |
| 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 |
-
2013
- 2013-04-21 CN CN201310138096.3A patent/CN103267888B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2001079872A1 (en) * | 2000-04-13 | 2001-10-25 | Genscape, Inc. | Apparatus and method for the measurement and monitoring of electrical power generation and transmission |
| 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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