KR910009904B1 - 전자식 적산무효 전력계 - Google Patents
전자식 적산무효 전력계 Download PDFInfo
- Publication number
- KR910009904B1 KR910009904B1 KR1019860000497A KR860000497A KR910009904B1 KR 910009904 B1 KR910009904 B1 KR 910009904B1 KR 1019860000497 A KR1019860000497 A KR 1019860000497A KR 860000497 A KR860000497 A KR 860000497A KR 910009904 B1 KR910009904 B1 KR 910009904B1
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- voltage
- circuit
- microprocessor
- voltage signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000005070 sampling Methods 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 4
- 230000010354 integration Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000006386 memory function Effects 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/30—Dynamo-electric motor meters
- G01R11/32—Watt-hour meters
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
Description
Claims (1)
- 부하전압에 비레하고 서로 180°의 위상차를 갖는 두가지 신호의 전압신호( v)를 발생하는 분압회로(20)와; 부하전류에 비례하는 전압신호( i)를 발생하는 전류-전압 변화회로(21)와; 상기 두 전압신호( v, i)를 각각 샘플홀딩하는 샘플링 및 홀딩회로(23,24)와; 상기 그 샘플링 및 홀딩회로(23,24)에서 샘플링된 전압신호( v, i)중 어느 하나를 선택하는 멀티플렉서(25)와; 상기 멀티플렉서(25)에서 출력되는 아날로그 신호를 디지틀 신호로 변환하는 A/D변환기(26)와; 상기 분압회로(20)로부터 발생된 전압신호( v)를 입력으로 하여 그의 일측단자에 접속된 클럭펄스 발생수단으로부터 입력되는 펄스신호에 따라 전압신호( v)의 위상 지연신호를 검출하는 지연시간 검출회로(27)와; 상기 클럭펄스 발생수단의 출력펄스에 의해 지연시간 검출회로(27)로부터 입력되는 위상지연신호에 상응하여 해당단자에 지령신호를 발생하고, 그 지령신호에 따라 산출된 값에 의해 소비전력을 적산하는 마이크로 프로세서(29)와; 상기 적산된 소비전력을 나타내는 표시수단(30)으로 이루어지고, 상기 마이크로 프로세서의 지령신호에 의거하여 동시에 상기 샘플링된 전압신호( v, i)를 발생하고, 상기 샘플링된 전압신호( v, i)중 어느 하나를 선택하며, 상기 선택된 전압신호를 디지틀 신호로 변환하는 것을 특징으로 하는 전자식 적산 무효전력계.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019860000497A KR910009904B1 (ko) | 1986-01-27 | 1986-01-27 | 전자식 적산무효 전력계 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019860000497A KR910009904B1 (ko) | 1986-01-27 | 1986-01-27 | 전자식 적산무효 전력계 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR870007428A KR870007428A (ko) | 1987-08-19 |
| KR910009904B1 true KR910009904B1 (ko) | 1991-12-03 |
Family
ID=19248172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019860000497A Expired KR910009904B1 (ko) | 1986-01-27 | 1986-01-27 | 전자식 적산무효 전력계 |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR910009904B1 (ko) |
-
1986
- 1986-01-27 KR KR1019860000497A patent/KR910009904B1/ko not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| KR870007428A (ko) | 1987-08-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PA0109 | Patent application |
Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 19860127 |
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| PG1501 | Laying open of application | ||
| A201 | Request for examination | ||
| PA0201 | Request for examination |
Patent event code: PA02012R01D Patent event date: 19890304 Comment text: Request for Examination of Application Patent event code: PA02011R01I Patent event date: 19860127 Comment text: Patent Application |
|
| E902 | Notification of reason for refusal | ||
| PE0902 | Notice of grounds for rejection |
Comment text: Notification of reason for refusal Patent event date: 19910724 Patent event code: PE09021S01D |
|
| G160 | Decision to publish patent application | ||
| PG1605 | Publication of application before grant of patent |
Comment text: Decision on Publication of Application Patent event code: PG16051S01I Patent event date: 19911104 |
|
| E701 | Decision to grant or registration of patent right | ||
| PE0701 | Decision of registration |
Patent event code: PE07011S01D Comment text: Decision to Grant Registration Patent event date: 19920228 |
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| GRNT | Written decision to grant | ||
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