KR0129272B1 - 배전반용 전력보호/계측제어장치의 입력회로 - Google Patents
배전반용 전력보호/계측제어장치의 입력회로Info
- Publication number
- KR0129272B1 KR0129272B1 KR1019940016019A KR19940016019A KR0129272B1 KR 0129272 B1 KR0129272 B1 KR 0129272B1 KR 1019940016019 A KR1019940016019 A KR 1019940016019A KR 19940016019 A KR19940016019 A KR 19940016019A KR 0129272 B1 KR0129272 B1 KR 0129272B1
- Authority
- KR
- South Korea
- Prior art keywords
- reference signal
- multiplexer
- line
- line signal
- 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 - Lifetime
Links
Classifications
-
- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16528—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values using digital techniques or performing arithmetic operations
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
Description
Claims (2)
- 배전선로로부터 선로신호를 검출하는 입력부담수단과, 기준신호를 발생하는 기준신호발생수단과, 상기 입력부담수단이 검출한 선로신호와 상기 기준신호발생수단이 기준신호를 가산하는 가산수단과, 상기 가산수단의 가산으로 얻어진 변형된 선로신호를 소정시간마다 샘플링하고 다음 샘플링까지 유지하는 샘플/홀딩수단과, 상기 샘플/홀딩수단이 샘플링한 상기 변형된 선로신호와 상기 기준신호발생수단이 발생한 기준신호중 어느 하나를 선택하는 멀티플렉서수단과, 상기 멀티플렉서수단이 선택한 변형된 선로신호 또는 기준신호를 디지털 화하는 아날로그/디지탈변환수단과, 상기 입력부담수단이 검출한 선로신호에 따라 상기 기준신호발생수단이 발생하는 기준신호를 가변하고 상기 멀티플렉서수단의 선택동작을 제어하면서 상기 아날로그/디지탈변환수단이 디지털화한 변형된 선로신호와 기준신호로 상기 기준신호발생수단과 멀티플렉서수단과 아날로그/디지탈변환수단 또는 상기 가산수단과 샘플/홀딩수단의 이상유무를 판단하는 마이크로프로세서를 구비한 것을 특징으로 하는 배전반용 전력보호/계측제어장치의 입력회로.
- 제1항에 있어서, 마이크로프로세서는 자기가 의도했던 기준신호와 실제로 기준신호발생수단에서 발생되는 기준신호가 동일하지 않으면 상기 기준신호발생수단 또는 멀티플렉서수단 또는 아날로그/디지탈변환수단에 이상이 있는 것으로 판단하고, 그리고 상기 아날로그/디지탈변환수단이 디지털화한 변형된 선로신호와 기준신호에 대한 처음 반주기동안의 실효치와 다음 반주기동안의 실효치가 서로 일치하지 않으면 상기 가산수단과 샘플/홀딩수단에 이상이 있는 것으로 판단하는 것을 특징으로 하는 배전반용 전력보호/계측제어장치의 입력회로.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940016019A KR0129272B1 (ko) | 1994-07-05 | 1994-07-05 | 배전반용 전력보호/계측제어장치의 입력회로 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940016019A KR0129272B1 (ko) | 1994-07-05 | 1994-07-05 | 배전반용 전력보호/계측제어장치의 입력회로 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR960006187A KR960006187A (ko) | 1996-02-23 |
KR0129272B1 true KR0129272B1 (ko) | 1998-04-09 |
Family
ID=19387293
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019940016019A Expired - Lifetime KR0129272B1 (ko) | 1994-07-05 | 1994-07-05 | 배전반용 전력보호/계측제어장치의 입력회로 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0129272B1 (ko) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100672042B1 (ko) * | 2005-07-20 | 2007-01-19 | 창명제어기술 (주) | 저압기중차단기 콘트롤 유니트의 지락 판단을 위한 신호검출 방법 및 이를 수행하기 위한 시스템 |
KR102410596B1 (ko) * | 2018-05-25 | 2022-06-20 | 엘에스엠트론 주식회사 | 압력센서조립체 |
-
1994
- 1994-07-05 KR KR1019940016019A patent/KR0129272B1/ko not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
KR960006187A (ko) | 1996-02-23 |
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