GB1538513A - Apparatus for calculating an estimate of the peak amplitude of an electrical sinusoidal wave - Google Patents
Apparatus for calculating an estimate of the peak amplitude of an electrical sinusoidal waveInfo
- Publication number
- GB1538513A GB1538513A GB35785/76A GB3578576A GB1538513A GB 1538513 A GB1538513 A GB 1538513A GB 35785/76 A GB35785/76 A GB 35785/76A GB 3578576 A GB3578576 A GB 3578576A GB 1538513 A GB1538513 A GB 1538513A
- Authority
- GB
- United Kingdom
- Prior art keywords
- estimate
- calculating
- peak amplitude
- sinusoidal wave
- electrical sinusoidal
- 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
Classifications
-
- 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
- G01R19/04—Measuring peak values or amplitude or envelope of AC or of pulses
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Measuring Phase Differences (AREA)
- Measuring Frequencies, Analyzing Spectra (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50104055A JPS5228364A (en) | 1975-08-29 | 1975-08-29 | Amplitude value calculating apparatus |
| JP50104054A JPS5228363A (en) | 1975-08-29 | 1975-08-29 | Amplitude value calculating appartus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1538513A true GB1538513A (en) | 1979-01-17 |
Family
ID=26444606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB35785/76A Expired GB1538513A (en) | 1975-08-29 | 1976-08-27 | Apparatus for calculating an estimate of the peak amplitude of an electrical sinusoidal wave |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4073008A (https=) |
| AU (1) | AU505684B2 (https=) |
| CA (1) | CA1080363A (https=) |
| CH (1) | CH615279A5 (https=) |
| GB (1) | GB1538513A (https=) |
| SE (1) | SE412469B (https=) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4218736A (en) * | 1978-04-03 | 1980-08-19 | Takeda Riken Kogyo Kabushikikaisha | Effective value measuring apparatus |
| US4625283A (en) * | 1982-05-07 | 1986-11-25 | Cooper Industries, Inc. | Method and apparatus for digitally measuring alternating current |
| EP0224089B1 (en) * | 1985-11-07 | 1990-05-02 | Kabushiki Kaisha Toshiba | Information data output device for electric-power systems |
| WO2019207673A1 (ja) * | 2018-04-25 | 2019-10-31 | 三菱電機株式会社 | 保護リレー |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3524075A (en) * | 1967-08-02 | 1970-08-11 | Honeywell Inc | Control apparatus |
| FR1550432A (https=) * | 1967-11-08 | 1968-12-20 | ||
| US3569785A (en) * | 1968-07-09 | 1971-03-09 | Ibm | Power system protective relaying by time-coordinated sampling and calculation |
| JPS4942713B1 (https=) * | 1970-11-09 | 1974-11-16 | ||
| JPS526039B2 (https=) * | 1971-12-17 | 1977-02-18 |
-
1976
- 1976-08-26 US US05/717,942 patent/US4073008A/en not_active Expired - Lifetime
- 1976-08-27 CA CA260,097A patent/CA1080363A/en not_active Expired
- 1976-08-27 SE SE7609519A patent/SE412469B/xx unknown
- 1976-08-27 CH CH1087476A patent/CH615279A5/fr not_active IP Right Cessation
- 1976-08-27 GB GB35785/76A patent/GB1538513A/en not_active Expired
- 1976-08-30 AU AU17290/76A patent/AU505684B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| AU505684B2 (en) | 1979-11-29 |
| CA1080363A (en) | 1980-06-24 |
| CH615279A5 (https=) | 1980-01-15 |
| US4073008A (en) | 1978-02-07 |
| AU1729076A (en) | 1978-03-09 |
| SE412469B (sv) | 1980-03-03 |
| SE7609519L (sv) | 1977-03-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19960826 |