FR2203080A1 - - Google Patents
Info
- Publication number
- FR2203080A1 FR2203080A1 FR7236705A FR7236705A FR2203080A1 FR 2203080 A1 FR2203080 A1 FR 2203080A1 FR 7236705 A FR7236705 A FR 7236705A FR 7236705 A FR7236705 A FR 7236705A FR 2203080 A1 FR2203080 A1 FR 2203080A1
- Authority
- FR
- France
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/38—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to both voltage and current; responsive to phase angle between voltage and current
- H02H3/382—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to both voltage and current; responsive to phase angle between voltage and current involving phase comparison between current and voltage or between values derived from current and voltage
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Emergency Protection Circuit Devices (AREA)
- Networks Using Active Elements (AREA)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7236705A FR2203080B1 (en) | 1972-10-17 | 1972-10-17 | |
CH1460673A CH575673A5 (en) | 1972-10-17 | 1973-10-15 | |
DE19732351872 DE2351872C3 (en) | 1972-10-17 | 1973-10-16 | Distance protection device |
GB4818973A GB1444774A (en) | 1972-10-17 | 1973-10-16 | Process and apparatus for impedance protection of an electrical transmission line |
SE7314029A SE406998B (en) | 1972-10-17 | 1973-10-16 | DISTANCE PROTECTION DEVICE FOR AN ELECTRICAL ENERGY TRANSMISSION LINE |
ES419728A ES419728A1 (en) | 1972-10-17 | 1973-10-17 | Process and apparatus for impedance protection of an electrical transmission line |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7236705A FR2203080B1 (en) | 1972-10-17 | 1972-10-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2203080A1 true FR2203080A1 (en) | 1974-05-10 |
FR2203080B1 FR2203080B1 (en) | 1977-08-26 |
Family
ID=9105755
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7236705A Expired FR2203080B1 (en) | 1972-10-17 | 1972-10-17 |
Country Status (6)
Country | Link |
---|---|
CH (1) | CH575673A5 (en) |
DE (1) | DE2351872C3 (en) |
ES (1) | ES419728A1 (en) |
FR (1) | FR2203080B1 (en) |
GB (1) | GB1444774A (en) |
SE (1) | SE406998B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2316772A1 (en) * | 1975-06-19 | 1977-01-28 | Bbc Brown Boveri & Cie | METHOD AND DEVICE FOR DETECTION OF SHORT CIRCUITS ON ELECTRIC LINES |
FR2345728A1 (en) * | 1976-03-25 | 1977-10-21 | Bbc Brown Boveri & Cie | METHOD AND DEVICE FOR LOCATING FAULTS ON AN ELECTRIC LINE |
FR2464480A1 (en) * | 1979-08-30 | 1981-03-06 | Asea Ab | IMPEDANCE MEASURING DEVICE FOR AN ELECTRIC POWER TRANSMISSION LINE |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH618294A5 (en) * | 1977-09-06 | 1980-07-15 | Bbc Brown Boveri & Cie | |
AT386702B (en) * | 1985-03-07 | 1988-10-10 | Elin Union Ag | Electronic overcurrent relay with phase-angle-dependent sensitivity switching |
US4667186A (en) * | 1985-03-13 | 1987-05-19 | Raychem Corporation | Phase difference fault detector |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1453285A (en) * | 1964-04-28 | 1966-06-03 | English Electric Co Ltd | Devices indicating a predetermined load condition in an electrical circuit |
FR1566498A (en) * | 1968-03-11 | 1969-05-09 | ||
DE1302257B (en) * | 1964-06-19 | 1972-07-06 | Hartmann & Braun Ag |
-
1972
- 1972-10-17 FR FR7236705A patent/FR2203080B1/fr not_active Expired
-
1973
- 1973-10-15 CH CH1460673A patent/CH575673A5/xx not_active IP Right Cessation
- 1973-10-16 SE SE7314029A patent/SE406998B/en unknown
- 1973-10-16 DE DE19732351872 patent/DE2351872C3/en not_active Expired
- 1973-10-16 GB GB4818973A patent/GB1444774A/en not_active Expired
- 1973-10-17 ES ES419728A patent/ES419728A1/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1453285A (en) * | 1964-04-28 | 1966-06-03 | English Electric Co Ltd | Devices indicating a predetermined load condition in an electrical circuit |
DE1302257B (en) * | 1964-06-19 | 1972-07-06 | Hartmann & Braun Ag | |
FR1566498A (en) * | 1968-03-11 | 1969-05-09 |
Non-Patent Citations (3)
Title |
---|
(L'ARTICLE "GRAPHICAL METHODS, DESIGN CONSIDERATIONS, PRATICAL CIRCUITS AND TEST RESULTS OF MULTI-INPUT SINE COMPARATORS" PAR N.M. ANIL. ET AL. PARU DANS LA *REVUE GB "INTERNATIONAL JOURNAL OF ELECTRONICS" VOLUME 25, NO 4 D'OCTOBRE 1968, PAGES 331 A 348) * |
L'ARTICLE "A GENERAL APPROACH TO SINE COMPARATORS" PAR K.K. THAKKAR ET. AL. PARU DANS LA *REVUE GB "INTERNATIONNAL JOURNAL OF ELECTRONICS" VOLUME 29, NO 6 DU DECEMBRE 1970, PAGES 557 ET 564 * |
L'ARTICLE "IMPROVED STATIC DISTANCE RELAYS USING OPERATIONAL AMPLFIERS" PAR M. RAMAMOORTY ET. AL. PARU DANS L'"IEEE CONFERENCE PAPER" C72433-1 ET PRESENTE A LA CONFERENCE "IEEE PES SUMMERMEETING" DU 9 A 14 JUILLET 1972) * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2316772A1 (en) * | 1975-06-19 | 1977-01-28 | Bbc Brown Boveri & Cie | METHOD AND DEVICE FOR DETECTION OF SHORT CIRCUITS ON ELECTRIC LINES |
FR2345728A1 (en) * | 1976-03-25 | 1977-10-21 | Bbc Brown Boveri & Cie | METHOD AND DEVICE FOR LOCATING FAULTS ON AN ELECTRIC LINE |
FR2464480A1 (en) * | 1979-08-30 | 1981-03-06 | Asea Ab | IMPEDANCE MEASURING DEVICE FOR AN ELECTRIC POWER TRANSMISSION LINE |
Also Published As
Publication number | Publication date |
---|---|
DE2351872C3 (en) | 1981-02-12 |
CH575673A5 (en) | 1976-05-14 |
GB1444774A (en) | 1976-08-04 |
DE2351872B2 (en) | 1980-06-04 |
FR2203080B1 (en) | 1977-08-26 |
SE406998B (en) | 1979-03-05 |
ES419728A1 (en) | 1976-03-01 |
DE2351872A1 (en) | 1974-04-18 |