DK481278A - Fremgangsmaade og anlaeg til kortslutningsovervaagning af elektriske ledninger - Google Patents
Fremgangsmaade og anlaeg til kortslutningsovervaagning af elektriske ledningerInfo
- Publication number
- DK481278A DK481278A DK481278A DK481278A DK481278A DK 481278 A DK481278 A DK 481278A DK 481278 A DK481278 A DK 481278A DK 481278 A DK481278 A DK 481278A DK 481278 A DK481278 A DK 481278A
- Authority
- DK
- Denmark
- Prior art keywords
- monitoring
- procedure
- short
- electrical wires
- wires
- Prior art date
Links
Classifications
-
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1312377A CH623963A5 (it) | 1977-10-28 | 1977-10-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
DK481278A true DK481278A (da) | 1979-04-29 |
Family
ID=4389536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK481278A DK481278A (da) | 1977-10-28 | 1978-10-27 | Fremgangsmaade og anlaeg til kortslutningsovervaagning af elektriske ledninger |
Country Status (12)
Country | Link |
---|---|
US (1) | US4230982A (it) |
AT (1) | AT366522B (it) |
BE (1) | BE871554R (it) |
BR (1) | BR7807110A (it) |
CH (1) | CH623963A5 (it) |
DE (1) | DE2753734A1 (it) |
DK (1) | DK481278A (it) |
FR (1) | FR2407593A2 (it) |
GB (1) | GB2010612B (it) |
IT (1) | IT1160013B (it) |
NL (1) | NL7810657A (it) |
SE (1) | SE440166B (it) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE418035B (sv) * | 1979-08-30 | 1981-04-27 | Asea Ab | Impedansmetande anordning vid impedansskydd |
US4362987A (en) * | 1980-09-12 | 1982-12-07 | Huntron Instruments, Inc. | Apparatus for detecting electrical shorts in electronic circuits |
US4612498A (en) * | 1982-08-06 | 1986-09-16 | Smalley Daniel S | Induction furnace fault locator |
US4525665A (en) * | 1982-08-06 | 1985-06-25 | Smalley Daniel S | Induction furnace monitor |
US4720822A (en) * | 1986-03-07 | 1988-01-19 | International Business Machines Corporation | High frequency signal measurement method and apparatus |
US5402072A (en) * | 1992-02-28 | 1995-03-28 | International Business Machines Corporation | System and method for testing and fault isolation of high density passive boards and substrates |
US5796258A (en) * | 1997-01-30 | 1998-08-18 | Abb Power T&D Company, Inc. | Adaptive quadrilateral characteristic distance relay |
GB2352891A (en) * | 1999-08-03 | 2001-02-07 | Alstom Uk Ltd | Fault protection in multi-phase power systems |
CN102577006B (zh) * | 2009-06-15 | 2014-10-01 | Abb技术有限公司 | 用于保护电力系统的设备的装置 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3354389A (en) * | 1963-10-24 | 1967-11-21 | Western Electric Co | Automatic high speed test apparatus for testing continuity and shorts simultaneouslyon a plurality of circuit paths |
GB1081576A (en) * | 1965-05-14 | 1967-08-31 | English Electric Co Ltd | Improvements in electrical measuring systems |
US3600673A (en) * | 1969-07-15 | 1971-08-17 | Thomas & Betts Corp | Sequentially stepped, termination indicating multiconductor checking and testing apparatus |
CA968412A (en) * | 1970-03-13 | 1975-05-27 | Louis Ricard | Dispositif de surveillance de lignes electriques |
US3699498A (en) * | 1970-04-30 | 1972-10-17 | Bell Telephone Labor Inc | Devices for making electrical connections |
US3676739A (en) * | 1971-09-07 | 1972-07-11 | Gen Electric | Mine power system ground continuity check circuit |
FR2160306B1 (it) * | 1971-11-19 | 1974-05-10 | Schlumberger Compteurs | |
DE2163004C3 (de) * | 1971-12-18 | 1975-01-09 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Unsymmetrieschutzeinrichtung für in Reihe geschaltete Kondensatoreinheiten |
US3860316A (en) * | 1973-07-06 | 1975-01-14 | Western Electric Co | Electrical connecting devices for terminating cords and methods of assembling the devices to cords |
US4095172A (en) * | 1977-02-09 | 1978-06-13 | William Strand | Vehicle antenna tester |
-
1977
- 1977-10-28 CH CH1312377A patent/CH623963A5/de not_active IP Right Cessation
- 1977-12-02 DE DE19772753734 patent/DE2753734A1/de not_active Ceased
-
1978
- 1978-10-12 AT AT0734878A patent/AT366522B/de not_active IP Right Cessation
- 1978-10-23 US US05/953,637 patent/US4230982A/en not_active Expired - Lifetime
- 1978-10-25 NL NL7810657A patent/NL7810657A/xx not_active Application Discontinuation
- 1978-10-26 IT IT29123/78A patent/IT1160013B/it active
- 1978-10-26 BE BE191356A patent/BE871554R/xx active
- 1978-10-27 BR BR7807110A patent/BR7807110A/pt unknown
- 1978-10-27 DK DK481278A patent/DK481278A/da not_active Application Discontinuation
- 1978-10-27 FR FR7830675A patent/FR2407593A2/fr active Pending
- 1978-10-27 SE SE7811207A patent/SE440166B/sv unknown
- 1978-10-30 GB GB7842506A patent/GB2010612B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
SE7811207L (sv) | 1979-04-29 |
DE2753734A1 (de) | 1979-05-03 |
US4230982A (en) | 1980-10-28 |
IT1160013B (it) | 1987-03-04 |
NL7810657A (nl) | 1979-05-02 |
GB2010612B (en) | 1982-10-20 |
FR2407593A2 (fr) | 1979-05-25 |
ATA734878A (de) | 1981-08-15 |
GB2010612A (en) | 1979-06-27 |
BR7807110A (pt) | 1979-07-17 |
SE440166B (sv) | 1985-07-15 |
IT7829123A0 (it) | 1978-10-26 |
CH623963A5 (it) | 1981-06-30 |
BE871554R (fr) | 1979-02-15 |
AT366522B (de) | 1982-04-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AHS | Application shelved for other reasons than non-payment |