JPS55125021A - Protective relay device - Google Patents
Protective relay deviceInfo
- Publication number
- JPS55125021A JPS55125021A JP2815980A JP2815980A JPS55125021A JP S55125021 A JPS55125021 A JP S55125021A JP 2815980 A JP2815980 A JP 2815980A JP 2815980 A JP2815980 A JP 2815980A JP S55125021 A JPS55125021 A JP S55125021A
- Authority
- JP
- Japan
- Prior art keywords
- relay device
- protective relay
- protective
- relay
- 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.)
- Granted
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
- H02H3/26—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/28—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus
- H02H3/30—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus using pilot wires or other signalling channel
- H02H3/302—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus using pilot wires or other signalling channel involving phase comparison
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
- H02H7/262—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of switching or blocking orders
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/018,706 US4234901A (en) | 1979-03-08 | 1979-03-08 | Protective relay apparatus |
US18706 | 1979-03-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55125021A true JPS55125021A (en) | 1980-09-26 |
JPS6030184B2 JPS6030184B2 (ja) | 1985-07-15 |
Family
ID=21789372
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55028159A Expired JPS6030184B2 (ja) | 1979-03-08 | 1980-03-07 | 保護継電装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US4234901A (ja) |
JP (1) | JPS6030184B2 (ja) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IN155620B (ja) * | 1980-03-01 | 1985-02-16 | Gen Electric Co Plc | |
US4381531A (en) * | 1981-07-02 | 1983-04-26 | Carrier Corporation | Alternating current motor protection system |
SE446678B (sv) * | 1981-11-02 | 1986-09-29 | Asea Ab | Metod att detektera jordfel i net for distribution av elektrisk kraft och anordning for genomforande av metoden |
FR2523779A1 (fr) * | 1982-03-22 | 1983-09-23 | Berdanos Guy | Dispositif isole de transmission binaire par ligne electrique |
JPS6025336A (ja) * | 1983-07-21 | 1985-02-08 | Hitachi Ltd | キャリヤリレー装置 |
US5426554A (en) * | 1991-03-19 | 1995-06-20 | Albert Nocentino, Jr. | Audio bandwidth interface apparatus for pilot wire relays |
US5592354A (en) * | 1991-03-19 | 1997-01-07 | Nocentino, Jr.; Albert | Audio bandwidth interface apparatus for pilot wire relays |
US5262679A (en) * | 1991-07-29 | 1993-11-16 | Schweitzer Engineering Laboratories, Inc. | Polarizing potential transfer switch circuit for use with power transmission lines |
DE19526062A1 (de) * | 1995-07-17 | 1997-01-23 | Wind Strom Frisia Gmbh | Anordnung zur Begrenzung des Kurzschlußstromes in 3-phasigen Drehstromnetzen |
JP3259626B2 (ja) * | 1996-02-29 | 2002-02-25 | 株式会社日立製作所 | インバータ装置および電気車制御装置 |
US7747356B2 (en) | 2002-02-25 | 2010-06-29 | General Electric Company | Integrated protection, monitoring, and control system |
AU2003230562A1 (en) * | 2002-02-25 | 2003-09-09 | General Electric Company | Method and apparatus for ground fault protection |
US7196434B2 (en) * | 2003-03-21 | 2007-03-27 | Eaton Corporation | Modular contactor assembly having independently controllable contractors |
EP2624272B1 (en) * | 2012-02-01 | 2014-11-26 | ABB Technology AG | Switchgear with switching device driven by propellant charge |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2242950A (en) * | 1938-08-27 | 1941-05-20 | Westinghouse Electric & Mfg Co | Protective relaying equipment |
US3612952A (en) * | 1970-06-30 | 1971-10-12 | Westinghouse Electric Corp | Time delay signal device especially for phase comparison protective relaying system |
US3882361A (en) * | 1972-10-04 | 1975-05-06 | Westinghouse Electric Corp | Segregated phase comparison relaying apparatus |
US3893008A (en) * | 1972-10-04 | 1975-07-01 | Westinghouse Electric Corp | Segregated phase comparison relaying apparatus |
US3849763A (en) * | 1973-08-29 | 1974-11-19 | Westinghouse Electric Corp | Channel delay checkback apparatus |
US3898531A (en) * | 1974-01-25 | 1975-08-05 | Westinghouse Electric Corp | Segregated phase comparison relaying apparatus |
US4020396A (en) * | 1975-02-07 | 1977-04-26 | Westinghouse Electric Corporation | Time division multiplex system for a segregated phase comparison relay system |
US3986079A (en) * | 1975-02-07 | 1976-10-12 | Westinghouse Electric Corporation | Offset keying technique for segregated phase comparison relaying |
-
1979
- 1979-03-08 US US06/018,706 patent/US4234901A/en not_active Expired - Lifetime
-
1980
- 1980-03-07 JP JP55028159A patent/JPS6030184B2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6030184B2 (ja) | 1985-07-15 |
US4234901A (en) | 1980-11-18 |
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