IT1056690B - Apparecchiatura di protezione a rele per linee di trasmissione di potenza polifasi - Google Patents

Apparecchiatura di protezione a rele per linee di trasmissione di potenza polifasi

Info

Publication number
IT1056690B
IT1056690B IT41516/76A IT4151676A IT1056690B IT 1056690 B IT1056690 B IT 1056690B IT 41516/76 A IT41516/76 A IT 41516/76A IT 4151676 A IT4151676 A IT 4151676A IT 1056690 B IT1056690 B IT 1056690B
Authority
IT
Italy
Prior art keywords
power transmission
transmission lines
protection equipment
relay protection
polyphase power
Prior art date
Application number
IT41516/76A
Other languages
English (en)
Italian (it)
Original Assignee
Westinghouse Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Application granted granted Critical
Publication of IT1056690B publication Critical patent/IT1056690B/it

Links

Classifications

    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Time-Division Multiplex Systems (AREA)
IT41516/76A 1975-02-07 1976-02-09 Apparecchiatura di protezione a rele per linee di trasmissione di potenza polifasi IT1056690B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US54813275A 1975-02-07 1975-02-07

Publications (1)

Publication Number Publication Date
IT1056690B true IT1056690B (it) 1982-02-20

Family

ID=24187555

Family Applications (1)

Application Number Title Priority Date Filing Date
IT41516/76A IT1056690B (it) 1975-02-07 1976-02-09 Apparecchiatura di protezione a rele per linee di trasmissione di potenza polifasi

Country Status (11)

Country Link
JP (1) JPS51103242A (enExample)
AR (1) AR212018A1 (enExample)
AU (1) AU503606B2 (enExample)
BR (1) BR7600683A (enExample)
DE (1) DE2604313A1 (enExample)
ES (1) ES444972A1 (enExample)
FR (1) FR2300449A1 (enExample)
GB (1) GB1501351A (enExample)
IN (1) IN145194B (enExample)
IT (1) IT1056690B (enExample)
SE (1) SE404109B (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1130383A (en) 1977-11-14 1982-08-24 Tobias D. Schonken Method and apparatus for monitoring poly-phase currents in poly-phase equipment
GB2135486A (en) * 1983-02-18 1984-08-30 Png Prod Ltd Methods of remote-control using T.D.M. systems and apparatus utilising said methods
JPH02223228A (ja) * 1988-12-06 1990-09-05 General Electric Co <Ge> 通信装置及び方法
US7714735B2 (en) 2005-09-13 2010-05-11 Daniel Rockwell Monitoring electrical assets for fault and efficiency correction
US20130054162A1 (en) 2011-08-31 2013-02-28 Tollgrade Communications, Inc. Methods and apparatus for determining conditions of power lines
US9562925B2 (en) 2012-02-14 2017-02-07 Tollgrade Communications, Inc. Power line management system
US9972989B2 (en) 2014-03-31 2018-05-15 Aclara Technologies Llc Optical voltage sensing for underground medium voltage wires
EP3186646B1 (en) 2014-08-29 2021-10-20 Aclara Technologies LLC Power extraction for a medium voltage sensor using a capacitive voltage divider

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3390233A (en) * 1965-01-08 1968-06-25 Sangamo Electric Co Digital unambiguous control of circuit interrupter means
US3696210A (en) * 1970-08-06 1972-10-03 Motorola Inc Data transferring system utilizing a monitor channel and logic circuitry to assure secure data communication
US3893008A (en) * 1972-10-04 1975-07-01 Westinghouse Electric Corp Segregated phase comparison relaying apparatus
US3832601A (en) * 1973-08-09 1974-08-27 Westinghouse Electric Corp Phase comparison relaying apparatus with two-count by-pass circuit

Also Published As

Publication number Publication date
FR2300449A1 (fr) 1976-09-03
GB1501351A (en) 1978-02-15
SE404109B (sv) 1978-09-18
DE2604313A1 (de) 1976-08-19
BR7600683A (pt) 1976-08-31
JPS51103242A (enExample) 1976-09-11
FR2300449B1 (enExample) 1982-04-02
AU1053276A (en) 1977-07-28
AR212018A1 (es) 1978-04-28
ES444972A1 (es) 1977-05-01
SE7601298L (sv) 1976-08-09
IN145194B (enExample) 1978-09-09
AU503606B2 (en) 1979-09-13

Similar Documents

Publication Publication Date Title
IT1128761B (it) Dispositivo di protezione antisimica particolarmente per disgiuntori elettrici
JPS5254147A (en) Quickkacting overload protection circuit for universal motor
ZA7880B (en) Protective relay circuit for interphase faults
IT1070773B (it) Rele di confronto di fase per la protezione di linee di trasmissione di potenza polifase
JPS51129064A (en) Protective circuit for overload senser for crane boom* etc*
BE873619A (fr) Bloc de jonction pour conducteurs de protection
IT1056690B (it) Apparecchiatura di protezione a rele per linee di trasmissione di potenza polifasi
DK573382A (da) Beskyttelsesindretning til asynkronmotorer
AU3578178A (en) Cable protection equipment
IT1056691B (it) Apparecchiatura a rele a confronto di fase per linee di trasmissione di potenza alternata
IT1088501B (it) Apparecchiatura di protezione a confronto di fase particolarmente per linee di trasmissione di potenza
JPS52153143A (en) Overload protective device for electrical device
IT1078801B (it) Scaricatore di protezione di linee per la trasmissione di segnali elettrici
FR2303367A1 (fr) Declencheur a selection prealable de fonction pour appareillage electrique
IT1013910B (it) Apparecchiatura di protezione a scatto del tipo a sbloccaggio particolarmente per linee di trasmissione di potenza elettrica
IT1029034B (it) Dispositivo di rilascio a scatto di interrjttore elettrico di protezione per trasmissione di potenza polifage
IT1115614B (it) Interruttore di protezione per linee elettriche
IT1066910B (it) Disgiuntore di protezione di linea elettrica
IT1099199B (it) Protezione di distanza per linee elettriche
IT1042209B (it) Dispositivo di sicurezza contro sovraccarichi per apparecchi di sollevamento
IT1021361B (it) Scatola di protezione per apparec chiature elettriche
IT8267242A0 (it) Sezionatore telescopico per linee elettriche
SE7606961L (sv) Skyddskoppling for elektriska anordningar
SE7808483L (sv) Anordning for att skydda trefashogspenningseffekttransformatorer
IT7721454U1 (it) Protettore per linee elettriche di telecomunicazione