IT1104439B - Apparecchiatura per rilevare corrente sub-sincrona in impianti di distribuzione di potenza - Google Patents

Apparecchiatura per rilevare corrente sub-sincrona in impianti di distribuzione di potenza

Info

Publication number
IT1104439B
IT1104439B IT4150378A IT4150378A IT1104439B IT 1104439 B IT1104439 B IT 1104439B IT 4150378 A IT4150378 A IT 4150378A IT 4150378 A IT4150378 A IT 4150378A IT 1104439 B IT1104439 B IT 1104439B
Authority
IT
Italy
Prior art keywords
equipment
power distribution
distribution systems
detecting sub
synchronous current
Prior art date
Application number
IT4150378A
Other languages
English (en)
Italian (it)
Other versions
IT7841503A0 (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
Publication of IT7841503A0 publication Critical patent/IT7841503A0/it
Application granted granted Critical
Publication of IT1104439B publication Critical patent/IT1104439B/it

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
    • H02H3/46—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 frequency deviations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/18—Indicating phase sequence; Indicating synchronism
    • 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
    • H02H7/06—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 for dynamo-electric generators; for synchronous capacitors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Inverter Devices (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Filters And Equalizers (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Measurement Of Current Or Voltage (AREA)
IT4150378A 1977-01-06 1978-01-04 Apparecchiatura per rilevare corrente sub-sincrona in impianti di distribuzione di potenza IT1104439B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/757,177 US4125884A (en) 1977-01-06 1977-01-06 Apparatus for detecting subsynchronous current in power systems

Publications (2)

Publication Number Publication Date
IT7841503A0 IT7841503A0 (it) 1978-01-04
IT1104439B true IT1104439B (it) 1985-10-21

Family

ID=25046714

Family Applications (1)

Application Number Title Priority Date Filing Date
IT4150378A IT1104439B (it) 1977-01-06 1978-01-04 Apparecchiatura per rilevare corrente sub-sincrona in impianti di distribuzione di potenza

Country Status (14)

Country Link
US (1) US4125884A (US08063081-20111122-C00115.png)
JP (1) JPS5385352A (US08063081-20111122-C00115.png)
AR (1) AR213989A1 (US08063081-20111122-C00115.png)
AU (1) AU515422B2 (US08063081-20111122-C00115.png)
BR (1) BR7800018A (US08063081-20111122-C00115.png)
DE (1) DE2800067A1 (US08063081-20111122-C00115.png)
ES (1) ES465823A1 (US08063081-20111122-C00115.png)
FR (1) FR2377108A1 (US08063081-20111122-C00115.png)
GB (1) GB1599131A (US08063081-20111122-C00115.png)
IN (1) IN149274B (US08063081-20111122-C00115.png)
IT (1) IT1104439B (US08063081-20111122-C00115.png)
MX (1) MX144248A (US08063081-20111122-C00115.png)
SE (1) SE438579B (US08063081-20111122-C00115.png)
YU (1) YU40502B (US08063081-20111122-C00115.png)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4208687A (en) * 1978-11-08 1980-06-17 Westinghouse Electric Corp. Protective relay apparatus
US4218718A (en) * 1978-11-08 1980-08-19 Westinghouse Electric Corp. Protective relay apparatus
US4331882A (en) * 1980-03-17 1982-05-25 Electric Power Research Institute, Inc. Method and means for detecting spurious electrical signals in an electrical power system
US4454428A (en) * 1981-07-22 1984-06-12 Westinghouse Electric Corp. Noise reduction means for a dynamic stabilizer for synchronous machines having torsional oscillations and method
AU557496B2 (en) * 1981-09-10 1986-12-24 Westinghouse Electric Corporation Static var generator
US4451777A (en) * 1981-09-10 1984-05-29 Westinghouse Electric Corp. Static VAR generation for transmission line compensation
US4470091A (en) * 1982-10-20 1984-09-04 Westinghouse Electric Corp. Productive relay apparatus for protection from sub-synchronous current oscillations in a power system
US4607217A (en) * 1983-09-28 1986-08-19 Southern California Edison Company, Inc. Subsynchronous resonance detection
US4855664A (en) * 1988-06-10 1989-08-08 General Electric Company Method and apparatus for damping oscillations of an ac generator
US6774614B2 (en) 2002-02-27 2004-08-10 General Electric Company Method and apparatus for detecting current
ES2425792T3 (es) * 2010-02-17 2013-10-17 Abb Research Ltd. Procedimiento de detección de resonancia subsíncrona
CN102508027B (zh) * 2011-09-20 2014-05-28 南京南瑞继保电气有限公司 一种次同步模态信号的筛选分离监测方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3654516A (en) * 1971-04-07 1972-04-04 Westinghouse Electric Corp Change of current or voltage acutated protecting relay
US3886449A (en) * 1974-03-06 1975-05-27 Gen Electric Power measurement circuit
US3944846A (en) * 1974-03-19 1976-03-16 Southern California Edison Company Subsynchronous relay
US3999115A (en) * 1974-05-02 1976-12-21 Westinghouse Electric Corporation Dynamic stabilizer for synchronous machines having torsional oscillations and method
US4001695A (en) * 1975-03-24 1977-01-04 Systron Donner Corporation Automatic deviation analysis meter

Also Published As

Publication number Publication date
DE2800067A1 (de) 1978-07-20
JPS5627057B2 (US08063081-20111122-C00115.png) 1981-06-23
IN149274B (US08063081-20111122-C00115.png) 1981-10-17
YU1278A (en) 1982-08-31
BR7800018A (pt) 1978-12-05
MX144248A (es) 1981-09-17
SE438579B (sv) 1985-04-22
ES465823A1 (es) 1979-01-01
GB1599131A (en) 1981-09-30
JPS5385352A (en) 1978-07-27
AU3213778A (en) 1979-07-12
YU40502B (en) 1986-02-28
IT7841503A0 (it) 1978-01-04
AR213989A1 (es) 1979-04-11
FR2377108B1 (US08063081-20111122-C00115.png) 1981-11-27
SE7714957L (sv) 1978-07-07
US4125884A (en) 1978-11-14
AU515422B2 (en) 1981-04-02
FR2377108A1 (fr) 1978-08-04

Similar Documents

Publication Publication Date Title
IT8068239A0 (it) Apparecchiatura elettrica partico larmente blocco di giunzione
IT1092621B (it) Apparecchiatura sincrona di regolazione di potenza reattiva
PL206834A1 (pl) Przyrzad elektroniczny pomiarowy elektrycznego ukladu rozdzielczego mocy
IT1104439B (it) Apparecchiatura per rilevare corrente sub-sincrona in impianti di distribuzione di potenza
IT1080884B (it) Mezzi e metodi per la generazione di potenza foto-voltaica
DK396478A (da) Elektrisk fordelingsanlaeg med hurtigforbindelsesled
IT1099096B (it) Impianto di raffreddamento per centrali termoelettriche
IT1095019B (it) Impianto di installazione elettrica
MX147501A (es) Mejoras en equipo de enfriamiento
FI781144A (fi) Elektrisk anslutning med aendelement innefattande foerflyttbar sidovaegg
RO76065A (ro) Tabla de otel pentru electrotehnica
IT7831263A0 (it) Impianto generatore di potenza.
IT1099612B (it) Apparecchiatura di installazione elettrica
NO153351C (no) Indikeringsinnretning for kortslutning i hoeyspenningsfordelingsanlegg.
GB1557888A (en) Electrical distribution systems
BR7807971A (pt) Aperfeicoamentos em celulas de distribuicao de corrente
GB1555408A (en) Power plant cooling system
NZ185612A (en) Busbar on panelboard has control device supports
IT1088263B (it) Complesso di componenti per impianti di distribuzione elettrici
IT1147727B (it) Blocco di giunzione per collegamenti elettrici a potenza elevata
IT1105376B (it) Fusibile piatto in particolare per impianti elettrici di autoveicoli
IT1080827B (it) Apparecchiatura distributrice di potenza elettrica per veicoli di trasporto
SE7608181L (sv) For utomhusdrift avsedd hogspenningsfordelningsanleggning
IT1092144B (it) Accoppiatore per sbarre elettriche di distribuzione
GB1555724A (en) Electrical power distribution system