IT1258780B - Rivelazione della messa a massa accidentale di un avvolgimento di rotore per generatore - Google Patents

Rivelazione della messa a massa accidentale di un avvolgimento di rotore per generatore

Info

Publication number
IT1258780B
IT1258780B ITMI920073A ITMI920073A IT1258780B IT 1258780 B IT1258780 B IT 1258780B IT MI920073 A ITMI920073 A IT MI920073A IT MI920073 A ITMI920073 A IT MI920073A IT 1258780 B IT1258780 B IT 1258780B
Authority
IT
Italy
Prior art keywords
rotor
winding
massing
accidental
detection
Prior art date
Application number
ITMI920073A
Other languages
English (en)
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 ITMI920073A0 publication Critical patent/ITMI920073A0/it
Publication of ITMI920073A1 publication Critical patent/ITMI920073A1/it
Application granted granted Critical
Publication of IT1258780B publication Critical patent/IT1258780B/it

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/34—Testing dynamo-electric machines
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/34—Testing dynamo-electric machines
    • G01R31/343—Testing dynamo-electric machines in operation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

E' descritto un dispositivo per rivelare una messa a terra accidentale in un avvolgimento montato per ruotare con il rotore di una macchina, in cui è presente un potenziale elettrico ai capi dell'avvolgimento durante il funzionamento della macchina, il rotore è a massa e l'avvolgimento è normalmente isolato dalla massa, il dispositivo comprendendo: un elemento emettitore di luce sensibile alla corrente montato per ruotare con il rotore e collegato elettricamente tra l'avvolgimento ed il rotore; ed un rivelatore sensibile alla luce fissato in posizione rispetto alla macchina ed avente un campo di osservazione che viene attraversato dall'elemento emettitore di luce durante una parte di ogni giro del motore.
ITMI920073A 1991-01-22 1992-01-16 Rivelazione della messa a massa accidentale di un avvolgimento di rotore per generatore IT1258780B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/643,623 US5126658A (en) 1991-01-22 1991-01-22 Generator rotor winding ground detection

Publications (3)

Publication Number Publication Date
ITMI920073A0 ITMI920073A0 (it) 1992-01-16
ITMI920073A1 ITMI920073A1 (it) 1993-07-16
IT1258780B true IT1258780B (it) 1996-02-29

Family

ID=24581611

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI920073A IT1258780B (it) 1991-01-22 1992-01-16 Rivelazione della messa a massa accidentale di un avvolgimento di rotore per generatore

Country Status (6)

Country Link
US (1) US5126658A (it)
JP (1) JPH05284693A (it)
KR (1) KR920015140A (it)
CA (1) CA2059782C (it)
ES (1) ES2040632B1 (it)
IT (1) IT1258780B (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5510726A (en) * 1993-11-17 1996-04-23 R. E. Phelon Co., Inc. Armature tester
US7936542B2 (en) * 2007-03-27 2011-05-03 Siemens Energy, Inc. Electronic ground detection apparatus for use on ground detector ring of power generating system
US8030905B2 (en) * 2008-07-10 2011-10-04 Honeywell International Inc. Isolated generator control unit (GCU)
CN102735988B (zh) * 2011-04-06 2016-01-20 戚宇林 配电网单相接地故障定位方法
CN107728064B (zh) * 2017-11-29 2019-09-27 西电通用电气自动化有限公司 发电机转子两点接地时第二点接地电阻和位置计算方法
KR200491837Y1 (ko) * 2019-01-22 2020-06-12 한전케이피에스 주식회사 회전자 접지 감시 시험 장치
CN114062964B (zh) * 2021-11-02 2023-06-13 中国长江电力股份有限公司 缩小双端注入式转子一点接地保护故障定位范围的方法
CN114062965B (zh) * 2021-11-02 2023-06-13 中国长江电力股份有限公司 缩小乒乓切换式转子一点接地保护故障定位范围的方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE638540A (it) * 1962-10-13
US3727123A (en) * 1972-02-22 1973-04-10 Electric Machinery Mfg Co Brushless generator field ground detection system
US3887867A (en) * 1973-06-08 1975-06-03 Avtron Manufacturing Inc Surge tester for detecting a ground fault in an electrical winding
US4145653A (en) * 1976-09-16 1979-03-20 Kohler Co. Waveform analyzer for rotating electrical circuitry
US4136312A (en) * 1976-12-30 1979-01-23 Westinghouse Electric Corp. Method and apparatus for detection of rotor faults in dynamoelectric machines
JPS53103550A (en) * 1977-02-23 1978-09-08 Toshiba Corp Protective device for earthed field windings of alternator
CH613569A5 (it) * 1977-03-01 1979-09-28 Bbc Brown Boveri & Cie
US4147982A (en) * 1977-10-06 1979-04-03 Electric Power Research Institute, Inc. Turbine generator ground current arcing detection apparatus and method
JPS5826522A (ja) * 1981-08-07 1983-02-17 三菱電機株式会社 交流発電機の接地検出装置
JPS58205211A (ja) * 1982-05-26 1983-11-30 Fanuc Ltd 障害自己診断機能付パルスエンコ−ダ
CA1214214A (en) * 1983-09-09 1986-11-18 James S. Mark Infra-red telemetry system
GB2157835B (en) * 1984-04-11 1987-10-21 Central Electr Generat Board Monitoring earth faults on dynamoelectrics machines
US4864242A (en) * 1988-09-06 1989-09-05 Westinghouse Electric Corp. Automatic field winding ground detector and locator

Also Published As

Publication number Publication date
ITMI920073A1 (it) 1993-07-16
KR920015140A (ko) 1992-08-26
JPH05284693A (ja) 1993-10-29
US5126658A (en) 1992-06-30
ES2040632B1 (es) 1995-01-01
CA2059782A1 (en) 1992-07-23
ITMI920073A0 (it) 1992-01-16
CA2059782C (en) 2000-04-04
ES2040632A2 (es) 1993-10-16
ES2040632R (it) 1994-06-16

Similar Documents

Publication Publication Date Title
SE7803868L (sv) Riktad vagdetektor
IT1258780B (it) Rivelazione della messa a massa accidentale di un avvolgimento di rotore per generatore
MX9300995A (es) Medidor de estado solido conectado a una fuente de voltaje y corriente alterna para medir el consumo de energia electrica alterna.
SE9602785D0 (sv) Anordning för riktad spänningsmätning samt användning av nämnda anordning
SE8803343D0 (sv) Elektrodlinjeskydd
ES2166185T3 (es) Maquina electrica con excitacion independiente.
IT1087660B (it) Dispositivo per rilevare e conteggiare l'energia di una stazione di carica ed i servizi forniti ad un elettromobile
SE9802688D0 (sv) Anordning för ett elstängsel
ES2078343T3 (es) Dispositivo de proteccion scr de bajo voltaje de disparo y estructura.
GB2151360B (en) Apparatus for locating fault points in electric guide loops
FI93998C (fi) Menetelmä ja laite kiertosuunnan mittaamiseen
KR880004318A (ko) 배전선로의 접지저항 측정방법및 장치
SU146399A1 (ru) Устройство дл обнаружени заземлени в сет х переменного тока
SU650153A1 (ru) Устройство дл защиты электродвигател от аномальных режимов
NO941149L (no) Anordning for påvisning av feil på underjordisk elektrisk kraftfordelingsnett
FR2662257B1 (fr) Dispositif a basse impedance destine a detecter la presence d'une tension bipolaire dans un circuit electrique.
JPH057752Y2 (it)
SE8205225D0 (sv) Anordning for detektering av leckage i en isolator till en elektrisk ledning
GR32435B (el) Ηλεκτρικον μετρον υγρας σταθμης.
SU502440A1 (ru) Устройство обнаружени неполнофазных режимов в воздушных электрических сет х
ES2120991T3 (es) Dispositivo de proteccion frente a las solicitaciones de tension.
SE8007903L (sv) Intrangsdetektoranleggning
SU522533A1 (ru) Устройство дл защиты прот женных линий электропередачи от коротких замыканий на землю
JPS5621748A (en) Contact detector
SE8600638L (sv) Anordning for strom- och spenningsmetning i en luftisolerad hogspenningsanleggning

Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19990129