CH594891A5 - - Google Patents

Info

Publication number
CH594891A5
CH594891A5 CH502976A CH502976A CH594891A5 CH 594891 A5 CH594891 A5 CH 594891A5 CH 502976 A CH502976 A CH 502976A CH 502976 A CH502976 A CH 502976A CH 594891 A5 CH594891 A5 CH 594891A5
Authority
CH
Switzerland
Application number
CH502976A
Inventor
Felix Dipl Ing Bernasconi
Max Dipl Ing Salm
Original Assignee
Bbc Brown Boveri & Cie
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 Bbc Brown Boveri & Cie filed Critical Bbc Brown Boveri & Cie
Priority to CH502976A priority Critical patent/CH594891A5/xx
Priority to DE19762621069 priority patent/DE2621069A1/de
Priority to US05/787,214 priority patent/US4122388A/en
Priority to SE7704406A priority patent/SE416001B/xx
Priority to NO771331A priority patent/NO771331L/no
Priority to FR7711835A priority patent/FR2349143A1/fr
Priority to CA276,718A priority patent/CA1074400A/en
Publication of CH594891A5 publication Critical patent/CH594891A5/xx

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/16—Measuring impedance of element or network through which a current is passing from another source, e.g. cable, power line
    • G01R27/18—Measuring resistance to earth, i.e. line to ground
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/145—Indicating the presence of current or voltage
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/025—Measuring very high resistances, e.g. isolation resistances, i.e. megohm-meters

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Motor Or Generator Frames (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
CH502976A 1976-04-22 1976-04-22 CH594891A5 ( )

Priority Applications (7)

Application Number Priority Date Filing Date Title
CH502976A CH594891A5 ( ) 1976-04-22 1976-04-22
DE19762621069 DE2621069A1 (de) 1976-04-22 1976-05-12 Einrichtung zum pruefen der wellen/ lager-isolation
US05/787,214 US4122388A (en) 1976-04-22 1977-04-13 Apparatus for testing the shaft/bearing insulation of a turbo-machine
SE7704406A SE416001B (sv) 1976-04-22 1977-04-18 Anordning for provning av axel/lagerisolering vid maskiner
NO771331A NO771331L (no) 1976-04-22 1977-04-18 Anordning for pr¦ving av aksel/lager-isolasjonen
FR7711835A FR2349143A1 (fr) 1976-04-22 1977-04-20 Dispositif pour la verification de l'isolation entre arbre et palier
CA276,718A CA1074400A (en) 1976-04-22 1977-04-21 Apparatus for testing the shaft/bearing insulation of a turbo-machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH502976A CH594891A5 ( ) 1976-04-22 1976-04-22

Publications (1)

Publication Number Publication Date
CH594891A5 true CH594891A5 ( ) 1978-01-31

Family

ID=4286728

Family Applications (1)

Application Number Title Priority Date Filing Date
CH502976A CH594891A5 ( ) 1976-04-22 1976-04-22

Country Status (7)

Country Link
US (1) US4122388A ( )
CA (1) CA1074400A ( )
CH (1) CH594891A5 ( )
DE (1) DE2621069A1 ( )
FR (1) FR2349143A1 ( )
NO (1) NO771331L ( )
SE (1) SE416001B ( )

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2839246C2 (de) * 1978-09-08 1983-01-05 Siemens AG, 1000 Berlin und 8000 München Anordnung zum Unterdrücken von HF-Strömen in Lagern von Wellen
DE2935218A1 (de) * 1979-08-31 1981-03-26 Barmag Ag, 42897 Remscheid Spindel fuer hohe drehzahlen
US5032826A (en) * 1987-10-29 1991-07-16 Westinghouse Electric Corp. Core monitor that uses rotor shaft voltages
US4851949A (en) * 1988-06-13 1989-07-25 Westinghouse Electric Corp. Brush bounce detection in active shaft ground system
US5134378A (en) * 1991-03-08 1992-07-28 Michael Twerdochlib System and method for detecting faults in generator bearing pedestals and seal insulation
US6460013B1 (en) * 1999-05-06 2002-10-01 Paul I. Nippes Shaft voltage current monitoring system for early warning and problem detection
DE10312254B4 (de) * 2003-03-19 2007-02-15 Siemens Ag Traktionsmotor
DK2708741T3 (en) * 2012-09-12 2015-04-27 Siemens Ag Method and apparatus for monitoring a wind turbine bearing
US9389195B2 (en) 2012-10-15 2016-07-12 Nanolab, Inc. Sensor for wear measurement, method of making, and method of operating same
US9791348B2 (en) 2012-10-15 2017-10-17 Nanolab, Inc. Sensor for wear measurement, method for making same, and method for operating same
CN112763870A (zh) * 2020-12-29 2021-05-07 河南科技大学 一种轴承击穿电压的测试方法及装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2310335A (en) * 1941-01-10 1943-02-09 Western Electric Co Electrical apparatus
US2650346A (en) * 1949-04-27 1953-08-25 John P Rasor Apparatus and method for testing pipe coating
US3303410A (en) * 1964-02-07 1967-02-07 Westinghouse Electric Corp Rotating rectifier exciter ground detection arrangement
DE1217493B (de) * 1964-09-25 1966-05-26 Licentia Gmbh Einrichtung zur UEberwachung von Lagerstroemen bei elektrischen Maschinen
DE1613886A1 (de) * 1967-12-12 1971-08-12 Siemens Ag Einrichtung zur UEberwachung von Lagerstroemen bei elektrischen Maschinen,insbesondere grosser Leistung
US3746979A (en) * 1971-07-08 1973-07-17 V Kildishev Apparatus for measuring the insulation resistance of the rotor of a brushless synchronous machine
US3831160A (en) * 1973-10-01 1974-08-20 Gen Electric Voltage and current monitoring system
US3904940A (en) * 1974-10-10 1975-09-09 Allis Chalmers Means for detecting ground insulation failure for rotary electric machines

Also Published As

Publication number Publication date
FR2349143B1 ( ) 1982-11-19
SE416001B (sv) 1980-11-17
CA1074400A (en) 1980-03-25
DE2621069A1 (de) 1977-11-10
NO771331L (no) 1977-10-25
SE7704406L (sv) 1977-10-23
FR2349143A1 (fr) 1977-11-18
US4122388A (en) 1978-10-24

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Legal Events

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PL Patent ceased