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 NO771331A priority patent/NO771331L/no
Priority to SE7704406A priority patent/SE416001B/xx
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)
  • Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
CH502976A 1976-04-22 1976-04-22 CH594891A5 (nl)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CH502976A CH594891A5 (nl) 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
NO771331A NO771331L (no) 1976-04-22 1977-04-18 Anordning for pr¦ving av aksel/lager-isolasjonen
SE7704406A SE416001B (sv) 1976-04-22 1977-04-18 Anordning for provning av axel/lagerisolering vid maskiner
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 (nl) 1976-04-22 1976-04-22

Publications (1)

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

Family

ID=4286728

Family Applications (1)

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

Country Status (7)

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

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
US9791348B2 (en) 2012-10-15 2017-10-17 Nanolab, Inc. Sensor for wear measurement, method for making same, and method for operating same
US9389195B2 (en) 2012-10-15 2016-07-12 Nanolab, Inc. Sensor for wear measurement, method of making, and method of 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
NO771331L (no) 1977-10-25
US4122388A (en) 1978-10-24
SE416001B (sv) 1980-11-17
FR2349143B1 (nl) 1982-11-19
SE7704406L (sv) 1977-10-23
FR2349143A1 (fr) 1977-11-18
CA1074400A (en) 1980-03-25
DE2621069A1 (de) 1977-11-10

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Legal Events

Date Code Title Description
PL Patent ceased