CA1038453A - Means for detecting ground insulation failure for rotary electric machines - Google Patents

Means for detecting ground insulation failure for rotary electric machines

Info

Publication number
CA1038453A
CA1038453A CA228,181A CA228181A CA1038453A CA 1038453 A CA1038453 A CA 1038453A CA 228181 A CA228181 A CA 228181A CA 1038453 A CA1038453 A CA 1038453A
Authority
CA
Canada
Prior art keywords
bearing
voltage
ground
shaft
oil film
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA228,181A
Other languages
English (en)
French (fr)
Other versions
CA228181S (en
Inventor
Joe H. Burrus
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Allis Chalmers Corp
Original Assignee
Allis Chalmers 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 Allis Chalmers Corp filed Critical Allis Chalmers Corp
Application granted granted Critical
Publication of CA1038453A publication Critical patent/CA1038453A/en
Expired legal-status Critical Current

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
    • 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)
  • Motor Or Generator Frames (AREA)
CA228,181A 1974-10-10 1975-05-30 Means for detecting ground insulation failure for rotary electric machines Expired CA1038453A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US513876A US3904940A (en) 1974-10-10 1974-10-10 Means for detecting ground insulation failure for rotary electric machines

Publications (1)

Publication Number Publication Date
CA1038453A true CA1038453A (en) 1978-09-12

Family

ID=24044966

Family Applications (1)

Application Number Title Priority Date Filing Date
CA228,181A Expired CA1038453A (en) 1974-10-10 1975-05-30 Means for detecting ground insulation failure for rotary electric machines

Country Status (6)

Country Link
US (1) US3904940A (enExample)
CA (1) CA1038453A (enExample)
CH (1) CH604412A5 (enExample)
DE (1) DE2545574A1 (enExample)
GB (1) GB1504800A (enExample)
SE (1) SE405778B (enExample)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH594891A5 (enExample) * 1976-04-22 1978-01-31 Bbc Brown Boveri & Cie
US4097794A (en) * 1976-11-15 1978-06-27 Allis-Chalmers Corporation Static means for detecting ground insulation failure for rotary electric machines
US4147982A (en) * 1977-10-06 1979-04-03 Electric Power Research Institute, Inc. Turbine generator ground current arcing detection apparatus and method
US4492999A (en) * 1981-05-09 1985-01-08 Mitsubishi Denki Kabushiki Kaisha Supervisory unit for rotary electrical machinery and apparatus
NL8103161A (nl) * 1981-06-30 1983-01-17 Skf Ind Trading & Dev Meetsysteem voor het meten van de variatie van de capacitieve impedantie van een in een huis gemonteerd lager .
US4502046A (en) * 1982-06-01 1985-02-26 Westinghouse Electric Corp. System for monitoring metal-to-metal contact in rotating machinery
US4563675A (en) * 1982-12-20 1986-01-07 Westinghouse Electric Corp. System for monitoring metal-to-metal contact in rotating machinery
DE3617452A1 (de) * 1986-05-23 1987-11-26 Klein Schanzlin & Becker Ag Verfahren zur ueberwachung einer asynchronmaschine
DE9210351U1 (de) * 1992-07-31 1992-10-01 Siemens AG, 8000 München Einrichtung zur Läufererdschlußüberwachung
DE102008035613A1 (de) * 2008-07-25 2010-01-28 Siemens Aktiengesellschaft Verfahren und Anordnung zur Lagerstromüberwachung einer elektrischen Maschine
DE102011108591A1 (de) * 2011-07-27 2013-01-31 Voith Patent Gmbh Überwachungsvorrichtung für eine doppelgespeiste Asynchronmaschine
WO2015120033A2 (en) 2014-02-05 2015-08-13 C-Motive Technologies Inc. Rotary capacitor for shunting high frequency bearing currents and reducing emi in electric machinery

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH399963A (de) * 1962-05-22 1965-09-30 Bbc Brown Boveri & Cie Vorrichtung zum Überwachen von Lagern
US3173086A (en) * 1962-07-18 1965-03-09 Gen Electric Apparatus including mechanical vibration detector means for detecting and locating incipient internal faults in electric induction apparatus
US3596135A (en) * 1966-11-07 1971-07-27 Andrew Stenger Jr Method and apparatus for detection of breakdown of insulation in electrical equipment

Also Published As

Publication number Publication date
US3904940A (en) 1975-09-09
SE405778B (sv) 1978-12-27
GB1504800A (en) 1978-03-22
SE7511208L (sv) 1976-04-12
CH604412A5 (enExample) 1978-09-15
DE2545574A1 (de) 1976-04-22

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