GB8815879D0 - Detecting rotor bar faults - Google Patents

Detecting rotor bar faults

Info

Publication number
GB8815879D0
GB8815879D0 GB888815879A GB8815879A GB8815879D0 GB 8815879 D0 GB8815879 D0 GB 8815879D0 GB 888815879 A GB888815879 A GB 888815879A GB 8815879 A GB8815879 A GB 8815879A GB 8815879 D0 GB8815879 D0 GB 8815879D0
Authority
GB
United Kingdom
Prior art keywords
rotor bar
detecting rotor
bar faults
faults
detecting
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.)
Withdrawn
Application number
GB888815879A
Other versions
GB2207017A (en
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.)
Cogent Ltd
Original Assignee
Cogent Ltd
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 Cogent Ltd filed Critical Cogent Ltd
Publication of GB8815879D0 publication Critical patent/GB8815879D0/en
Publication of GB2207017A publication Critical patent/GB2207017A/en
Withdrawn legal-status Critical Current

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
    • G01R31/346—Testing of armature or field windings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/16—Spectrum analysis; Fourier analysis
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
GB08815879A 1987-07-06 1988-07-04 Phase locked loop Withdrawn GB2207017A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB878715812A GB8715812D0 (en) 1987-07-06 1987-07-06 Detecting rotor bar faults

Publications (2)

Publication Number Publication Date
GB8815879D0 true GB8815879D0 (en) 1988-08-10
GB2207017A GB2207017A (en) 1989-01-18

Family

ID=10620131

Family Applications (2)

Application Number Title Priority Date Filing Date
GB878715812A Pending GB8715812D0 (en) 1987-07-06 1987-07-06 Detecting rotor bar faults
GB08815879A Withdrawn GB2207017A (en) 1987-07-06 1988-07-04 Phase locked loop

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB878715812A Pending GB8715812D0 (en) 1987-07-06 1987-07-06 Detecting rotor bar faults

Country Status (1)

Country Link
GB (2) GB8715812D0 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4262264A (en) * 1979-02-16 1981-04-14 General Electric Company Apparatus and method for achieving acquisition and maintaining lock in a phase locked loop
GB2079552B (en) * 1980-07-02 1984-02-01 Philips Electronic Associated Double phase lock loop
US4484152A (en) * 1982-05-19 1984-11-20 Westinghouse Electric Corp. Phase-locked loop having improved locking capabilities
GB2143385A (en) * 1983-07-13 1985-02-06 Plessey Co Plc Phase lock loop circuit

Also Published As

Publication number Publication date
GB2207017A (en) 1989-01-18
GB8715812D0 (en) 1987-08-12

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)