GB8527788D0 - Testing ac generators - Google Patents

Testing ac generators

Info

Publication number
GB8527788D0
GB8527788D0 GB858527788A GB8527788A GB8527788D0 GB 8527788 D0 GB8527788 D0 GB 8527788D0 GB 858527788 A GB858527788 A GB 858527788A GB 8527788 A GB8527788 A GB 8527788A GB 8527788 D0 GB8527788 D0 GB 8527788D0
Authority
GB
United Kingdom
Prior art keywords
generators
testing
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.)
Granted
Application number
GB858527788A
Other versions
GB2183048B (en
GB2183048A (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.)
British Gas Corp
Original Assignee
British Gas 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 British Gas Corp filed Critical British Gas Corp
Priority to GB8527788A priority Critical patent/GB2183048B/en
Publication of GB8527788D0 publication Critical patent/GB8527788D0/en
Publication of GB2183048A publication Critical patent/GB2183048A/en
Application granted granted Critical
Publication of GB2183048B publication Critical patent/GB2183048B/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/1659—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 to indicate that the value is within or outside a predetermined range of values (window)
    • 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
    • G01R19/02—Measuring effective values, i.e. root-mean-square values
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
    • 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)
  • Lining Or Joining Of Plastics Or The Like (AREA)
GB8527788A 1985-11-11 1985-11-11 Method and apparatus for testing ac generators Expired GB2183048B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8527788A GB2183048B (en) 1985-11-11 1985-11-11 Method and apparatus for testing ac generators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8527788A GB2183048B (en) 1985-11-11 1985-11-11 Method and apparatus for testing ac generators

Publications (3)

Publication Number Publication Date
GB8527788D0 true GB8527788D0 (en) 1985-12-18
GB2183048A GB2183048A (en) 1987-05-28
GB2183048B GB2183048B (en) 1989-12-20

Family

ID=10588058

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8527788A Expired GB2183048B (en) 1985-11-11 1985-11-11 Method and apparatus for testing ac generators

Country Status (1)

Country Link
GB (1) GB2183048B (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB970342A (en) * 1960-03-18 1964-09-23 Nat Res Dev Voltmeter
US3743949A (en) * 1971-07-23 1973-07-03 Westinghouse Electric Corp Rms sensing apparatus
GB1577900A (en) * 1976-03-08 1980-10-29 Yokogawa Electric Works Ltd Effective value converting circuit
US4417198A (en) * 1981-08-31 1983-11-22 Duncan Electric Company, Inc. Average responding RMS indicating type transducer
US4559497A (en) * 1982-07-06 1985-12-17 Anthony Farrugia Ranged voltage monitor with out-of-range enunciators
US4567425A (en) * 1983-12-14 1986-01-28 General Electric Company Method of and apparatus for half-cycle-average or R.M.S. load voltage control
US4578632A (en) * 1984-05-07 1986-03-25 General Electric Company Intergratable load voltage sampling circuit for R.M.S. load average voltage control apparatus

Also Published As

Publication number Publication date
GB2183048B (en) 1989-12-20
GB2183048A (en) 1987-05-28

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee