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AU465539B2 - Improvements in or relating to phase-angle comparators - Google Patents
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AU465539B2 - Improvements in or relating to phase-angle comparators - Google Patents

Improvements in or relating to phase-angle comparators

Info

Publication number
AU465539B2
AU465539B2 AU36519/71A AU3651971A AU465539B2 AU 465539 B2 AU465539 B2 AU 465539B2 AU 36519/71 A AU36519/71 A AU 36519/71A AU 3651971 A AU3651971 A AU 3651971A AU 465539 B2 AU465539 B2 AU 465539B2
Authority
AU
Australia
Prior art keywords
relating
phase
comparators
angle
angle comparators
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
AU36519/71A
Other versions
AU3651971A (en
Inventor
Jackson Lawrence
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.)
Rolls Royce Power Engineering PLC
Original Assignee
Northern Engineering Industries PLC
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 Northern Engineering Industries PLC filed Critical Northern Engineering Industries PLC
Publication of AU3651971A publication Critical patent/AU3651971A/en
Application granted granted Critical
Publication of AU465539B2 publication Critical patent/AU465539B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/38—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to both voltage and current; responsive to phase angle between voltage and current
    • H02H3/382—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to both voltage and current; responsive to phase angle between voltage and current involving phase comparison between current and voltage or between values derived from current and voltage
AU36519/71A 1970-12-10 1971-12-06 Improvements in or relating to phase-angle comparators Expired AU465539B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB58695/70 1970-12-10
GB5869570A GB1374425A (en) 1970-12-10 1970-12-10 Phase-angle comparators

Publications (2)

Publication Number Publication Date
AU3651971A AU3651971A (en) 1973-09-06
AU465539B2 true AU465539B2 (en) 1975-10-02

Family

ID=10482206

Family Applications (1)

Application Number Title Priority Date Filing Date
AU36519/71A Expired AU465539B2 (en) 1970-12-10 1971-12-06 Improvements in or relating to phase-angle comparators

Country Status (4)

Country Link
AU (1) AU465539B2 (en)
CA (1) CA979513A (en)
GB (1) GB1374425A (en)
ZA (1) ZA718000B (en)

Also Published As

Publication number Publication date
AU3651971A (en) 1973-09-06
GB1374425A (en) 1974-11-20
CA979513A (en) 1975-12-09
ZA718000B (en) 1973-07-25

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