CH414011A - Circuit arrangement for determining the sign of the phase shift between two electrical quantities, in particular for determining the direction of energy in network protection devices - Google Patents

Circuit arrangement for determining the sign of the phase shift between two electrical quantities, in particular for determining the direction of energy in network protection devices

Info

Publication number
CH414011A
CH414011A CH1077464A CH1077464A CH414011A CH 414011 A CH414011 A CH 414011A CH 1077464 A CH1077464 A CH 1077464A CH 1077464 A CH1077464 A CH 1077464A CH 414011 A CH414011 A CH 414011A
Authority
CH
Switzerland
Prior art keywords
determining
sign
energy
phase shift
circuit arrangement
Prior art date
Application number
CH1077464A
Other languages
German (de)
Inventor
Eckhard Dipl Phys Born
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of CH414011A publication Critical patent/CH414011A/en

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
CH1077464A 1963-09-05 1964-08-18 Circuit arrangement for determining the sign of the phase shift between two electrical quantities, in particular for determining the direction of energy in network protection devices CH414011A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1963S0087101 DE1273685B (en) 1963-09-05 1963-09-05 Circuit arrangement for determining the sign of the phase shift between two electrical alternating quantities, preferably for determining the direction of energy in network protection devices

Publications (1)

Publication Number Publication Date
CH414011A true CH414011A (en) 1966-05-31

Family

ID=7513502

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1077464A CH414011A (en) 1963-09-05 1964-08-18 Circuit arrangement for determining the sign of the phase shift between two electrical quantities, in particular for determining the direction of energy in network protection devices

Country Status (3)

Country Link
CH (1) CH414011A (en)
DE (1) DE1273685B (en)
SE (1) SE323130B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE33874E (en) * 1986-05-22 1992-04-07 Franklin Electric Co., Inc. Electric motor load sensing system
US4703387A (en) * 1986-05-22 1987-10-27 Franklin Electric Co., Inc. Electric motor underload protection system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB899085A (en) * 1959-03-12 1962-06-20 British Telecomm Res Ltd Improvements in or relating to electrical phase sensing circuits

Also Published As

Publication number Publication date
SE323130B (en) 1970-04-27
DE1273685B (en) 1968-07-25

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