SE388696B - Anordning for att erhalla utlosningsignaler vid fran en borfrekvens avvikande frekvenser hos en metspenning - Google Patents

Anordning for att erhalla utlosningsignaler vid fran en borfrekvens avvikande frekvenser hos en metspenning

Info

Publication number
SE388696B
SE388696B SE7404627A SE7404627A SE388696B SE 388696 B SE388696 B SE 388696B SE 7404627 A SE7404627 A SE 7404627A SE 7404627 A SE7404627 A SE 7404627A SE 388696 B SE388696 B SE 388696B
Authority
SE
Sweden
Prior art keywords
event
different frequencies
release signals
receiving release
drilling frequency
Prior art date
Application number
SE7404627A
Other languages
English (en)
Inventor
H Leibold
E 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 SE388696B publication Critical patent/SE388696B/sv

Links

Classifications

    • 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
    • G01R23/15—Indicating that frequency of pulses is either above or below a predetermined value or within or outside a predetermined range of values, by making use of non-linear or digital elements (indicating that pulse width is above or below a certain limit)
    • 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
    • H02H3/46—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 frequency deviations

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Control Of Eletrric Generators (AREA)
SE7404627A 1973-04-11 1974-04-05 Anordning for att erhalla utlosningsignaler vid fran en borfrekvens avvikande frekvenser hos en metspenning SE388696B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732318875 DE2318875C2 (de) 1973-04-11 1973-04-11 Schaltungsanordnung zur Gewinnung von Auslösesignalen bei von einer Sollfrequenz abweichenden Frequenzen

Publications (1)

Publication Number Publication Date
SE388696B true SE388696B (sv) 1976-10-11

Family

ID=5878072

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7404627A SE388696B (sv) 1973-04-11 1974-04-05 Anordning for att erhalla utlosningsignaler vid fran en borfrekvens avvikande frekvenser hos en metspenning

Country Status (4)

Country Link
CH (1) CH573123A5 (sv)
DE (1) DE2318875C2 (sv)
IT (1) IT1007821B (sv)
SE (1) SE388696B (sv)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2816879C2 (de) * 1978-04-18 1986-11-20 German Ing.(Grad.) 8060 Dachau Grimm Schaltung zur Frequenzregelung in elektrischen Energieverteilungsnetzen
DE2854315C2 (de) * 1978-12-15 1987-01-02 German Ing.(Grad.) 8060 Dachau Grimm Einrichtung zum Bestimmen von die Netzfrequenz beeinflussenden Störungen in elektrischen Energieversorgungsnetzen und Verwendung einer derartigen Einrichtung in einer adaptiven Frequenzregeleinrichtung für elektrische Energieversorgungsnetze
EP0035846A3 (en) * 1980-03-07 1982-01-27 Westinghouse Brake And Signal Company Limited Frequency check apparatus and utilisation in Go/No-Go apparatus

Also Published As

Publication number Publication date
DE2318875A1 (de) 1974-10-24
DE2318875C2 (de) 1982-08-19
CH573123A5 (sv) 1976-02-27
IT1007821B (it) 1976-10-30

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