GB637057A - Frequency selective switching apparatus for use in alternating electric current supply systems - Google Patents

Frequency selective switching apparatus for use in alternating electric current supply systems

Info

Publication number
GB637057A
GB637057A GB6754/48A GB675448A GB637057A GB 637057 A GB637057 A GB 637057A GB 6754/48 A GB6754/48 A GB 6754/48A GB 675448 A GB675448 A GB 675448A GB 637057 A GB637057 A GB 637057A
Authority
GB
United Kingdom
Prior art keywords
circuit
winding
contacts
frequency selective
accepter
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
GB6754/48A
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.)
Lucas Support Services Ltd
Original Assignee
Rotax 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 Rotax Ltd filed Critical Rotax Ltd
Priority to GB6754/48A priority Critical patent/GB637057A/en
Priority to FR982237D priority patent/FR982237A/en
Publication of GB637057A publication Critical patent/GB637057A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B1/00—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values
    • G05B1/01—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values electric
    • G05B1/02—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values electric for comparing analogue signals
    • G05B1/025—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values electric for comparing analogue signals using inductance means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Power Engineering (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

637,057. Frequency selective load switching systems. ROTAX, Ltd., and HAMILTON, R. F. G. March 4, 1948, No. 6754. [Class 38 (iv)] A frequency selective switching system for connecting a load circuit i, i to a variablespeed alternator over a given range of frequencies comprises a polarized relay j-n having opposed operating windings j, k, of which winding tends to open the contacts m, n and is fed over one of a pair of rectifiers h from the terminals a of the alternator through a rejector circuit e, f. Winding k, which tends to close the contacts m, n, is similarly fed over the other rectifier through an accepter circuit b, c. At low alternator speeds the rejector circuit offers less impedance than the accepter circuit, so that winding j holds the relay contacts open. As the resonance frequency of the two circuits is approached the accepter circuit impedance falls whilst that of the rejector increases, so that winding k now overcomes winding j and the relay contacts close. Resistors d, g allow adjustment of the frequency range over which the contacts remain closed.
GB6754/48A 1948-03-04 1948-03-04 Frequency selective switching apparatus for use in alternating electric current supply systems Expired GB637057A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB6754/48A GB637057A (en) 1948-03-04 1948-03-04 Frequency selective switching apparatus for use in alternating electric current supply systems
FR982237D FR982237A (en) 1948-03-04 1949-03-01 Frequency selector for AC power sources

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6754/48A GB637057A (en) 1948-03-04 1948-03-04 Frequency selective switching apparatus for use in alternating electric current supply systems

Publications (1)

Publication Number Publication Date
GB637057A true GB637057A (en) 1950-05-10

Family

ID=9820163

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6754/48A Expired GB637057A (en) 1948-03-04 1948-03-04 Frequency selective switching apparatus for use in alternating electric current supply systems

Country Status (2)

Country Link
FR (1) FR982237A (en)
GB (1) GB637057A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2324212A (en) * 1997-04-09 1998-10-14 David Anthony Ryder Device for detecting pulse signature of a vehicle alternator

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU35542A1 (en) * 1957-10-29

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2324212A (en) * 1997-04-09 1998-10-14 David Anthony Ryder Device for detecting pulse signature of a vehicle alternator

Also Published As

Publication number Publication date
FR982237A (en) 1951-06-07

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