BE782318A - - Google Patents

Info

Publication number
BE782318A
BE782318A BE782318A BE782318A BE782318A BE 782318 A BE782318 A BE 782318A BE 782318 A BE782318 A BE 782318A BE 782318 A BE782318 A BE 782318A BE 782318 A BE782318 A BE 782318A
Authority
BE
Belgium
Application number
BE782318A
Original Assignee
Gardy Sa
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 Gardy Sa filed Critical Gardy Sa
Publication of BE782318A publication Critical patent/BE782318A/xx

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
    • G01R19/16571—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 comparing AC or DC current with one threshold, e.g. load current, over-current, surge current or fault current
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/22—Instruments transformers for single phase ac
    • H01F38/28—Current transformers
    • H01F38/30—Constructions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/22—Instruments transformers for single phase ac
    • H01F38/28—Current transformers
    • H01F38/32—Circuit arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
    • H01F2029/143—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias with control winding for generating magnetic bias

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
BE782318A 1971-04-19 1972-04-19 BE782318A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU63013 1971-04-19

Publications (1)

Publication Number Publication Date
BE782318A true BE782318A (ja) 1972-08-16

Family

ID=19726681

Family Applications (1)

Application Number Title Priority Date Filing Date
BE782318A BE782318A (ja) 1971-04-19 1972-04-19

Country Status (3)

Country Link
BE (1) BE782318A (ja)
FR (1) FR2133905A1 (ja)
LU (1) LU63013A1 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH667557A5 (de) * 1985-03-14 1988-10-14 Sprecher Energie Ag Hochspannungsschaltanlage.

Also Published As

Publication number Publication date
LU63013A1 (ja) 1972-12-11
FR2133905A1 (ja) 1972-12-01

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