FR2133905A1 - - Google Patents

Info

Publication number
FR2133905A1
FR2133905A1 FR7213826A FR7213826A FR2133905A1 FR 2133905 A1 FR2133905 A1 FR 2133905A1 FR 7213826 A FR7213826 A FR 7213826A FR 7213826 A FR7213826 A FR 7213826A FR 2133905 A1 FR2133905 A1 FR 2133905A1
Authority
FR
France
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.)
Withdrawn
Application number
FR7213826A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2133905A1 publication Critical patent/FR2133905A1/fr
Withdrawn legal-status Critical Current

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)
FR7213826A 1971-04-19 1972-04-19 Withdrawn FR2133905A1 (fr)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
FR2133905A1 true FR2133905A1 (fr) 1972-12-01

Family

ID=19726681

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7213826A Withdrawn FR2133905A1 (fr) 1971-04-19 1972-04-19

Country Status (3)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0196480A1 (fr) * 1985-03-14 1986-10-08 Sprecher Energie AG Installation de commutation haute tension

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0196480A1 (fr) * 1985-03-14 1986-10-08 Sprecher Energie AG Installation de commutation haute tension
US4808910A (en) * 1985-03-14 1989-02-28 Sprecher & Schuh Ag High voltage measurement transformer for suspension from a high voltage switching apparatus
AU598730B2 (en) * 1985-03-14 1990-07-05 Alstom Ag High voltage measurement transformer for suspension from a high voltage switching apparatus

Also Published As

Publication number Publication date
BE782318A (fr) 1972-08-16
LU63013A1 (fr) 1972-12-11

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Legal Events

Date Code Title Description
ST Notification of lapse