FR517925A - Improvements to relays for alternating current - Google Patents

Improvements to relays for alternating current

Info

Publication number
FR517925A
FR517925A FR517925A FR517925DA FR517925A FR 517925 A FR517925 A FR 517925A FR 517925 A FR517925 A FR 517925A FR 517925D A FR517925D A FR 517925DA FR 517925 A FR517925 A FR 517925A
Authority
FR
France
Prior art keywords
relays
alternating current
alternating
current
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
FR517925A
Other languages
French (fr)
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.)
ELECTRIC CONTROL Ltd
Original Assignee
ELECTRIC CONTROL 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 ELECTRIC CONTROL Ltd filed Critical ELECTRIC CONTROL Ltd
Application granted granted Critical
Publication of FR517925A publication Critical patent/FR517925A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
    • H02P25/24—Variable impedance in stator or rotor circuit
    • H02P25/26—Variable impedance in stator or rotor circuit with arrangements for controlling secondary impedance

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
FR517925A 1918-05-10 1920-06-25 Improvements to relays for alternating current Expired FR517925A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB517925X 1918-05-10

Publications (1)

Publication Number Publication Date
FR517925A true FR517925A (en) 1921-05-17

Family

ID=10461390

Family Applications (1)

Application Number Title Priority Date Filing Date
FR517925A Expired FR517925A (en) 1918-05-10 1920-06-25 Improvements to relays for alternating current

Country Status (1)

Country Link
FR (1) FR517925A (en)

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