FR1564178A - - Google Patents

Info

Publication number
FR1564178A
FR1564178A FR1564178DA FR1564178A FR 1564178 A FR1564178 A FR 1564178A FR 1564178D A FR1564178D A FR 1564178DA FR 1564178 A FR1564178 A FR 1564178A
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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.)
Expired
Application number
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 filed Critical
Application granted granted Critical
Publication of FR1564178A publication Critical patent/FR1564178A/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • H02H3/44—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 the rate of change of electrical quantities
    • H02H3/445—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 the rate of change of electrical quantities of DC quantities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H3/00—Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte
    • B23H3/02—Electric circuits specially adapted therefor, e.g. power supply, control, preventing short circuits

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR1564178D 1967-04-19 1968-04-18 Expired FR1564178A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1788867 1967-04-19

Publications (1)

Publication Number Publication Date
FR1564178A true FR1564178A (fr) 1969-04-18

Family

ID=10102991

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1564178D Expired FR1564178A (fr) 1967-04-19 1968-04-18

Country Status (1)

Country Link
FR (1) FR1564178A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2630597A1 (de) * 1975-07-08 1977-01-20 Charbonnages De France Schutzschalter fuer eine elektrische leitung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2630597A1 (de) * 1975-07-08 1977-01-20 Charbonnages De France Schutzschalter fuer eine elektrische leitung

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Legal Events

Date Code Title Description
ST Notification of lapse