GB1074464A - Spark erosion machines - Google Patents

Spark erosion machines

Info

Publication number
GB1074464A
GB1074464A GB22835/65A GB2283565A GB1074464A GB 1074464 A GB1074464 A GB 1074464A GB 22835/65 A GB22835/65 A GB 22835/65A GB 2283565 A GB2283565 A GB 2283565A GB 1074464 A GB1074464 A GB 1074464A
Authority
GB
United Kingdom
Prior art keywords
transistor
resistor
pulses
pulsed
intervals
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
GB22835/65A
Other languages
English (en)
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.)
SMS Elotherm GmbH
Original Assignee
AEG Elotherm GmbH
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 AEG Elotherm GmbH filed Critical AEG Elotherm GmbH
Publication of GB1074464A publication Critical patent/GB1074464A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
    • B23H1/02—Electric circuits specially adapted therefor, e.g. power supply, control, preventing short circuits or other abnormal discharges
    • B23H1/026—Power supply protection, e.g. detection of power switch breakdown
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
    • H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
GB22835/65A 1964-05-30 1965-05-28 Spark erosion machines Expired GB1074464A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA46177A DE1260055B (de) 1964-05-30 1964-05-30 Verfahren zum Betrieb von Generatoren fuer Funkenerosionsmaschinen und Schaltungsanordnung zur Ausuebung des Verfahrens

Publications (1)

Publication Number Publication Date
GB1074464A true GB1074464A (en) 1967-07-05

Family

ID=6935133

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22835/65A Expired GB1074464A (en) 1964-05-30 1965-05-28 Spark erosion machines

Country Status (4)

Country Link
US (1) US3399288A (de)
CH (1) CH428025A (de)
DE (1) DE1260055B (de)
GB (1) GB1074464A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2155261A (en) * 1984-01-23 1985-09-18 Canon Kk Protecting power control circuits

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3532850A (en) * 1966-07-27 1970-10-06 Amsted Ind Inc Power supply for electrical discharge machining
US3484652A (en) * 1967-07-17 1969-12-16 Allis Chalmers Mfg Co Protection of a pulse modulated power system
DE102018219692A1 (de) * 2018-11-16 2020-05-20 Siemens Aktiengesellschaft Schutzschaltgerät für einen Niederspannungsstromkreis zur Erkennung von seriellen Fehlerlichtbögen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2616014A (en) * 1948-02-26 1952-10-28 Gen Motors Corp Weld analyzer
US2866921A (en) * 1956-02-23 1958-12-30 Elox Corp Michigan Arc machining
US2871410A (en) * 1957-06-24 1959-01-27 Elox Corp Michigan Electrical discharge machining watchdog circuit
US3217207A (en) * 1961-05-26 1965-11-09 Elox Corp Michigan Peak drive protective circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2155261A (en) * 1984-01-23 1985-09-18 Canon Kk Protecting power control circuits

Also Published As

Publication number Publication date
DE1260055B (de) 1968-02-01
CH428025A (de) 1967-01-15
US3399288A (en) 1968-08-27

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