DE2718798C3 - Schutzschaltungsanordnung für einen Gleichstrom-Hauptstromkreis - Google Patents

Schutzschaltungsanordnung für einen Gleichstrom-Hauptstromkreis

Info

Publication number
DE2718798C3
DE2718798C3 DE2718798A DE2718798A DE2718798C3 DE 2718798 C3 DE2718798 C3 DE 2718798C3 DE 2718798 A DE2718798 A DE 2718798A DE 2718798 A DE2718798 A DE 2718798A DE 2718798 C3 DE2718798 C3 DE 2718798C3
Authority
DE
Germany
Prior art keywords
direct current
resistor
pulse generator
voltage pulse
circuit arrangement
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
DE2718798A
Other languages
German (de)
English (en)
Other versions
DE2718798A1 (de
DE2718798B2 (de
Inventor
Shigeru Katsuta Kuriyama
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of DE2718798A1 publication Critical patent/DE2718798A1/de
Publication of DE2718798B2 publication Critical patent/DE2718798B2/de
Application granted granted Critical
Publication of DE2718798C3 publication Critical patent/DE2718798C3/de
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H02H7/08—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 dynamo-electric motors
    • H02H7/0833—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 dynamo-electric motors for electric motors with control arrangements
    • H02H7/0844—Fail safe control, e.g. by comparing control signal and controlled current, isolating motor on commutation error
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S388/00—Electricity: motor control systems
    • Y10S388/90—Specific system operational feature
    • Y10S388/903—Protective, e.g. voltage or current limit
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S388/00—Electricity: motor control systems
    • Y10S388/907—Specific control circuit element or device
    • Y10S388/917—Thyristor or scr
    • Y10S388/92—Chopper

Landscapes

  • Electronic Switches (AREA)
  • Protection Of Static Devices (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Dc-Dc Converters (AREA)
DE2718798A 1976-04-28 1977-04-27 Schutzschaltungsanordnung für einen Gleichstrom-Hauptstromkreis Expired DE2718798C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51047762A JPS5812829B2 (ja) 1976-04-28 1976-04-28 直流回路の保護装置

Publications (3)

Publication Number Publication Date
DE2718798A1 DE2718798A1 (de) 1977-11-17
DE2718798B2 DE2718798B2 (de) 1981-07-09
DE2718798C3 true DE2718798C3 (de) 1982-04-08

Family

ID=12784372

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2718798A Expired DE2718798C3 (de) 1976-04-28 1977-04-27 Schutzschaltungsanordnung für einen Gleichstrom-Hauptstromkreis

Country Status (4)

Country Link
US (1) US4126889A (enExample)
JP (1) JPS5812829B2 (enExample)
DE (1) DE2718798C3 (enExample)
FR (1) FR2349987A1 (enExample)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5941553B2 (ja) * 1977-04-26 1984-10-08 セイコーエプソン株式会社 電子時計
WO1980001526A1 (en) * 1978-02-09 1980-07-24 Caterpillar Tractor Co Control for direct-current motor with separately excited field
IT1110628B (it) * 1979-01-30 1985-12-23 Sp El Srl Circuito per la protezione automatica dei transistori di potenza particolarmente per convertitori a commutazione o simili
DE2946930A1 (de) * 1979-11-21 1981-05-27 Düpro AG, Romanshorn Geraet zum reinigen textiler bodenbelaege
US4361788A (en) * 1980-05-07 1982-11-30 Towmotor Corporation Dual-motor drive circuit with high current switching
US4454503A (en) * 1981-09-03 1984-06-12 General Electric Company Transistor fault indicator
DE3138361A1 (de) * 1981-09-26 1983-04-21 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Kurzschluss-ueberwachungsschaltung
US4539618A (en) * 1982-04-05 1985-09-03 Siemens-Allis, Inc. Digitally controlled overload relay
JPH082918Y2 (ja) * 1987-09-14 1996-01-29 三菱電機株式会社 しゃ断器の不足電圧引はずし制御装置
JPH0787602A (ja) * 1993-09-17 1995-03-31 Matsushita Electric Ind Co Ltd 電気自動車の保護装置
US5944635A (en) * 1998-01-28 1999-08-31 Digital Concepts Of Missouri, Inc. Safety shutdown and latch off
CN101988934A (zh) * 2009-07-30 2011-03-23 鸿富锦精密工业（深圳）有限公司 欠压侦测与报警电路

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1283359B (de) * 1965-04-20 1968-11-21 Ericsson Telefon Ab L M Kombinierte UEberstrom- und UEberspannungsschutzeinrichtung
DE1265835B (de) * 1965-11-05 1968-04-11 Gen Electric Schaltung zur UEberwachung der Leitungsdauer eines den Anker eines Gleichstrommotorsimpulsweise von einer Stromquelle mit Strom versorgenden Thyristors
US3484652A (en) * 1967-07-17 1969-12-16 Allis Chalmers Mfg Co Protection of a pulse modulated power system
GB1344614A (en) * 1970-02-17 1974-01-23 Cableform Ltd Improvements in or relating to control means for electric motors operated from batteries
JPS5531720B2 (enExample) * 1972-12-04 1980-08-20
JPS5213608B2 (enExample) * 1972-12-04 1977-04-15
US3902105A (en) * 1973-12-26 1975-08-26 Raymond Corp Thyristor motor control circuit
JPS5111131A (en) * 1974-07-19 1976-01-29 Hitachi Ltd Sairisutachotsupano tenryushitsupaikenshutsukairo

Also Published As

Publication number Publication date
JPS5812829B2 (ja) 1983-03-10
JPS52132322A (en) 1977-11-07
DE2718798A1 (de) 1977-11-17
DE2718798B2 (de) 1981-07-09
FR2349987A1 (fr) 1977-11-25
US4126889A (en) 1978-11-21
FR2349987B1 (enExample) 1983-02-18

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Legal Events

Date Code Title Description
OD Request for examination
C3 Grant after two publication steps (3rd publication)
8339 Ceased/non-payment of the annual fee