GB1198588A - Improvements in and relating to an Extinguishing-Circuit Switching System. - Google Patents

Improvements in and relating to an Extinguishing-Circuit Switching System.

Info

Publication number
GB1198588A
GB1198588A GB5687868A GB5687868A GB1198588A GB 1198588 A GB1198588 A GB 1198588A GB 5687868 A GB5687868 A GB 5687868A GB 5687868 A GB5687868 A GB 5687868A GB 1198588 A GB1198588 A GB 1198588A
Authority
GB
United Kingdom
Prior art keywords
capacitor
extinguishing
thyristor
relating
switching system
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
GB5687868A
Inventor
Marco Mazzia
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.)
BBC Brown Boveri AG Switzerland
Original Assignee
BBC Brown Boveri AG Switzerland
Brown Boveri und Cie AG Switzerland
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 BBC Brown Boveri AG Switzerland, Brown Boveri und Cie AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Publication of GB1198588A publication Critical patent/GB1198588A/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
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
    • H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
    • H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
    • H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
    • H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
    • H02P7/29—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using pulse modulation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/125—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M3/135—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/72—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/72—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region
    • H03K17/73—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region for dc voltages or currents

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

1,198,588. Control of D.C. motors. BROWN, BOVERI & CO. Ltd. 29 Nov., 1968 [1 Dec., 1967], No. 56878/68. Heading H2J. [Also in Division H3] A load, in the form of an electric motor 7, is supplied with pulsating direct-current through a main thyristor 1 which is shunted by an extinguishing thyristor 2 and a capacitor 4. The capacitor is charged partly from the constantvoltage direct-current source U and partly from a separate auxiliary source including a capacitor 6c chargeable by a transformer 6a and rectifier 6b. Ignition of an auxiliary thyristor 3 causes an oscillatory interchange between the capacitor 4 and an inductance 5 through the capacitor 6c whereby the capacitor 4 reverses its charge to a voltage which is higher than that of the source U by an amount corresponding to substantially twice the voltage across the capacitor 6c.
GB5687868A 1967-12-01 1968-11-29 Improvements in and relating to an Extinguishing-Circuit Switching System. Expired GB1198588A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2339867 1967-12-01

Publications (1)

Publication Number Publication Date
GB1198588A true GB1198588A (en) 1970-07-15

Family

ID=11206733

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5687868A Expired GB1198588A (en) 1967-12-01 1968-11-29 Improvements in and relating to an Extinguishing-Circuit Switching System.

Country Status (5)

Country Link
CH (1) CH482345A (en)
DE (1) DE1806226A1 (en)
FR (1) FR1597641A (en)
GB (1) GB1198588A (en)
SE (1) SE350665B (en)

Also Published As

Publication number Publication date
CH482345A (en) 1969-11-30
SE350665B (en) 1972-10-30
FR1597641A (en) 1970-06-29
DE1806226A1 (en) 1969-06-19

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees