GB421694A - Improved means for regulating the speed of electric motors - Google Patents

Improved means for regulating the speed of electric motors

Info

Publication number
GB421694A
GB421694A GB36183/33A GB3618333A GB421694A GB 421694 A GB421694 A GB 421694A GB 36183/33 A GB36183/33 A GB 36183/33A GB 3618333 A GB3618333 A GB 3618333A GB 421694 A GB421694 A GB 421694A
Authority
GB
United Kingdom
Prior art keywords
speed
impedance
inductance
capacity
motor
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
GB36183/33A
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.)
Elektrisk Bureau AS
Original Assignee
Elektrisk Bureau AS
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 Elektrisk Bureau AS filed Critical Elektrisk Bureau AS
Publication of GB421694A publication Critical patent/GB421694A/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

Abstract

421,694. Maintaining defined speeds of D.C. motors. AKTIESELSKAPET ELEKTRISK BUREAU, 17, Middelthunsgate, Oslo, Norway. Dec. 22, 1933, No. 36183, Convention date, Dec. 23, 1932. [Class 38 (iii)] Non - regenerative braking.-The speed of a series motor is maintained constant by means of an impedance Z, comprising inductance L and capacity C, supplied with alternating-current from the motor armature at a frequency proportional to the speed, and exerting directly a corresponding braking effect. The impedance Z may be connected to slip-rings, on the armature shaft by brushes S1, S2. Variations of motor speed result in variations of the current flowing in the impedance, and the braking effect changes correspondingly to connect the speed. The impedance Z may comprise parallel paths of inductance and capacity in series, and other combinations of inductance and capacity are described with reference to Figs. 4, 5, and 6, not shown.
GB36183/33A 1932-12-23 1933-12-22 Improved means for regulating the speed of electric motors Expired GB421694A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO421694X 1932-12-23

Publications (1)

Publication Number Publication Date
GB421694A true GB421694A (en) 1934-12-28

Family

ID=19905612

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36183/33A Expired GB421694A (en) 1932-12-23 1933-12-22 Improved means for regulating the speed of electric motors

Country Status (1)

Country Link
GB (1) GB421694A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0161646A1 (en) * 1984-05-14 1985-11-21 Siemens Aktiengesellschaft Electric motor with variable speed

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0161646A1 (en) * 1984-05-14 1985-11-21 Siemens Aktiengesellschaft Electric motor with variable speed
US4672291A (en) * 1984-05-14 1987-06-09 Siemens Aktiengesellschaft Variable-speed electrical machine

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