GB1502594A - Electric drive unit for high-speed appliances for example gas ultra-centrifuges - Google Patents

Electric drive unit for high-speed appliances for example gas ultra-centrifuges

Info

Publication number
GB1502594A
GB1502594A GB2815/71A GB281571A GB1502594A GB 1502594 A GB1502594 A GB 1502594A GB 2815/71 A GB2815/71 A GB 2815/71A GB 281571 A GB281571 A GB 281571A GB 1502594 A GB1502594 A GB 1502594A
Authority
GB
United Kingdom
Prior art keywords
series
motor
centrifuges
drive unit
centrifuge
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
GB2815/71A
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.)
DORNIER AG
Original Assignee
DORNIER AG
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 DORNIER AG filed Critical DORNIER AG
Priority to GB2815/71A priority Critical patent/GB1502594A/en
Publication of GB1502594A publication Critical patent/GB1502594A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K99/00—Subject matter not provided for in other groups of this subclass
    • H02K99/20—Motors

Abstract

1502594 Exciting dynamo-electric machines DORNIER AG 20 Jan 1971 2815/71 Heading H2A In an istopic gas ultra-centrifuge, the rotation is provided by a hysteresis motor, the stator windings of which are supplied from a D.C. source U through cyclically-operated switches and a series LCR circuit. The switch-operating frequency is such as to produce oscillations at the required motor-operating speed, with a low harmonic content. In each phase (Fig. 3) the motor winding, with inductance L and resistance W, forms a damped oscillatory series circuit with a capacitor C, and is supplied from source U by the switch arrangement ER, ES or ET, respectively. Mechanical or electronic switches may be used. Several such motor control arrangements may be grouped together in the form of series, parallel, or series-parallel arrangements (Figs. 5-7, not shown). Auxiliary means are used to bring the centrifuge(s) up to their normal operating speed.
GB2815/71A 1971-01-20 1971-01-20 Electric drive unit for high-speed appliances for example gas ultra-centrifuges Expired GB1502594A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2815/71A GB1502594A (en) 1971-01-20 1971-01-20 Electric drive unit for high-speed appliances for example gas ultra-centrifuges

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2815/71A GB1502594A (en) 1971-01-20 1971-01-20 Electric drive unit for high-speed appliances for example gas ultra-centrifuges

Publications (1)

Publication Number Publication Date
GB1502594A true GB1502594A (en) 1978-03-01

Family

ID=9746457

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2815/71A Expired GB1502594A (en) 1971-01-20 1971-01-20 Electric drive unit for high-speed appliances for example gas ultra-centrifuges

Country Status (1)

Country Link
GB (1) GB1502594A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2361690A1 (en) * 1976-08-09 1978-03-10 Rca Corp SPEED CONTROL SYSTEM FOR TURNTABLE OR SIMILAR PLATES

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2361690A1 (en) * 1976-08-09 1978-03-10 Rca Corp SPEED CONTROL SYSTEM FOR TURNTABLE OR SIMILAR PLATES

Similar Documents

Publication Publication Date Title
KR830003963A (en) Variable speed electric machine with controlled magnetic flux density.
IE42909L (en) Electric motor
ES8404582A1 (en) Electrical appliance for controlling rotating asynchronous machines.
GB1402462A (en) Starting and speed regulation of an asynchronous electrical motor
GB1502594A (en) Electric drive unit for high-speed appliances for example gas ultra-centrifuges
GB1376172A (en) Rotary electric machines
FR2290781A1 (en) PROCESS FOR CONTROL OF TORQUE SUPPLIED BY AN ASYNCHRONOUS MACHINE
GB1106583A (en) Current inverters
US3675100A (en) Circuit for multi-speed two-phase motor
GB1309034A (en) Variable speed drive arrangements
FR2438936A1 (en) Rotating electrical machine with changeover switch - is designed for operating as variable speed motor or variable frequency generator
SU118544A1 (en) Electric shaft hoist
US2807765A (en) Capacitor start and run induction type motor
SU304892A1 (en) Brushless synchronized DC motor
GB875768A (en) Improvements in rotary electric machines
SU1001411A1 (en) Thyristorized induction drive
SU826541A1 (en) Electric drive
SU1149357A1 (en) Electric machine-rectifier source of three-phase voltage with stable frequency
SU817964A1 (en) Ac drive
FR2448809A1 (en) Async. motor control for electric vehicle transmission - includes rectifier and oscillator between diesel driven alternator and async. motor
SU748874A1 (en) Three-phase electronic switching device
SU1166254A1 (en) A.c.drive
GB1502366A (en) Singlephase induction motor
US3359475A (en) Control switch circuit for de-energizing the starting circuit of an electrical motor
SU1274118A1 (en) Device for assured supply of electric power with stable frequency

Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed