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Electrical Machines

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These notes cover (Electrical Machines ) in a clear, simple, and well-organized way. They include important definitions, formulas, diagrams, and explanations based on the latest (Osmania University) syllabus. Ideal for quick revision, exam preparation, and understanding key concepts. Highlights: Easy-to-read handwritten/typed format Unit-wise coverage Diagrams and solved examples included Perfect for EEE students (especially semester III) Total Pages: (72) Format: PDF Prepared by: Anushka Chintha (Electrical Engineering student)

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SPEED CONTROL OF DC SHUNT MOTORS

FIELD CONTROL METHODS
1. FIELD RHEOSTAT CONTROL
2. RELUCTANCE CONTROL
3. FIELD VOLTAGE CONTROL

ARMATURE CONTROL METHODS
1. ARMATURE RESISTANCE CONTROL
2. SHUNTED ARMATURE CONTROL
3. ARMATURE VOLTAGE CONTROL
4. WARD-LEONARD METHOD OF SPEED CONTROL

,Ward-Leonard Method of Speed Control

,
, SPEED CONTROL OF DC SERIES MOTORS

(i) Armature resistance control
(ii) Shunted armature control and
(iii) Armature terminal voltage control.

1. Armature Resistance Control.

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Institution: Osmania University
Course: Electrical Machines

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Uploaded on: October 17, 2025
Number of pages: 36
Written in: 2025/2026
Type: Class notes
Professor(s): Prof. r lingaswamy
Contains: All classes

Subjects

dc machines
dc generators
dc motors
electromagnetic energy conversion
power losses in a dc machine
efficiency of a dc machine

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anushkachintha Osmania University

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Electrical Machines

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