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UJT Relaxation Oscillator

on January 08, 2021

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UJT Relaxation Oscillator

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AP SBTET C16 Syllabus Book PDF Download

ELECTRICAL & ELECTRONICS ENGINEERING AP SBTET C16 Syllabus Book PDF Download Branch EEE File Size 1.41 MB File Count 1 File Type PDF Create Date May 10, 2017 Last Updated May 10, 2017 Download Link AP C16 Syllabus Book PDF

V Curves and Inverted V Curves of Synchronous Motor

V Curves and Inverted V Curves of Synchronous Motor 1. V Curves: If the armature current Ia is plotted against excitation or field current for various load conditions, we obtain a set of curves known as V-Curves due to the shape similar to English letter V The VCurve of a synchronous motor shows how the Ia varies with excitation for same input. The VCurves for no. load, 1/2 FL. and FL. are shown in Fig. 1.20 (a) From V-Curves it is observed that, the armature current has large values both for load and high values of excitation (through it is lagging for low excitation and leading higher excitation). In between, it has minimum value corresponding to unity power factor (normal excitation). 2. Inverted V-Curves: If the power factor is plotted against excitation for various load conditions, we obtain a set of curves known as Inverted V-Curves' as shown in Fig. 1.20 (b). The inverted V-Curves of synchronous motor shows how the power factor varies with excitation. From inverted V curves,

AP SBTET C16 Subjects, Subject Codes 1st SEM, 2nd Sem, 3rd Sem, 4th Sem, 5th sem

DIPLOMA IN ELECTRICAL& ELECTRONICS ENGINEERING SCHEME OF INSTRUCTIONS AND EXAMINATIONS (FIRST YEAR) Subject Code Name of the Subject Instruction period / week Total Period / year Scheme of Examination Theory Practical/Tutorial Duration (hours) Sessional Marks End Exam Marks Total Marks THEORY: EE-101 English 3 - 90 3 20 80 100 EE-102 Engineering Mathematics - I 5 - 150 3 20 80 100 EE-103 Engineering Physics 4 - 120 3 20 80 100 EE-104 Engineering Chemistry and Environmental Studies 4 - 120 3 20 80

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