Jharkhand Polytechnic 5th Semester Question Bank Electrical and Electronics Engineering, Electrical Engineering
Traction
Chapter 1: Three phase induction motor 1.1 construction of three phase induction motor 1.2 production of of rotating magnetic field 1.3 principle of working / operation 1.4 concept of slip 1.5 equation of rotor induced EMF current frequency resistance and impedance under study and running condition 1.6 torque equation of three phase induction motor 1.7 starting and running torque of square cage and slip ring induction motor 1.8 condition of for maximum and starting torque 1.9 torque slip characteristics of 3 phase induction motor 1.10 effect of change in rotor circuit resistance dance on torque slip characteristics 1.11 effect of change in supply voltage on torque slip characteristics 1.12 measurement of slip by techno metre method comparing torque frequency and starter frequency 1.13 speed control of 3 phase induction motor by a pole changing method frequency control method by a state voltage control rotor resistance control 1.14 comparison between squirrel cage and slip ring induction motor 1.15 application of 3 phase induction motor 1.16 power stage of 3 phase induction motor numericals on all over 1.17 double cage induction motor construction characteristics of outer inner cage and combined characteristics industrial application 1.18 induction motor as a general generalized transformer 1.19 vector diagram one of induction motor 1.20 equivalent circuit of three phase induction motor 1.21 starting of 3 phase induction motor numericals starter resistance starter star delta starter auto transformer starter rotor resistance starter
Chapter 2: Three phase alternator 2.1 definition and construction of 3 phase alternator winding rotor smooth cylindrical and project type projecting type two point two derivation of EMF equation of alternator which includes choding factor distribution factor 2.3 factors affecting the terminal voltage of alternator amateur resistive drop leakage register drop MHA registration at various power factor and concept of spring synchronous impedance 42.2 2.4 regulation of 3 phase alternator by synchronous impedance method MMF method
Chapter 3: Synchronous motor 3.1 principle of working / operation 3.2 synchronous motor on load with constant excitation 3.3 effect of excitation at constant load 3.4 and inverted V curve 3.5 hunting and phase swinging 3.6 application 3.7 starting of synchronous motor 3.8 comparison between induction motor and synchronous motor
Chapter 4: Single phase motor 4.1 double field revolving theory 4.2 types of single phase induction motor 4.3 split phasing principle of starting resistance star induction run capacitor start induction run capacitor start register run valu capacitor application motor 4.4 saved pole induction motor 4.5 application
Chapter 5: Special machines 5.1 induction generator principle of operation construction and application 5.2 linear induction motor principle of operation construction of application 5.3 AC series motor principle of operation construction and application
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