Quality Transformational Leadership

ATTENTION FINAL YEAR STUDENTS OF EEE AND                E & I BRANCHES VIMANTRA -2012 NIYANTRA - 2012 9th Annual National Level Technical Paper Contest where you can present practical solutions to real-life challenges using innovative tools like LabVIEW and its toolkits. 4th Annual Autonomous Embedded System Design Contest to encourage you to design and build Embedded systems within your academic curriculum using LabVIEW and its toolkits ...

Objective Questions:Transmission and Distribution Electrical Objective Questions With Answers: 1) In a transmission line the distributed constants are: a) Resistance and Capacitance b) Capacitance and Inductance c) Resistance, Inductance, and Capacitance only d) Resistance, Inductance, Capacitance and Shunt Capacitance 2) If the frequency of the transmission line increases then: a) Line resistance increases b) Line resistance decreases c) Shunt rectance increases d) Shunt reactance decreases 3) The phenomenon in which the conductor surface carries more current compared to core when alternative voltage is applied is a) Corona  b) Skin Effect c) Ferranti Effect d) Lenz's Law 4) On what factors does Skin Effect depends: a) Cross section of the conductors b) Supply Frequency c) Permeability of the conductor material d) all the above 5) The Skin Effect of a conductor reduces with increase in the: a) Cross section of t...

Electrical Machines and Drives - Unit - II Notes UNIT-II DRIVE MOTOR CHARACTERISTICS Torque speed characteristics of a shunt motor: A constant applied voltage V is assumed across the armature. As the armature current Ia, varies the armature drop varies proportionally and one can plot the variation of the induced emf E. The mmf of the field is assumed to be constant. The flux inside the machine however slightly falls due to the effect of saturation and due to armature reaction. The variation of these parameters is shown in Fig. Knowing the value of E and flux one can determine the value of the speed. Also knowing the armature current and the flux, the value of the torque is found out. This procedure is repeated for different values of the assumed armature currents and the values are plotted as in Fig. (a). From these graphs, a graph indicating speed as a function of torque or the torque-speed characteristics is plotted Fig. (b)(i). As seen from the figure the fall in the flux d...