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Voltages source inverter ( VSI)
A voltage source inverter is a constant voltage source which is having negligible impedance. In these inverters the amplitude of output voltage does not depend on the load but the wave form of load current and its magnitude depends upon the nature of load impedance. The output voltage of VSI can be controlled by changing the power factor of the circuit the frequency of the inverter and the pulse width.
Q. Explain the working principle of a Q meter. Also explain the factors that cause errors during a Q factor measurement. Ans. Working Principle of Q Meter: the q meter is
Q. Consider the bridge circuit given in Figure with R 1 = 24 k, R 2 = 48 k, and R 3 = 10 k. Find R when the bridge is balanced with V = 0.
Distribution Loss Reduction and Efficiency Improvement You are well aware of the fact in which all energy supplied to a distribution utility does not reach the end consumers.
operation of Shaded-pole motors
(i) Sketch a fully-labelled electro-pneumatic circuit showing your actuators in the START position and employ metered out speed control with mono-stable 5/2 DCV's having solenoid a
different types of probe
Define Causal System - Discrete Time Systems? A causal system is one which produces an output only when there is an input. All physical systems are causal. In general, a causal
Q. Determine the open-circuit output voltage v o of the system shown in Figure as a function of the input voltage v i .
Interpoles and Compensating Windings: The most generally used method for aiding commutation is by providing the machine with inter poles, also known as commutating poles, or si
Q. In an RLC series circuit excited by a voltage source v(t), for R = 10 , L = 1 H, and C = 0.1F, determine v(t) if the capacitor voltage vC(t) = 5e -10t V.
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