EXAMIANS
A DC shunt generator has an induced voltage of 220 V on open circuit. When the machine is on load the terminal voltage is 200 V. Find the load current if the field resistance is 100 Ω and armature resistance is 0.2 Ω.
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Consider the following statements and choose the correct option.<br/>Statement 1: The speed regulation of a synchronous motor is always unity.<br/>Statement 2: In a synchronous motor, at no-load condition, and with normal excitation the armature current drawn by a synchronous motor is in phase with applied voltage.
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In a series RLC circuit, the supply voltage is 230 V at 50 Hz. The resonant current is 2 A at the resonant frequency of 50 Hz. Under the resonant condition, the voltage across the capacitor is measured to be equal to 460 V. What are the values of L and C?
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સાબરમતી: અમદાવાદ:: મૂસી:
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The purpose of ____ is to check the ability of the circuit breaker to withstand the overvoltages at power frequency as well as undesired value of voltage during lightning and other discharge phenomenon.
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A 50 Hz synchronous generator is connected to an infinite bus through a line. The p.u. reactances of generator and the line are j0.4 p.u. and j0.2 p.u. respectively. The generator no load voltage is 1.1 p.u. and that of infinite bus is 1.0 p.u. The inertia constant of the generator is 4 MW-sec/MVA. Determine the frequency of natural oscillations if the generator is loaded to 60% of its maximum power transfer capacity and small perturbation in power is given.
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If the power supplied by current source shown in figure is double of that supplied by the voltage source, then the value of 'R' is
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In public sector, what is the full form of "LIC"?
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The process of peeling of rocks into layers is called
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If the velocity of wind is doubled then the power output will
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