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Q. Three dc generators are operating in parallel with excitations such that their external characteristics are almost straight lines over the working range with the following pairs of data points:
Compute the terminal voltage and current of each generator.
(a) When the total load current is 4350 A.
(b) When the load is completely removed with out change of excitation currents.
Q. Consider an elementary three-phase, four-pole alternator with a wye-connected armature winding, consisting of full-pitch concentrated coils. Each phase coil has three turns,
A balanced star-connected load is connected across a three phase 450V 50 Hz AC supply. Each load element has an impedance of 5+j12 Ω. Calculate: (i) The power factor of the
the p.u. reactance of a 25 MVA, 13.2 kV alternator 0.5 p.u. On a base of 50 MVA and 13.8 KV the p.u. value shall be
Use PSpice to solve for the amplitude and phase of the current and the voltage across the inductor in the circuit shown in Figure(a).
RRC Rotate Accumulator Right Instruction This instruction also rotates the contents of the accumulator toward right by one bit. The D 7 bit moves to D 5 position a
construction and its working
The winding of an electromagnet has an inductance of 3H and a resistance of 15?. When it is connected to a 120 V d.c. supply, Determine:
100 words
Q. Explain polyphase induction motor? The polyphase induction motor operates with polyphase alternating current applied to the primary winding, usually located on the stator of
Define Quantization Error? Quantization by its nature introduces errors. There are two major sources of errors. One is sampling, that just takes the amplitude of the signal at
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