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For a 45-kVA, three-phase, wye-connected, 220- V synchronous machine at rated armature current, the short-circuit load loss (total for three phases) is 1.80 kWat a temperature of 25°C. The dc resistance of the armature at this temperature is 0.0335 per phase. Compute the effective armature ac resistance in per unit and in ohms per phase at 25°C.
Determine the total energy loss: Two capacitors C 1 = 50 μF and C 2 = 100 μF are connected in parallel across 250 V supply. Determine the total energy loss. Figure
The Quality factor is also explained, as Q. So it is a number, which shows the lossness of a circuit. Higher the Q, the lower are the losses. The quality factor is calculated o
Its not essential that a power plant uses only two rectifiers, it depends on the load there at the site and the capacity of the rectifier or SMPS. Assume the load at the site is 12
Normal 0 false false false EN-IN X-NONE X-NONE High Frequency Electronic Ballast
Extrinsic Material In addition to thermally generated carriers, it is possible to create carriers in the semiconductor by purposely introducing impurities into the crystal
What is the difference between “Insulating,” “Isolating,” and “Shielded Winding” transformers? Can Acme Transformers be reverse connected? . Can Transformers develop Three Phase po
Consider the RC circuit of Figure (a) with R = 2 ,C = 5F,and i(t) = I = 10 A (a dc current source). Find the expressions for the capacitor voltage vC(t) and the capacitor current
Q. Give an introductive notes about FET amplifier ? The small signal models for the common source FET can be used for analyzing the three basic FET amplifier configurations: (
Q. What is power gain? Power gain is the ratio of power delivered to the load to power delivered to the amplifier is the power gain. A p =P o /P i =V o I o /V i I s
what is the working of thermal transducers?
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