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Q. Three single-phase 100-kVA, 2400:240-V, 60-Hz transformers (each ofwhich has an equivalent series impedance of 0.045+j0.16 referred to its low-voltage side) are connected to form a three phase, 4160:240-V transformer bank, which in turn is connected to a three-phase feeder with an impedance of 0.5 + j1.5 /phase. When the three-phase transformer bank delivers 250 kWat 240Vand 0.866 lagging power factor, determine:
(a) The transformer winding currents.
(b) The sending-end voltage (line to line) at the source.
Q. Find the rate of information transmission? If the time occupied in transmitting each binary digit is 1 µs, find the rate of information transmission if 1 baud is equal to 1
Q. Write a control word for counter 1 of 8253 / 8254 that selects following options: load least significant byte only, mode 5 of operation and binary counting. Then write an inst
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Q. What is the advantage of a two-stage overloaded RC coupled amplifier over a single stage one? What are it's uses? It is a frequently encountered configuration. Here, the tra
A 15 volts source is applied to a series 150 μH inductor and 169 pF capacitor. The resistance of the inductor plus the connecting wires is 1,6 Ω. Determine the voltage drop and
The worldwide automotive industry is currently witnessing rapid innovative developments day by day. The developments encompass every aspect of the automobile such as materials, man
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High Voltage Distribution System or HVDS Adoption of HVDS (High Voltage Distribution System) through converting existing LVDS to HVDS reduces the technical losses appreciably.
Q. Two balanced, three-phase, wye-connected loads are in parallel across a balanced three-phase supply. Load 1 draws a current of 20 A at 0.8 power factor leading, and load 2 draws
Q. Illustrate the basic use of binary in IT ? The binary system is thus useful in IT because not only any number, but any information, can be represented in terms of only 0s an
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