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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.
Explain in detail the operation of 8255 in mode1 taking suitable example. In mode1, Ports A and B are programmed as input or output ports and Port C is used for handshaking.
(a) Describe the four functions of the physical layer in the Internet Model. (b) (i) With the help of a diagram describe the main stages involved in the digitization of a
Q. Data transmission in Bus Topology ? Bus Topology:This topology shares a single path or link way among all users. This common single path way is called bus. In this topology,
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Draw a relay construction diagram and briefly explain the operation of a relay. Define the terms normally open and normally closed. Define the terms Set and Reset for relays.
Q. What do you know about Input Impedance? Input Impedance : Amplifiers will be quoted as having a specific input impedance. The sort of load it will place on preceding equipm
Ask question #Discuss the role of load factor on the cost of electrical energy 100 words accepted#
The electric roadway system shall utilize solar energy as the main power source. The electric roadway system shall negotiate with the power utility on backup power supply.
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