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Q. 10-kVA, 4800:240-V, 60-Hz, single-phase transformer has an equivalent series impedance of 120 + j300 referred to the primary high-voltage side. The exciting current of the transformer may be neglected.
(a) Find the equivalent series impedance referred to the secondary low-voltage side.
(b) Calculate the voltage at the primary high voltage terminals if the secondary supplies rated secondary current at 230 V and unity power factor.
(a) Give three different ways how electro-magnetic interference can be reduced in twisted pairs based transmission. (b) Noise are unwanted signals affecting transmission. Lis
Explane pn junction
Theoretical calculations The characteristics of the d.c. machine you will be investigating are given on the last page of this part. Use 200V DC supply for both armature and fie
Q. Two 1150:115-V transformers are to be inter connected for (a) 2300:230-V operation, and (b) 1150:230-V operation. Show the interconnections and appropriate polarity markings.
A three-phase, 400-V, wye-connected induction motor takes the full-load current at 45 V with the rotor blocked. The full-load slip is 4%. Calculate the tappings k on a three-phase
OUT Output Instruction This instruction is used send data byte stored in the accumulator to the output port whose address specified in the instruction. The instruction
Q. A balanced delta-connected load has a per-phase impedance of 45 60° . It is connected to a three-phase, 208-V, 60-Hz supply by a three- phase feeder that has a per-phase impeda
Design combinational-sequential electronic logic gate circuit for a car wash....
What is a control word? It is a word kept in a register (control register) used to control the operation of a program digital device.
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