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A 3 phase 400 volt(line to line) wye connected synchronous motor has Xs= 1 ohm per phase and a negligible armature resistance. The field current is so adjusted that the internal(induced) voltage is 270volts per phase, while the motor draws 40 kw power from the source. Calculate the (a) power factor of the motor, and (b) reactive power supplied by the motor to the source.
A 500 MVA, 33kv, three phase steam turbine generator has a synchronous reactance of 1.6 p.u. It delivers a rated output at 0.8 power factor lagging. Calculate (a) the synchronous reactance per phase, (b) rated load current of the machine, and (c) internal voltage drop and output voltage.
A synchronous motor has the following parameters per phase. E=2kv, Eo=5kv, X2=3ohms, and I=700amps. Draw the phasor diagram and determine (a) power angle delta, (b) active power(3phase), (c) reactive power(3phase), (d) power factor of the motor. If the load is removed suddenly, calculate (e) the new power angle and (f) new reactive power(3phase).
Name the Effects of electric current There are three Effects of electric current:- A) magnetic effect B) chemical effect C) heating effect
A single phase line has an impedance of 8.4 + j11.2 ?. The line feeds a load consisting of a resistor and an inductor connected in parallel as shown in Figure 1. The load is absorb
Q. The voltage across a parallel combination of a 100- resistor and a 0.1-µF capacitor is 10 cos(5000t +30°) V. Determine the admittance of the parallel combination and find the c
Memory location 2000H has the word 5000H stored in it. What does each location contain after DEC WORD PTR [2000H].
Low Investments in Transmission and Distribution System The investment on T&D system in our country has commonly been lower than that on generation. It is hugely believed in
what is FPGA ..
Sketch the Fermi-Dirac distribution function, F(E), alongside the energy band diagram for an n-type semiconductor, indicating the position of the Fermi level, EF, and the donor lev
Q. Classify Feedback control systems according to purpose of the system? • Position control systems. Here the output position, such as the shaft position on a motor, exactly fo
bias compensation techniques for ac and dc characteristics
To determine the largest of n numbers stored into t memory, write a program in assembly language. A program of the largest of n numbers stored into t memory in assembly languag
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