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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).
Q. Draw and explain the working of a negative clamping circuit. The clamping network shown above is a negative clamping circuit that will clamp the input signal to a negative d
1. Introduction: Theory: Amplitude is defined as the magnitude of the change in the oscillating variable with each oscillation within an oscillating system. It is calculated as
explain the operation of a detector probe
Q. The current sources in Figure are given to be I A = 30 A and I B = 50 A. For the values of R 1 = 20 ,R2 = 40 , and R3 = 80 , find: (a) The voltage V. (b) The current
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Electric field strength: When two metal plates are charged and divided in a certain distance, a potential difference will exists among the plates. A force was also generated
Simplify using k-map f(A,B,C,D)=?M(4,6,10,12,13,15) Using behavioral modeling in xilinx VHDL
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Outdoor Termination for Cables - Measures for Improving Connection Outdoor terminations for paper insulated or PILCA cables were generally used without much of a problem. With
Q. An inverting amplifier is designed with three inputs, v 1 , v 2 , and v 3 , as shown in Figure. Determine the output voltage. Then indicate how the circuit may be modified to pe
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