A 1200 kW, 550 V DC generator has a terminal voltage of 500 V at
rated current. It is being driven at a speed of 400 rpm. The
armature resistance is 0.0009 Ω.
a. Determine the armature voltage.
b. Determine the developed torque.
c. Determine the armature copper loss.
-Draw Separately excited Dc Generator
-Draw the graph for external Characteristic for a DC
Generator.
-Draw the Shunt Generator.
-Draw the Series Generator.
-Draw the Compound Generator.
-Draw the power flow Diagram for all of the circuit mentioned
above.
-Draw the Torque Speed of the Shurt Motors.
-Explain the Back EMF?
-Series Motor why the field is in series with the
winding?
-why should Dc Motor, should never be started at its rated
voltage?
-Explain the principle of a PM...
Define the voltage regulation of an alternator. Is it good to have
low voltage regulation? Justify your answer. Can the voltage
regulation be negative? If the answer is YES, when it can happen?
If the answer is NO why it cannot be?
An ac generator has a frequency of 7.5 kHz and a voltage of 35
V. When an inductor is connected between the terminals of this
generator, the current in the inductor is 30 mA. What is the
inductance of the inductor?
How do I set up a basic DC generator circuit?
I have a tiny generator that I need to use to harvest energy and
power an LED. The first way I set up the circuit didn't work. I'm
thinking it should be done like this:
red cable from generator -> resistor -> long end of LED
-> short end of LED -> black wire to generator
Note that the prof calls it a motor. I'm not sure if this would...
A generator with an rms voltage of 130 V is connected in series
to a resistor 3.65 kΩ and a capacitor 3.00 μF .
1. At what frequency must this circuit be operated for the
current to lead the voltage by 29.0 ∘? (Answer Hz)
2. Using the frequency found in part A, find the average power
consumed by this circuit. (Answer in W)
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A 1.6-m wire is wound into a coil with a radius of 3.2 cm.
1....
(a)
In DC motor, quadrant of operation can be defined by the
armature voltage and
current of the motor. By using an appropriate diagram, briefly
explain the
definition of all four quadrant of operation based on armature
voltage and current.
(b)
A chopper is used to control speed of 45.36 kW, 1750 rpm, 240 V,
189 A
permanent magnet DC motor with 0.01 Ω armature resistance. This
chopper-fed
DC motor is able to operate in both motoring and braking
mode...