A separately excited DC shunt generator produces a no-load voltage of 150 Vdc at 1200 RPM....
A separately excited DC shunt generator produces a no-load voltage of 150 Vdc at 1200 RPM. If the armature resistance is 3 Ohms, calculate the output voltage under the following conditions: (Note all calculations for each problem are to be performed from the base values given above).
a) The speed is reduced to 875 RPM. Vout = __________________
b) The field current is increased by 22% (assume a linear field current/flux relationship). Vout = __________________
c) The speed is increased to 1738 RPM Vout = __________________
d) The field current is reduced by 12% and the speed is increased to 1600 RPM Vout = __________________
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A separately excited DC shunt generator produces a no-load
voltage of 150 Vdc at 1200 RPM....
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1) A separately excited shunt generator develops 400V at 1900 RPM. a) what will the voltage be at 1200 RPM b) what will be the voltage if the field is reduced by 8% 2) 16.5 HP is needed to drive a generator rated at 12.3 KW, 230V, 50A at 1680 RPM. Ra=.32 ohm. Determine: a) efficiency b) torque ( use T= 9.55 P/n) c) heat loss d) armature voltage 3) At full load a self excited shunt generator delivers 24KW,...
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QUESTION 1 A) (10 marks) A 10 kW, 250 V DC self-excited shunt generator, with an...
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LAB MANUAL LAB EXPERIMENT - 04: LOAD CHARACTERISTICS OF SEPARATELY EXCITED DC GE ATELY EXCITED DC...
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A second separately excited DC generator has the same electrical parameters as the generator in part...
A second separately excited DC generator has the same electrical
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A second separately excited DC generator has the same electrical
parameters as the generator in part (a) first but does not have
compensating windings. The full-load demagnetising armature
reaction is equivalent to 500 Ampere-turns. (i) With Radj = 63Ω and
the generator is driven at 1600rpm, what is the no-load terminal
voltage? (ii) What would be the output terminal voltage if 364A
were drawn from the armature at 1600rpm?
Q2. (a) Fig. Q20) shows a separately excited DC generator with...
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