A cylindrical rotor, synchronous generator has an internal voltage of 1.6 per unit (pu) and a terminal voltage of 1.0 pu. If the generator delivers 0.6 pu power to a network, determine the following (the generator synchronous reactance is 1.6 pu): a. The initial torque angle (8) of the generator. b. If a fault occurs so that the output power of the generator instantaneously goes to zero (ex. short circuit), what will the generator shaft speed do and why? c. If a fault occurs so that the output power of the generator is zero, by what rotor angle must the fault be cleared in order to maintain stable operation (include diagram)?

Introductory Circuit Analysis (13th Edition)
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1) A cylindrical rotor, synchronous generator has an internal voltage of 1.6 per unit (pu) and a
terminal voltage of 1.0 pu. If the generator delivers 0.6 pu power to a network, determine
the following (the generator synchronous reactance is 1.6 pu):
a. The initial torque angle (8) of the generator.
b. If a fault occurs so that the output power of the generator instantaneously goes
to zero (ex. short circuit), what will the generator shaft speed do and why?
If a fault occurs so that the output power of the generator is zero, by what rotor
angle must the fault be cleared in order to maintain stable operation (include
diagram)?
d. If the fault is cleared at the angle determined in part c), to what maximum angle
C.
will the rotor shaft travel.
Transcribed Image Text:1) A cylindrical rotor, synchronous generator has an internal voltage of 1.6 per unit (pu) and a terminal voltage of 1.0 pu. If the generator delivers 0.6 pu power to a network, determine the following (the generator synchronous reactance is 1.6 pu): a. The initial torque angle (8) of the generator. b. If a fault occurs so that the output power of the generator instantaneously goes to zero (ex. short circuit), what will the generator shaft speed do and why? If a fault occurs so that the output power of the generator is zero, by what rotor angle must the fault be cleared in order to maintain stable operation (include diagram)? d. If the fault is cleared at the angle determined in part c), to what maximum angle C. will the rotor shaft travel.
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