I. Fill in the blanks. Write your answer in the space provided. 1. What is the numerical equivalent of 120 electrical degrees of a three-phase electrical machines 2. It is the other term used to describe AC generator. 3. Increase the speed of rotor to increase frequency, while increasing the field excitation will increase the 4. It is an electrical instruments used to view the waveform of DC or AC voltages. 5. In a delta-connected three-phase generator, its line voltage is equal to

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I. Fill in the blanks. Write your answer in the space provided.
1. What is the numerical equivalent of 120 electrical degrees of a
three-phase electrical machines
2. It is the other term used to describe AC generator.
3. Increase the speed of rotor to increase frequency, while increasing
the field excitation will increase the
4. It is an electrical instruments used to view the waveform of DC
or AC voltages.
5. In a delta-connected three-phase generator, its line voltage is
equal to
II. Problem solving. Solve the following problems.
1. Calculate the effective voltage of a wye-connected alternator per phase, given
the following values: Ø = 2.01 lines, f = 50 hz, kp = 0.98, ka = 0.97 and
T = 250 turns per phase. Note: 1Wb= 100,000,000 lines
2. Compute the root-mean-square value of voltage in a delta-connected alternator
with 200 volts per phase.
Transcribed Image Text:I. Fill in the blanks. Write your answer in the space provided. 1. What is the numerical equivalent of 120 electrical degrees of a three-phase electrical machines 2. It is the other term used to describe AC generator. 3. Increase the speed of rotor to increase frequency, while increasing the field excitation will increase the 4. It is an electrical instruments used to view the waveform of DC or AC voltages. 5. In a delta-connected three-phase generator, its line voltage is equal to II. Problem solving. Solve the following problems. 1. Calculate the effective voltage of a wye-connected alternator per phase, given the following values: Ø = 2.01 lines, f = 50 hz, kp = 0.98, ka = 0.97 and T = 250 turns per phase. Note: 1Wb= 100,000,000 lines 2. Compute the root-mean-square value of voltage in a delta-connected alternator with 200 volts per phase.
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