Three Phase Systems In Power Applications - Study Mode
[#11] In a Y-connected source feeding a ∆-connected load,
Correct Answer
(C) Each phase of the load has the full line voltage across it
[#12] The stator is the rotating assembly in a generator or motor.
Correct Answer
(B) False
Explanation
Solution: The correct answer is Option B: False Here's why: * The stator is the stationary (non-rotating) part of a generator or motor. * The rotor is the rotating part. Think of it as the part that spins. * So, the statement that the stator is the rotating assembly is incorrect.
[#13] In a Y-connected circuit, between each line voltage and the nearest phase voltage, there is a phase angle of
Correct Answer
(B) 30°
[#14] An alternator is an electromechanical ac generator.
Correct Answer
(A) True
Explanation
Solution: An alternator is indeed an electromechanical AC generator. It operates on the principle of electromagnetic induction to convert mechanical energy into electrical energy in the form of alternating current (AC). While someone may say "False" for various reasons, the generally accepted understanding in the field of electrical engineering is that an alternator is a type of AC generator.
[#15] In a ∆-connected generator, there is a 120° difference between each line current and the nearest phase current.
Correct Answer
(B) False