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Q-5 a) 70 Sin (2000t + 70°) can be written in phasor form as 70 L 70°. (Tor F) b) In 3- phase system, active power for “
Posted: Fri May 20, 2022 11:13 pm
by answerhappygod
- Q 5 A 70 Sin 2000t 70 Can Be Written In Phasor Form As 70 L 70 Tor F B In 3 Phase System Active Power For 1 (176.09 KiB) Viewed 14 times
Q-5 a) 70 Sin (2000t + 70°) can be written in phasor form as 70 L 70°. (Tor F) b) In 3- phase system, active power for “Delta" and "Star" connections are same. (Tor F) c) Voltage regulation defines, how the input voltage will change if we change the load. (Tor F) d) 3-phase is essentially used for commercial purposes where uninterrupted supply is required. (Tor F) 1 e) Phase sequence is defined as the order or sequence in which the alternating quantities attain their negative peak values. (Tor F) f) A and Y connection impedances are related as: ZA = 3 ZY (Tor F) g) In synchronous machines, Stator is the stationary part and has field winding on it while Rotor is the part in motion and has armature winding on it. (Tor F) h) An infinite bus supplies power at constant voltage and frequency and is represented by an ideal voltage source. (Tor F) i) In salient pole machines, air-gap between stator and rotor is non-uniform. (Tor F) j) In an autotransformer, in addition to induction coupling between the windings, electric connection between the two windings also exists. (Tor F)