In a certain three-wire Y-connected generator, the phase voltages are 2 kV. The magnitudes of the line voltages are
Answer: Option D
Explanation:
Line voltage = (Root 3)* (phase voltage).
= 1.732 * 2000 =3, 464volts.
In a Δ-connected source driving a Δ-connected load, the
In delta only line and phase currents are different but voltage in line and phase are equal.
In a three-phase system, when the loads are perfectly balanced, the neutral current is
Answer: Option A
At balanced state sum of currents of all phase ie- Ia+Ib+Ic=0 these currents are flowing through neutral so that its value is zero.
In a three-phase system, the voltages are separated by
Answer: Option C
One rotation of the waveform is 360 deg. So to balance each phase are displaced at 120 deg.
That's; 3 phase 360/3 = 120.
In a series RLC circuit, the current is minimum at resonance.
Answer: Option B
