A single-phase source is applied to a two-terminal, passive circuit with equivalent impedance Z = 3.0 ∠ − 45 ° Ω , measured from the terminals. The source current is i ( t ) = 2 2 cos ( ω t ) kA . Determine the (a) instantaneous power, (b) real power, (c) reactive power delivered by the source, and (d) source power factor.
A single-phase source is applied to a two-terminal, passive circuit with equivalent impedance Z = 3.0 ∠ − 45 ° Ω , measured from the terminals. The source current is i ( t ) = 2 2 cos ( ω t ) kA . Determine the (a) instantaneous power, (b) real power, (c) reactive power delivered by the source, and (d) source power factor.
Solution Summary: The author explains the instantaneous power, the equivalent impedance, and the expression for the polar form.
A single-phase source is applied to a two-terminal, passive circuit with equivalent impedance
Z
=
3.0
∠
−
45
°
Ω
, measured from the terminals. The source current is
i
(
t
)
=
2
2
cos
(
ω
t
)
kA
. Determine the (a) instantaneous power, (b) real power, (c) reactive power delivered by the source, and (d) source power factor.
A3 φ, 50 Hz infinite bus bar is connected to two synchronous generators. Generator 1 has a speed of 300 rpm and generator 2 has 30 poles. Determine:
the speed of generator 2
the number of poles of generator 1
2. Triple Integral Applications
2a.
First step Darw the volume of the solids in the first octant which bounded by xy-plane, yz-plane, plane
x+y=4 and z. = x2+6.
2b.
First draw the region bounded in between z = p and z=1, side by the cylinder r? ≤ 4, and in the first and second octant. Defermine its volume by using cylindrical coordinate system.
2c. Solving Using Spherical Coordinates
2c.
First draw the volume of region which is bounded above by sphere of
x? + y2 + 2? = 81 and below by cone z = x? + y? in the first octant.
first step drawing second step calculation
i need to cal by hand
Armature reaction in an alternator primarily affects:
A: rotor speed
B: terminal voltage per phase
C: frequency of armature current
D: generated voltage per phase
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