Identify the formula for total three-phase power from the given options 7 O (B) 3V1 sin...
The total instantaneous power in a balanced
three phase circuit is
a. Sinusoidal
b. Dependent on the configuration of the load (wye or delta)
c. 3 times the power in any 1 phase
d. Invariant with time
10) The total instantaneous power in a balanced three phase circuit is a) sinusoidal b) dependent on the configuration of the load (wye or delta) c) 3 times the power in any 1 phase d) invariant with time
sin (A-B) Given which of the following sin(A+B)' does the expression equal? Select one: a. O cot(A) – cot(B) cot(A) + cot(B) 1 + cot(A) cot(B) b. cot(A) + cot(B) sin(A) cos(B) - sin(B) cos(A) sin(A) cos(B) + cos(A) sin(B) sin(A) sin(B) – cos(A) cos(B) d. sin(A) sin(B) + cos(A) cos(B) C. O
The three figures below show a balanced three phase Delta, its Wye equivalent and the single phase equivalent of the three phase Wye. All three representations have a complex load ZALD or ZYLD and a complex line impedance ZLINE Refer to these diagrams when answering questions 1-4. ZLINE Vab= 679 L 30° ZLINE ZALD ZLINE = 2+1 DELTA ZALD= 18+24j2 LINE ZLINE ZLINE ZYLD 7yun WYE WYE ZYLD ZLINE ZLINE Van Complex Load ZYLD Single Line WYE 1) In the...
Please show all work
Consider the following x'=(-7-28 (a) Find a fundamental matrix for the given system of equations. Ψ(t)-(-2e7t sin 14t Ψ(t) =(-2 sin 14t Ψ(t)-(2e-r sin 14t 2e-7 cos 14t e cos 1 esin 14t 2e-7r cos 14t cos 14t esin 14t O -2e-7 cos 14t e cos 1 esin 14t 2e sin 14t e7 e cos 14t2e sin 14t cos 14t Ψ(t)--2e7t sin 14t 2e"cos 14t e cos 14 sin 14t (b) Also find the fundamental matrix...
1. [20 points] An angle modulated signal is given as d(1-8 cos(wl + 2 sin (5000π1)) with carrier frequency 1 MHz (a) Find the power of the modulated signal (b) Find the frequency deviation and the phase deviation (c) Find the bandwidth of the modulated signal (d) Repeat the above parts when the signal is ф(1) : 7 cos(wct + 10 sin( 1300nt) + 12 cos(6000t))
2) The reactive power of the balanced Y-Y connected three phase system depicted below is to be compensated by adding shunt capacitors. The network frequency is known as 50 Hz. The load resistances are R 330ΣΩ and the load inductances are L H. The phasor of the voltage for R phase is given as V 220/2 Volts. a) Find the followings before connecting the power factor compensation capacitors: i) The effective values of the line currents IR, Is, IT, ii)...
please help with part b
Amplitude, Period, and Phase Shift: From Function. Given a function f(x) = a sin(bx + c) or g(x) = a cos(bx + c), you have the following formulas: Amplitude = lal Period = 40 Phase Shift = -9 Determine the amplitude, period, and phase shift for the given functions: (a) f(x) = -6 sin(5x - 2) Amplitude = 6 Period Phase Shift = (b) f(x) - 4 sin(8 - 9xx) Amplitude Period = Phase Shift...
3 Given sin osesan and sin B -7 37 25 <B< 27. Find cos(0 + B).
52. In three-phase power systems, the delivered power a. falls to zero three times per cycle b. falls to zero once per cycle c. never falls to zero d. none of the above 53. The three-phase connection in which one end of each of the windings are connected together is called the connection. a. delta b. wye c. open delta d. open wye 54. In a three phase connection, the voliage meaured direety across one of the winings is the...
Consider the three-phase circuit below. Calculate the total active power, apparent power, S and the power factor, PF points) a reactive power o. 480V ->/V2 W 302 12/A Active power: Reactive power: Apparent power: Power factor: VAR VA % - - 3 332 neutral Also draw a phasor diagram with is, ic and iz