2. Calculate the phase and line currents in the three-phase circuit given below, where Va = 202 20° V. Vb = 202 -120° V, and Vc = 202 < 120° V. A a www ell Vc b Va 30 Ω J1002 C Vb 30 Ω j102 www B C www-ele 30 Ω j10Q
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- A balanced load is connected in star across a 3 phasec415V 50Hz supply. The load consists of a coil of resistance 25 ohms and inducrance 0.5 henry in paeallel with a purw resistance of 28 ohms and a pure capaciror of 60microfarads capacitance ,in each branch. Calculate a. The line currents? Need full working and answer has to be 9.3A Formola for inductance XL= 2×3.142FL FORMOLA FOR CAPACITOR XC= 1/2×3.142×FCThe phase b voltage and the phase b current of a balance three-phase system are V = 220 sin (wt + 210°) and I = 10 sin (wt-180°). * A. 5256.44 W B. 5514.38 W C. 5715.76 W D. 6049.22 WDetermine the line currents in the three-phase circuit of the figure given below, where Van = 450 / 0° V, Vbn=450 Z-120° V, and Vcn=450 120° V. Please report your answer so the magnitude is positive and all angles are in the range of negative 180 degrees to positive 180 degrees. Vcn Van a n Vbn Ia Ih I 6-j8Q2 A 6-j8Q2 N 6-j8Q2
- In the circuit in the figure; L1 load draws 15 kVA with lagging power factor 0.6. The L2 load draws 6 kVA with a leading power factor of 0.8. According to this; What is the value of the complex power for the L2 load?5. The figure below shows two star connected loads with three phase power. The voltage source is 120Z0°. The loads are Z₁ = 10 + j4 № and Z₂ = 2 +j3 №. The cables are negligible. Calculate: a) the line and phase current. b) the real power from the source. c) the reactive power of the circuit. Is V N Z₁ Z₁ Z₁ Z₂ Z₂ N N Z₂From the given circuit, take V₁ = 240, Z₁ = 20-j3 ohms. Find the phase currents and line currents. Determine also the total complex power from the source. A LAB VL/120⁰ V V₁/0° V 15 L VL-120° V ZL B IBC ZL 21 W ICA C
- From the given circuit, take V₁ = 240, Z₁ = 20 - j3 ohms. Find the phase currents and line ZL currents. Determine also the total complex power from the source. A IAB VL/120° V VL-120⁰ V V₁Z0° V ZL B Ic IBC ZL ZL ICA CA balanced load is connected in star across a 3 phasec415V 50Hz supply. The load consists of a coil of resistance 25 ohms and inducrance 0.5 henry in paeallel with a purw resistance of 28 ohms and a pure capaciror of 60microfarads capacitance ,in each branch. Calculate a. The line currents The answer has to be 9.3AThe phase voltages across a certain load are given as: Va = 176 – j132 volts Vb = -128 - j96 volts Vc = -160 + j100 volts Va1 = 163.24-j35.10 / 166.97L-12.135 Va2 = 50.1-j53.9 / 73.59L-47.09 Va0 = -37.34-j42.67 / 56.70L-131.19 Compute for positive, negative, and zero sequence components of voltage.
- The figure shows a 3-phase bala Time left 1:06:30 200 /00 Vrms. sequence electrical system. Vcn Vbn %3D al Balanced (-) sequence 100 so a 2000 Vms Select one: O a. 200 /-120 Vrms O b. 200 v2 /0 Vrms O C. 200 /0 Vrms O d. 200 v2/-120 Vrms e. 200/120 VrmsThe sequence component of phase a currents are: I ao = 0 A;I a1 = 10 + j5: I a2 =8 – j5. Determine current in phase c.For this kind a problem, how do you know how the voltage source is configured ( wye or delta). The problem start getting the phase current for phase 1 and 2 , but do we have to pretend that voltage source to delta load is connected like y-delta to convert the voltage to delta source? Or how does it work?