9430°N are delta-connected to a balanced three-phase ae conductors with impedance Z, = j10 per line. Find e source.
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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×FCGiven the circuit below. a A 220°n U,07t 100 -V 3-ø source b 5260°n B 'IcA Iec 22-30°n Determine the phasor line current la in the three-system shown in the figure (both magnitude and angle). Explain why the line current Ic is unaffected by 220°N the impedance. Calculate the phasor line current Ia in the three-system shown in the figure (both magnitude and angle).The 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 W
- Impedances Z2 and Z3 in parallel are in series with impedance Z1 across a 100 V, 50 Hz ac supply. Z1 =6.25 + j1.25 ohm; Z2 = 5+ j0 ohm and Z3 = 5-jXc ohm. Determine the value of capacitance of Xc such that the total curent of the circuit will be in phase with the total voltage. When is then the circuit current and power.What is the total real power and total reactive power consumed by the three-phase load (regardless if wye or delta)?Draw a 3-phase wye-connected generator with transmission lines connected to a 3-phase delta-connected load. Assume the lines connecting them have an inductance of j5 per phase. The generated voltages are 120 Vrms with phase 'a' having a phase angle of 0°. The loads are 10 Ohm resistors per phase. When drawing, make sure to label all 3 phases with voltage phasors, line inductances, and load resistances.
- 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 Z₂In 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?Impedances Z2 and Z3 in parallel are supply. Z1 =6.25 + j 1.25 ohm; Z2 = 5 + j0 ohm and Z3 = 5 – jXc ohm. Determine the value of capacitance of Xc such that the total current of the circuit will be in phase with the total voltage. When is then the circuit current and power. series with impedance Z1 across a 100 V, 50 Hz ac
- Can you explain the theory behind why the inductor in phase R and phase B become in series when phase Y is disconnected? And why do the voltage of phase R and phase B become to be equal to line voltage of 400V if phase Y and Neutral are short circuited?Two impedances are connected in parallel across a 220-volt source. If Z1= 4 cis (30) and Z2 = 5 cis (60) ohms. Find the equivalent admittance ( Siemen ) of the circuit. O 0.435 cis(- 43.3) O 2.3 cis (43.3) O 0.835 cis (-53.3) O 0.835cis (53.3)Three Impedances each of (9 - j18)N are connected in mesh across a three-phase 415V ac supply. Determine the phase current, line current, active power, reactive power drawn from supply. Also draw the Phasor diagram for the mesh connection and marks the Line current ,phase current line voltage and phase angle between phase current and pahse voltage. phase current (Ip) Line current real power reactive power