Q) Two impedances Z₁-(10+j5) and Z₂=(8+j6) are connected in parallel across a voltage of V=200+j0. Calculate the circuit current, power factor and reactive power.
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- An impedance ZL = (11.5 + j10) ohms is connected in parallel with an impedance ZC = (8 – j20)ohms. Calculate: a) the conductance, susceptance, and admittance of each branch; b) the totalconductance, susceptance, and admittance; c) the total current in polar form if the sourcevoltage is used as the reference; d) the total real, reactive, and apparent powers; e) the overallpower factor.I really need help understanding three phase systems. What can you tell me to make it more clear? When can a system be analyzed in its single-phase equivalent? Is it better/easier to have the load in the same configuration as the source? is power factor alwasy the cosing of the angle of the total impedance? Thank you1. Solve for the equivalent impedance and admittance seen at the source. Solve for is(t). 2. A load Z draws 12 kVA at a power factor of 0.856 lagging from a 120-Vrms sinusoidal source. Calculate: (a) the average and reactive powers delivered to the load, and (b) the peak current.
- The load impedance ZL for the circuit shown is adjusted until maximum average power is delivered to ZL.1. a) Find the maximum average power delivered to ZL.2. b) What percentage of the total power developed in the circuit isdelivered to ZL?(a) Calculate the equivalent impedance of the circuit given below, if the source voltage is v(t) = 60cos1000t (b) Calculate the source current flowing in the circuit (c) Draw the phasor diagram of the current and input voltageFind the following: the power drawn by the 100ohm variable resistor If the variable resistor is set to 200-ohms, instead of 100-ohms, What is the power drawn by the 200-ohms resistor? total current of the system Is the circuit inductive, capacitive, or neither (resistive)? NOTE: Polar form for Voltage & Current. Rectangular form for Impedance
- Circuit elements with an inductance of 200 mH, a capacity of 50 μF and a resistance of 10 Ω are connected in parallel. If the average value of 198 V sinusoidal AC voltage is applied to this system, find the line current, impedance and phase angle of the circuit. (Take the frequency as 60 Hz.)Consider the current i(t)= 30sin(100t+90o) mA. is applied the circuit given below. a) Find and draw phasor equivalent of the circuit b) Find Iload and Vload phasors and and draw them on the real-imaginary axis. Find iload(t) and vload(t) via inverse phasor, comment phase angles c)Find active, reactive and complex power (P,Q,S) absorbed by the load. please fastThe three-phase balanced load system shown in the figure will be analyzed in a continuous sinusoidal state.a) Find the total active and reactive power consumed in the load, with vR (t) = Cost Volt, Z∆ = α + βj,Find the phasor values of Ir, Is and It line currents.b) C capacities are connected to the circuit in order to provide compensation, C capacityCalculate what the value should be. α=3, β=8
- A series circuit of RLC with following parameters, R=15 ohm, L=20 m H & C=100 micro Farad. VT=169.7 sin (337t-30) Volt. Find the following: Zt, , It, Voltage across each element, Power factor, apparent power, real or average power and reactive power and the total phasor diagram and power phasor diagramAn impedance ZL = (11.5 + j10) ohms is connected in parallel with an impedance ZC = (8 – j20) ohms. The circuit has a 120 V 60Hz source. Calculate: a) the conductance, susceptance, and admittance of each branch; b) the total conductance, susceptance, and admittance; c) the total current in polar form if the source voltage is used as the reference; d) the total real, reactive, and apparent powers; e) the overall power factor.Find the complex power for the following: Vrms= 200 ∠ 30∘ V, Z= 40+ j60 Ω in addition form