Concept explainers
Consider a load impedance of
(a) Develop an expression for the reactive power Q in terms of
(b) Let the instantaneous current be
(c) Comment on the average real power P supplied to the inductor and the instantaneous power supplied.
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EBK POWER SYSTEM ANALYSIS AND DESIGN
- Unless given, use the: POLAR FORM for voltage and current, RECTANGULAR FORM for impedance. (30pts) Consider the following circuit, supplied by a 500mARMS current source with a 30° phase shift (i.e. Isource=500230⁰ mA). R1 100 Q L1 320 mH C1 16 μF a. What is the total impedance of the circuit? b. What is the voltage drop on the 100-ohm resistor, R1? c. Is the circuit inductive, capacitive, or neither (resistive)? d. Draw the phasor diagram of the voltage and current at R1. e. What is the total power (apparent) delivered by the current source? f. Draw the phasor diagram of the voltage and current at the source. 11 sine 50 Hz ellarrow_forwardUnless given, use the: POLAR FORM for voltage and current, RECTANGULAR FORM for impedance. Consider the following circuit, supplied by a 500mARMS current source with a 30° phase shift (i.e. Isource=500230⁰ mA). R1 L1 320 mH C1 16 μF a. What is the total impedance of the circuit? b. What is the voltage drop on the 100-ohm resistor, R1? c. Is the circuit inductive, capacitive, or neither (resistive)? d. Draw the phasor diagram of the voltage and current at R1. e. What is the total power (apparent) delivered by the current source? f. Draw the phasor diagram of the voltage and current at the source. 11 sine 50 Hz 100 ellarrow_forwardAn electric load consists of a resistor, a capacitor and an inductor connected in series. The total impedance of the load is connected across 240430° V, compute the following: a. The load impedance b. The source current in polar form c. The phase shift between the current and the voltage d. The power factor of the load e. The real power of the circuit f. The reactive power of the circuit 8Ω 20 mH 50µF ↑ 240430° w = 314rad/sarrow_forward
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