Recent content by eehelp150

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    How to maximum apparent power through a linear transformer?

    14.4ohms L=0.0764H correct? The instructions were: Gradually increase the load from the original value. You may increase either P, or Q, or both. Monitoring the load voltage.Your objective is to maximize the apparent power (|S|=sqrt(P2 +Q2 ) of the load while ensuring that the load RMS voltage...
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    How to maximum apparent power through a linear transformer?

    How would I get load resistance? This is what I am provided with:
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    How to maximum apparent power through a linear transformer?

    I believe so. The instructions seem to hint that we are supposed to try random values of P and Q (real/reactive) until we find a maximum within 114<V2rms<126. Is there a way to calculate the maximum apparent power by hand instead of trying out random values?
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    How to maximum apparent power through a linear transformer?

    Do you mean Load 2 in the picture? If yes: Nominal Voltage: 120 Nominal Freq: 60 Active Power (W): 1000 Inductive Reactive Power (Q): 500 I think we were supposed to change Active/Reactive power in the parameters to see how "high" we can get while keeping in the 114<V2<126 range for load voltage...
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    How to maximum apparent power through a linear transformer?

    Homework Statement given a linear transformer rated for 50kVA, 11000V/120V How do I find the maximum apparent power? The prompt is to maximum apparent power while keeping the Load RMS voltage between 114V and 126V. Vsource has a peak voltage of 11000*sqrt(2). The circuit looks something like...
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    AC power - Simulation and hand calculated values different

    I am plugging in the original total real power and total reactive power. I cannot get the original value of capacitance. Edit: I used 576-430.8i instead and got the original capacitance value. How do I solve for C if I don't have a "defined" real power to solve for? Do I simply divide that by 2...
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    AC power - Simulation and hand calculated values different

    Ok, thanks! Going back to this: ##Z = R1 + ZL + \frac{R2*ZC}{R2+ZC}## Total complex power would be V^2/Z, where Z is the above right? How would I solve this using algebra?
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    AC power - Simulation and hand calculated values different

    That works! Would there be any way to calculate a different value for the original capacitor instead of adding a capacitor?
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    AC power - Simulation and hand calculated values different

    For some reason the simulator will not let me put a capacitor in parallel with the source.
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    AC power - Simulation and hand calculated values different

    I want to reduce reactive power by 50% This is my work: ##Q_{original}=430.8## ##Q_{desired}=215.4## ##Q_{delta}=215.4## ##X_C=\frac{V_{rms}^2}{Q_{delta}}=\frac{120^2}{215.4}## ##C=\frac{1}{X_C*2*pi*60}=3.967e-5## Where would I stick this capacitor in the circuit to get my desired reactive...
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    AC power - Simulation and hand calculated values different

    Quick question: To reduce reactive power consumption, we would add a larger capacitor, right?
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    AC power - Simulation and hand calculated values different

    No worries. I really appreciate all the help you've given me this semester. You are literally (figuratively) a life saver.
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    AC power - Simulation and hand calculated values different

    I am using Simulink + SimPowerSystems. I think I am only able to get the RMS values. Edit: Nevermind. I found a power measurement tool.
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    AC power - Simulation and hand calculated values different

    Yes, but the professor wants the Total Real/Reactive power measured with MATLAB as well as by hand. I already have the by hand part.
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    AC power - Simulation and hand calculated values different

    How would I get total complex power using MATLAB? I can get the RMS Current of the source, but I wouldn't have any degree, only magnitude.