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Material Type: Lab; Professor: Khabari; Class: CIRCUIT THEORY II; Subject: Electronics; University: Wentworth Institute of Technology; Term: Unknown 1989;
Typology: Lab Reports
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Objective:
The power relationships are defined thusly: Designation Name Units of measurement Formula Notes S Apparent power Volt-amps, VA (^) S=VI S=VI^ is polar form of power. I^ is conjugate of I P Real (average) power Watts, W (^) P= VI cos Ф Ф = power factor Q Reactive power Volt amps reactive, VAR Q= VI sin Ф Power factor =P/S & phase difference ‘twn V and I. In this lab you built a circuit and compare the theoretical values to actual measurements. You will determine the volts delivered and the current consumed noting their phase difference. From this information you construct a Power Triangle. Procedure: PART I: Capacitive Load a) Construct the circuit shown below (Fig 4.1) Fig. 4. b) Measure the sensing resistor Rs = ______________ c) Measure the RMS value of VRs VRs = ______________ d) Calculate Irms Irms=________________