ECET210 Week 3 iLab with Questions | Complete Solution
- HomeworkExp
- Rating : 24
- Grade : A+
- Questions : 0
- Solutions : 287
- Blog : 1
- Earned : $9883.30
Laboratory Procedures
DeVry University
College of Engineering and Information Sciences
I.OBJECTIVES
- To analyze a parallel AC circuit containing a resistor (R), an inductor (L), and a capacitor (C).
- To simulate the RLC circuit and observe the circuit responses.
- To build the RLC circuit and measure the circuit responses.
II. PARTS LIST
Equipment:
IBM PC or Compatible
Function Generator
DMM (Digital Multimeter)
Parts:
1 - 470 Ω Resistor 1 - 1 µF Capacitor
1 - 47 mH Inductor
Software:
MultiSim 11
III. PROCEDURE
A. Theoretical Analysis
- Given the R, L, & C parallel circuit in Figure 1, calculate the total equivalent admittance, YT, and the impedance, ZT, of the circuit at f = 550 Hz and 1 kHz. List the calculated values in Table 1.
Figure 1: Parallel R, C, L Circuit
Frequency Hz
L & C Admittances in Rectangular Form
Inductor
GL - jBL
Capacitor
GC + jBC
550
1000
Frequency Hz
Total Circuit Admittance YT
Rectangular Form
GT + jBT
Magnitude
Angle
550
1000
Frequency Hz
Total Circuit Impedance ZT
Rectangular Form
RT + jXT
Magnitude
Angle
550
1000
Table 1 – Calculated RLC Admittance and Impedance Values
- Calculate and record the following quantities:
Frequency Hz
IR (RMS). A
IC (RMS), A
IL (RMS). A
Magnitude
Angle
Magnitude
Angle
Magnitude
Angle
550
1000
Frequency Hz
{IR + IC + IL }= IS (RMS), A
IS = V * YT
Rectangular Form
Magnitude
Angle
Magnitude
Angle
550
1000
Table 2 – Calculated RLC Component Current Values
Does the sum of the magnitudes of the three currents IR, IC, and IL, in the table above, equal the current, IS, calculated directly in the last column?
(YES or NO)
Explain why your answer is what it is.
- Calculate the power dissipated by the parallel resistor and the power supplied by the source:
Frequency Hz
PR, W
PS, W
550
1000
Table 3 – Calculated RLC Resistor Power Dissipation
B. Multisim Simulation and Circuit Calculations
- Launch MultiSim and build the circuit schematic shown in Figure 2. Include the AC Power source and the DMMs.
- Set both DMMs, XMM1 thru’ XMM4, to read AC measurements and Current, I. See fig. 2 below.
Figure 2: MultiSim RLC Parallel Circuit with Instrumentation
- Activate the simulation and record the current readings for both frequencies:
Frequency Hz
IS (RMS), A
IR (RMS), A
IC (RMS), A
IL (RMS), A
550
1000
Table 4 – Current Measurements Simulation Results
- Do the current values in Table 4 agree with those obtained in Tables, 2, 3, & 4 of Part A? (Circle your answer)
YES NO
- Remove the DMMs and attach the wattmeter as shown below:
Figure 3 - AC Power Measurement
- Record the measurement from the wattmeter.
Frequency
Hz
Source Power, PS
(Watts)
Power Factor
550
1000
Table 5 - Power Measurement Readings
- Do values in the Tables 6 and 2 agree?
(Circle your answer)
YES NO
If there is any disagreement investigate the source of error and report your findings below:
C. Construction of a Parallel R, L, C Circuit and Measurement of Circuit Characteristics
- Construct the circuit in Figure 1.
- Set the function generator voltage to 2.5 V RMS and the frequency value to 550 Hz.
- Turn the circuit on.
- Record the current reading.
IS = _____________ (A)
- Is this the same as the simulated and calculated value? ________ (YES or NO)
- Measure and record the branch currents:
IR = ________ (A) IC = ________(A) IL = ________(A)
Are the current readings the same as your calculated and simulated values?
(Circle your answer)
YES NO
If you answered NO, explain why you think they differ.
- Repeat Steps 2 through 6 with the frequency generator set to output at 1000 Hz.
IS = ______________(A)
IR = ________ (A) IC = ________(A) IL = ________(A)
Are the current readings the same as your calculated and simulated values?
(Circle your answer)
YES NO
If you answered NO, explain why you think they differ.
IV. TROUBLESHOOTING
Describe any problems encountered and how those problems were solved.
Laboratory Report Cover Sheet
DeVry University
College of Engineering and Information Sciences
Course Number: ECET210
Professor:
Laboratory Number: 4
Laboratory Title: Analysis of AC Parallel RLC Circuit using Simulation and Construction
Submittal Date: Click here to enter a date.
Objectives:
Results:
Conclusions:
Team:
Name
Program
Signature
Name
Program
Signature
Name
Program
Signature
Observations/Measurements:
III. A. 1. RLC Circuit Calculated Impedance and Admittance Values:
Frequency Hz
Susceptance, Siemens
Inductive, BL
Capacitive, BC
550
1000
Frequency Hz
Total Circuit AC Admittance, YT
Complex Notation
Magnitude
Angle
550
1000
Frequency Hz
Total Circuit AC Impedance, ZT
Complex Notation
Magnitude
Angle
550
1000
III. A. 2. RLC Circuit Calculated Current Values:
Frequency Hz
IR (RMS). A
IC (RMS), A
IL (RMS). A
Magnitude
Angle
Magnitude
Angle
Magnitude
Angle
550
1000
Frequency Hz
{IR + IC + IL }= IS (RMS), A
IS = V * YT
Complex Form
Magnitude
Angle
Magnitude
Angle
550
1000
Match? Yes _____ No ______
Explanation:
III A. 3. RLC Circuit Calculated Power Dissipation:
Frequency Hz
PR, W
PS, W
550
1000
III. B. 3. RLC Circuit Simulation Results:
Frequency Hz
IS (RMS), A
IR (RMS), A
IC (RMS), A
IL (RMS), A
550
1000
III. B. 4. Simulation Values Match Calculated Values:
Match? Yes _____ No ______
III. B. 6. RLC Circuit Simulated Power Measurement:
Frequency
Hz
Source Power, PS
(Watts)
Power Factor
550
1000
III. B. 7. Simulation Values Match Calculated Values:
Match? Yes _____ No ______
Explain any mismatch:
III. C. 4. RLC Circuit Measured Current at 550 Hz:
IS = _____________ (A)
III. C. 5. Value Matches Calculated and Simulated Values:
Match? Yes _____ No ______
III. C. 6. RL Circuit Measured Currents:
IR = ________(A) IC = ________(A) IL = ________(A)
Match? Yes _____ No ______
Explain any mismatch:
III. C. 7. RLC Circuit Measured Current at 1000 Hz:
IS = _____________ (A)
IR = ________(A) IC = ________(A) IL = ________(A)
Match? Yes _____ No ______
Explain any mismatch:
Questions:
- Construct a Phasor Diagram to represent the source current and the branch currents, IR, IC, and IL through the resistor, capacitor, and the inductor. The diagram does not need to be drawn to scale. However, the values of the items represented must be included in the diagram.
- Did you notice any interesting feature in the lab exercise with regard to the two different frequencies chosen for the experiment?
- In the Multisim simulation, change the frequency of the source to be between 725Hz to 735 Hz (in increments of 2 Hz) and record the inductor and the capacitor currents.
Frequency, Hz
IR, mA
IC, mA
IL, mA
725
727
729
731
733
735
What do you notice from the readings?
Grade:
Deliverable
Points Available
Points Achieved
Laboratory Cover Sheet
8
Working Circuit(s)/Program(s)
8
Observations/Measurements
6
Questions
8
Total Points
30
Comments:
[Solved] ECET210 Week 3 iLab with Questions | Complete Solution
- This Solution has been Purchased 1 time
- Average Rating for this solution is A+
- Submitted On 19 Feb, 2015 12:42:34
- HomeworkExp
- Rating : 24
- Grade : A+
- Questions : 0
- Solutions : 287
- Blog : 1
- Earned : $9883.30
Because, these values were calculated theoretically, the branch current is obtained with respect to the branch impedance, and finally, source current is obtained by ta...
ECET210 Week 6 iLab with Questions | Complete Solution
100 1.9922 -0.0338 2000 0.9138 -6.8040
200 1.9642 -0.1546 4000  ...
ECET210 Week 5 iLab | Complete Solution
From loop1, we have
From loop2, we have
Writing in a matrix form
Where
After substitution, we get
Solving this 2x2 matrix, we get
...ECET210 Week 4 iLab with Questions | Complete Solution
Is decreases first , then reaches to a minimum and starts increasing
Did the source current, IS, go through a minimum or maximum as the frequency was changed from low to high?
minimum
What is the sou...
ECET210 Week 3 iLab with Questions | Complete Solution
Because, these values were calculated theoretically, the branch current is obtained with respect to the branch impedance, and finally, source current is obtained by taking total impedance of the circuit. So, the vector sum...
ECET210 Week 2 iLab3 | Complete Solution
1.0.7076+j1.1262 (mA) 1.33 mA 57.86o 0.532
2.1.531+j1.2181 (mA) 1.956 mA 38.51o 0.782
...