Saturday, April 13, 2019
Electrical Systems Essay Example for Free
Electrical Systems raiseThe purpose of this laboratory test was to make comparisons between theoretical and practical results and to develop a great understanding of factors affecting the operation of complex AC networks.The results from the Series Parallel RC network have nominal misconducts, however the small differences are mainly due to slight form and human error. The DSO should be dour on at least a day earlier to achieve steady repute, accordingly this not being done, could have caused some of the errors. When measuring the change in time, it is difficult to determine the exact pourboire at which the curve crosses the line. Because there is two fates to determine, the error is then doubled.These factors also affect the results of the RLC circuit, however the inductance causes the main errors in this circuit. At low frequencies, the inductance interferes with the signal generator, not only causing the values to be slightly wrong that also projects a graph that doesnt completely acquaint a sinusoidal function. This causes the change in time to be incorrect and therefore the frame angle. The inductor is also the equivalence of a 24 resistor, which will consequently alter the results.Whilst measuring electromotive force, it is important that the luck is connected to ground. The ground point is considered to have a voltage of zero and is therefore the reference point. If this was not the case and the component was not connected to the ground, there would not be a reference point of zero, rather the voltage of the terminal it is connected to. To measure the magnitude and phase without shifting the ground, a value could be directly read off the graph. The phase would be the same, as it is just compared to the veritable.Kirchhoffs voltage integrity (KVL) can be proven if the voltage of the source is completely consumed through the circuit. Calculations, found in the appendix, prove that the series parallel RC network follows KVL, as the v oltage consumed by the resistors and capacitors approximately equals the voltage supplied by the source. There is only an error of 2. 4% and a phase difference of half a degree, therefore it can be concluded that KVL holds for the measured values for this circuit.Calculations, found in the appendix, prove that the RLC Circuit follows KVL, as the voltage consumed by the resistor, inductor and capacitor approximately equals the voltage supplied by the source. There is only an error of 1. 02% and a phase difference of 0. 86, suggesting that the circuit is an accurate representation of KVL. Kirchhoffs current law (KCL) can be proven if the current leaving a node is equal to the current first appearance it.Calculations, found in the appendix, prove that the series parallel RC network follows KCL, as the current through IR2 added to the current through IC2 is approximately equal to the total current. There is only a 0. 647% error and a phase difference of 0. 903, suggesting the KCL holds true for the measured values for this circuit. Calculations, found in the appendix, prove that the RLC circuit follows KCL. The current supplied by the source and the current through the resistor, inductor and capacitor are all approximately equal. The errors are 0%, 2. 3% and 7. 99% and the phase differences are 0, 3. 15 and 14. This does suggest the KCL holds true merely there are slight errors in our measurements.The large errors are either due human error, machine error of inductive interference. This laboratory demonstrates that results can be measured very accurately with simply resistors and capacitors but that inductors largely affect the circuits performance. Our results prove the DSO performs accurate measurements, but allowances need to be do for the inductors resistances and signal interference.