Projects:2016s1-121 Measurement of Transformer Parameters - Revision history

A1681836: /* Motivation */

2016-10-27T00:12:33Z

‎Motivation

A1681836: /* Supervisors */

2016-10-27T00:10:12Z

‎Supervisors

A1681836: /* Student Name */

2016-10-27T00:10:01Z

‎Student Name

A1681836: /* Transformer Parameter */

2016-10-27T00:08:58Z

‎Transformer Parameter

A1681836: /* Transformer Parameter */

2016-10-27T00:07:26Z

‎Transformer Parameter

A1681836: /* Method of Least Square for Phasors */

2016-10-26T07:16:16Z

‎Method of Least Square for Phasors

A1681836: /* Physical Measurement */

2016-10-26T07:10:31Z

‎Physical Measurement

A1681836 at 05:36, 26 October 2016

2016-10-26T05:36:41Z

A1681836 at 05:33, 26 October 2016

2016-10-26T05:33:46Z

A1681836: /* Method of Least Square for Phasors */

2016-10-26T05:22:41Z

‎Method of Least Square for Phasors

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 =='''Motivation'''==
 The demand for electrical power is significantly increasing in our world. This shows that the number of power transformers is growing enormously, which play main role by stepping up and down voltage levels within transmission network and also used in electronic equipment. Thus, while maintaining existing transformers and designing new transformer, especially for low voltage transformers, accuracy  of transformer parameters should be given also one of the priorities.
-Our project, “Measurement of Transformer Parameter” has significance in this aspect as it investigates the methods used for estimating transformer parameter, which is capable of providing more accurate values of the parameters.
+Our project, “Measurement of Transformer Parameter” has significance in this aspect as it investigates the method used for estimating transformer parameter, which is capable of providing more accurate values of the parameters.
 =='''Objective'''==

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 =='''Supervisors '''==
-Dr. Andrew Alison Dr. Rastko Zivanovic
+Dr. Andrew Alison
 =='''Abstract'''==

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 =='''Student Name '''==
 Chen Qiao
 Rahel Bekele Megersa

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 =='''Introduction'''==
 ==''Transformer Parameter''==
-Practically transformers produce loss during their operation life time. These losses are because of the electrical and mechanical characteristics of the transformers components, and thus they are considered as parameters to model a transformer as an equivalent circuit[1]. The seven parameters of transformers are the following:
+Practically transformers produce loss during their operation life time. These losses are because of the electrical and mechanical characteristics of the transformers components, and thus they are considered as parameters in transformer model[1]. The seven parameters of transformers are the following:
 -R1, R2: Represents the power loss due to the resistive characteristics of the windings

@@ Line 28: / Line 28: @@
 Practically transformers produce loss during their operation life time. These losses are because of the electrical and mechanical characteristics of the transformers components, and thus they are considered as parameters to model a transformer as an equivalent circuit[1]. The seven parameters of transformers are the following:
 -R1, R2: Represents the power loss due to the resistive characteristics of the windings
--X1, X2: Represents the inductive property of the windings winding leakage reactance
 -Rc: Represents the eddy current and hysteresis power loss of the core
 -Xm: Represents the magnetization power needed to drive flux through the core
 =='''Previous Study'''==

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 Applying the fourier series theory [3] for  a periodic function , having frequency of ω and N sample data, it can be represented as an infinite sum of cosine and sine terms of descrete frequency of integer multiple of ω. T
-We have used the LSSA to change AC current and voltage signal in time domain in to phasor domain due to the fact that phasor representation of signals can accurately represent the signals in time domain compared with RMS values of the signals. That means dealing with phasor value of known variable is equivalent to the instantaneous value of the variables during the experiment which can be used to estimate the best value of the unknown variables. [4].
+We have used the LSSA to change AC current and voltage signal in time domain in to phasor domain due to the fact that phasor representation of signals can accurately represent the signals in time domain compared with RMS values of the signals. That means using phasor value of a sample data is equivalent to dealing with the instantaneous value of the sample taken during the experiment which can be used to estimate the best value of unknown variables in a model. [4].
 [[File:Untitled.png]]
 ==''Meter Measurement''==

← Older revision		Revision as of 07:10, 26 October 2016
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−	==''~~Physical~~ Measurement''==	+	==''Meter Measurement''==

	[[File:meter.jpg]]		[[File:meter.jpg]]

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 Applying the fourier series theory [3] for  a periodic function , having frequency of ω and N sample data, it can be represented as an infinite sum of cosine and sine terms of descrete frequency of integer multiple of ω. T
-We have used the LSSA to change AC current and voltage signal in time domain in to phasor domain due to the fact that phasor representation of signals can accurately represent the signals in time domain compared with RMS values of the signals. That means dealing with phasor value of known variable is equivalent to the instantaneous value of the variables during the experiment which can be used to estimate the best value of the unknown variables. [3].
+We have used the LSSA to change AC current and voltage signal in time domain in to phasor domain due to the fact that phasor representation of signals can accurately represent the signals in time domain compared with RMS values of the signals. That means dealing with phasor value of known variable is equivalent to the instantaneous value of the variables during the experiment which can be used to estimate the best value of the unknown variables. [4].
 [[File:Untitled.png]]
 ==''Physical Measurement''==
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 [2]P.C. Sen, "Principle of Electric Machine and Power Electronics", 2th ed. Ontario, Canada, Ch. 2 sec 2.2, pp. 50-53.
-[3]Huw Fox and Bill,Bolton, “Mathematics for Engineers and Technolofiessts", ISBN. 978-0-7506-5544-6., Ch. 1, , pp. 30.
+[3]Apostol, TM, “Mathematical Analysis", 2nd  ed. California, USA, Ch. 15, sec 15-4, pp. 464-465