Separation of Eddy Current and Hysteresis Losses
Laboratory Report Assignment N. 2
Separation of Eddy Current and Hysteresis Losses
Instructor Name: Dr. Walid Hubbi
By: Dante Castillo
Mordechi Dahan
Haley Kim
November 21, 2010
ECE 494 A -102 Electrical Engineering Lab Ill
Table of Contents Objectives 3 Equipment and Parts 4 Equipment and parts ratings 5 Procedure 6 Final Connection Diagram 7 Data Sheets 8 Computations and Results 10 Curves 14 Analysis 20 Discussion 27 Conclusion 28 Appendix 29 Bibliography 34
Objectives
Initially, the purpose of this laboratory experiment was to separate the eddy-current and hysteresis losses at various frequencies and flux densities utilizing the Epstein Core Loss Testing equipment. However, due to technical difficulties encountered when using the watt-meters, and time constraints, we were unable to finish the experiment. Our professor acknowledging the fact that it was not our fault changed the objective of the experiment to the following: * To experimentally determine the inductance value of an inductor with and without a magnetic core. * To experimentally determine the total loss in the core of the transformer.
Equipment and Parts
* 1 low-power-factor (LPF) watt-meter * 2 digital multi-meters * 1 Epstein piece of test equipment * Single-phase variac
Equipment and parts ratings
Multimeters: Alpa 90 Series Multimeter APPA-95 Serial No. 81601112
Wattmetters: Hampden Model: ACWM-100-2
Single-phase variac: Part Number: B2E 0-100 Model: N/A
(LPF) Watt-meter: Part Number: 43284 Model: PY5
Epstein test equipment: Part Number: N/A Model: N/A
Procedure
The procedure for this laboratory experiment consists of two phases:
A. Watt-meters accuracy determination
-Recording applied voltage
-Measuring current flowing into test circuit
-Plotting relative error vs.
Separation of Eddy Current and Hysteresis Losses
Instructor Name: Dr. Walid Hubbi
By: Dante Castillo
Mordechi Dahan
Haley Kim
November 21, 2010
ECE 494 A -102 Electrical Engineering Lab Ill
Table of Contents Objectives 3 Equipment and Parts 4 Equipment and parts ratings 5 Procedure 6 Final Connection Diagram 7 Data Sheets 8 Computations and Results 10 Curves 14 Analysis 20 Discussion 27 Conclusion 28 Appendix 29 Bibliography 34
Objectives
Initially, the purpose of this laboratory experiment was to separate the eddy-current and hysteresis losses at various frequencies and flux densities utilizing the Epstein Core Loss Testing equipment. However, due to technical difficulties encountered when using the watt-meters, and time constraints, we were unable to finish the experiment. Our professor acknowledging the fact that it was not our fault changed the objective of the experiment to the following: * To experimentally determine the inductance value of an inductor with and without a magnetic core. * To experimentally determine the total loss in the core of the transformer.
Equipment and Parts
* 1 low-power-factor (LPF) watt-meter * 2 digital multi-meters * 1 Epstein piece of test equipment * Single-phase variac
Equipment and parts ratings
Multimeters: Alpa 90 Series Multimeter APPA-95 Serial No. 81601112
Wattmetters: Hampden Model: ACWM-100-2
Single-phase variac: Part Number: B2E 0-100 Model: N/A
(LPF) Watt-meter: Part Number: 43284 Model: PY5
Epstein test equipment: Part Number: N/A Model: N/A
Procedure
The procedure for this laboratory experiment consists of two phases:
A. Watt-meters accuracy determination
-Recording applied voltage
-Measuring current flowing into test circuit
-Plotting relative error vs.
Bibliography: Chapman, Stephen J. Electric Machinery Fundamentals. Maidenhead: McGraw-Hill Education, 2005. Print. http://www.tpub.com/content/doe/h1011v2/css/h1011v2_89.htm