30220351 (Experiments for Electric Machinery)

Course Name: Experiments for Electric Machinery

Course Number: 30220351

Program: Undergraduate program

Type: Required

Credits: 1

Term Offered: Spring

Prerequisite(s): Physics, Principles of Electric Circuits

Instructor(s): Xudong Sun, Shanming Wang, Jianyun Chai


Xudong Sun, Shanming Wang. Directions to electric machinery experiments. Tsinghua University teaching materials, 2008. (in Chinese)


Shijun Du, Haiyuan Tang, Xiaojiang Zhang. Fundamental experiments on electric machine and drives. China Machine Press, 2007. (in Chinese)

Xudong Sun, Shanming Wang. Electric machinery. Tsinghua University Press, 2006. (in Chinese)

A. E. Fitzgerald, C. Kingsley, S. D. Umans. Electric machinery (6th Edition). McGraw-Hill, 2003.

A collection of standards of electric rotating machine. Standards Press of China, 2002. (in Chinese)

Jiacai Fu. Electric machine experiments and practice. Higher Education Press, 2004. (in Chinese)

S. J. Chapman. Electric machinery fundamentals (4th Edition). McGraw-Hill Higher Education, 2005.

Course Description:

     This course, as a complementary one of the course “Fundamentals of Electric Machinery” (30220334), is about the foundation of the electric machine experiments and practice, and some substantial ideas as electrical engineers. It covers the basic principles and test methods of typical electric machines including transformers, synchronous machines, induction machines and DC machines. A good grasp of the basic knowledge of electric machinery experiments and the ability to apply it to practice are emphasized. Besides, students are encouraged to design an experiment with bold or novel ideas.

Course Objectives and Outcomes:

The chief objective of the courses is to build a strong foundation in the basic technique of electric machinery experiments. Its emphasis has been on raising the students’ ability to conduct electric machinery and electric engineering experiments and tests, and the ability to design an experiment, and analyze and solve the practical problems.

The course should enable the students to do the following upon completion of it. Numbers in brackets are linked to department educational outcomes.

1.Understand the basic principles of electric machinery and electric engineering experiments, and raise the ability to design and conduct experiments, as well as to analyze and interpret data. [1, 2, 3]

2.Have the ability to identify, formulate, and solve the problems concerning the practical electric machines and circuits for experiments. [5]

3.Cultivate the ability to use the theories, techniques, skills, and modern engineering tools necessary for electric machinery practice. [11]

4.Cultivate the ability to organize, communicate and cooperate effectively. [7]

Course Topics:

1.Required laboratory experiments

1) Three-phase transformer: parameters determination and performance

a. Short-circuit test

b. Open-circuit test

c. Load test

2) Three-phase synchronous generator: parameters determination and operating characteristics

a. Short-circuit test

b. Open-circuit test

c. Zero power factor load test

3) Three-phase synchronous generator: parallel operation

a. Paralleling

b. Regulation of active power

c. Regulation of reactive power

4) Three-phase induction motor: parameters determination and operating characteristics

a. Blocked-rotor test

b. No-load test

c. Load test

2.Optional laboratory experiments

The optional experiments are listed as follows. Students should be encouraged to put forward, design and conduct other relevant experiments by themselves, rather than being restricted to the listed ones.

1) DC machines: operating characteristics

a. Starting of DC motor

b. Torque-speed characteristics of DC motor

c. Speed control of DC motor

d. No-load and voltage regulation characteristics of generator

2) Synchronous motor

a. Asynchronous starting

b. V-curve characteristics

c. Operating characteristics

3) Torque-speed characteristics of induction motor

a. Characteristics in motoring state

b. Characteristics in electric braking states

Course Assessment:

       Experiment preparation, 30 points + Experiment performance, 40 points +      Final experiment reports, 30 points =100 points