Electrical Machine Lab

The Electrical Machine Laboratory provides undergraduate students with practical exposure to transformers and rotating electrical machines, complementing classroom learning. Students perform experiments on DC and AC motors, generators, and single- and three-phase transformers to study their performance, efficiency, and operational characteristics. The laboratory strengthens students’ understanding of real-world machine behavior and power system applications.

List of Experiments

• To obtain the magnetization characteristics of a DC shunt generator.
• To obtain load characteristics of a DC shunt generator and compound generator (a) Cumulatively compounded, (b) Differentially compounded.
• To obtain the efficiency of a DC shunt machine using Swinburne’s test.
• To perform Hopkinson’s test and determine losses and efficiency of the DC machine.
• To obtain speed- torque characteristics of a DC shunt motor.
• To obtain speed control of a DC shunt motor using (a) armature resistance control, (b) field control
• To obtain speed control of a DC separately excited motor using Ward-Leonard.
• To obtain the equivalent circuit, efficiency and voltage regulation of a single-phase transformer using O.C. and S.C. tests.