Electrical Machines Lab

Electrical Machines Lab

The Lab Comprising the following:  
The Lab should cover Like or better than the following Training objectives DC Motor:
•    Motor connection
•    Comparison of various machines
•    Typical machine data
•    Open-loop speed control with starter and field regulator
•    Reversing the rotation direction
•    Load characteristics at constant input voltage
•    Measurement evaluations
DC Generator:     
•    Generator connection
•    Armature voltage as a function of the exciter current
•    Function and application of a field regulator
•    Voltage control, self-excitation and separate excitation
•    Armature current and armature voltage at constant speed and constant exciter current
•    Load diagram for generator
AC machines
•    Motor connection
•    Reversing rotation direction
•    Typical characteristics
•    Load and run-up characteristics
•    Measurement evaluations
Asynchronous machines
•    Motor connection
•    Reversing rotation direction
•    Manual switching
•    Machine-specific values and characteristics
•    Measurement evaluation
Synchronous motor
•    Motor connection
•    Starting
•    Reversing rotation direction
•    Excitation and load angle
•    Synchronous compensator operation
•    Power factor and exciter current
•    Load characteristics in motor operation
V characteristics
•    Stability limits
•    Under- and over excitation
•    Measurement evaluation
 
Synchronous Generator
•    Generator connection
•    Voltage setting via the exciter current
•    Load characteristics in generator operation
•    Measurement evaluation
Mains synchronisation
•    Design and connection of the synchronising circuit
•    Comparison of bright, dark and three-lamp synchronising circuit
•    Mains synchronisation with double frequency meter, double voltage meter, synchronoscope and zero-voltage meter
Reluctance motor
•    Machine connection
•    Starting
•    Reversing rotation direction
•    Load characteristics
•    Measurement evaluation
Energy Saving Motor
•    Design and operation of energy-saving motors
•    Classes of energy-efficient motor
•    Comparing energy-efficient motors to standard motors
•    Operating characteristics of energy-saving motors
•    Determining the potential for energy-savings