## EE6411 Electrical Machines 1 Lab Manual

Anna University Regulation 2013 Electrical and Electronics Engineering (EEE) EE6411 EM1 LAB Manual for all experiments is provided below. Download link for EEE 4th SEM EE6411 Electrical Machines 1 Lab Manual is listed down for students to make perfect utilization and score maximum marks with our study materials.

### Anna University Regulation 2013 Electrical and Electronics Engineering (EEE) 4th SEM EE6411 EM1 LAB-Electrical Machines 1 Lab Manual

OPEN CIRCUIT AND LOAD CHARACTERISTICS OF SEPERATELY EXCITED D.C SHUNT GENERATOR
AIM:
To obtain open circuit and load characteristics of separately excited d.c shunt generator.
PRECAUTION
 All the switches are kept open initially.
 The motor field rheostat is kept at minimum resistance position.
 The generator field rheostat is kept at maximum resistance position.
PROCEDURE
OPEN CIRCUIT CHARACTERISTICS:-
 The connections are made as per the circuit diagram.
 After checking minimum position of motor field rheostat, maximum position of generator field rheostat, the supply side DPST switch is closed and starting resistance is gradually removed.
 The motor is started using three point starter.

 By varying the field rheostat of the motor, the speed of the motor is adjusted to the rated speed of the generator.
 By varying the generator field rheostat, voltmeter and ammeter readings are taken
MODEL CALCULATION:-
Armature current, Ia = IL = If
Generated EMF, Eg = (V + Ia Ra)
RESULT:
Thus the open circuit and load characteristics of separately excited D.C. shunt generator

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