Page 185 - CITS - Electrician - Trade Practical

ELECTRICIAN - CITS

TASK 2: Identify terminals of alternator

1 Identify the field coil of the alternator and measure resistance by multimeter. The field winding resistance is
higher than that of armature windings.
2 Identify the output terminals of alternator. Measure the resistance between phase and neutral and record.

Between phase 1 Between phase 2 Between phase 3
Field winding
and neural and neural and neural

Resistance, ohms

3 Identify the Automatic Voltage Regulator (AVR) section provided in the alternator.
4 Identify the slip rings of the alternator.
5 Label the part numbers on the alternator

Sl. No Part number Name of the part
1.
2.
3.
4.

5.
6.
7.
8.

TASK 3: Wire up the alternator and prime mover to a panel.
1 Set the meters and switchgear as per Fig 1
2 Wire up the DC motor terminals and Alternator terminals to the panel and make connections of the measuring
instruments and switchgear.

168

CITS : Power - Electrician & Wireman - Exercise 76