36
2
TEST 5 - Test Alternator Windings
There are four components that contain windings
that form an electrical path of low resistance.
Each component can be checked for continuity.
To Check Winding for Continuity:
1. Using meter, measure the loop resistance
of the following four components:
• Exciter Stator
• Exciter Rotor
• Main Stator
• Main Rotor
2. Verify measured values against those
listed in the table below.
NOTE: These very small resistances require
precision test equipment to obtain accurate
measurements. However, a standard meter will
provide a good indication of winding continuity.
Figure 27 Generator Stator Resistance
Figure 28 Generator Rotor Resistance
Figure 29 Exciter Stator Resistance
Figure 30 Exciter Rotor Resistance
• If winding resistance is
acceptable,proceed to Insulation
Resistance Test.
• If winding resistance is not acceptable,
repair or replace as necessary.
Generator Resistance Exciter Resistance
Stator Rotor
Exciter
Field No
Load Volts
Stator Rotor
0.07 0.46 10.1 18.0 0.120
To Next Page
Loading...
Need help?
General
