Kubota D902-E4B, Service Manual, Page: 16 / 32

13
(1)
Exciting Amperage
Amperage fluctuates based upon the winding temperature. Following is for reference
only
.
Frequency/Rated Output Load
Exciting Amperage
(Measured)
Single-Phase 60Hz: 12 kW
No load 1.1A
Full load
( power factor=1.0)
1.5A
(2)
Resistance Value
Nominal resistance of the winding is tolerated within ± 10% at 20
℃
of the ambient
temperature. The resistance must be measured by low resistance tester. It cannot be
measured by multi-purpose tester due to index error.
Measurement value (Ω
）
Main Stator Exciter Stator Rotor
1 2 3 4 5
Armature
Exciter
Winding
J
－
K
Exciter Field Armature
Between
U-W
A – B
B – C
C – D
- - -
0.14Ω 0.29Ω 5.8Ω 8.60Ω 0.83Ω
(B) (W) (R) (G) (Y) (Br) (L) (Or) (Gr) (Vi)
Black White Red Green Yellow Brown Blue Orange Gray Violet