Trane RTHD

L2
L3
1K1
1K1
1K1
1K2
1K2
1K4
1K4
1K4
R
R
R
1K2
1K3
1K3
L1
Power Flow
Motor Starts in
Wye
Configuration
L2
L3
1K1
1K1
1K1
1K2
1K2
1K4
1K4
1K4
R
R
R
1K2
1K3
1K3
L1
Power Flow
If 1.6 seconds after 1K1
closed, no current was
detected by all three CT´s
for the last 1.2 seconds,
then ¨Starter Fault Type
III¨ is Displayed.
38 RLC-SVD05A-EN
Starter
Figure 19.Y-Delta Starter Sequence
Figure 20.Y-Delta Starter Sequence