RTHD and RTAC - Trane
RTHD and RTAC - Trane
RTHD and RTAC - Trane
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Starter<br />
De-energize 1K1 <strong>and</strong><br />
Energize Shorting<br />
Contactor (1K3).<br />
Check for No Current<br />
(Starter Fault type II)<br />
1 Second.<br />
1K3 Remains Closed.<br />
L2<br />
Power Flow<br />
1K3<br />
1K2<br />
1K4<br />
Figure 17.Y-Delta Starter Sequence<br />
L2<br />
1K3<br />
Shorting Contactor (1K3)<br />
continues energized.<br />
Energize Start Contactor<br />
(1K1).<br />
Power Flow<br />
1K2<br />
1K4<br />
1K1<br />
Figure 18.Y-Delta Starter Sequence<br />
RLC-SVD05A-EN 37<br />
1K1<br />
R<br />
R<br />
1K1<br />
1K1<br />
L1<br />
R<br />
R<br />
1K2<br />
1K4<br />
L1<br />
R<br />
R<br />
1K2<br />
1K4<br />
1K4<br />
1K4<br />
1K2<br />
1K2<br />
1K1<br />
1K1<br />
L3<br />
L3
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