GE Industrial Solutions ASTAT XT - Manual (Page 75)

75 • Application diagrams
Beware!
Wrong connection of the ASTAT-XT or the motor may seriously damage the motor or
the ASTAT-XT. INSIDE DELTA
WARNINGS
When using Inside Delta connection:
• It is highly recommended to use a line contactor in order to avoid possible damage
of the motor if the SCR is short circuited in the ASTAT-XT.
• If the ASTAT-XT is connected Inside the Delta, motor terminals are “live” (full voltage)
even when the contactor is open.
8.20.3
Motor Connection and Terminals
Motor connection in Delta with no ASTAT-XT.
Note:
Motor terminals are marked as follows:
ASA (USA) BS VDE IEC
T1 - T4 A1-A2 U - X U1 - U2
T2 - T5 B1-B2 V - Y V1 - V2
T3 - T6 C1-C2 W - Z W1 - W2