BENSHAW ENHANCED KEYPAD User Manual download pdf (Page 168)

Wye Delta Starter

7.8 Wye Delta Starter

When the Starter Type parameter is set to Wye-Delta, the MX

is configured to operate an Electro mechanical Wye-Delta (Star-Delta)

starter. When in Wye-Delta mode, all MX

motor and starter protective functions except bad SCR detection and power stack overload,

are available to provide full motor and starter protection.

A typical closed transition Wye-Delta starter schematic is shown in the following figure.

160

7 - THEORY OF OPERATION

MX2 CARD

BIPC-300055-01

Figure 41: Wye Delta Motor Connection to the MX

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BENSHAW ENHANCED KEYPAD User Manual Page 168