BEAMA Journal ...

BEAMA Journal ...

4.11 - 1251 ratings - Source

In this there are only seven contacts instead of eight, and they are operated in three groups. The first, or line contactor, makes contact from the line to the middle phase of the motor, and also to the outer points of the transformer ... It is not possible to arrange for the change-over from the star to the delta connections without interrupting the circuit, and therefore ... closed, while the two-pole contactor at the top of the diagram connects them in star by simply joining the three ends together.

Title:BEAMA Journal ...
Publisher: - 1926


You Must CONTINUE and create a free account to access unlimited downloads & streaming