In addition to insulating the outboard bearing pedestal to prevent shaft currents in an alternator, what else must be insulated?

Question

Accepted Answer

BOTH lube oil piping connections AND exciter bearings that make a connection to the alternator outboard bearing pedestal must also be insulated.

Answer

Exciter bearings that make a connection to the alternator outboard bearing pedestal must also be insulated. No such requirement exists for lube oil piping connections.

Answer

The lube oil piping connections that make a connection to the alternator outboard bearing pedestal must also be insulated. No such requirement exists for exciter bearings.

Answer

BOTH lube oil piping connections AND exciter bearings that make a connection to the alternator inboard bearing pedestal must also be insulated.

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