Preparations

A so-called "hot spot" in the alternator of unit EC 4....
At first one of the thermocouples in the alternator showed a fast slope up .
So thermographic pictures were taken to make sure what was happening.
The shift on duty had to be sure what to do because it's a tension of 22000 Volts....

So: the unit has been stopped and has to be invesitgated.
First boroscopic investigation showed some spots...

Here Roelof and Bas are making preparations prior to remove the rotor.

Here in LARGE....