Hartford Steam Boiler Inspection and Insurance Company · Hartford, Ct. : Hartford Steam Boiler Inspection and Insurance Co · leaf 120
to carry its share of the load.This generator was very well maintained; it was kept perfectlyclean, had never been overloaded, and had always operated underexactly the same conditions as the other generators in the plant. Onchecking the insulation resistance of the windings our inspector foundit to… … from one coil to another. As the breakdown of the mica was along apath y% in length, it was evident that the normal exciting current at125 volts could not possibly have been responsible for the trouble, andsome other cause had to be found. It was finally located in themain oil switch for the…
Locomotives · Steam-boiler explosions
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