Method and system for detecting coolant leaks in generators

摘要

There is provided a system and method for detecting gas leakage in a generator. The system includes a source of non-corrosive tracer gas and a subsystem for introducing the non-corrosive tracer gas into the hydrogen-cooled generator. An infrared imaging device is configured to communicate with a notification device to display an image of at least a portion of the hydrogen-cooled generator and the non-corrosive tracer gas. The infrared imaging device includes a cooled detector and a filter having a spectral sensitivity between about 3 μm and about 5 μm. The detector and / or filter is cooled to between about -80 ° C and about -200 ° C. The gas leak is displayed on the notification device. The generator can be hydrogen-cooled and switched on or network-coupled.