A Temperature Optical Fiber Sensor Network: From Laboratory Feasibility To Field Trial

Investigation of stator coil and lead temperatures on high voltage inside large power generators via use of fiber Bragg gratings

“…A critical part in the power generator that can be damaged during operation is the insulation. Overheating could destroy the insulation, an overall failure of the generator would occur [2,3]. Thus it would be advantageous if the temperature could be measured with sensors being in direct contact to the stator coil and leads, preferably in those locations, where hot spots are to be expected.…”