Abstract: Sensing methods and systems for transformers, and the construction thereof, are described herein. Example transformer systems and example methods for constructing a core for the system are disclosed. The example system includes a core with a bottom plate, two or more limbs mounted to the bottom plate and a top plate enclosing the core. At least one of the bottom plate, the limbs and the top plate is formed with a sensing component therein. The sensing component can be mounted to a spacer layer assembled within a stack of laminated layers. The sensing component can be mounted within a path defined within the spacer layer, for example. Methods for detecting operating conditions within the transformer are also disclosed.

Abstract: Optical sensing methods and systems for power applications, and the construction thereof, are described herein. An example method of constructing a winding assembly includes mounting a sensing component to a coil former, and winding a coil onto the coil former so that the sensing component is positioned within the coil. A system and method for detecting operating conditions within a transformer using the described winding assemblies are described.

Abstract: Optical sensing methods and systems for power applications, and the construction thereof, are described herein. An example method of constructing a winding assembly includes mounting a sensing component to a coil former, and winding a coil onto the coil former so that the sensing component is positioned within the coil. A system and method for detecting operating conditions within a transformer using the described winding assemblies are described.