An overview of the recent developments of the inter-laminar short circuit fault detection methods in magnetic cores

Inter-laminar short circuit faults between laminations of the magnetic cores increase core losses and could cause major damage to electrical machines. In this paper, first causes and consequences of inter-laminar faults in magnetic cores are presented. Different types of inter-laminar fault detection methods are then presented and discussed. In the relevant studies, advantages and disadvantages of each method is highlighted. Finally, experimental results of an electro-magnetic fault detection method based on Flux Injection Probe is presented.