Current transformers and relays for high-speed differential protection, with particular reference to offset transient currents

T. R. Halman (The Detroit Edison Company, Detroit, Mich.): The methods described in the paper by Messrs. Wentz and Sonnemann for determining the performance of current transformers under high values of primary current involving fully offset waves should be of great value to those interested in applying instantaneous bus differential protection. The problem is particularly important where it is desired to use existing current transformers having relatively low ratios and moderate-sized cores.