Commutation tests on the experimental slotless C172 traction motors for Class 45 locomotives (TM-ES-65)

A set of three experimental slotless-armature traction motors has been tested on load using the BREL locomotive works back-to-back test facility. Black band tests reveal the excellent commutation expected of the slotless motor. The memorandum describes the test facility, the black band test procedure and the test results for...