Garry KeenorSo you’re a late Victorian engineer working out how to configure your electric tram. The first thing you need to do is to pick a motor to use in your rail vehicle. In the 1890s, this meant the Series DC motor. This motor was well-understood, easy to build and crucially, had the right speed-torque characteristic for its purpose: high torque from standstill, dropping away as speed builds up.
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