A glossary of terms associated with the power engineering industry with particular emphasis on rotating machinery. It covers cooperating organizations, guide to the glossary, general, generators, motors, special machines, machines for control systems, qualifying terms, winding arrangements, construction of windings, insulation, magnetic parts, brushgear, collectors, commutators, terminals, bearings and lubrication, mechanical structure, cooling circuit, machine enclosures, supplementary qualifying terms, parameters, characteristics, characteristic values, analytical quantities, ratios of values, load, duty and rating, operation and testing.