- Country of manufactureRussia
Electric motors of a direct current. Appointment, general information
Now in the electric drives adjusted on the speed or the moment cars of a direct current are widely used. They are made by power from watt shares to 12 MW. Rated voltage does not exceed them 1500 V and only sometimes in large cars reaches to 3000 V. Chastot of rotation fluctuates over a wide range — from several turns to several thousand revolutions per minute.
Cars of a direct current with the mechanical switchboard — a collector are most widely used. Though it complicates working conditions, however correctly designed and qualitatively manufactured car of a direct current is rather reliable. Cars of a direct current, as well as all electrical machines, are reversible, i.e. can work both as generators, and as engines. Structurally they are executed equally. However for the purpose of receiving more economy mode of work generators and electric motors are projected and manufactured separately. In particular, they are made on different tension: generators — on 115, 230, 460 V, engines — for 110, 220, 440 Century.