Electrical transmission

Electrical transmission An electrical transmission is a combination of an electric generator and electric engine for transmitting rotation from the primary engine to the propeller, or another actuating device. Electrical transmissions are of two types: transparent and non-transparent. In non-transparent transmissions (of the direct current) the rotation frequency at the output is not related to the rotation frequency of the primary engine. A non-transparent transmission includes a DC generator. The resulting direct current is supplied either directly to DC engines, or through inverters to an induction engines. A non-transparent transmission is widely used in diesel locomotives, dump trucks, ice-breakers as well as heavy tractors. Transparent electric transmission includes a synchronous generator and synchronous or asynchronous engines connected directly. In this case an electric transmission only replaces the reduction gear and provides a reversal. A transparent transmission is simpler and easier than a non-transparent and has been used on some ocean liners. An electrical transmission provides a convenient change of frequency and direction of rotation at the output, softer acceleration, as well as distribution of power for several drive wheels/axles. The prime engine can be located anywhere in the vehicle, regardless of location of propellers. On the other hand, electric cars are quite heavy. They also have a noticeable loss of power. Their manufacture requires a large...