Electric generating set needing no outside energy

The technical function and working prinicple are as follws. It is composed of low-speed generator, solid energy variable-speed transmitter and starting motor. The starting motor drives the transmitter, the transmitter drives low-speed generator to generate electricity. The starting motor is provided electrical energy one time by outside energy (electricity) to start continued electricity generation. The generator supplies electrical energy to starting motor and forms cycle electricity generating.Then the group of generator can generate electricity automaticly and completely without outside electrical energy. It can work to the outside and get higher economic efficiency.