Complex sentence: In his career, he became the co-inventor of the electric transformer, the tension regulator, the watt meter, the alternating current (AC) electric motor, the turbo generator, and the high efficiency turbo generator.
Split into simpler sentences: In his career, he became the co-inventor of the electric transformer. He invented the tension regulator, the watt meter, the alternating current (AC) electric motor, the turbo generator, and the high efficiency turbo generator.