Industrial Power Machines company supplied two ADC-630 diesel power plants to Yuzhno-Lyaminskoye oil and gas field. Electric output of ADC-630 plant is 630 kW. They were developed on the base of Cummins QSK23 diesel engines. The plants are equipped with Stamford electric generators. Power plants generate electric power for the needs of drilling equipment and oil pumping infrastructure. UFRO function is one of the advantages of Stamford generators. It gives the opportunity to reduce output voltage at starting of cold engine.