Abstract: A system for cooling a dynamoelectric machine is provided. The system includes a coolant medium inlet, a coolant medium outlet and a fan connected to a rotor of the dynamoelectric machine, The system further includes a flow control device configured to control the amount of the coolant medium passing through the dynamoelectric machine by controlling an opening area of at least one of the coolant medium inlet and the coolant medium outlet. The system further includes a winding temperature measurement system configured to measure the temperature of one or more windings in the dynamoelectric machine, and control the flow control device by adjusting the opening area of at least one of the coolant medium inlet and the coolant medium outlet based on the temperature of the windings in the dynamoelectric machine to at least one of reduce windage loss and control coolant medium pressure within the dynamoelectric machine.

Abstract: A power generation system is provided having a genset comprising an engine mechanically coupled to a generator. The genset is configured to generate electrical power. A ventilation system has a ventilation inlet and a ventilation outlet, and the ventilation system is configured for cooling at least one of the engine and the generator. Both the ventilation inlet and ventilation outlet have an adjustable shutter configured for adjusting a flow volume of a coolant medium through the ventilation system.

Abstract: A power generation system is provided having a genset comprising an engine mechanically coupled to a generator. The genset is configured to generate electrical power. A ventilation system has a ventilation inlet and a ventilation outlet, and the ventilation system is configured for cooling at least one of the engine and the generator. Both the ventilation inlet and ventilation outlet have an adjustable shutter configured for adjusting a flow volume of a coolant medium through the ventilation system.