Testing steam turbine generator governors under system load conditions

STEAM TURBINE governors must be tested to determine performance of a governor with respect to purchase specifications, to determine the necessity for and the results of maintenance work on the governor, and to determine the optimum settings of the governor through a knowledge of the governor characteristics and system requirements in order that each unit will perform most satisfactorily considering its size, heat rate, location on the system, and local plant steam generating conditions. If the need is only for determining conformance to specifications, elaborate equipment can be used, but to be used effectively in the maintenance and operation of the governor the equipment should be simple to operate and provide the necessary data quickly.