Abstract:

The load rejection test is a dynamic characteristics test for the steam turbine governing system to check whether the dynamic characteristics of the

turbine governing system can satisfy the requirement of unit safe and stable operation. In order to enhance the success rate of the test, before the test,

the necessary analysis, calculation and preliminary test for the key operations influencing on the test result were carried out to insure the operation of

load rejection to be correct and timely. For the large amount of operations in short time, the operation instruction cards were compiled for every operator

station.The operation was resolved into fine steps,the amount of operation of each operator station was reduced, and the pertinence of each operation step

was increased.

Key words: 300MW unit, load rejection, fine operation, operation instruction card