The conventional load-rejection test method is a necessary condition for newly constructed units to put them into operation for connecting them onto the power grid,a systematic approach to the necessary conditions before load-rejection test,the method of load-rejection test,and its anticipated objectives,as well as the problems frequently encountered in the test,and their solving methods,has been carried out.

As the importance and complexity of load-rejection test of large-scale steam-turbine&generator unit,the article states comprehensively about the current test method,key point and counter-measures,met problems,analyzing and processing,etc.for reference.

The article mainly introduces t he feature about debugging double inlet and outlet mill,and analyzes the problem occurred in debugging,and gives the way to solve the problem.

This paper introduced the way of resolving the higher slag quantity and it's higher content of carbon in boiler by testing,it provided available and economic running experience for the same type unit.

This paper provided some available methods and experience for improving the steam-water quality during debugging the Supercritical pressure boiler in every stage.

This paper analyzed the reason of the test error about the inlet primary air quality of the medium speed pulverizer, and calibrated the flow coefficient of the aerofoil wind quality gauging apparatus, then modified the DCS configration and ensured the nicety of the powder-air ratio automatic control curve of the milling system. Thesemeasures make sure the boiler operate safely and economically.