This paper analyzes the problems concerning procedure

standards

and process in the on-site acceptance partial-discharge（PD） test on the 750 kV transformers.Some suggestions are therefore offered as follows:①increase the power frequency withstand test voltage for 750 kV transformers;②avoid to perform PD test repeatedly;③ take practical measures if PD quantity exceeds the criterion stated in standard;④redefine the PD inception voltage and extinction voltage;⑤use reliable on-line monitoring apparatus when necessary.These suggestions can also serve as a reference for the same test on 1 000 kV transformer.