The Selection and Application of On-line Partial Discharge System on Ludila Hydro Power Plant
On-line PD(partial discharge)technology is important to learn about the insulation status of generator stator.The difficult is how to get the absolute partial discharge of stator and reduce the disturbance and noise outside of stator.This article introduce the selection and the application of Ludila LTD.We base on the instruction of National Energy Administration's guide,using pattern interpretation and noise separation technology.We selected the GuardⅡ Prime system after more learning.The application was successful after the new installation.The GuardⅡ Prime system can show machine PD and bus PD usage the directional noise separation method.We can master the reason of PD through pattern interpretation method.It is helpful for other power-plant.
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