As electric power industry develops in high speed

traditional manual inspection can’t ensures the operation safety of substation any more

intelligent robot inspection technology has become the future of substation inspection. Aiming at practical inspection of substation robot in our country

this paper proposes several key technology of substation robot intelligent inspection include comprehensive navigation

visible

infrared and audio detection

robot automatic charging and assignment programming

then carries out inspection application in 220 kV and 500 kV substation in Guangdong Power Grid

and achieves functions like infrared detection current induced thermal defect

visible light detection switch condition and meter readout

and audio detection main transformer noise. All-weather

omnidirectional and fully automatic intelligent inspection and monitoring for substation is achieved. The technology performs well in practical application

and can sharply reduce inspection cost. It has remarkable popularization and application prospect.