Remote Sensing - Corona

IR thermographic technology and the UV inspection technology are complementary inspection technologies. Both are considered Non-Destructive, Remote Sensing, Visual technologies. Together they cover a wider spectral range and provide enough information to maintain a clear view of the assets. In fact, both technologies are required to perform a comprehensive survey towards establishing reliable and efficient predictive maintenance procedures.

Efficient for: transmission distribution,substations, switch gears, motors and in commissioning stages of new installations.

	InfraRed	UltraViolet
	Detects ΔT - Hot Spots – NotCorona!	Detects Corona
	Current Dependent Heavy Line Loading is needed	Voltage dependent (e-field) No line loading needed
	Solar radiation and hot environment can mislead	All lighting & weather conditions
	Detection occurs usually at progressive stage of degradation	Detection at Earlier of Degradation (i.e. Commissioning)