|Level 1||The system is not degraded. No immediate action is required.|
|Level 2||There is a small amount of ageing related signals.|
|Level 3||Component has a low to moderate level of deterioration.
System has a low probability of failure within the next two years.
|Level 4||Component has medium probability of failure within the next two years.
Further discussion is required with the customer to determine the
viability of rejuvenation or replacement.
|Level 5||Component is at the end of economic life and has a high probability
of failure within one year. Recommend immediate attention.
|Feature||CableWISE Sensor||Normal HFCT Sensor|
|Measurement||Measure Capacity sensor with electrical field (PD pulse voltage)||Measure Inductive sensor with magnetic field (PD pulse current)|
|Range||300mm~ , maximum of 800MHz||kHz~30MHz|
|Measure location||Cable terminal, Cable joints||Earthing cable|