Parabolic Reflector
Parabolic Reflector is an ultrasonic sensor for use when detecting partial discharge activity on exposed insulating surfaces. The reflector increases the sensitivity of the sensor allowing detection to be effective at up to 100m. It is commonly used in outdoor switchyards to detect surface discharge on string and post insulators, sealing ends and other exposed equipment.
Use of Parabolic Reflector
With the Parabolic Reflector connected to the PD-SGS, the reflector should be pointed at the HV equipment being inspected. Look through the view finder with both eyes open and line up the red dot visible through the view finder with the centre of the inspection area.