The PD LOC system solves the problem of pinpointing for mixed cables (XLPE / PILC) and for PD in joints of single core cables. The exact location of the joints in the field is generally not known, and these joints cannot be localized using audio frequency methods.
The system has an impulse transmitter that uses a inductive coupler to inject a signal into the cable.
The receiving and evaluating unit consists of an input amplifier for processing the signal and a control unit. The visualization of the distance system’s transmitter location is performed by using a TDR T30-E PD reflectometer in a separate menu, by means of an additional PD software function.