Description
The Pry-Cam™ Grids is an integrated, autonomous Partial Discharge (PD) monitoring systems for electric components (cables, joints, terminations, GIS, transformers, etc.) based on the exclusive Prysmian Pry-Cam™ wireless sensing technology. They make possible to monitor the conditions of High Voltage and Medium Voltage assets by continuously tracking the Partial Discharges activity. The system performs periodic PD measurements that are locally analyzed, stored and optionally sent to a remote server. The monitoring system automatically analyzes each measure and is able to send an alarm if an anomalous condition is detected. The measurements can be remotely viewed and controlled from any location via an Internet connection, this allows remote diagnoses to be made.
The Pry-Cam™ Grids is composed by a high speed acquisition unit, an embedded computer handling the measurement process, analysis and communication tasks, a solid state local data storage and an optional communication module with the remote server (GPRS/UMTS or LAN connection). Each unit can handle up to 3 PD sensors (either smart PD sensors or usual HFCTs).
The Pry-Cam™ Grids employs a high performance data acquisition unit that allows to acquire the actual PD pulse waveforms with a time resolution of few nanoseconds. This allows to collect a very rich set of diagnostic information for every acquisition. This technology provides more information on the phenomena under test compared to other technologies (e.g. peak pulse detection, frequency band analysis, etc).
During the measurement, the control software allows the removal of environmental noise, the separation of different pulses with different shapes (and usually origins), and separately process them with classification, identification and diagnostic algorithms. This process lead to a complete assessment of all kind of defects present in the system under test, its wear level, and to estimate the residual lifetime of the tested system.
Data sheet
