PRY-CAM GRIDS

PRY-CAM GRIDS is a fixed device for the continuous (temporary and permanent) monitoring of Partial Discharge (PD) in AC (Alternating Current) electrical systems.

Key Features

• PD measurement outcome with pattern, waveform (Time Domain Analysis) and frequency spectrum (Frequency Domain Analysis)
• Online installation (temporary and permanent)
• Deployable with automatic diagnosis and automatic alarms
• Integrated with PRY-CAM Cloud platform
• Several data connectivity modes for remote communication and access
• No galvanic connection
• Used with PRY-CAM WINGS sensors
• Very low power consumption: <5 W

Benefits

• Continuous monitoring of critical assets (cables, joints, transformers, switchgear and rotating machines)
• Wired data transmission paired with fixed installation reduces direct manpower requirements for measurements
• Warnings and alarms based on an AI-based analysis algorithm, not just on PD amplitude threshold
• Reliable remote diagnosis by PD experts on demand
• Easy to install for retrofitting of existing electrical systems (if access is granted)
• 100% of diagnoses detected on HV and MV
• Suitable for any power cable system from 3 kV to 600 kV

Technical Specifications

Input 

• PD Channels: 3x100 Ohm diff., 1.5Vpp (isolated, overvoltage protected)
• Synch Channels: 3x1 MOhm, 5V + 1 x line (isolated, overvoltage protected)
• Sampling Frequency: 200 MS/s
• Bandwidth: 100 MHz
• Processing: Real-time filtering, ultra-precise timestamp (5 ns) 

Repetition Rate 

• Full Pulse Waveform: Ethernet >10,000 pps, WiFi: >3,000-6,000 pps
• Pattern Only: Ethernet >50,000 pps, WiFi: >10,000 pps
• Interfaces: Ethernet. Option or F.O. (3G/4G optional)
• Working Modes: Stand-alone instrument or continuous monitoring
• Power Supply: 110-230 V, 50-60 Hz AC / 12 V DC
• Power Consumption: < 5 W
• Working Temperature: From -50 °C to 90 °C