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DMS PDMG-R Partial Discharge Monitor

Brand: Qualitrol Company

Utilizing advanced UHF technology, the PDMG–R system is designed for large EHV GIS installations.

It collects PD data from UHF sensors (couplers) installed on the GIS and transmits the information to software for automatic interpretation and analysis by propriety HQ Software - allowing incipient faults to be avoided and the condition of the long term health of the insulation system to be simply and effectively monitored over the life of the GIS.
Features
  • Automatic PD fault classification
  • Robust design allows for reliable operation in almost any environment
  • Flexible installation options

Specifications

Ambient Operating Temperature

  • -25° to 55° C (-13° to 131° F) (BS EN 60068-2-1,60068-2-21)

Bandwidth

  • 500 to 1,500 MHz According to NGC/TGN(T) 121

Bi-Weekly System Status Notification

  • Email, SMS (Text Message)

Compliance

  • EMC Compliance: Tested to Industrial Generic Immunity & Industrial Emission Standards

Humidity

  • 100 % Condensing

Input

  • Equipment Cabinet: 300-Channels, Max.
  • OCU: 3 UHF Channels

Local Interface

  • Equipment Cabinet: Central Control Computer with 17” Monitor

Maximum Monitoring Locations

  • 256 Sites

Memory

  • 512 MB

Minimum Size for Installation

  • 5 MB (Excludes Database)

Mounting

  • UHF Sensor: Internal or External

Operating System

  • Windows® XP Compatible

Output

  • Equipment Cabinet - Two SCADA / SCS Alarms Contacts: PD Alarm, System Fault, Ethernet (IEC 61850) or Modem Communications, LED Status Indicators
  • UHF Sensor: Communicates to OCU or Equipment Cabinet

PD Alarm

  • Gradient, PD Trend

PD Trend Indicators

  • Criticality Rate of Change

Power Supply

  • OCU: 110-240 V, 50/60 Hz

Remote Interface

  • Equipment Cabinet: GPS/Backup System

Supply Current

  • OCU: 110 mA

System Alarm

  • Channel Fault
  • System Fault
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