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DMS PDMG-RH GIS Partial Discharge Monitor
Brand: Qualitrol CompanyUtilizing advanced UHF technology, the PDMG-RH system, a member of the highly successful PDMG-R family, is designed for 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 Expert 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
- High resolution
- Selectable UHF filters and gain on a per coupler basis
- Enhanced noise gating features for elimination of interference
- Enhances system reliability and reduces risks
- Detects faults in real-time before failure, damage or loss of supply
- Increases safety for personnel
- Determines condition of GIS insulation
- Implementation of efficient, condition-based maintenance strategies
- Extends residual life of aging plant and defers capital costs
- Reduces insurance premiums
- Retrofits to most major GIS systems
Specifications
Brand
Additional MMI Interface
- GPS/Backup System
Alarm Status Notification
- IEC 61850 (Email, SMS-Text Message)
Ambient Operating Temperature
- -25° to 55° C (-13° to 131° F)
Compliance
- EMC Compliance: Tested to Industrial Generic Immunity & Industrial Emission Standards at Enhanced Levels
Dynamic Range
- -75 to -30 dBm (Logarithmic)
Gating Antenna
- 100 to 3,000 MHz
GIS HV Testing
- Ability to Monitor & Record PD During Testing
HTML Based WEB Pages
- Alarms, System Status, Data Summary
Humidity
- 100 % Condensing
Input
- Equipment Cabinet: 2,000-Channels, Max.
- OCU: 7 UHF Channels (2 x 3 UHF Coupler Inputs + 1 External Antenna)
Interference Filtering
- Bandpass Filtering
- Coincidence
- Gating
- Software Filtering
Local MMI Interface
- Central Control Computer, 19” Monitor
Maximum Monitoring Locations
- 256 Sites
Mounting
- UHF Sensor: Internal or External
Operating System
- Windows® 7
Output
- Three SCADA/SCS Alarms Contacts: PD Warning, PD Alarm, System Fault, Ethernet (IEC 61850) or Modem Communications, 8 x LED Status Indicators
PD Warning / Alarm
- Event or PD Trend
Power Supply
- 110 V, 50/60 Hz
Supply Current
- 200 mA
System Alarm
- System Fault
UHF Bandwidth
- 100 to 2,000 MHz