Partial Discharge Monitoring
DMS PDMG-RH System
Utilizing 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.
QCM-PPDM System
A self sufficient and portable PDM system for rapid monitoring and analysis of partial discharge in
gas insulated switchgear (GIS) and power transformers. The system is field operated, touch screen based and gives engineers the tools required for diagnosing partial discharge with limited or no access to the main PDM infrastructure.
- DMS PDMG-RH
- QCM-PPDM
- Downloads
| Equipment Cabinet |
|
| Input | 2000 channels max |
| Local MMI Interface | Central control computer 19” monitor |
| Additional MMI Interface | GPC/backup system |
|
Output |
Three SCADA/SCS alarm contacts and five auxiliary: - PD warning - PD alarm - System fault Ethernet, IEC 61850 or modem communications 8 x LED status indicators Extensive automatic self test with logging |
| OCU | |
| Power Supply | 110 V 50/60 Hz |
| Supply Current | 200mA |
| Input | 7 UHF channels (2 x 3 UHF coupler inputs + 1 external antenna) |
| UHF Bandwidth | 100 – 2000 MHz |
| Gating Antenna |
100 – 3000 MHz |
| Dynamic Range | -75 to -30 dBm (logarithmic) |
| Ambient Operation Temperature | -25 to +55°C (-13 to +131°F) (BS EN 60068-2-1, 60068-2-21) |
| Humidity |
100% condensing |
| Interference Filtering |
|
| Methods | Per channel: Software selectable gating, coincidence, bandpass filtering or software filtering |
| UHF Sensors |
|
| Compatible | Internal or external |
| SMARTPDM and SMART HQ software | |
| Operating System | Windows 7 |
| Max Monitoring Locations | 256 sites |
| System Alarms | System fault |
| PD Warning/Alarm | Event or PD trend |
| Alarm Status Notification | IEC 61850 SMS (text message) |
| Web | |
| HTML based WEB pages | Alarm System Status Data summary |
| GIS HV testing | |
| Compatible | Ability to monitor and record PD during testing |
| Compliance | |
|
EMC compliance |
Tested to Industrial Generic Immunity and Industrial Emission standards at enhanced levels. |
| Power Supply |
|
| Voltage Range | 90 to 264 VAC, 47-63 Hz; 40 to 290 VDC universal supply |
| Supply Current | 110 mA @ 230 VAC |
| Power | 70 W |
| MCU (Master Control Unit) | |
| Input | 3 UHF channels / (or) 6 UHF channels 1 additional channel for noise antenna |
| Outputs | Alarm indications on the screen: - PD fault alarm - PD alarm - PD warning alarm - System status indicator |
| MMI | LCD display with full touch interface |
| UHF Sensors (Optional) | |
| Mounting | Internal or external |
| Output |
Communicates to portable |
| Bandwidth | Wideband 300 - 1500 MHz |
| Sensitivity | > 6 mm, < 5pC |
| Remote SMARTSUB Software | |
| Operating system | Windows XP / Windows 7 compatible |
| Max monitoring locations |
100+ |
| Memory |
1GB, upgradable (if required) |
| Min. size for installation |
20 MB |
| System Alarms |
System fault, channel fault |
| PD alarms / PD warning |
Gradient, PD Trend |
|
Performance |
|
| Sample rate |
15.4 KS/s per channel |
| Data storage |
16 GB |
| Clock |
1.2 GHz |
| Time synchronization |
Yes |
| Noise gating coincidence filters |
Yes |
| Comms |
|
| Ethernet ports - external | RJ45 (10/100 Mbps) |
| USB | One port to facilitate firmware upgrade, configuration upgrade and manual download of data |
| GPRS | Optional |
| Environmental | |
| Ambient operating temperature | -25ºC to +55ºC |
| Storage temperature | -25ºC to +75ºC |
| Humidity | 5 - 95% non-condensing |
| Enclosure Rating | NEMA IP66 |
| Siesmic | IEEE C37.98 (Seismic Testing of Relays) |
| Environmental test compliance | BS EN60068-2-2, BS EN60068-2-1, BS EN60068-2-78 |
| Vibration test compliance | BS EN68-2-6, BS EN68-2-27, BS EN68-2-29 |
| Immunity | |
| EMC test compliance | Confirms to relevant specifications for monitoring / control equipment in HV substations. BS EN55022 (:2006); BS EN61000-3-2 to -3-3, BS-EN61000-4-2 to -4-6, BS EN61000-4-8, BS EN61000-4-11, BS EN61000-4-18; IEC 60255-5, IEC 61180-1 |
| Others | EMI / RFI immunity |
| Mechanical | |
| Dimensions and weight |
508 mm x 355 mm x 254 mm [20” x 14” x 10”] |
| Display |
12” touch screen, (1024 x 768). Rotary / push button |
