IPM (Insul. Pollution Monitor)

IPM is designed to perform continuous online monitoring of external pollution effects on high-voltage insulators and other insulator housings, like surge arresters and bushings. By measuring the surface leakage current of the insulators, IPM can classify the severity of the pollution. This information can be used to make decisions on insulator maintenance.Data is stored in the data acquisition unit and is available through a web interface. The data can be downloaded for further analysis with dedicated software or a spreadsheet. The system can be set to issue alerts when certain threshold values are exceeded.IPM is designed to assess site severity and to give an alarm when pollution levels exceed predefined threshold values. The threshold values can be obtained by experience and/or laboratory tests.

Typical application areas for the IPM:

• Along­ coastal areas exposed to salt pollution
• Areas with heavy industrial pollution
• Close to hig­hways where road salt is used

The system is suitable for use on all kinds of insulators: glass, porcelain, polymeric and voltage levels from 11 kV to 765kV.

• Allows you to determine when cleaning and maintenance of insulators is needed to prevent pollution flashovers.
  
• Reduces insulator maintenance cost by enabling­ you to clean insulators only when necessary.
  
• Validates performance characteristics of different insulator designs (shape and length) and/or insulator materials under polluted environments.
  
• Allows you to define the pollution severity in local areas for pollution class specification of equipment.

• Number of measuring channels:
• Standard 3 (Optional 6)
  
• Measured parameters:
• Cumulative charges, Peak current,
• Surge counting, RMS current
  
• Measuring range of leakage current: 0 to ± 500mA (0 - 10V input range)
  
• Resolution of the leakage current: 0,122mA
  
• Peak current time resolution: 1msec (1kHz)
  
• Accuracy: 0.01% of full scale with ± LSB (0.17mA)
  
• Data storage: Once every hour on industrial grade flash disk
  
• Integrated current start level: 0.1 to 500mA, typically 2mA
  
• Time resolution cumulative charges: 4 sec.
  
• Operating temperature:0 to +60°C
  
• Relative humidity: 5-95% non condensing
  
• Power supply: Main voltage, 85-264 V AC (50/60 Hz) or 9-16 V DC
  
• Communications: RS232, Ethernet, Memory stick (optional standard modemor GSM modem)
  
• Cabinet dimensions:
• • Indoor cabinet: 38 x 38 x 21 cm; 15 x 15 x 8 inches
  • Weight: 17 kg / 37.5 lbs
    
  • Outdoor cabinet available upon request
    
• Shunt dimensions:
• • Box: 10 x 12 x 6 cm, 4 x 5 x 2.5 inches
  • Total length with ground connections: 30 cm / 12 inches
  • Weight: 0.6 kg / 1.3 lbs

• Data analysis: Web interface, PC software or data import to Excel

• Prospect IPM