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UNITROL® Power System Stabilizer (PSS) features and technical data

Improve network stability by refurbishing existing generator exciters

 

 

UNITROL PSS built-in features                     

  • Microprocessor-based digital power system stabilizer with transfer function in accordance with IEEE standard 421.5 PSS 2A/2B or PSS 4B
  • Simple parameter setting with local operating unit (standard) or with notebook and CMT software (option)
  • Integrated data logger with 6 channels, each with 1000 samples with programmable sampling interval  
  • Comprehensive self monitoring
  • Communication with higher-level control systems via bus coupler (MODBUS, PROFIBUS as option)
  • LAN integration (TCP/IP) via Ethernet adapter for remote diagnostics (option)
  • Built-in automatic ON/OFF control logic and minimum active power activation threshold value  3-phase voltage measuring
  • Single or 3-phase current measuring
  • Two isolated analog outputs for PSS signal
  • Free programmable analog and digital inputs and outputs

Other features

  • 3-phase voltage measuring
  • Single or 3-phase current measuring
  • Two isolated analog outputs for PSS signal
  • Free programmable analog and digital inputs and outputs
  

CMT 1000 Oscilloscope

This convenient tool for Microsoft Windows serves the following purposes:

  • Display and on-line changes of application program and parameter settings
  • Status indication and remote operating function
  • Event and data logger display
  • Trending display of up to six analog signals


PSS calc - for calculation of PSS 2A/2B settings

  • This tool is intended for the calculation of the IEEE 2A/2B settings of a power system stabilizer


MB PSS calc - for calculation of MB PSS settings

  • This tool is intended for the calculation of the IEEE 4B settings of a power system stabilizer.

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