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Reasons Encountered for the Upgrade of Voltage Regulator or Static Excitation Systems

Upgrading your Voltage Regulator or the full Static Excitation System puts new life in older Generating Systems. Reasons to upgrade your old Voltage Regulator or Static Excitation System with a new Digital Control can include:

  • The Automatic Voltage Regulator and / or the Exciter Field Rheostat is out-of-service, and can not be repaired due to equipment obsolescence and lack of spare or renewal parts
  • To eliminate the operating restrictions of the older equipment
  • To replace obsolete regulating equipment
  • To extend the VAR Capabilities of the unit via better protection & Limiter circuitry
  • Rotating Exciter problems
  • High maintenance & operating costs of rotating apparatus
  • To interface the Voltage Regulators to the DCS via available communication links for the control & monitoring of the system
  • To meet NERC System requirements with available Protection / Limiters enhancements of the Digital Control Systems
  • To obtain better system operating performance, response time, reliability & efficiency
  • To meet Power System Stabilizer requirements
  • To save operating costs via better performance, increased reliability, and reduced maintenance
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