Unsupported Exciters and Regulators
After years of thermal aging, older excitation systems frequently develop cold solder joints on printed circuit boards, intermittent potentiometer misoperations, or other similar failures
resulting in unwelcome and unexpected forced outages. The cost of replacing the OEM circuit boards, if they are available at all - can approach or even exceed the cost of replacing the entire
excitation system. Basler can help you add a new digital AVR and retain the power SCR bridges, PPT, and AC or dc field breakers.
For a review of this option, read Selecting the Excitation System for the Additional
Turbine Generator at the Port Wentworth Pulp Mill. This paper covers the process involved in evaluating whether or not to reuse the generator's original compound excitation system and
if replaced, the type of excitation system that should be installed, Compound or Potential Bus Fed Type.
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