Thermal Power Plant EHC Fluid Restoration
Two FM-60-EX purifiers restored EHC fluid resistivity to spec and stopped servo-valve failures on a 600 MW unit.
Challenge
EHC fluid resistivity dropped from 10 GΩ·m to 1.5 GΩ·m. Servo-valve sticking caused 3 unplanned trips in 12 months.
Solution
Two dedicated EHC purifiers (FM-60-EX) running on a 24/7 online loop with continuous resistivity monitoring.
Outcome
Resistivity restored to >10 GΩ·m within 8 weeks. Zero servo-valve failures in 24 months. Acid value reduced from 0.18 to 0.04 mg KOH/g.
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