Power generation / Hydropower📍 Hydro plant site• Publicado: agosto de 2025
Electric heaters to prevent condensation and short circuits in generators
Thermal protection at a hydroelectric plant
> 19 °C
Internal temperature held above dew point
100%
Condensation eliminated on windings
⚠️ The operational challenge
- •Low outdoor temperatures and high humidity during generator outages
- •Condensation on stator windings
- •Sharp drop in dielectric insulation and short-circuit risk at restart
- •Accelerated electromechanical wear from recurring moisture
💡 Engineering solution
- ✓Thermal sizing to keep stator temperature above 19 °C
- ✓Supply and installation of distributed stator space heaters
- ✓Thermostats and relays for automatic on/off during outages
- ✓Megohmmeter insulation checks before and after energization
🛠️ Equipment & technologies supplied
Stator space heaters
Control thermostats and relays
High-dielectric terminal insulation
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