SCR/Diode Stacks for Power Generation / Excitation

DARREX AIR™ is a drop in replacement Air Cooled Three Phase Diode Bridge and 5-Pole Disconnect Switch for the aging GE Alterrex™ water cooled excitation systems. The Diode Bridge and Switch are state of the art designs that directly mount to the original equipment cubicle (doghouse) using existing mounting rails and A.C. and D.C. bus bars. The DARREX AIR™ conversion eliminates the maintenance, reliability and safety issues associated with existing water cooled diode rectifier bridges while meeting and exceeding D.C. voltage and current requirements.

Click here for Air Cooled Rectifier Replacement for GE Alterrex™ Water Cooled Excitation Systems flyer 

Darrah Electric offers Westing-house WTA Trinistat power drawer upgrades for Power Plant Excitation. Now replace the complete SCR stack assembly of Westinghouse Trinistat Power drawers with improved higher current and voltage technology.

Click here for WTA Power Amplifier Drawers - Rebuilds flyer 

CLick here for Installation Instruction Manual For Darrex Air 

Please call (216) 631-9970 or email us for any questions or lead times.