Tubular Hydroelectric Generator 315kW 500rpm Bulb Type Low Head Stainless Steel Runner A 315kW tubular hydroelectric generator with bulb type arrangement for low head sites between 3 m and 12 m. The axial flow runner and compact bulb design suit run-of-river and canal applications. Key Features Bulb type tubular arrangement Low head range 3-12 m 315kW output at 500rpm Stainless steel axial runner Compact civil works for run-of-river Gearless direct drive generator Technical