Finnøy Hovedbrosjyre - version 8

HYBRID PROPULSION – PTO/PTI A hybrid propulsion system is suitable for ships with variable power requirements, enabling the engines and propeller to run optimally over a wide power range. The E motor can be with a synchronous speed, but in order to have optimal propeller speed it is preferable to control the speed with a frequency converter for fuel savings and lower emissions. The hybrid propulsion system combines the best from two systems; - diesel electric and diesel mechanical propulsion. DIESEL MECHANICAL DRIVE: Used for transit from A to B. DIESEL ELECTRICAL DRIVE : Used for standby, DP or other operations modes with a benefit of variable propeller speeds. «BOOST» DRIVE: Used for heavy loads like towing, anchor handling or trawling. Main engine and electric motor operating together, for max. power. «TAKE ME HOME» DRIVE: Use of electrical motor in case of main engine breakdown. A large number of operational modes are available. Ranging from basic to more complex configurations, following are 3 examples: ALT. 1 “Diesel electric mode” ALT. 2 “Diesel electric mode” ALT. 3 “Diesel electric mode”, “Boost mode” “Generator mode” and “Boost” TWIN INPUT – SINGLE OUTPUT PTO/PTI connected prior to the main clutch (C1 – C2). With separate clutches (C3) and (C4) on the main engine. “CP-Generator Mode” “Diesel Electric Mode” “Boost Mode” “Combination Mode” This feature is also used on twin screwed vessels, giving the possibility to operate the vessel with only one main engine running.