OCR Text |
Show Cutter Motor: - General Electric 1500 hp DC 600 V 600/900 RPM, 15% continuous overload rating. Cutter Reduction Gear: - Western gear 25:1 ratio - 600 RPM input, 24 RPM output, 900 RPM input, 36 RPM output. Forward Winding - One ladder drum. Gear: — Two swing drums. - Two anchor drums for anchor booms 250 hp motor. - Ward Leonard speed control. Spud Winding Gear: - Two spud drums, 125 hp motor. - Ward Leonard speed control Motor Generator - 2250 hp Syn. motor 4160 V, 3 Ph, 60 cy. Set: - Cutter generator 1250 kw, 600 v DC - Forward winding gear generator, 200 kw, 250 V DC. - Spud winding gear generator, 100 kw, 250 V DC. - Emergency drive motor, 125 HP, 440 V, wound-rotor. Power: - Shore power from 12, 000 volt submarine cable. - Three 3,333 KVA 12000V/4160 V transformers aboard dredge. One 500 KVA L. V. distr. transformer aboard dredge. - General Electric metal clad HV&L.,V;. switch- gear control for 440 V and 250 V. - Dredge designed to receive diesel or steam power plant. - Emergency Generator — - G. M. 268-A Diesel generator and Allis-Chalmers 300 KW generator for standby operation of switchgear and hoists. Miscellaneous: - 25 ton revolving crane and motor. - 10 ton bridge crane over forward winding gear. - 10 ton bridge crane over pump. - Farval automatic lubrication for ladder and winding gear. - Fire fighting equipment --Automatic and manual CO2 system |