Thornycroft TRGT-25 25kVA Marine Diesel Generator Package

Description

Featuring a four-cylinder liquid-cooled diesel block, the Thornycroft TRGT-25 Marine Generator Package outputs 20.0 kW continuous three-phase power with 25.0 kVA peak capacity at 1,500 RPM. Encased inside a heavy sound enclosure, it provides balanced 400-volt alternating current to support commercial refrigeration systems, live-well aeration pumps, hydraulic power units, and watermakers aboard large offshore catamarans without noise.

Heavy-duty compacted cast iron forms a rigid foundation to resist structural distortion during high-load marine cycles. The internal reciprocating train features a forged chrome-moly crankshaft, heavy-section connecting rods, and oil-jet cooled forged aluminum pistons. Technical specifications include an 87 mm bore, 102.4 mm stroke, 21.5:1 compression ratio, 8.0-quart oil capacity, and dry net weight of 990 lbs inside its acoustic capsule.

Key Features of Thornycroft TRGT-25

Yacht builders buy Thornycroft TRGT-25 generator packages to deliver balanced three-phase electrical power without excess engine mass. This modern turnkey package matches high electrical demand while holding engine room sound levels down to quiet conversation volumes.

• 20.0 kW continuous 400-volt three-phase output supports heavy induction motor starts without voltage sag.
• Brushless revolving field alternator utilizes electronic voltage regulation to hold line voltage within one percent.
• Sealed acoustic housing suppresses internal operational noise down to 55 decibels at seven meters distance.
• TRGT-25 marine generator package digital controller tracks oil pressure, water temperature, AC frequency, and runtime.
• Cupronickel tube-and-shell heat exchanger prevents raw seawater from entering inner cast iron engine cooling channels.
• Single-side maintenance face organizes oil filters, fuel filters, and zinc plugs behind one fast latching door.
• Water-cooled cast iron exhaust elbow isolates extreme exhaust heat from composite yacht bulkheads.

Three Phase Alternator Load Performance

Operating at an exact 1,500 RPM governing point, this four-stroke diesel maintains steady 50 Hz current standards. Full electrical output yields 20.0 kW (25.0 kVA at 0.8 power factor) across 400-volt lines. Measured fuel burn records 1.35 gallons per hour at half load and 2.35 gallons per hour at full continuous rating. The pressurized lubrication circuit maintains 40 to 65 PSI hot oil pressure, shielding critical crankshaft journals.

Engine Bed Machinery Clearances

Outer dimensions measure 1,260 mm long, 650 mm wide, and 740 mm high within its heavy sound enclosure. Four captive marine mounts detach engine harmonics from stringer frames. The 2-inch wet exhaust fitting requires direct fall to waterlock silencers, and side panels require five inches of technician working room.

Scheduled Marine Service Instructions

Prime fuel passages using the hand pump primer to expel air pockets before turning the starter motor. Fill freshwater circuits completely to avoid localized cylinder head hot spots. This generator package is not engineered for non-marine installations, raw seawater engine blocks, or unventilated bilge holds.

• Drain factory break-in oil and install replacement lube filter canisters after the first 50 engine hours.
• Inspect flexible sea water pump impellers and drain water collection bowls every 200 engine hours.
• Descale heat exchanger tube bundles and replace internal protective zincs every 12 months.

Factory Warranty Crate Inventory

Thornycroft covers this equipment with a 24-Month limited marine manufacturer warranty. The wooden shipping pallet contains the complete generator package, acoustic sound shield, digital remote station, flexible fuel line kit, factory load bank test report, and operator service documentation binder.