Thornycroft TRGS-30 30kVA Single Phase Marine Generator Set

Description

Eliminate high-amperage boat voltage drop with the Thornycroft TRGS-30 Single Phase Generator Set. Powered by an unstressed 3.3-liter four-cylinder diesel engine, this 50 Hz auxiliary power plant produces 24.0 kW continuous single-phase power with 30.0 kVA peak capacity at 1,500 RPM. Complete freshwater heat exchanger cooling isolates raw sea brine from engine jackets, sustaining large dive compressors, central chillers, and induction cooktops.

Thick-wall cast iron block metallurgy deadens mechanical combustion rumble within confined marine machinery spaces. The rotating group incorporates a forged alloy steel crankshaft, forged connecting rods, and oil-cooled aluminum pistons. Engine geometry measures a 98 mm cylinder bore, 110 mm stroke, 21:1 compression ratio, 11.5-quart oil sump capacity, and dry net weight of 1,080 lbs. Splayed main bearing caps reinforce lower case rigidity under heavy loads.

Key Features of Thornycroft TRGS-30

Superyacht captains buy Thornycroft TRGS-30 generator systems to provide massive single-phase electrical capacity inside medium-displacement vessels. The high-displacement block delivers unwavering torque reserves to handle heavy compressor starts without stalling.

• 24.0 kW continuous 230-volt single-phase output maintains heavy vessel electrical grids without alternator overheating.
• High-capacity brushless four-pole alternator uses digital regulation to hold voltage stability within one percent.
• Open skid design permits unhindered mechanical access for routine commercial maintenance inside dedicated walk-in engine rooms.
• TRGS-30 marine generator electronic monitoring system triggers immediate engine shutdown upon fault detection.
• Oversized cupronickel heat exchanger maintains low engine coolant temperatures during full-load summer runs.
• Water-cooled cast iron exhaust elbow isolates heat radiation from composite fiberglass engine beds.
• Central service layout places dipsticks, oil filters, and the sea water pump behind one accessible engine flank.

Electrical Power Dynamic Verification

Turning at a steady 1,500 RPM, this four-stroke diesel delivers clean 50 Hz power across marine distribution panels. Continuous single-phase output yields 24.0 kW and 104.3 amps at 230 volts. Fuel burn averages 1.65 gallons per hour at 50 percent load and 2.95 gallons per hour at full continuous output. Lubrication galleries sustain 40 to 65 PSI hot pressure, keeping rod bearings protected under round-the-clock service.

Engine Bed Machinery Clearances

Outer dimensions measure 1,350 mm long, 720 mm wide, and 820 mm high on its heavy structural steel skid. Four captive marine mounts detach engine harmonics from stringer frames. The 2.5-inch wet exhaust fitting requires direct fall to waterlock silencers, and side panels require six inches of technician working room.

Mandatory Service Protocol Safeguards

Vent the fuel injection circuit using the manual primer lever prior to first ignition. Fill the jacket freshwater loop to maximum levels to eliminate trapped air pockets. This generator package is not engineered for raw sea water block circulation, unvented bilges, or dry land installations.

• Drain factory break-in engine oil and renew oil filter elements after the first 50 operating hours.
• Inspect flexible raw water pump impellers and change primary fuel filter canisters every 200 operating hours.
• Clean heat exchanger raw water tubes and thread in fresh zinc sacrificial anodes every 12 months.

Factory Warranty Crate Inventory

Thornycroft covers this power plant with a 24-Month / 2,000-Hour limited marine manufacturer warranty. The heavy freight crate includes the complete generator unit, vibration isolator pads, digital remote display station, flexible fuel line kit, certified load bank test sheets, and technical operator maintenance manuals.