750 KW Generac Gemini Series MD750 Diesel Standby Generator Set - 12.0L Diesel & Fuel Tank

The Generac Gemini MD750 diesel generator's specifications, including engine details, dimensions, and output, are available from Generac Power Systems and its industrial dealer network. The "Gemini" design uses two smaller generators that work together to produce a total output of 750 kW. 

Engine

• Manufacturer: Generac.
• Engine Type: Dual 6-cylinder in-line diesel engines.
• Displacement: 11.9 liters (729 cu. in.) per engine, totaling 23.8 liters.
• Horsepower: 555 HP per engine.
• Aspiration: Turbocharged and aftercooled.
• RPM: 2280 RPM for 60 Hz operation.
• Cooling: Pressurized, closed recovery system with a factory-installed radiator.
• Fuel System: Zexel (Bosch) system using #2D diesel fuel (minimum Cetane #40). Includes primary fuel filters and flexible fuel lines. 

Generator output

• Rating: 750 kW (938 kVA) standby power.
• Frequency: 60 Hz.
• Voltage: 480V (configurable for other voltages).
• Alternators: Two separate 375 kW alternators operating in parallel.
• Excitation: Permanent magnet.
• Insulation: Class H insulation for both rotor and stator. 

Dimensions and features

• Controller: PowerManager® Digital Control Platform (PM-DCP) with a touch-screen display for monitoring voltage, amperage, frequency, and engine status.
• Enclosure: Sound-attenuated, weather-protective steel enclosure.
• Tank: Often includes a large sub-base fuel tank, sometimes up to 2000 gallons.
• Weight: Units with a 2000-gallon base fuel tank can weigh approximately 30,000 lbs.
• Other features: The Gemini system has standard safety features like low oil pressure and high coolant temperature shutdowns, and can have optional accessories like remote annunciators.