Specifications
| Fuel | #2D Diesel |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 750 kW |
| Controller | PowerManager Digital Platform |
| Oil capacity | 31.04 L |
| Voltage options | 277/480 V, 600 V |
| Phase | 3-phase |
| Rated current | 1128 A |
| Power factor | 0.8 |
| Battery group | 27F |
| Battery cranking | 700 CCA |
| Battery voltage | 12V V |
| Battery quantity | 2 |
| Coolant capacity | 83.3 L |
| Max ambient | 50 °C |
Engine
| Oil capacity | 31.04 L |
|---|---|
| Coolant capacity | 83.3 L |
| Displacement | 11.9 L |
| Aspiration | Turbocharged and Aftercooled |
| Rated speed | 2280 rpm |
Maintenance & consumables
for the Generac 12.0 DTA| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Dry | — | |||
| Fuel filter | Optional | — | |||
| Oil filter | full flow and bypass | — | |||
| Coolant | Pressurized, Closed Recovery | 83.3 liters | — |
Service specifications
7| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Other | Piston speed | 11.4 | m/sec. | 60 Hz |
| Pressure | BMEP | 264 | psi | 60 Hz |
| Pressure | Max. external pressure drop after radiator | 0.5 | in. H2O | |
| Pressure | Maximum recommended back pressure (exhaust) | 5.1 | kPa | at rated output |
| Speed | Coolant flow/min. | 223 | liters/min | 60 Hz |
| Speed | Rated RPM (engine, each) | 2280 | rpm | 60 Hz |
| Temperature | Exhaust temperature at rated output (pre-turbo) | 732 | °C | at rated output |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Recommended fluids
| Fluid | Grade | Standard | Ambient | Capacity | Notes |
|---|---|---|---|---|---|
| Fuel | #2D (Min. Cetane #40) | Fuel pump lift 40 in. |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Procedures
1Typical Operational Sequence operation
- A transfer switch in the PM-DCP configuration detects a utility failure and issues a start command.
- The command goes to the PM-SC which issues a start command to the PM-PCs.
- Each generator will start on its own.
- The first generator attaining rated frequency and voltage connects to the common generator bus via the switching mechanism.
- The second generator synchronizes and closes into the bus via the switching mechanism.
- When both gensets are paralleled to the bus, the PM-SC signals transfer switches to transfer to the load in up to 3 programmed steps.
- If an NFPA 10 second start requirement exists, the first unit connects to the bus so a separate emergency transfer switch transfers to the NFPA load.
- If a single generator fails, load shed contacts disconnect selected non critical loads.
- If load conditions are reduced (night time operation), one generator can be programmed off line (optional).
- When utility returns, PM-SC transfers loads back to utility and commands individual PM-PCs to disconnect from the bus.
- Each PM-PC operates its generator for the cool-down period and then issues a shutdown command.
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Common questions
What size generator is the Generac MD750 - GEM?
The Generac MD750 - GEM is rated 750 kW standby.
What engine does the Generac MD750 - GEM use?
The Generac MD750 - GEM is powered by the Generac 12.0 DTA engine.
What fuel does the Generac MD750 - GEM use?
The Generac MD750 - GEM runs on #2D Diesel.
How much oil does the Generac MD750 - GEM take?
The Generac 12.0 DTA engine in the Generac MD750 - GEM has an oil capacity of 31.04 liters.
What is the cooling system capacity of the Generac MD750 - GEM?
The Generac MD750 - GEM cooling system holds 83.3 liters (22.0 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.
What voltage does the Generac MD750 - GEM produce?
The Generac MD750 - GEM is offered in 277/480 V, 600 V, 3-phase-phase.
What battery does the Generac MD750 - GEM use?
The Generac MD750 - GEM uses 2 batteryies, 12V V each, 700 CCA, group 27F, per the manufacturer specification sheet.
Repair guides
1Step-by-step procedures compiled from the Generac service manual for this model.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Standby | 25% | 68.14 | 18.0 |
| Standby | 50% | 128.7 | 34.0 |
| Standby | 75% | 184.73 | 48.8 |
| Standby | 100% | 238.48 | 63.0 |
Available documents
This page was generated from the 2 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.