Specifications
| Fuel | Diesel |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 1750 kW |
| Prime power | 1600 kW |
| Emissions | Tier 2 |
| Controller | PowerCommand 3.3 |
| Oil capacity | 334 L (352.9 US qt) |
| Alternator | P734F |
| Voltage options | 346/600 V, 220/380 V, 240/416 V, 254/440 V, 277/480 V |
| Phase | 3 |
| Power factor | 0.8 |
| Circuit breaker | 2500 A |
| Max ambient | 60.3 °C |
| Sound level | 99.4 dBA @ 7 m |
Engine
| Oil capacity | 334 L (352.9 US qt) |
|---|---|
| Coolant capacity | 492.0 L |
| Displacement | 60.2 L |
| Aspiration | Turbocharged and low temperature after-cooled |
| Rated speed | 1800 rpm |
Filters for the Cummins/Onan QSK60-G6 NR2
3Engine-mounted filters the filter manufacturers list for this engine family. These come from the engine, not from this generator set’s own parts list, so confirm against your serial number before ordering.
| System | Filter | Description | Cross-references | |
|---|---|---|---|---|
| Fuel / water separator | P552006 | Fuel Filter, Water Separator Spin-On Twist&Drain | CUMMINS 3089916, CUMMINS 4095189, NAPA 3645, BALDWIN BF1262 | FridayParts $42.88 |
Listed for this engine in only one kind of machine, so they may depend on how the engine was installed:
| System | Filter | Description | Cross-references | |
|---|---|---|---|---|
| Oil filter | P550596 | Lube Filter, Spin-On Full Flow | BALDWIN B7217, WALGAHN-MOTORENTECHN 00811323, M.D.F. SARL 025366, HITACHI 113240232 | KuduParts $48.00 FridayParts $49.99 |
| Coolant filter | P552071 | Coolant Filter, Spin-On Sca Plus | CUMMINS 299080, CUMMINS 299880, NAPA 4071, TORO 012706560 | FridayParts $37.53 |
Maintenance & consumables
for the Cummins/Onan QSK60-G6 NR2| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Dry replaceable element | — | |||
| Fuel filter | Dual element, 10 micron filtration, spin-on fuel filters with 15 micron water separator | — | |||
| Oil filter | Four spin-on, combination full flow filter and bypass filters | — | |||
| Battery | 2200 amps minimum at -18C to 0C ambient, 24 volt negative ground | — | |||
| Coolant | Coolant capacity with standard set-mounted radiator | 492.0 L | — | ||
| Oil | Lube oil capacity | 334 L (352.9 US qt) | — |
Service specifications
39| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Other | AC waveform THD (THDV) | < 5 | % | no load to full linear load |
| Other | BMEP at set rated load (prime) | 1885 | kPa | prime rating |
| Other | BMEP at set rated load (standby) | 2109 | kPa | standby rating |
| Other | Breaker fail to synchronize default time delay | 120 | s | adjustable 10–900 s |
| Other | Derate above 1402 m (4600 ft) / 40 °C | 4.5% per 305 m (1000 ft) and 11.0% per 10 °C (18 °F) | standby and prime | |
| Other | High AC voltage shutdown default | 110% | % of nominal voltage | for 10 s; adjustable 105–125%, 0.1–10 s |
| Other | Instantaneous pickup (Ii) range (Micrologic 3.0 and 5.0) | 1.5–12 x In | x In | |
| Other | Long-time delay tr | 0.5–24 | s | at 6 x Ir |
| Other | Long-time pickup (Ir) adjustment range | 0.4–1.0 x In | x In | sensor plug rating In |
| Other | Low AC voltage shutdown default | 85% | % of reference voltage | for 10 s; adjustable 50–95%, 2–20 s |
| Other | Over frequency shutdown/warning default | 6 | Hz above nominal | for 20 s, disabled; adjustable 2–10 Hz above set point, 1–20 s |
| Other | Over load (kW) warning default | 105% | % of rated kW | adjustment range 80–140%, 0–120 s delay; default 60 s |
| Other | Piston speed | 11.4 | m/s | |
| Other | Reverse Var shutdown default | 20% | % of rated Var | for 10 s; adjustable 15–50%, 10–60 s |
| Other | Reverse power shutdown default | 10% | % of standby kW | for 3 s; adjustable 5–20%, 1–15 s |
| Other | Short circuit protection threshold | 175% | % of rating | output current on any phase |
| Other | Telephone Harmonic Factor (THF) | < 3 | ||
| Other | Telephone Influence Factor (TIF) | < 50 | per NEMA MG1-22.43 | |
| Other | Under frequency shutdown default | 6 | Hz below reference | for 10 s; adjustable 2–10 Hz below set point, 5–20 s |
| Other | Wire stripping length | 1.38 In (35 mm) | in | |
| Pressure | Maximum air cleaner restriction | 6.2 | kPa | |
| Pressure | Maximum back pressure | 6.8 | kPa | exhaust |
| Pressure | Maximum cooling air flow static restriction | 0.12 | kPa | |
| Pressure | Maximum fuel inlet restriction | 30 | kPa | |
| Pressure | Maximum fuel return line restriction | 34 | kPa | |
| Speed | Frequency regulation | Isochronous | ||
| Speed | Overspeed limit | 2100 ±50 | rpm | |
| Speed | Random frequency variation | ± 0.25 | % | |
| Speed | Rated speed | 1800 | rpm | 60 Hz |
| Temperature | Ambient design (standard set-mounted radiator) | 50 | °C | |
| Temperature | Exhaust temperature at set rated load (prime) | 463 | °C | prime |
| Temperature | Exhaust temperature at set rated load (standby) | 469 | °C | standby |
| Temperature | Maximum aftercooler inlet temp | 49 | °C | |
| Temperature | Maximum fuel inlet temperature | 71 | °C | |
| Temperature | Maximum jacket water outlet temp (remote radiator) | 104 | °C | standby |
| Torque | Circuit breaker terminal tightening torque (AWG 1/0...750 kcmil) | 548.75 Lbf.In (62 N.m) | Lbf.In | 0.08…0.62 in² (50…400 mm²) |
| Voltage | Random voltage variation | ± 0.5 | % | |
| Voltage | Standard temperature rise | 150 | °C | Standby at 40 °C ambient |
| Voltage | Voltage regulation, no load to full load | ± 0.5 | % |
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 | ASTM D975 No. 2-D | ASTM D975 | Cetane number: 40-50. 300-500 ppm Sulfur. Fuel inlet temperature 40°C (104°F) reference. |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Fault codes
10| Code | Name | Meaning | Severity | Action |
|---|---|---|---|---|
| 27 | Low AC voltage shutdown | Voltage on any phase has dropped below a preset value. | Shutdown | Adjustable 50-95% of reference voltage, time delay 2-20 seconds; default 85% for 10 seconds. |
| 32 | Reverse power shutdown | Reverse power detected. | Shutdown | Adjustment range 5-20% of standby kW rating, delay 1-15 seconds; default 10%, 3 seconds. |
| 40 | Reverse Var shutdown | Reverse reactive power detected. | Shutdown | Adjustable 15-50% of rated Var output, delay 10-60 seconds; default 20%, 10 seconds. |
| 46 | Negative sequence overcurrent warning | Excessive imbalances in the three phase load currents and/or power factors. | Warning | Control protects generator from damage due to phase imbalance. |
| 51 | Overcurrent warning/shutdown | Implementation of the thermal damage curve with instantaneous trip level based on CT ratio and application power rating. | Shutdown | AmpSentry protective relay action; see document R1053 time over current curve. |
| 51G | Ground fault overcurrent | Detects a ground fault via external ground fault relay contact input or measured ground current from external CT. | Shutdown | Time delays and thresholds adjustable via InPower or HMI. |
| 59 | High AC voltage shutdown | Output voltage on any phase exceeds preset values; trip time inversely proportional to amount above threshold. | Shutdown | Adjustable 105-125% of nominal voltage, time delay 0.1-10 seconds; default 110% for 10 seconds. |
| 81 u | Under Frequency Shutdown | Genset output frequency cannot be maintained. Adjustable 2-10 Hz below reference governor set point, time delay 5-20 s. Default 6 Hz, 10 s. | Shutdown | |
| 81o | Over frequency shutdown/warning | Genset is operating at a potentially damaging frequency level. | Warning | Adjustable 2-10 Hz above nominal governor set point, 1-20 second delay; default 6 Hz, 20 seconds, disabled. |
| 81u | Under frequency shutdown | Genset output frequency cannot be maintained. | Shutdown | Adjustable 2-10 Hz below reference governor set point, 5-20 second delay; default 6 Hz, 10 seconds. |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Procedures
3Trip Unit Operation Verification diagnostic
Tools: Trip unit test kit
- Connect a test kit to the trip unit test plug receptacle.
- Perform verification tests per instructions shipped with the test kit to verify trip unit functions.
Battery replacement / battery rack installation maintenance
- Isolate DC supply before working on battery connections.
- Install battery rack with hold-down, floor standing.
- Install battery with minimum 2200 amps capacity at -18 °C to 0 °C.
- Verify 24 volt negative ground connection.
Trip Unit Switch Adjustment operation
⚠ Wait a minimum of 15 minutes after circuit breaker trips before resetting to allow thermal imaging to reset completely to zero.
Tools: Wire seal MICROTUSEAL
- Open switch cover.
- Adjust the appropriate switches to desired values.
- Replace switch cover.
- Use wire seal MICROTUSEAL, if necessary, to provide tamper evidence.
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Voltage reconnection
| Voltage | Phase | Connection | Leads | Notes |
|---|---|---|---|---|
| 12470-13800 | 3 | Wye, 3-phase | Winding no. 6062 | Temp rise 125/105/80 °C; ADS-521; feature code B448; max surge kVA 91 |
| 220/380 | 3 | 6 leads | 6 | Winding no. 13; 125°C rise rating 2004 kW / 2505 kVA; stator resistance L-L 0.00102 Ohms; rotor resistance 2.31 Ohms @22°C |
| 240/416 | 3 | 6 leads | 6 | Winding no. 13; 125°C rise rating 2004 kW / 2505 kVA; stator resistance L-L 0.00102 Ohms; rotor resistance 2.31 Ohms @22°C |
| 254/440 | 3 | 6 leads | 6 | Winding no. 312; 125°C rise rating 2000 kW / 2500 kVA; stator resistance L-L 0.00152 Ohms; rotor resistance 2.31 Ohms @22°C |
| 277/480 | 3 | 6 leads | 6 | Winding no. 312; 125°C rise rating 2080 kW / 2600 kVA; stator resistance L-L 0.00152 Ohms; rotor resistance 2.31 Ohms @22°C |
| 277/480 | 3 | Wye, 4 Wire | Feature code R002-2 Voltage-277/480, 3 Phase, Wye, 4 Wire | |
| 346/600 | 3 | 6 leads | 6 | Winding no. 07; 125°C rise rating 2080 kW / 2600 kVA; stator resistance L-L 0.00220 Ohms; rotor resistance 2.31 Ohms @22°C |
| 380 | 3 | Wye, 3-phase | Winding no. 7327 | Temp rise 150/125/105 °C; ADS-335; feature code B595; max surge kVA 312 |
| 4160 | 3 | Wye, 3-phase | Winding no. 6307 | Temp rise 125/105/80 °C; ADS-324; feature code B467; max surge kVA 51 |
| 480 | 3 | Wye, 3-phase | Winding no. 7361 | Temp rise 125/105/80 °C; ADS-333; feature code B462; max surge kVA 312 |
| 600 | 3 | Wye, 3-phase | Winding no. 7361 | Temp rise 125/105/80 °C; ADS-333; feature code B465; max surge kVA 07 |
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 Cummins/Onan 1750DQKAA?
The Cummins/Onan 1750DQKAA is rated 1750 kW standby.
What engine is in the Cummins/Onan 1750DQKAA?
The Cummins/Onan 1750DQKAA is powered by the Cummins/Onan QSK60-G6 NR2 engine.
What fuel does the Cummins/Onan 1750DQKAA use?
The Cummins/Onan 1750DQKAA runs on Diesel.
How much oil does the Cummins/Onan 1750DQKAA take?
The Cummins/Onan 1750DQKAA takes 334 L (352.9 US qt) of engine oil (Cummins/Onan QSK60-G6 NR2 engine specification).
What is the coolant capacity of the Cummins/Onan 1750DQKAA?
The Cummins/Onan 1750DQKAA cooling system holds 492 liters (130.0 US gallons) for the engine, per the manufacturer specification sheet.
What is the prime power rating of the Cummins/Onan 1750DQKAA?
The Cummins/Onan 1750DQKAA is rated 1600 kW prime, against 1750 kW standby.
How loud is the Cummins/Onan 1750DQKAA?
The Cummins/Onan 1750DQKAA is rated at 99.4 dBA at 7 m, per the manufacturer specification sheet.
What voltage does the Cummins/Onan 1750DQKAA produce?
The Cummins/Onan 1750DQKAA is offered in 346/600 V, 220/380 V, 240/416 V, 254/440 V, 277/480 V, 3-phase.
What alternator does the Cummins/Onan 1750DQKAA use?
The Cummins/Onan 1750DQKAA uses a P734F alternator.
Troubleshooting
4Symptoms & remedies
| Symptom | Remedy |
|---|---|
| Battle short mode | Please refer to the Control Application Guide or Manual for list of these faults. |
| Derate | The Derate function reduces output power of the genset in response to a fault condition. If a Derate command occurs while operating on an isolated bus, the control will issue commands to reduce the load on the genset via contact closures or Modbus. If a Derate command occurs while in utility parallel mode, the control will actively reduce power by lowering the base load kW to the derated target kW. |
| Emergency stop | Annunciated whenever either emergency stop signal is received from external switch. |
| General prime mover protection - Low and high battery voltage warning | Indicates status of battery charging system (failure) by continuously monitoring battery voltage. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Repair guides
2Step-by-step procedures compiled from the Cummins/Onan service manual for this model.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Prime | 25% | 159.0 | 42.0 |
| Prime | 50% | 246.0 | 65.0 |
| Prime | 75% | 337.0 | 89.0 |
| Prime | 100% | 424.0 | 112.0 |
| Standby | 25% | 167.0 | 44.0 |
| Standby | 50% | 261.0 | 69.0 |
| Standby | 75% | 356.0 | 94.0 |
| Standby | 100% | 458.0 | 121.0 |
Source — consumption: New-Cummins-DQKAA-submittal.
Available documents
Spec sheet — New-Cummins-DQKAA-submittal (Cummins/Onan)
This page was generated from the 1 manufacturer document above by automated extraction; every figure shown is copied from one of them. How the data is compiled.