Gas generator set HSK78G

natural gassingle-phasethree-phase

Overview
The HSK78G series by Cummins provides a complete gas generator solution engineered for prime and peaking power applications. Designed from the skid up, the HSK78G delivers reliable electrical output across a wide range of fuel qualities and operating conditions.

Key Highlights

• Frequency: 50 Hz and 60 Hz
• Rated continuous power: 1600–2000 kW (up to 2500 kVA)
• Global compliance and certifications
• Product availability: Africa & Middle East, Asia Pacific, Europe, India, Latin America, North America

Applications

• Prime power
• Cogeneration / combined heat and power (CHP)

Target Industries

• Commercial & institutional
• Utility
• Industrial
• Airports
• Landfills
• Mining
• Universities
• Waste water treatment plants
• Manufacturing
• Prison bases
• Grid firming
• Oil & gas
• Shopping malls
• Anaerobic digesters
• Greenhouses
• Independent power producers
• Agriculture

Features & Benefits
Peak Electrical Efficiency

• Up to 44.2% (50 Hz) and 43.5% (60 Hz) ISO electrical efficiency*
• Operates on pipeline natural gas down to 70 MN without power loss
• Automatic engine adjustments for fuel quality changes and rapid load steps without engine shutdown
• Improved stability, higher uptime and reduced fuel costs lower total cost of ownership

Game-Changing Fuel Flexibility

• High power density on fuels down to 40 MN
• Accepts a wide range of low-cost and waste-derived fuels
• New models handle low-BTU and contaminated fuels with reduced derating
• No dedicated space required for gas-cleaning systems
• Lower capital and operating expenses

Extreme Dependability
Full power capability up to 40°C (104°F) with standard turbo; up to 55°C (131°F) with high-ambient turbo to accommodate site temperature and atmospheric conditions.

Market-Leading Combined Heat & Power
Thermal efficiency up to 47.1% and up to 2110 kW usable thermal output for heating, cooling and steam generation, enabling footprint and emissions advantages.

Industry Leading Service Cycles

• Major overhaul cycle: up to ~80,000 operating hours
• Onboard predictive diagnostics including spark plug and NOx sensors and real-time trend data to minimize downtime

Global Compliance

• NOx as low as 250 mg/Nm³ (0.5 g/hp-hr) without aftertreatment (50 Hz)
• 30% load step capability with four-step load transitions for superior transient performance

60 Hz Compliance (USA / Canada)

• USA: NSPS-capable; UL certified and marked (UL2200); compliant with NFPA 70, NFPA 37, NFPA 110 (level/type TBD)
• Canada: CSA certified and marked (CSA C22.2 No.14 & No.100); compliant with CSA C22.1, CSA B149, CSA C282 and CSA Z32

50 Hz Compliance

• Australia: compliant with AS/NZS 3000, AS/NZS 3814, AS/NZS 3009
• EU & Asia: CE marked; EU grid code compliant and certified
• Russia: EAC marked
• Nigeria: SONCAP

Notes
*GCC available on 50 Hz only

Technical specifications

• Series / Engine: HSK78G Gas Generator Series
• Frequency options: 50 Hz and 60 Hz
• Rated continuous power ranges: 1600–2000 kW (continuous) and up to 2500 kVA
• Pipeline natural gas (ISO) electrical efficiency by model: C1600N5CD 43.8%; C1800N5CD 44.3%; C2000N5CD 44.2%; C1600N6CD 43.2%; C1800N6CD 43.6%; C2000N6CD 43.5%
• ISO thermal efficiency by model: C1600N5CD 47.7%; C1800N5CD 46.8%; C2000N5CD 45.9%; C1600N6CD 47.3%; C1800N6CD 46.3%; C2000N6CD 45.4%
• ISO fuel consumption (kW) by model: C1600N5CD 3652; C1800N5CD 4066; C2000N5CD 4530; C1600N6CD 3707; C1800N6CD 4128; C2000N6CD 4599
• Usable heat (kW) by model: C1600N5CD 1740; C1800N5CD 1901; C2000N5CD 2077; C1600N6CD 1752; C1800N6CD 1912; C2000N6CD 2088
• Minimum Methane Number by model: C1600N5CD 55; C1800N5CD 60; C2000N5CD 70; C1600N6CD 55; C1800N6CD 60; C2000N6CD 70
• Low BTU (550 BTU/scf) ISO electrical efficiency by model: C1600N5CD 42.7%; C1800N5CD 43.2%; C2000N5CD 43.2%; C1600N6CD 42.1%; C1800N6CD 42.5%; C2000N6CD 42.6%
• Low BTU energy content: 550 BTU/scf
• Dimensions (L×W×H, m): 50 Hz models (C1600N5CD/C1800N5CD/C2000N5CD) 6.9×2.2×2.8 m; 60 Hz models (C1600N6CD/C1800N6CD/C2000N6CD) 7.6×2.1×2.8 m
• Typical temperature rise: 80–105 °C
• NOx emissions indicated: 50 Hz models 250–500 mg/Nm³; 60 Hz models 0.5–1.0 g/hp-hr (as presented)
• Data sheet identifiers: D-6405, D-6401, D-6399, D-6417, D-6413, D-6409, D-6429, D-6425, D-6421
• Fuel type: Lean-burn gas, optimized for wide gas variation including low-BTU and contaminated fuels
• Service / maintenance: major overhaul ~80,000 hours; onboard diagnostics with spark plug and NOx sensors for predictive maintenance