QSK78 Cummins Diesel Generator

In general, the diesel generator is an ideal option to meet the electrical needs of large industries and projects, with its high power and performance, resistance to harsh conditions and high quality of structure.

Control system 

The PowerCommand control system is an integrated microprocessor based generator set control system providing voltage regulation, engine protection, alternator protection, operator interface and isochronous governing. 

AmpSentry – Includes integral AmpSentry protection, which provides a full range of alternator protection functions that are matched to the alternator provided.

Power management – Control function provides battery monitoring and testing features and smart starting control system. 

Advanced control methodology – Three phase sensing, full wave rectified voltage regulation, with a PWM output for stable operation with all load types.

Communications interface – Control comes standard with PCCNet and Modbus interface. 

Regulation compliant – Prototype tested: UL, CSA and CE compliant. 

Service - InPower PC-based service tool available for detailed diagnostics, setup, data logging and fault simulation. 

Reliable design – The control system is designed for reliable operation in harsh environment. 

Multi-language support

Operator panel features 

Operator panel features – The operator panel, in addition to the alternator, displays the Utility/AC Bus data. 

Operator/display functions 

• 320 x 240 pixels graphic LED backlight LCD 
• Auto, manual, start, stop, fault reset and lamp test/panel lamp switches 
• Alpha-numeric display with pushbuttons 
• LED lamps indicating genset running, remote start, not in auto, common shutdown, common warning, manual run mode, auto mode and stop 

Paralleling control functions 

• Digital frequency synchronization and voltage matching 
• Isochronous kW and kvar load sharing controls 
• Droop kW and kvar control 
• Sync check 
• Extended paralleling (Peak Shave/Base Load) 
• Digital power transfer control (AMF) provides load transfer operation in open or closed transition or soft (ramping) transfer mode

Features & Benefits

Cummins heavy-duty engine - Rugged 4- cycle industrial diesel delivers reliable power, low emissions and fast response to load changes.

Permanent Magnet Generator (PMG) - Offers enhanced motor starting and fault clearing short circuit capability.

Alternator - Several alternator sizes offer selectable motor starting capability with low reactance 2/3 pitch windings; low waveform distortion with non-linear loads, fault clearing short-circuits capability, and class F or H insulation.

Cooling system - Optional remote mounted cooling system, designed and tested for rated ambient temperatures, offers maximum flexibility for facility design requirements.

Control system - Standard PowerCommand® electronic control provides total system integration including remote start/stop, precise frequency and voltage regulation, alarm and status message display, AmpSentry protection, output metering, auto-shutdown at fault detection and NFPA 110 Level 1 compliance.

NFPA - The genset accepts full rated load in a single step in accordance with NFPA 110 for Level 1 systems. 

Warranty and service - Backed by a comprehensive warranty and worldwide distributor network.

Specifications

• Design: 4 cycle, V, turbo charged and low temperature after-cooled
• Bore: 170
• Stroke: 190
• Displacement: 77.6 L (4735 in3)
• Cylinder block: Cast iron, 18 cylinder
• Battery capacity: 1400 A
• Battery charging alternator: 55 amps
• Starting voltage: 24-volt, negative ground
• Fuel system: Direct injection: number 2 diesel fuel, fuel filter, automatic electric fuel shutoff
• Fuel filter: Triple element, 10 micron filtration, spin on fuel filter with water separator
• Air cleaner type: Dry replaceable element
• Lube oil filter type(s): Four spin-on, combination full flow and bypass filters
• Cooling system: 104 ºF (40 ºC) ambient