General Features:
Cummins engine 6CTAA8.3-G2
Close-coupled to LSA alternator LSA44.3VL14
DSE 7420 MKII controller
ABB main circuit breaker: 320 A, 4P
Electronic speed governor (EFC)
Self-excited excitation system (Shunt)
AVR model: R250
Key switch
Emergency stop switch
ATS (automatic transfer switch) receptacle
Remote run connector
2 × 12 V / 120 Ah sealed-for-life maintenance-free batteries
Lockable battery isolator switch
Powder-coated canopy
50 °C radiator
Oil pump on the engine
Non-returning valve for fuel inlet hose of the engine
Steel base frame with fork slots
Vibration isolators between engine/alternator and base frame
Dry-type air filter
Base fuel tank for approximately 25 hours running
Drain points for fuel tank
Breather valve for fuel tank
Operation Manual / Specifications
Equipment Specification:
Model: PR220C-SAE
Structure type: R (sound-proof)
Fuel tank capacity: 1 150 L
Dry weight: 2 860 kg
Noise level 7 m: 74.3 dBA
Dimensions (L × W × H): 3 580 × 1 122 × 2 302 mm
Standby power: 220 kVA / 176 kW
Prime power: 200 kVA / 160 kW
Voltage / Ampere: 415 V / 278 A
Diesel Engine:
Manufacturer/Brand: Cummins
Model: 6CTAA8.3-G2
Dimensions (L × W × H): 1 485.3 × 866.5 × 1 245.0 mm
Dry weight (approx.): 684 kg
Number of cylinders: 6
Bore × Stroke: 114 mm × 135 mm
Displacement: 8.3 L
Compression ratio: 17.3
Type of injection: Direct injection
Intake system: Charge Air Cooled
Intake resistance: ? 6.28 kPa
Cooling system: Water-cooled
Fan: Pusher
Battery voltage: 12/24 V
Type of fuel: Diesel
Type of oil: ACEA E2, API CF, CF-4, CG-4
Oil capacity: 23.8 L
Type of coolant: Glycol mixture
Coolant capacity (engine only): 12.3 L
Back pressure: ? 10.1 kPa
Standby power: 203 kW
Prime power: 183 kW
Fuel consumption (100 % load): 45.0 L/h
Alternator:
Manufacturer/Brand: LSA (Leroy-Somer)
Model: LSA44.3VL14
Exciter: Brushless
Cooling fan: Cast alloy aluminium
Windings: 100 % copper
Insulation class: H
Winding pitch: 2/3
Terminals: 12
Protection: IP23
Altitude: ? 1 000 m
Overspeed: 2 250 rpm
Air flow: 0.514 m³/s (50 Hz) / 0.617 m³/s (60 Hz)
Voltage regulation: ±1.0 %
Total harmonic distortion (TGH/THC): < 1.5 % (no load) / < 5 % (on load)
Telephone interference: THF < 2 %; TIF < 50
Control System – DSE 7420 MKII:
The DSE 7420 MKII is an advanced Auto Mains Failure (AMF) control module based on microprocessor technology. It provides comprehensive monitoring and control of both the generator set and the mains supply, with automatic start/stop, load transfer, and extensive protection functions. All operational parameters, status information and alarms are clearly displayed on the LCD.
Key Features
Microprocessor control with high stability and reliability
Monitoring and measuring of mains supply and genset operational parameters
Manual, Automatic and Remote operating modes
Real-time clock with date/time display and overall runtime
Event logging (up to 250 log entries)
Overall power output display
Integral speed/frequency detection
Communication with PC via RS485 or RS232 using MODBUS protocol
Multiple configurable inputs and outputs
Standard Protection / Monitoring Functions:
Low oil pressure
High engine temperature
Overspeed / Underspeed
Charge failure
Auxiliary shutdown
Emergency stop
Battery voltage monitoring
Generator voltage and frequency monitoring
Mains supply monitoring and automatic transfer control
Multiple additional engine and electrical protections
Overall Dimensions & Access Points:
Overall size: 3 580 mm (L) × 1 122 mm (W) × 2 302 mm (H)
Key external features follow the standard PR series sound-proof canopy layout, including control cabinet, emergency stop, fuel drains, fork-lift channels, lifting points, air inlets/outlets, exhaust outlet, and coolant/fuel fittings.
Control & Field Wiring Cabinet Layout:
Charge indicator
Control cabinet lamp
DSE 7420 MKII control module
Main circuit breaker
Live wire terminals
Neutral wire terminal
Ground wire terminal
Emergency stop button
Key switch
Time counter / hour meter