25KVA 3-Phase Diesel Generator (Rental Spec)

General Features:

Kubota engine V2403-M-DI-BG-BBT
Close-coupled to Leroy Somer LSA alternator LSA40M7
DSE 4520 MKII controller
SCHNEIDER main circuit breaker: 32 A
Electronic speed governor
Self-excited excitation system
AVR
Key switch
Emergency stop switch
ATS (automatic transfer switch) receptacle
Convenience receptacles: 3-phase and 1-phase
1 × 12 V / 72 Ah sealed-for-life maintenance-free battery
Lockable battery isolator switch
Powder-coated canopy
50 °C radiator
Oil pump on 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 22 hours running
Drain points for fuel tank
Operation Manual / Specifications

Equipment Specification:

Model: PR25K-SAE
Structure type: RS (sound-proof)
Fuel tank capacity: 120 L
Dry weight: 795 kg
Noise level 7 m: 65.1 dBA
Dimensions (L × W × H): 2 132 × 750 × 1 200.5 mm
Standby power: 25.3 kVA / 20.24 kW
Prime power: 23 kVA / 18.4 kW

Diesel Engine:

Manufacturer/Brand: Kubota
Model: V2403-M-DI-BG-BBT
Dimensions (L × W × H): 667.1 × 507.1 × 635.0 mm
Dry weight (approx.): 184 kg
Number of cylinders: 4
Bore × Stroke: 87 mm × 102.4 mm
Displacement: 2.434 L
Compression ratio: 23.8
Type of injection: Direct injection
Intake system: Natural aspirated
Intake resistance: 1.96 kPa
Cooling system: Water-cooled
Fan: Pusher
Battery voltage: 12 V
Type of fuel: No. 2-D (ASTM D975)
Type of oil: Class CF lubricating oil
Oil capacity: 7.5 L
Type of coolant: Glycol mixture
Coolant capacity: 7.1 L
Back pressure: 7.07 kPa
Standby power: 20.24 kW
Continuous power: 18.4 kW
Fuel consumption (100 % load): 5.5 L/h

Alternator:

Manufacturer/Brand: Leroy Somer
Model: LSA40M7
Exciter: Brushless
Cooling fan: Synthetic plastic
Windings: 100 % copper
Insulation class: H
Winding pitch: 2/3
Terminals: 12
Protection: IP23
Altitude: ? 1 000 m
Overspeed: 2 250 rpm
Air flow: 0.06 m³/s (50 Hz) / 0.072 m³/s (60 Hz)
Voltage regulation: ±0.5 %
Total harmonic distortion (TGH/THC): < 3.0 % (no load) / < 5 % (on load)
Telephone interference: THF < 2 %; TIF < 50

Control System – DSE 4520 MKII:
The DSE 4520 MKII is a microprocessor-based Auto Start control module that provides full engine and generator monitoring, automatic start/stop control, and comprehensive protection functions via the front-panel push-buttons and LCD display.
Key Features

Manual / Auto / Stop modes
Automatic engine start and stop
Full engine and generator instrumentation
Multiple protection and shutdown functions
Configurable inputs and outputs
Event and alarm logging
Compatible with electronic and mechanical engines

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

Overall Dimensions & Access Points:

Overall size: 2 132 mm (L) × 750 mm (W) × 1 200.5 mm (H)
Key external features include:
Exhaust gas outlet
Coolant inlet
Roping / lifting lugs
Air inlet
Base frame with fork-lift channels
Cable trench
Control cabinet
Fuel drain
Access doors
Tie-down points
Oil drain hose fitting
Coolant drain hose fitting


Control & Field Wiring Cabinet Layout:

Charge indicator
Control cabinet lamp switch & lamp
DSE 4520 MKII control module
Key switch
Time counter / hour meter
Fuel level meter
Voltmeter change-over switch
Voltage meter
RCD
Circuit breaker of 3-phase convenience receptacle
Circuit breakers of single-phase convenience receptacles
Main circuit breaker
2 × single-phase convenience receptacles
1 × three-phase convenience receptacle
Emergency stop switch
Remote control / ATS communication connector
Mains input / Remote control communication connector
Live wire terminals
Neutral wire terminal