AC50-6

50 kVA / 40 kW
POWERED by CUMMINS

DIESEL GENERATING SET 480/277V, 440/254V, 380/220V, 220/127V- 60 Hz-3 Phase

MODEL AC50-6
kVA 50
Standby
Power kW 40
Pf. 0.8 kVA 45
Prime
kW 36

Standby: Continuous running at variable load for duration of an emergency. No overload is permitted on these ratings. In accordance with ISO 3046 .
Prime: Continuous running at variable load for unlimited periods with 10% overload available for 1 hour in any 12 hour period. In accordance with ISO 8528,ISO 3046.

 High quality, reliable and complete power unit

 Compact design
 Easy start and maintenance possibility
 Every generating set is subject to a comprehensive test program which includes full load testing, checking and provision of all
control and safety shut down functions testing
 Fully engineered with a wide range of options and accessories: Canopy, sound proof canopy and on-road trailer

Manufacturer reserves the right to make changes in model, technical specifications, color, equipment and accessories without prior notice.
 ENGINE

CUMMINS
Model 4BT3.9G2

Engine Power Output kWm 44

at rated rpm HP 59
Aspiration and Cooling Turbocharged
Total Displacement Litre 3.9
No. of Cylinders and Build 4 - Inline
Engine Speed rpm 1800
Bore and Stroke mmxmm 102x120
Compression Ratio 18:1
Governor Electronic
Fuel Consumption at full load L/hr 10.7
Fuel Tank Capacity Litre Open: 90/Canopy: 90
Oil Capacity Litre 10.9
Coolant Capacity Litre 20
Radiator Cooling Air m³/min 120
Air Intake – Engine m³/min 3.258
Exhaust Gas Flow m³/min 6.48

 Heavy duty Cummins diesel engine  Cooling radiator and fan

 Four stroke, water cooled, turbocharged  Starter battery (with lead acid) including Rack and Cables
 Direct injection fuel system  Flexible fuel connection hoses and manual oil sump drain valve
 Electronic Governor system  Industrial capacity exhaust silencer and steel bellows
 12/24 V D.C. starter and charge alternator  Jacket water heater(at automatic models)
 Replaceable fuel filter, oil filter and dry element air filter  Operation manuals and circuit diagram documents

ALTERNATOR
Design Brushless single bearing, revolving field
Stator 2/3 pitch
Rotor Single bearing, flexible disc
Insulation System Class H
Standard Temperature Rise 125 - 163°C Continuous
Exciter Type Self Excited
Phase Rotation A (U), B (V), C (W)
Alternator Cooling Direct drive centrifugal blower fan
AC Waveform Total Harmonic Distortion No load < 1.5%. Non distorting balanced linear load < 5%
Telephone Influence Factor (TIF) <50 per NEMA MG1-22.43
Telephone Harmonic Factor (THF) <2%

 Brushless, single bearing system, flexible disc, 4 poles  Impregnation with tropicalised epoxy varnish
 Insulation class H  Solid state Automatic Voltage Regulator
 Standard degree of protection IP21 (*IP22/IP23 is available.)  Stator winding with 2/3 pitch for improved harmonics
 Self-exciting and self-regulating
 CONTROL SYSTEM

Control supervision and protection panel is mounted on the genset base frame.
The control panel is equipped as follows:

1. Auto Mains Failure Control Panel

Panel equipments:
 Control with AMF module
 Static battery charger
 Emergency stop push button
DSE 6020

a) Generating set control module DSE 6020 features: c) Alarms:

 The module is used to monitor main supply and  Over and Under Speed
starts and stops of a standby generating set  Low and High Battery Volt.
 Micro-processor based design  Start and Stop Failure
 Automatic control of main and generator contactors  Charge fail
 Monitors engine performance and AC power output LED  Over Current
alarm indication  Under / Over Generator Voltage
 Front panel configuration of timers and alarm trip points  Low Oil Pressure
 CAN and magnetic pick-up versions(specify on ordering)  Emergency stop
 4 digital inputs/3 analogue inputs  High engine temperature
 6 outputs(4 configurable on Magnetic Pick-up, 6 configurable on d) LED indications
CANbus version)  Mains available
 Easy push button control  Generator available
STOP/RESET - MANUAL - AUTO - TEST – START  Mains on load
b) Metering via LED display:  Generator on load
 Generator Volts (L-L / L-N) Generator kVA
 Engine oil pressure (PSI-Bar) Generator kW
 Generator Ampere (L1,L2,L3) Generator Cos (σ) 2. Power Outlet Terminal Board Mounted
 Engine temperature (°C&°F) on the Gen-set Base Frame
 Generator Frequency (Hz)
 Plant battery volts
 Engine hours run
 Mains Volts (Ph-Ph/Ph-N)
CHASSIS

 The complete gen-set is mounted as whole on a heavy-duty fabricated, steel base frame
 Anti-vibration pads are fixed between the engine/ alternator feet and the base frame
 Base frame design incorporates an integral fuel tank (Up to 750 kVA)
 The generating set can be lifted or carefully pushed / pulled by the base frame
 Dial type fuel gauge and drain plug on the fuel tank
 Forklift pockets within base frame (up to 500kVA)

DIMENSIONS

OPEN TYPE
DIMENSIONS (LxWxH) mm 1860*900*1381
DRY WEIGHT kg 805

SOUND ATTENUATED TYPE

DIMENSIONS (LxWxH) mm 2494*963*1542
DRY WEIGHT kg 1125

CANOPY

 All canopy parts are designed with modular principles  Exhaust silencer is protected against environment influences
 Without welding assembly  Thermally insulated engine exhaust system
 Doors on each side  Emergency stop push button is installed outside of the canopy
 All metal canopy parts are painted by electrostatic  Easy lifting and moving
polyester powder paint  Easy maintenance and operation

Aksa Power Generation

Evren Mah.Gulbahar Caddesi 1.Sokak Gunesli-Istanbul-TURKEY
Tel:+90 212 478 66 66 Fax:+90 212 657 55 16 E-mail: aksa@aksa.com.tr
www.aksa.com.tr
Aksa Power Generation is a member of www.aksa.com.tr