Atlas Copco QAS 275-325, Instruction Manual

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Status of neutral earthed earthed
Alternator
Standard IEC34-1 IEC34-1
ISO 8528-3 ISO 8528-3
Make LEROY SOMER LEROY SOMER
Model LSA 46.2 VL 13 LSA 46.2 VL 13
Rated output, class H temperature rise 325 kVA 381 kVA
rating type acc. ISO 8528-3 “BR” 125/40°C “BR” 125/40°C
Degree of protection IP 21 IP 21
Insulation stator class H H
Insulation rotor class H H
Number of wires 12 12
Engine
Standard ISO 3046 ISO 3046
ISO 8528-2 ISO 8528-2
Type Volvo TAD941 GE TAD941 GE
Rated net output 280 kW 296 kW
rating type acc. ISO 3046-7 ICXN ICXN
Coolant water water
Combustion system direct injection direct injection
Aspiration turbocharged turbocharged
intercooled intercooled
Number of cylinders 6 6
Swept volume 9.36 l 9.36 l
Speed governing electronic electronic
EMS 2 EMS 2
Capacity of oil sump 30 l 30 l
Capacity of cooling system 41 l 41 l
Electrical system 24 Vdc 24 Vdc
Emission compliance EU STAGE II EU STAGE II
Power circuit
Circuit-breaker, 3ph.
Number of poles 4 4
Thermal release It (thermal release is higher at 25°C) 470 A 470 A
Magnetic release Im 3.5 x In 3.5 x In