Rated capacity:
3915 KW
Rated capacity in kVA:
5425 kVA
Output voltage:
6000 V
Wartsila 3.9 MW/50Hz Gas Generating Set 12V34SG with CHP Auxiliaries
This power plant was built by Wartsila in end of year 2010 and it was
commissioned in 2011 as a turn-key project with heat recovery system
for 10 bar steam production. Fuel used in this plant was normal
natural gas fed from a local pipeline. The plant was operated till
2021 having total operating hours 43’767 till shutting down.
Complete plant with step up transformer, lube oil system, control
panels, and synchronizer panel, USP systems, operating monitors, MCC,
start system and air compressors, HRCS for 10 bar steam, exhaust
system, 6 kV Vacuum breaker with synchronisation, manuals and
drawings. Plant is still installed, and electric power is still
connected to all devices. Wartsila Service has made all scheduled
services for this engine, last 40’000-hour service just 3000-hour
prior operation closing in 2021. Note, that this unit has modern
Wartsila UNIC engine control system, all PLCs Siemens S7-series .
Main technical characteristics
Manufactured by Wartsila Finland
Engine type Wartsila 12V34SG Lean Burn Gas Engine
Alternator ABB Synchronous Generator 5425 kVA
Year of manufacturing 2010
Electric power from alternator 3915 kWe / 6000V / 50Hz
Fuel Natural gas
Operating hours since new 43767
Last scheduled service 40000-hour service by
Wartsila
Steam production (100% load) Approx 2000 kW/10 bar saturated
Original heat rate (at alt.) 8188 kJ/kWhe (44.0 %)
Engine control system UNIC + Siemens S7-series PLCs
Power transformer SNT 6/15.7 kV, 6000 kVA (1994)
Finland
00540 Helsinki 
