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Power Limit Increase

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Valid for following frames: SGT5-4000F (V94.3A), SGT6-4000F (V84.3A), SGT5-2000E (V94.2)
1 MW

Additional gas turbine power output by up to 23.5 MW at low ambient temperatures


Enhanced operational flexibility at low ambient temperatures especially in combination with power augmentation solutions (e.g. Wet Compression)

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General Product Information

Increased power limits for more power output

Due to the Si3D upgrade and the common use of Power AuGmentation (PAG), inlet cooling or WetC the current gas turbine power limits are often already reached at ISO and/or even at warm ambient conditions. Once the power limit is reached, the power limit controller closes the IGVs to limit the gas turbine load to its maximum value, thus reducing available GT power output and efficiency.

The Power Limit Increase (PLI) upgrade is increasing the engine’s rating, which allows operating the engine at a higher maximum GT power output (up to 16 %).

Your benefits

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  • Improved gas turbine power output by up to 23.5 MW at low ambient temperatures
  • Enhanced operational flexibility at low ambient temperatures especially in combination with power augmentation solutions (e.g. Wet Compression)

Scope of Supply

  • I&C Modification
  • New load measurement device for units built before year 2000

 

Prerequisite for the implementation of the PLI upgrade are Si3D blades and vanes stages 1-4, HR3 burners. Furthermore a project specific Balance of Plant (BoP) evaluation is necessary.

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For owners/operators we offer further information on your equipment. Please register to the Siemens Power Generation Services Customer Extranet Portal.

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