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Reduced Cooling Down

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Valid for following frames: SGT5-4000F (V94.3A), SGT6-4000F (V84.3A), SGT5-2000E, SGT6-2000E
12 h reduction

Outage time reduction: Rotor cooling down time is reduced from 24 to 12 hours


Earlier start of planned maintenance activities

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General Product Information

Shorten your shut-down

Availability is one of the key factors for profitability of a power plant. Siemens offers a broad range of products that increase the availability; one of them is the Reduced Cooling Down upgrade. This upgrade is based on a new cooling down procedure, which, amongst others, includes specific alternating speed ranges. These speed ranges increase the cooling air mass flow which results in a reduced rotor cooling time. Thus, the possibility of an earlier start of planned maintenance events or short-dated inspections is provided. Furthermore, RCD leads to a time reduction for gas turbine balancing work at the end of outages.

Thanks to the outage time reduction, the gas turbine availability is extended and a high monetary benefit can be obtained.

Your benefits

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Benefits may include:

  • Rotor cooling down time is reduced from 24 to 12 hours
  • Outage time reduction 
  • Short-dated inspections possible
  • Earlier start of planned maintenance activities

Scope of Supply

The scope of this upgrade includes:

  • Modification of instrumentation & control software 
  • Modification of start frequency converter software
  • Preparation during operation possible, finalization and logic function test during the next planned shutdown

Customer Extranet Portal

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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.

Siemens Power Generation Services Customer Extranet Portal
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