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  1. Kash2013

    motor rotor material

    I have a question. Can we accept Motor rotor material as aluminum instead of copper? If we cannot, what is the technical reason? Thanks.
  2. Kash2013

    Spiral wound gasket vs steel trap (STM) gaskets

    Thanks. Not sure about the standard but they mentioned primary reason to select steel trap(STM) gasket is due to Significantly lower minimum gasket seating stress.
  3. Kash2013

    Spiral wound gasket vs steel trap (STM) gaskets

    Hello, For HRSG drum manhole, our spec. calls for spiral wound gasket vs our supplier came back with deviation to use steel trap (STM) gaskets. I have not heard but is that allowable? Thanks in advance.
  4. Kash2013

    Question regarding steam turbine Generator Current transformers (multi core vs dedicated)

    wcaseyharman (Electrical) Further to your reply in above thread. for 300 MW Steam turbine Generator; We plan for 3 CTs for each phase on line side (total 9 CTs) 3 CTS for each phase on neutral side (total 9 CTs) Now customer is asking to keep 3 CTs for each phase on line side (total 9 CTs) 4...
  5. Kash2013

    Steam turbine LP section rupture disc

    I have general question. On Steam turbine LP section, I have typically seen rupture discs for the protection from the over pressurization. In a new project, ACC, Air Cooled Condenser supplier is providing Rupture discs covering the Steam turbine LP portion volume as well. In this case, can we...
  6. Kash2013

    Question regarding steam turbine Generator Current transformers (multi core vs dedicated)

    wcaseyharman (Electrical) Thank you for your helpful feedback and sharing knowledge.
  7. Kash2013

    Question regarding steam turbine Generator Current transformers (multi core vs dedicated)

    wcaseyharman (Electrical) Thanks. We are in the early design phase with the Generator supplier so protection and metering design is not done. I am not Generator/Elect. expert. So can anyone advise me best way to proceed, i.e. how many Total CTs on line side(per phase) and how many Total CTs on...
  8. Kash2013

    Question regarding steam turbine Generator Current transformers (multi core vs dedicated)

    cranky108 (Electrical Thanks. wcaseyharman (Electrical) Thanks. stevenal (Electrical) Thanks. 3 CTs per each phase so total 9 for line side. Same way 3CTs per each phase on Neutral side so total 9 for Neutral side. edison123 (Electrical). Thanks. You replied as "Normal set up is one line CT...
  9. Kash2013

    Question regarding steam turbine Generator Current transformers (multi core vs dedicated)

    For a large Steam turbine Generator (300 MW class), any preference for dedicated current transformers for each phase vs multi core current transformers? i.e. One multi core CT on line and One multi core on Neutral side vs 9 on line side and 9 on Neutral side. Any suggestion? Thanks in advance !
  10. Kash2013

    Steam turbine Generator - Current transformers - Individual vs multi core

    For a large Steam turbine Generator (300 MW class), any preference for dedicated current transformers for each phase vs multi core current transformers? i.e. One multi core CT on line and One multi core on Neutral side vs 9 on line side and 9 on Neutral side. Any suggestion? Thanks in advance !
  11. Kash2013

    Steam turbine performance test code (ASME PTC 6 vs DIN1943)

    I have a question about Steam turbine performance test code (ASME PTC 6 vs DIN1943). I am not familiar with DIN. We do not have contractual requirement to follow one over the other. 1.If OEM prefers DIN, would it be possible to accept? what are the fundamental difference and risk vs benefit...
  12. Kash2013

    TEWAC (Totally Enclosed Water Air Cooler) Generator and potential leak of water to air

    Gr8blu (Electrical) Thanks a lot again
  13. Kash2013

    TEWAC (Totally Enclosed Water Air Cooler) Generator and potential leak of water to air

    Gr8blu (Electrical Thanks a lot.
  14. Kash2013

    TEWAC (Totally Enclosed Water Air Cooler) Generator and potential leak of water to air

    Hello Any tips to prevent potential water leak to Air circuit in TEWAC (Totally Enclosed Water Air Cooler) Turbine Generator? Having only one leak detector in the heat exchanger is reliable? Thanks in advance !
  15. Kash2013

    Vacuum breaker valve

    I have a quick question regarding scope of Vacuum breaker valve. who should be technically providing it? Steam turbine supplier or Condenser supplier? and what is the reason for that? Thanks in advance
  16. Kash2013

    Dry cooled heat exchanger to cool water at higher ambinet

    Hello, In our project location (Middle east)considering higher ambient in summer (52 C) and in fact very limited water availability, I am considering Dry cooling heat exchanger. I have to meet closed cooling demin. water temperature Max at 45 C at Max ambient 52 C. 1. Can I achieve this with...
  17. Kash2013

    A frame vs W frame Air cooled condenser

    LittleInch Thanks. I have not sourced any information so far. I am looking for general information regarding which type (A frame vs W frame) better ? e.g. better performance, easy installation, etc.
  18. Kash2013

    A frame vs W frame Air cooled condenser

    I would like to know A frame vs W frame Air cooled condenser (ACC) brief comparison for selection purpose considering performance and cost effectiveness. Thanks in advance.
  19. Kash2013

    ASME Section VIII Div 1 Pressure vessel

    jsteng123 Thanks. Yes some countries does not require code stamp. So in your case, did authority in Columbia accept vessels based on previous version?
  20. Kash2013

    ASME Section VIII Div 1 Pressure vessel

    GD2 Thanks, we are not manufacturer. P/V was not U stamped because it was not mandatory in that project which got cancelled.

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