Answer / k r kumar ranjan

In modern Steam turbine(say 600 MW) we use lube oil which having a ISO VG 32 grade,That means oil's kinematic viscosity is 32 centistoke,which have the ability to form hydrodynamic layer or wedge or film which acts as lubricating layer between shaft and journal bearing Babbitt material.As we know viscosity X Film velocity/Unit load= C(Bearing Characteristics number) which indicates whether there will be hydrodynamic lubrication or not.So for this reason generally grade-32 or 46 grade oils used not 320.

What do mean by 3t

1 Answers   Aman, Birla, Grasim,

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What is MFT and when it is acted.

2 Answers   HPCL,

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What is the over speed in turbine? What is critical speed?

3 Answers  

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DCS marshaling Cabinet Power supply can be replace during plant running time? Answer Yes it is possible. I am talking about the controller and cards power supply modules. They are always redundant and connected through diode so that if one power supply fails the other can take the charge immediately.so it is possible to replace one of them in running plant if the other one is healthy. MY question is how switching done.

0 Answers  

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what is under voltage protection 27

1 Answers   CLP, NCC,

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Why cold water is used for Boiler Hydro test

1 Answers  

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what is the relation between the grid voltage and generator voltage how to link up generator with grid

3 Answers   NDFL,

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We have 132KV/11KV Grid connected power transformer for getting power from Grid. Can we use this transformer for sending generated power as well. I mean step up from 11KV to 132KV and transmit.

6 Answers  

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which safety valve will open first if steam is not been supplied to turbine.

3 Answers   Wartsila,

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what is the defenation of efficiency in the high pressor boiler? what is the formila of efficiency in the high pressor boiler?

3 Answers  

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what are all the pre commissioning activities in WTP in power plant

1 Answers  

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procedure of how to generate power in solar plant.

0 Answers  

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