presentation 211010.ppt

7/27/2019 Presentation 211010.ppt

1/13

Strategy adopted for indigenous manufactureExpected date of award 01.01.2011

Establish Commissioning date Done

Contractual Deliveries Worked out

Float Considered

Transportation time Considered

Experience of Similar organizations Considered

Work out Ex Factory Delivery Worked out


2/13

Strategy adopted for indigenous manufacture

Time schedule for factory built up 10/2012

Factory operational 12/2012

Time & sequence of operations Indicated

Machine schedule Prepared

Assembly schedule Prepared

Critical activities Identified

Mitigation plan Prepared


3/13

Time required for

synchronization after receipt ofGen 10 Months

LPT 18 Months

IPT 14 Months

HPT 12 Months

Zero Date Assumed 1.1.2011

Synchronization time 44 Months

Synchronization time indicated by Experts, from

the receipt of major Assemblies


4/13


5/13

Set No. 1st 2nd 3rd 4th 5th

Project NBN1 SP1 NBN2 SP2 NBN3

Commissioning date Dec-14 Feb-15 Jun-15 Aug-15 Dec-15

Box up Nov-13 Jan-14 May-14 Jul-14 Nov-14

Supply at site Jul-13 Sep-13 Jan-14 Mar-14 Jul-14

Considering float of 3mths. Apr-13 Jun-13 Oct-13 Dec-13 Apr-14

Turbine -Transportation 2 mths

Turbine -Ex Factory Feb-13 Apr-13 Aug-13 Oct-13 Feb-14

HP (Dates indicated by Kamlesh) SEP 13 Nov 13 Mar 14

IP (Dates indicated by Kamlesh) SEP 13 Nov 13 Mar 14

LP (Dates indicated by Kamlesh) AUG 13 Oct 13 Feb 14

Valves

Pedestal

Generator -Transportation 4 mths

Generator -Ex Factory 12-Dec Feb-13 Jun-13 Aug-13 Dec-13

Stator (Dates indicated by Kamlesh) SEP 13

Rotor

Ex Factory deliveries (Date wise) to meet Contractual

requirements (Assuming NTP as 01.01.2011)


6/13

Set No. 1st 2nd 3rd 4th 5th

Months

from

NTPProject NBN1 SP1 NBN2 SP2 NBN3

commissioning/

Synchronization

Aug-14 Oct-14 Feb-15 May-15 Aug-15 44

Box up

Supply at site

Considering float of 3months,

Turbine -Transportation 2mths.

HP Aug-13 Oct-13 Feb-14 Apr-14 Aug-14

IP Jun-13 Aug-13 Dec-13 Feb-14 Jun-14

LP Feb-13 Apr-13 Aug-13 Oct-13 Dec-13

Ex works HP Jun-13 Aug-13 Dec-14 Feb-14 Jun-14 30

Ex works IP Apr-13 Jun-13 Oct-13 Dec-13 Apr-14 28

Ex works LP Dec-10 Feb-13 Jun-13 Aug-13 Oct-13 24Generator -Transportation 4

mths.

Stator Oct-13 Dec-13 Apr-14 Jun-14 Oct-14

Rotor Oct-13 Dec-13 Apr-14 Jun-14 Oct-14

Ex Works Jun-13 Aug-13 Dec-13 Feb-14 Jun-14 30

Delivery Schedule suggested by Experts


7/13

OUTER CASING

Get fully machined & hydraulically tested casings. Approved venders

are available This has also been considered while planning facilities.

INNER CASING

Machine Inner casing in JV or Partially machined casing except final

machining of blade plan Blades may be procured from machine supplier if required. Blading & post blading machining in JV

ROTOR

Procure forgings/welded Rotor from Birr

Blades to be manufactured in JV/ procured from machine supplier, if

required Blading & post blading machining in JV. Balancing Pit to be expedited /Balancing in Baroda Tunnel/ OR

Import from BIRR

ACTION PLAN FOR HP TURBINE


8/13

OUTER CASING

Get fully machined & hydraulically tested casings. Approved vendors

are available

This has also been considered while planning facilities.INNER CASING

MACHINE CASTINGS IN JV or procure Partially machined casing

(except final machining of blade plan) Blades to be manufactured in JV or may be procured from machine

supplier in case capacity is not sufficient Blading & post blading machining in JV

ROTOR

Procure forgings/welded Rotor from Birr

Blades may be manufactured /procured from machine supplier, if

required Blading & post blading machining in JV Balance in Balancing Pit to be expedited/ or utilize the facility at

Baroda/ OR IMOPRT FROM BIRR

ACTION PLAN FOR IP TURBINE


9/13

OUTER CASING

Fabrication in JVB. In case required, suitable & qualified fabricatorsavailable in India. These can be suitably validated and trained.

INNER CASINGCASTING from approved sourcesMachining in JVLast stage blades from Alstom. Other blades can be manufactured in

JVBlading & post blading machining in JV

ROTOR

Welded Rotor from BirrFully machined in JVBalancing Pit to be expedited to meet the time lines for 3rd set

ORFully machined & bladed & balanced rotor from Alstom

ACTION PLAN FOR LP TURBINE


10/13

STATOR

Wound Stator to be manufactured in India for 3rd set

Other components such as end shields, terminal box etc. to be

manufactured in JV or can be sourced from India

Assembly & Testing in India

Testing facilities to be expedited to meet the time lines for 3rd set

ROTOR

Forgings to be imported

Facilities available for Turning & slot milling

Rotor Coils from Birr Balancing pit to be expedited to meet the time lines for 3rd set

OR

In the mean time Import Complete Rotor duly balanced from

Alstom Birr

ACTION PLAN FOR GENERATOR


11/13

Civil works to be expedited

Ordering of machine tools to be expedited

Expedite factory build up

Immediate decision for Balancing Tunnel

LP Rotor & Generator Rotor from Alstom tillfacility for balancing is not visible.

Finalization of design for Generator test stand

CRITICAL ACTIVITIES


12/13

3rd , 4th and 5th set can be manufactured with

following constraints:

For HP Turbine and IP Turbine, balancing of Rotors is constraint

in view of uncertainty of Balancing Tunnel. This can either be

balanced in Baroda Pit or fully bladed and balanced Rotor may be

imported from Alstom network.

LP Rotor not possible to be manufactured in JV due to invisibility

of Balancing Pit. It may be have to be sourced from Alstom

Generator Rotor not possible to be manufactured in JV due toinvisibility of Balancing Pit. It may be have to be sourced from

Alstom

Finalization of design for Generator test stand. This is critical

CONCLUSION


13/13

Mr. Swamy proposed to import 3rd and 4th

Turbine from Alstom network :

To keep provision of slots for expected orders from IPPs

Alstom today is considering to provide slots for JV which may not

be provided later

Bharat Forge expressed that as order from IPP is not certain, lets

not worry about the slots today and allocate the capacity to NTPC.

Shall see how to manage when order from IPPs becomes visible.

Mr Swamy had his own views and conveyed that management

shall take suitable decision.

CONCLUSION

presentation 211010.ppt

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