Eemg Part 1 (Mou Abt Perf Avf Pl Outage)

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    LIGHTS FOR THE MONTH OF

    S

    ONS (PREVIOUS MONTH):

    RAMETERS

    ACHIEVED PARAMETERS

    GHTS

    d 100% availability factor during the month.

    d zero Sp. Oil Consumption during the month, surpassing previous minimum

    f 0.01 ml/kWh during May'09.

    maximum continuous running for 237.35 days (5696.50 hrs.) from 23.12.2008

    passing previous continuous running for 232.65 days (5583.48 hrs.) from 28/11

    inuous Running :

    IGHLIGHTS DURING THE MONTH :

    own :

    ken under planned shut down at 00:45 hrs. on 18/08/2009, for Boiler Licence

    t synchronised at 15:38 hrs. on 21/08/2009 (Outage hrs.=86.88, 3.62 days).

    taken under planned shut down at 23:47 hrs. on 31/08/2009, for Capital

    (Outage hrs.=0.22).

    tor :

    il Consumption :

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    ATION

    as per performance evaluat ion m atr ix to be provided.

    APR MAY JUN JUL AUG SEP OCT NOV DEC

    PARAMETERS

    Unit

    Actual

    (CurrentMonth)

    Value Month Value

    MU 815.4160 Dec.'07 778.9640

    % 104.40 Feb.'09 99.71

    r) % 100.00 Feb.'08 95.87

    % -4.53 Dec.'07 -4.01

    Kcal/Kwh 2376.00

    Dec.'08 &

    Feb.'09 2387

    ved during the month was 4,49,487.30 MT (122 Rakes).

    Best achieved(Till Date)

    al) for Stage-I , Stage-II, Stage-III & Station (Comml.) were 97.98%, 99.81%,

    7% respectively during the month.

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    ml/Kwh 0.02 Feb.'08 0.22

    Kg/Kwh 0.61 Feb'09 0.644

    % of MCR 0.47 Feb.'09 0.78

    EST ACHIEVED PARAMETERS (Update as and when the base value is improved

    Value Month Value Month Value Month Value Month

    MU 634.1910 Jan.'05 634.5440 Dec.'05 635.4480 Dec.'06 761.6880 Jan.'07

    %101.97 Mar.'99 102.34 Feb.'06 102.76 Nov.07 104.38 Dec'07

    r) %100.00 Mar.'05 100.00 Feb.'06 100.00 Feb.'09 100.00 July'09

    %0.00 Feb.'05 -2.34 Feb.'06 -4.01 Aug'09

    Kcal/Kwh2440 Mar.'05 2433 Oct'05 2423 Nov'05 2413 Dec'05

    ml/Kwh

    0.08 Feb.'04 0.04 Mar.'06 0.02 Feb.'08

    Kg/Kwh0.673 Oct.'02 0.665 Mar.'06 0.662 Jul-07 0.662 Feb-08

    % of MCR 0.55 Dec.'04 0.47 Feb'09

    Best achieved(Base Value)

    Best achieved(Next) Bestachieved(Next)

    Bestachieved(Next)

    Unit

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    Fin. Year

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    Month Value Month Value Month Value Month Value Month Value Month Value

    Aug.'07 794.3600 Oct.'07 815.4160 Dec.'07

    Feb'06 2405 Jan'07 2402 Feb'07 2398 Mar'07 2394 Oct.'07 2392 Nov.07 2388

    Feb'09

    Bestachieved(Next)

    Bachiev

    Bestachieved(Next)

    Bestachieved(Next)

    t(Next)

    Bestachieved(Next)

    Bestachieved(Next)

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    ue Month Value Month Value Month

    383 FEB.'08 2376 DEC.'08 2376 Feb.'09

    Bestachieved(Next)

    Bestachieved(Next)

    Besthieved(Next)

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    ORMANCE W.R.T. MOU TARGET (YEAR):

    TARGET WITH ACTION PLAN:

    ETERS

    OU TARGET WITH ACTION PLAN :

    MOU

    TARGET (R0)

    MOU

    TARGET ACTUAL

    FINANCIAL YEAR) R1 R2 R3 R4 Pro rata TILL

    Aug-09

    8414 -- -- -- -- 3586.6706 3818.1610

    5.37 -- -- -- -- 3.79 3.34

    1.50 -- -- -- -- 1.53 1.17

    0.50 -- -- -- -- 0.51 0.01

    2392 -- -- -- -- 2399 2391

    0.25 -- -- -- -- 0.28 0.16

    8.34 -- -- -- -- 8.39 8.05

    70.00 -- -- -- -- 75.00 75.24

    RAMETERS WITH RETRIEVAL PROGRAM

    Apr-09 May-09 Jun-09 Jul-09 Aug-09 Sep-09 Oct-09 Nov-09 Dec-09 Jan-10 Feb-10 Mar-10

    Target 732.1104 721.2341 666.4392 756.2016 710.6854 586.0512 629.1079 660.7944 756.5141 756.0454 682.8797 756.0454

    Actual 773.6130 756.4340 698.9800 810.1700 778.9640 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

    Deviation (+/-) 41.5026 35.19992 32.5408 53.9684 68.27864 -586.0512 -629.10792 -660.7944 -756.51408 -756.04536 -682.87968 -756.04536

    Program for Balance

    Period

    Target 0.00 4.52 8.67 0.00 5.81 20.00 16.13 9.33 0.00 0.00 0.00 0.00

    MOU TARGET (Fin. Yr.)

    (Revision) VARIATION

    REASON FOR

    VARIATION

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    Apr-09 May-09 Jun-09 Jul-09 Aug-09 Sep-09 Oct-09 Nov-09 Dec-09 Jan-10 Feb-10 Mar-10

    Actual 0.00 4.51 9.96 0.00 2.34 #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0!

    Deviation (+/-) 0 -0.004032 1.2894444 0 -3.465053763 #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0!

    Program for Balance

    Period #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF!

    Target 1.52 1.52 1.54 1.54 1.54 1.20 1.54 1.52 1.52 1.52 1.52 1.52

    Actual 1.86 1.33 0.88 0.00 1.79 #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0!

    Deviation (+/-) 0.33888889 -0.185323 -0.662778 -1.54 0.249784946 #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0!

    Program for Balance

    Period

    Target 0.50 0.50 0.50 0.52 0.54 0.40 0.52 0.50 0.50 0.50 0.50 0.50

    Actual 0.00 0.00 0.00 0.02 0.04 #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0!

    Deviation (+/-) -0.5 -0.5 -0.5 -0.504293 -0.498230927 #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0!

    Program for Balance

    Period #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF!

    Target 8.30 8.32 8.37 8.48 8.48 8.48 8.41 8.30 8.26 8.24 8.24 8.26

    Actual 7.58 8.01 8.15 8.22 8.28 #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0!

    Deviation (+/-) -0.72577556 -0.311262 -0.217218 -0.257798 -0.203826707 #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0!

    Program for Balance

    Period #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF!

    Target 0.17 0.17 0.44 0.22 0.41 0.24 0.43 0.44 0.16 0.12 0.12 0.12

    Actual 0.13 0.06 0.39 0.03 0.22 #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0!

    Deviation (+/-) -0.0374635 -0.112523 -0.042038 -0.184864 -0.192843287 #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0!

    Program for Balance

    Period #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF!

    Target 2388 2395 2396 2409 2406 2400 2402 2394 2383 2379 2379 2380

    Actual 2387 2391 2396 2392 2387 0 0 0 0 0 0 0

    Shortfall/

    Excess -0.92028088 -3.618105 0.0769871 -16.81364 -18.74675171 -2400.00645 -2401.5284 -2394.074441 -2382.948162 -2378.924365 -2378.924365 -2379.933871

    Program for Balance

    Period #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF!

    Target 0 0 0 0 0 0 0 0 0 0 0 0

    Actual 70 70 74 75 75 0 0 0 0 0 0 0

    Deviation (+/-) 70 70 74.28 75.23 75.24 0 0 0 0 0 0 0

    Program for BalancePeriod 0 0 0 0 0 0 0 0 0 0 0 0

    ess (+) in the above parameters should be highlighted in red & green colour respectively.

    N OF ROPR TARGETS :

    ROPR

    TARGET (R0)

    (FIN. YEAR) R1 R2 R3 R4

    ROPR TARGET (Fin. Yr.)

    EXPEXTD FY(Revision)

    ACTUALTILL

    DATE

    EXPEXTD FOR

    BALANCE

    PERIOD

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    Apr-09 May-09 Jun-09 Jul-09 Aug-09 Sep-09 Oct-09 Nov-09 Dec-09 Jan-10 Feb-10 Mar-10

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    N

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    TREND

    ION PERFORMANCE (TREND)

    TION PERFORMANCE (TREND)

    2001-02 2002-03 2003-04 2004-05 2005-06 2006-07 2007-08 2008-09

    urren

    Year(Cumul

    ative)

    6560.9920 6148.8330 6450.9290 6781.0900 7041.2050 7467.2270 9010.0690 8620.9160 3818.1610

    89.16 83.56 87.43 92.15 95.69 95.59 97.69 93.73 99.03

    92.10 87.60 89.94 92.25 94.70 94.69 95.05 91.46 95.49

    92.10 87.60 89.94 92.25 94.70 94.69 95.16 91.46 95.49

    3.19 4.61 2.79 0.11 -1.05 -0.95 0.48 0.70 0.25

    0.69 1.40 0.87 0.38 0.20 0.19 0.10 0.24 0.01

    0.60 0.64 0.50 0.43 0.36 0.27 0.24 0.27 0.16

    8.51 8.76 8.93 8.58 8.37 8.18 8.05 8.07 8.05

    0.68 0.68 0.69 0.68 0.67 0.67 0.66 0.64 0.617

    1.23 1.06 0.99 0.88 1.00 1.03 0.87 0.77 0.61

    ION PERFORMANCE DATA (MONTH WISE / CUMULATIVE):

    E IN BI ANALYTICS IN ESS : COAL STATION PERFORMANCE

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    :

    IN BI ANALYTICS IN ESS : COAL STATION PERFORMANCE

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    R STATIONS UNDER ABT)

    DEVIATION IN ABT GAP ANALYSIS:

    F DC GAP

    AP

    o bta ined from the tab le given under sect ion 4.4

    S (FOR STATIONS UNDER ABT):

    r)

    A

    SG %

    of DC bar

    AG %

    of DC bar DC (installed)-DC (bar) break up (%)

    2198212-3.822353736-4.472992863-2.549716565

    100 100 100 100 100

    MAY JUNE JULY AUG SEPT OCT NOV DEC JAN

    Trending of DC GAPDifference of DC (Installed) - Planned & Forced Outage (Ex bus) and DC on bar (%)]

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    Planned Forced Equpt.

    Fuel

    quality

    Fuel

    supply Others* Grid

    21521 99.31997998 100.02411 0 1.546499 0 0 0 -5.34865 0.68002

    46066 98.3757022 99.02376 4.088106016 1.326632 0 0 0 -4.1622 1.62305

    26979 99.64371998 100.06963 10.62333313 0.035751 0 0 0 -3.82235 0.35628

    29929 99.44649609 100.01367 0 0 0 0 0 -4.47299 0.5535

    30571 99.92425951 100.53122 2.346438847 0.328972 0 0 0 -2.54972 0.07574

    .03 99.34 99.93 3.39 0.65 0.00 0.00 0.00 -4.06 0.89

    ge wise ,please add additional formats/graphs

    Y DEVIATION IN ABT GAP ANALYSIS:

    ResponsibilityReasons Action Plan

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    NG OF DC GAP

    Planned & Forced

    Outage (Ex-bus)

    %of A (B)

    Installed-

    %-Planned

    & Forced

    DC (bar)

    %of A

    (D)

    erenc

    e

    (C)- (D)-

    %

    1.546498894 98.453501 103.8021521 -5.34865

    5.41473755 94.585262 98.74746066 -4.1622

    10.65908395 89.340916 93.16326979 -3.82235

    0 100 104.4729929 -4.47299

    2.675410852 97.324589 99.87430571 -2.54972

    0 100 0 100

    0 100 0 100

    0 100 0 100

    0 100 0 100

    0 100 0 100

    LOW SHEDULE&HIGH FREQUENCY

    NA

    0%

    from SIIS from time to time

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    0 100 0 100

    0 100 0 100

    100.03 -4.064.03

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    Equivalen

    t

    Availabilit

    y (%)

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    Fuel

    upply Others*

    0 0.016746 103.8022

    0 -0.52507 98.74746

    0 0.12936 93.16327

    0 0.214243 104.473

    0 0.340282 99.87431

    0.00 -0.34 100.03

    status

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    MONTH Difference (C)- (D)-%

    APRIL -5.34865

    MAY -4.1622

    JUNE -3.82235

    JULY -4.47299

    AUG -2.54972

    SEPT 100

    OCT 100

    NOV 100

    DEC 100

    JAN 100

    FEB 100

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    MAR 100

    CUM. -4.06446

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    AG/DC PLOT AGAINST FREQUENCY)-MONTH WISE

    RIX (FOR STATIONS UNDER ABT):

    AG/DC PLOT AGAINST FREQUENCY)-MONTH WISEere month wise

    Scatter Diagram for the Month of April Scatter

    inst Average Frequency:

    90%DC)

    70

    80

    90

    100

    110

    50 50.5 51 51.5quency (Hz)

    BEF, 50.3Hz

    AG/SG(%)

    urple trace

    90% of DC for illustration purposes

    o left of 50Hz axis

    ht of 50Hz axis

    be 80% of DC

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    1111 0.659722222 0 1.180555556 1.111111111 0.451388889 0 0

    es good performance

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    onth of May Scatter Diagram for the Month of June Scatter Diagram for the Month of J

    Freq. VS AG % of DC (Unchaha

    70.00

    75.00

    80.00

    85.00

    90.00

    95.00

    100.00

    105.00

    110.00

    4 8.50 48 .75 49.00 4 9.25 49.5 0 49.75

    Freq.(H

    AG%o

    fDC(%)

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    Scatter Diagram for the Month of Nov Scatter Diagram for the Month of D

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    EVING 105% DC

    NERAL):

    n the unit generated at 105% DC

    Y

    to be f i l led in the table given un der sect ion 4.10

    ACHIEVING 105% RATED CAPACITY

    May June July Aug Sept Oct Nov Dec Jan Feb

    No. of Time blocks unit operated at 105% DC

    it-12 Unit-11 Unit-10 Unit-9 Unit-8 U

    it-6 Unit-5 Unit-4 Unit-3 Unit-2 U

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    Action Plan

    Boiler & Aux. Mills

    Nil

    Action Plan

    Nil Nil

    Turbine & Aux.

    Resp

    Constraints Responsibility

    Nil

    Elec

    Constraints

    me plate rat ing of the un i t .

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    Action PlConstraints

    Nil

    me plate rat ing of the un i t .

    C&I BoP Others

    Nil Nil

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    OCUREMENT AS PER ACTION PLAN

    onent Indent

    No. &

    Date

    Estimated

    Cost

    Status of any

    CC/RHQ approval

    ,if required

    Bid

    Evalua

    tion

    Expected Actual Expected Actual

    NERAL):

    ur April May June July Aug Sept Oct Nov

    eak

    age DC

    a day 99.70 100.26 99.58 100.026 100.49

    Enquiry /NIT Date Bid Received date

    me plate rat ing of the un i t .

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    g forced

    uld not

    ame time

    DC (no.)

    tation

    R

    (no.)tation

    e DC on

    when the unit generated at 105% DCfor each unit for establishing 105% DC capability.

    ur April May June July Aug Sept Oct Nov

    2680 1899 2484 2227 1788

    2680 1899 2484 2227 1788

    2421 1959 634 1081 1357

    2421 1959 634 1081 13572421 1959 634 1081 1357

    when

    at 105%

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    Present statusrget Date

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    te Actual Expected Actual

    Fin-Year

    100.01

    Implementation/

    Installation Datelivery Date

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    Fin-Year

    11078

    11078

    7452

    74527452

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    S ANALYSIS:

    OSS (STATION) FOR LAST 9 YEARS (%):

    Y LOSS BREAK UP(STATION)-MONTH WISE:

    MONTH AND ACTION PLAN

    TY LOSS (STATION) FOR LAST 9 YEARS (%):

    01-02 2002-03 2003-04 2004-05 2005-06 2006-07 2007-08 2008-09

    2009-10 Till

    Date

    2008-09

    (Same

    Period)

    .40 7.25 6.07 6.21 4.02 0.00 3.17 5.84 3.34 9.82

    .12 3.57 0.00 0.07 0.00 0.00 0.00 0.00 0.00 0.00

    .76 2.94 1.73 0.62 0.39 0.00 0.00 0.00 0.00 0.00

    .00 0.00 0.00 0.00 0.00 1.45 1.77 2.52 1.17 1.56

    .00 0.00 0.00 0.00 0.00 1.45 1.79 2.52 1.17 1.56

    BILITY LOSS BREAK UP(STATION)-MONTH WISE:

    E MONTH AND ACTION PLAN

    Unit

    Target

    date

    Nil

    UTAGE-% -UNIT WISE-FIN. YEAR- CUMULATIVE

    Y LOSS BREAK UP(STATION)-MONTH WISE:

    OSS BREAK UP:

    LOSS BREAK UP DUE TO EQUIPMENT(UNIT WISE & MONTH WISE):

    NG (%) FOR THE LAST 9 FIN. YEARS (STATION)

    OADING--CUMULATIVE-CURRENT FIN. YEAR (%)

    NG PARTIAL LOADING

    OADING (%) FOR LAST 9 FIN. YEARS (STATION)

    DATA AVAILABLE IN ERP : ORT/ZOPNOUTREP

    Reason for major Av Loss Present statuResponsibilityCorrective Action

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    2001-02 2002-03 2003-04 2004-05 2005-06 2006-07 2007-08 2008-09

    2009-10 Till

    Date

    2008-09

    (Same

    Period)

    3.45 4.33 2.60 1.00 0.55 0.31 0.65 0.69 0.25 1.10

    2.76 2.94 1.73 0.62 0.39 0.27 0.20 0.33 0.15 0.59

    0.69 1.40 0.87 0.38 0.16 0.20 0.11 0.24 0.01 0.39

    0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.02 0.00 0.00

    0.00 0.00 0.00 0.00 0.00 0.36 0.32 0.11 0.05 0.00

    IAL LOADING- MONTHWISE & CUMULATIVE (CURRENT FIN. YEAR (%))

    Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Cum

    % % % % % % % % % % % % %

    0 0 0 0.016 0.021 0.007

    0 0 0 0.105 0.021

    0 0 0 0 0

    0 0 0 0.009 0.002

    0 0 0 0 0

    0 0 0 0 0

    0 0 0 0 0

    0 0 0.002 0.036 0 0.0080.084 0.619 0.052 0.008 0 0.154

    0 0 0 0 0

    0.033 0.057 0.166 0 0.051

    0 0 0 0 0

    0 0 0 0 0

    -4.305 -3.352 -3.512 -3.767 -3.979 -3.781

    0.033 0.057 0.166 0.016 0.135 0 0 0 0 0 0 0 0.081

    0 0 0.002 0.036 0 0 0 0 0 0 0 0 0.008

    0.084 0.619 0.052 0.008 0 0 0 0 0 0 0 0 0.154

    0 0 0 0 0 0 0 0 0 0 0 0 0

    MONTH & ACTION PLAN FOR REDUCING PARTIAL LOADING

    Unit

    Target

    date

    LOADING (STATION) MONTHWISE,%:

    NT PARTIAL LOADING UNITWISE-MONTHWISE (%)-

    L PARTIAL LOADING UNITWISE-MONTHWISE (%)-

    AVAILABLE IN ERP : ORTZOPNLOSS

    AVAILABLE IN ERP : ORTZOPNLOSS

    Corrective Action Responsibility

    AS

    DISTURBANC

    Present statuReason for major Partial Loading

    RICAL SYSTEM

    ARIES

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    al M-MU Total M-% Total Y-MU Total Y-%

    STAGE3 M-

    MU

    STAGE3 M-

    %

    STAGE3 Y-

    MU

    STAGE3 Y-

    %

    UNIT05 M-

    MU

    UNIT05 M-

    %

    UNIT05 Y-

    MU

    UNIT05 Y-

    %

    STAGE2 M-

    MU

    STAGE2 M-

    %

    781.200 0.000 3855.600 0.000 156.240 0.000 771.120 0.000 156.240 0.000 771.120 0.000 312.480 0.000

    778.964 99.714 3818.157 99.029 163.044 104.355 798.998 103.615 163.044 104.355 798.998 103.615 309.860 99.162

    2.236 0.286 37.443 0.971 -6.804 -4.355 -27.878 -3.615 -6.804 -4.355 -27.878 -3.615 2.620 0.838

    32.274 4.131 173.901 4.510 0.000 0.000 0.924 0.120 0.000 0.000 0.924 0.120 13.325 4.264

    -30.038 -3.845 -136.458 -3.539 -6.804 -4.355 -28.802 -3.735 -6.804 -4.355 -28.802 -3.735 -10.705 -3.426

    0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

    0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

    0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

    0.162 0.021 0.285 0.007 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.061 0.019

    0.819 0.105 0.819 0.021 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.257 0.082

    0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

    0.067 0.009 0.067 0.002 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.0000.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

    0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

    0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

    0.000 0.000 0.297 0.008 0.000 0.000 0.033 0.004 0.000 0.000 0.033 0.004 0.000 0.000

    0.000 0.000 5.923 0.154 0.000 0.000 1.548 0.201 0.000 0.000 1.548 0.201 0.000 0.000

    0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

    0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

    0.000 0.000 1.949 0.051 0.000 0.000 0.130 0.017 0.000 0.000 0.130 0.017 0.000 0.0000.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

    0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

    -31.085 -3.979 -145.797 -3.781 -6.804 -4.355 -30.513 -3.957 -6.804 -4.355 -30.513 -3.957 -11.022 -3.527

    VAILABLE IN ERP : ORTZOPNLOSS

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    M- UNIT04 M-

    %

    UNIT04 Y-

    MU

    UNIT04 Y-

    %

    UNIT03 M-

    MU

    UNIT03 M-

    %

    UNIT03 Y-

    MU

    UNIT03 Y-

    %

    STAGE1 M-

    MU

    STAGE1 M-

    %

    STAGE1 Y-

    MU

    STAGE1 Y-

    %

    UNIT02 M-

    MU

    UNIT02 M-

    %

    UNIT02 Y-

    MU

    240 0.000 771.120 0.000 156.240 0.000 771.120 0.000 312.480 0.000 1542.240 0.000 156.240 0.000 771.120

    720 94.547 654.278 84.848 162.140 103.776 792.507 102.773 306.060 97.945 1572.374 101.954 162.505 104.010 790.678

    520 5.453 116.842 15.152 -5.900 -3.776 -21.387 -2.773 6.420 2.055 -30.134 -1.954 -6.265 -4.010 -19.558

    279 8.499 138.089 17.908 0.046 0.029 4.624 0.600 18.949 6.064 30.265 1.962 0.704 0.450 12.019

    759 -3.046 -21.247 -2.755 -5.946 -3.805 -26.011 -3.373 -12.529 -4.010 -60.399 -3.916 -6.969 -4.460 -31.577

    000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

    000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

    000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

    061 0.039 0.167 0.022 0.000 0.000 0.001 0.000 0.101 0.032 0.117 0.008 0.002 0.001 0.002

    138 0.088 0.138 0.018 0.119 0.076 0.119 0.015 0.563 0.180 0.563 0.036 0.141 0.090 0.141

    000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

    000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.067 0.021 0.067 0.004 0.027 0.017 0.027000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

    000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

    000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

    000 0.000 0.009 0.001 0.000 0.000 0.009 0.001 0.000 0.000 0.246 0.016 0.000 0.000 0.104

    000 0.000 0.345 0.045 0.000 0.000 1.695 0.220 0.000 0.000 2.335 0.151 0.000 0.000 1.072

    000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

    000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

    000 0.000 0.826 0.107 0.000 0.000 0.501 0.065 0.000 0.000 0.492 0.032 0.000 0.000 0.492000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

    000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

    958 -3.173 -22.732 -2.948 -6.064 -3.881 -28.335 -3.675 -13.259 -4.243 -64.217 -4.164 -7.137 -4.568 -33.414

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    M- UNIT01 Y-

    MU

    UNIT01 Y-

    %

    000 771.120 0.000

    881 781.696 101.372

    119 -10.576 -1.372

    678 18.246 2.366

    559 -28.822 -3.738

    000 0.000 0.000

    000 0.000 0.000

    000 0.000 0.000

    064 0.115 0.015

    270 0.422 0.055

    000 0.000 0.000

    026 0.040 0.005000 0.000 0.000

    000 0.000 0.000

    000 0.000 0.000

    000 0.142 0.018

    000 1.263 0.164

    000 0.000 0.000

    000 0.000 0.000

    000 0.000 0.000000 0.000 0.000

    000 0.000 0.000

    918 -30.803 -3.995

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    2002-03 2003-04 2004-05 2009-10 Till Date

    427 7.2482306 6.0715505 6.2095605 3.3407952

    196 3.5681507 0 0.0694635 0

    477 2.9365229 1.7282412 0.6236529 0

    0 0 0 0 1.1695534

    0 0 0 0 1.1695534

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    SIS & RESTORATION

    AGES (STATION) FOR LAST 5 YEARS (No.):

    ZERO FORCED OUTAGE".

    CUREMENT AS PER ACTION PLAN

    N PLAN OF LAST FINANCIAL YEAR:

    TRIPPING:

    ES:

    ERS:

    R OF OUTAGES (STATION) FOR LAST 5 YEARS (No.):

    2009-10

    Till Date

    (Same

    Period)

    15 23

    12 19

    CHIEVE 'ZERO FORCED OUTAGE".

    or action points for each section/ category

    IAL PROCUREMENT AS PER ACTION PLAN

    quipment

    closed File

    gese

    s

    Present status

    15

    12

    0

    5

    10

    15

    20

    25

    30

    2009-10 Till Date

    No.

    TREND OF NUMBER OF OUTAGES FOR LAST 5 FIN.YEAR

    Total ForcedOutages

    Click to go

    DATATABLE

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    6/7/2009

    Unit Running

    Normal

    8/21/2009

    Unit Running

    Normal

    8/9/2009

    Unit Running

    Normal

    8/31/2009

    Unit Under Planned

    Shut Down

    8/1/2009

    Unit Running

    Normal

    8/29/2009

    Unit Running

    Normal

    HE ACTION PLAN OF LAST FINANCIAL YEAR:

    Outage

    No./ Date

    Target

    Date

    Present

    Status

    OF UNITS *

    Outage

    no./Date

    Responsibility

    1/14.04.2009

    2/23.04.2009 TMD

    Problems faced

    during restoration

    1.DR16 in operative2.EF 1 atomising v/v LS not making

    3.EF4 HONV LS not making

    d sheet (Trip committee Recommendations)

    1.point no:1&2-TMD to attend in unit overhaul.

    2.point 3 attended .

    1.In ATRS mode, trip oil pressure coming down while

    opening stop valves.

    2. HPSV 2,IPSV 2 not opening from UCB.

    3.MS 101,105 Jamming.

    -atteded

    Corrective actions

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    3/28.04.2009 19:45 23:16 21:30 22:58 23:09 23:36

    4/10.05.2009 11:46 14:55 13:45 15:46 15:55 16:10

    5/06.06.2009 19:33 20:00 19:34 21:04 21:07 21:20

    6/07.06.2009 4:40 5:44 4:41 7:56 8:00 8:10

    7/25.04.2009 21:37 2:50 23:55 15:17 16:38 22:25

    8/19.06.2009 18:03 19;42 19:00 20:25 20:38 21:16

    9/24.06.2009 23:37 00;07 23;38 0:54 00;54 1:0310/26.06.2009 12:13 12:50 12:14 13:12 13:13 13:28

    11/01.08.2009 20:45 23:10 21:50 23:30 23:33 23:59

    12/09.08.2009 14:17 15:15 14:18 15:42 15:49 16:07

    13/18.08.2009 4:50 8:00 6:59 8:36 8:51 15:38

    14/29.08.2009 1:09 2:23 2:00 3:27 3:32 4:10

    ARAMETERS

    Unit DESIGNVALUE

    After Boiler

    Light Up

    Before HP-LP

    Bypass charging

    Before Turbine

    Rolling

    After Unit

    Synchronisation

    60% load

    :Cold warm

    ature Deg C 113.28 113.28 249 250 316

    Ksc 10.5 10.5 10.5 10.5 10.5

    oC 110 110 110 110 110

    Ksc 11 11 11 11 11

    TPH 307 307 399 485 610

    % 19 19 13 7.7 3.3

    KSC 0.66 0.66 44.19 56 96

    temp 0 C 63.72 63.72 171 178 230

    15.04.2009

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    0C 74.22 74.22 198 190 298

    0C 36.38 36.38 70 75 113

    mp 0 C 65.43 65.43 168 175 240

    0C 72.02 72.02 194 198 295

    0C 36.87 36.87 67 72 95

    mp 0 C 58.5 58.5 129 146 235

    mp 0 C 55.5 55.5 154 160 236

    0C - - 450/450 465 515/515

    (blr 0 C - - 434/434 472 514/515

    ppm

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    old HOT

    ure Deg C 330 330 318 330 330

    Ksc 11.7 11.7 10.5 10.5 10.5

    oC 109 109 10.53 10.53 10.53

    Ksc 10.5 10.5 109 10.73 10.73

    TPH 401 401 396 600 600

    % 10.44 10.44 10.4 6 6

    KSC 98 98 109 115 115

    mp 0 C 229 229 227 267 267

    0C 249 249 251 305 305

    0C 105 105 103 129 129

    mp 0 C 226 226 225 301 301

    0 C 249 249 250 308 308

    0C 97 97 95 129 129

    mp 0 C 238 238 233 310 310

    mp 0 C 240 240 233 308 308

    0C 508 508 512 525/528 525/528

    (blr 0 C 488 488 489 530/530 530/530

    ppm

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    r 0 C 119 119 125 220 220

    w 0 C 175 175/388 247/578 434/440 434/440

    0C 388 750 750 780 780

    tph 26 26 26 95 95

    mp. 0 C 508/489 508/489 512/489 523/543 523/543

    RAMETERS

    Unit DESIGNVALUE

    After Boiler

    Light Up

    Before HP-LP

    Bypass charging

    Before Turbine

    Rolling

    After Unit

    Synchronisation

    60% load

    old warm

    ure Deg C 107 107 286 312 312

    Ksc 11 11 11 11 11

    o C 110 110 110 110 110

    Ksc 12 12 12 12 12

    TPH 304 304 368 523 523

    % 19.6 19.6 17 3 3

    KSC 0.9 0.9 55 116 116

    mp 0 C 65 65 166 229 229

    0C 74 74 186 263 263

    29.04.2009

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    0C 44 44 80 98 98

    mp 0 C 69 69 170 234 234

    0C 75 75 190 273 273

    0C 43 43 80 96 96

    mp 0 C 47 47 118 216 216

    mp 0 C 47 47 148 226 226

    0C -/- -/- 435/435 467/467 467/467

    (blr 0 C -/- -/- 415/415 484/484 484/484

    ppm

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    ure Deg C 116 150 235 301 301

    Ksc 12 11 11 11 11

    oC 98 97.4 97.4 97.4 97.4

    Ksc 13.5 12 12 12 12

    TPH 300 350 400 573 573

    % 11.3 11.3 11 5 5

    KSC 0.4 8.8 47 99.7 99.7

    mp 0 C 63 156 207 237 237

    0C 77 193 255 274 274

    0C 33 56 80 98 98

    mp 0 C 68 162 212 236 236

    0C 77 190 257 277 277

    0 C 36 62 86 102 102

    mp 0 C 37 60 198 237 237

    mp 0 C 41 73 202 241 241

    0C - - 384/376 450/450 450/450

    (blr 0 C - - 380/380 430/430 430/430

    ppm

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    w 0 C 0 50/58 100/100 521/472 521/472

    mm of wc 0 0 780 805 805

    tph 0 0 17 85 85

    mp. 0 C 94/85 240/111.5 390/400 459/436 459/436

    RAMETERS

    Unit DESIGNVALUE

    After Boiler

    Light Up

    Before HP-LP

    Bypass charging

    Before Turbine

    Rolling

    After Unit

    Synchronisation

    60% load

    old Hot

    ure Deg C 305 305 298 318 318

    Ksc 10 10 10 10 10

    oC 105 105 105 105 105

    Ksc 11 11 11 11 11

    TPH 442 442 420 542 542

    % 11.5 11.5 11 8/6 8/6

    KSC 28 28 80 100 100

    mp 0 C 210 210 250 280 280

    0C 260 260 288 320 320

    0C 80 80 102 105 105

    06.06.2009

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    Ksc 11.5 11.5 11.5 11.5 11.5

    oC 105 105 105 105 105

    Ksc 12.2 12.2 12.2 12.2 12.2

    TPH 319 319 350 530 530

    %9.9 9.9 9.98 4.5 4.5

    KSC 70 70 98 106 106

    temp 0 C 210 210 212 226 226

    p 0 C 238 238 211 279 279

    mp 0 C 95 95 29 98 98

    temp 0 C 205 205 231 221 221

    0C 234 234 205 278 278

    p 0 C 91 91 29 98 98

    temp 0 C 250 250 228 231 231

    temp 0 C 246 246 225 231 231

    0C 350/350 350/350 390/390 537/537 537/537

    HS (blr 0 C 357/357 357/357 405/405 530/530 530/530

    ppm

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    mm of wc 588 588 700 740 740

    tph 0 0 15 82 82

    mp. 0 C 338/317 338/317 375/399 531/537 531/537

    RAMETERS

    Unit DESIGNVALUE

    After Boiler

    Li ht U

    Before HP-LP

    B ass char in

    Before Turbine

    Rollin

    After Unit

    S nchronisation

    60% load

    old Cold

    ure Deg C 92 92 244 292 292

    Ksc 10 10 10 10 10

    oC 110 110 11 110 110

    Ksc 12 12 12 12 12

    TPH 294 294 279 562 562

    % 17 17 17 6.58 6.58

    KSC 2.49 2.49 32 96 96

    mp 0 C 73 73 159 245 245

    0C 86 86 177 274 274

    0C 54 54 80 109 109

    mp 0 C 73 73 159 243 243

    15.06.2009

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    0C 89 89 174 281 281

    0C 45 45 82 109 109

    mp 0 C 52 52 125 235 235

    mp 0 C 41 41 121 241 241

    0C 132/132 132/132 357/357 455/455 455/455

    (blr 0 C 36/36 36/36 357/357 465/465 465/465

    ppm

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    oC 112 112 110 110 110

    Ksc 13 13 13 13 13

    TPH 372 372 370 623 623

    % 18.2 18.2 17 6 6

    KSC 5.3 5.3 60 95 95

    mp 0 C 110 110 220 241 241

    0C 135 135 270 298 298

    0C 43 43 85 104 104

    mp 0 C 105 105 221 232 232

    0C 134 134 271 295 295

    0C 52 52 86 94 94

    mp 0 C 74 74 200 241 241

    mp 0 C 70 70 200 232 232

    0C 356/356 356/356 455/460 526/526 526/526

    (blr 0 C 298/298 298/298 450/460 515/515 515/515

    ppm

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    0C 93 93 90 99 99

    mp 0 C 238 238 218 242 242

    mp 0 C 234 234 215 238 238

    0C 451/451/ 451/451/ 520/520 530/530 530/530

    (blr 0 C 437/437 437/437 515/515 530/530 530/530

    ppm

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    tph 17 17 42 98 98

    mp. 0 C 367/342 367/342 500/498 524/526 522/523

    RAMETERS

    Unit DESIGNVALUE

    After Boiler

    Light Up

    Before HP-LP

    Bypass charging

    Before Turbine

    Rolling

    After Unit

    Synchronisation

    60% load

    old warm

    ure 120 175 227 283 283

    12 12 12 12 12

    110 110 110 110 110

    12.5 12.5 12.5 12.5 12.5

    300 300 423 637 637

    18 18 14.27 4.98 4.98

    0.78 8.5 39.62 117.87 117.87

    01.08.2009

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    Unit DESIGNVALUE

    After Boiler

    Light Up

    Before HP-LP

    Bypass charging

    Before Turbine

    Rolling

    After Unit

    Synchronisation

    60% load

    old HOT

    ure 325 325 312.5 318.3 318.3

    11 11 10.5 10.5 10.5

    100 100 96 100 100

    12 12 12.1 12 12

    320 320 392 517 517

    11.3 11.3 11.3 3 3

    61 61 96 86 86

    mp 234 234 240 244 244

    275 275 287 299 299

    95 95 104 129 129

    mp 243 243 242 259 259

    265 265 285 298 298

    129 129 100 119 119

    mp 277 277 242 249 249

    mp 277 277 244 282 282

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    378/377 378/377 514/502 529/516 529/516

    (blr 420/420 420/420 487/478 510/522 510/522

    0.1 0.1 0.15 0.25 0.25

    r 108 108 133 139 139

    w - - 185/190 441/409 441/409

    - - 80 770 770

    - - 32 87 87

    mp. NA/428 NA/428 NA/500 NA/548 NA/548

    RAMETERS

    Unit DESIGNVALUE

    After Boiler

    Light Up

    Before HP-LP

    Bypass charging

    Before Turbine

    Rolling

    After Unit

    Synchronisation

    60% load

    old Warm

    ure 122 232 234 310 310

    10 10 10 10 10

    108 108 108 108 108

    13 13 13 13 13

    318 395 342 690 690

    10.23 10.59 10.59 5 5

    21.08.2009

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    4.5 30 30 107 107

    mp 135 193 192 288 288

    145 226 219 319 319

    50 92 90 122 122

    mp 140 176 175 275 275

    145 225 215 318 318

    52 79 85 127 127

    mp - 140 148 320 320

    mp - 159 159 287 287

    153/154 335/342 335/336 540/535 540/535

    (blr 69/68 329/330 335/336 501/525 501/525

    0.18 0.186 0.186 0.18 0.18

    r 78 80 80 151 151

    w -/'- 78/85 78/85 614/540 614/540

    - - 800 830 830

    - - - 123 123

    mp. 160/119 440/363 440/364 540/530 540/530

    RAMETERS

    30.08.2009

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    Unit DESIGNVALUE

    After Boiler

    Light Up

    Before HP-LP

    Bypass charging

    Before Turbine

    Rolling

    After Unit

    Synchronisation

    60% load

    old Hot

    ure 226 226 317 317 317

    10.75 10.75 10.4 10.3 10.3

    104.7 104.7 107 108 108

    12.3 12.3 12.3 12.06 12.06

    281 281 387 552 552

    19.3 19.3 10.6 2.92 2.92

    8 8 85.8 102.6 102.6

    mp 128 128 199 238 238

    144 144 227 267 267

    56 56 86.9 101 101

    mp 132 132 195 235 235

    28 28 230 284 284

    68 68 70 95 95

    mp 112 112 132 221 221

    mp 108 108 191 232 232

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    25/343 25/343 509/499 515/515 515/515

    (blr - - 490/488 518/518 518/518

    0.068 0.068 0.068 0.029 0.029

    r 110 110 110 173 173

    w - - 179/262 403/438 403/438

    - - 675 708 708

    - - 17 97 97

    mp. 180/171 180/171 502/479 515/518 515/518

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    N1

    (RPM)

    N2

    (RPM)

    Full Load REMARKS

    ld/warm /

    ed on

    r (RPM)

    600 3000 3000

    am

    /Cm2)

    88 85 150

    Stage

    ure

    12 15 147

    team

    /Cm2)

    12 12 36

    e -De C

    510 508 540

    e-Deg C

    322 335 339

    e-Deg C

    503 502 537

    id wall 499 501 519

    45 52 22

    acuum- 0.1 0.1 0.11

    NS:16/17/27/1

    9/741//37/37

    /23/4663/74/34/52/14

    NS:

    1/0/1/0/0/0

    /6

    2/3/4/2/3

    /1/15

    5/2/11/8/2/7/11

    EMP.

    /2/3/4

    51/51/63/5

    5

    65/60/81/

    80/

    67/59/87/81

    5/6/7 30/49/48 73/74/65 /74/74/64

    FT: -0.22 -0.22 -0.2

    VE EXP.: -0.12 0.01 -0.76

    VE EXP.: 2.5 2.97 5.6

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    ld/warm /

    warm

    ed on

    r (RPM)

    600 3000 3000

    am

    /Cm2)

    51 51 149

    Stage

    ure

    6.9 8.9 138

    team

    /Cm2)

    10 10 35

    e -De C

    380 390 535

    e-De C

    262 265 340

    e-Deg C

    390 395 535

    id wall 284 288 509

    50 70 30

    acuum- 0.075 0.075 0.09

    NS:

    54/12/16/

    19

    39/26/7/6

    2

    24.8/37.5/9.6/72

    .4

    NS:2/0.5/2/3/

    8/182/3/6/13/

    22/40 4/1/6/12/14/35

    EMP.

    /2/3/4

    44/46/58/

    55

    55/65/78/

    73 61/66/88/80

    5/6/7 57/58 77/65 82/66

    FT: -0.16 -0.15 -0.34

    VE EXP.: -0.83 -0.63 0.46

    VE EXP.: 0.23 0.39 4.59

    VE EXP.: 3.01 1.91 11.87

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    EXP: AT 24.1 24.1 23.6

    EXP: IP 5.6 5.4 9.8

    ART UP PARAMETERS

    N1

    (RPM)

    N2

    (RPM)

    Full Load REMARKS

    ld/warm /

    Hot

    ed on

    r (RPM)

    600 3000 3000

    am

    /Cm2)

    96 96 147

    Stageure

    10.8 12 137

    team

    /Cm2)

    12 12 36

    e -Deg C

    505 505 540/540

    e-De C

    313 313 342

    e-De C

    500 500 532/533

    id wall 491 491 511

    - - -

    GN

    UE

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    acuum- 0.09 0.09 0.08

    NS:

    35/45/12/5

    0

    35/48/12/

    58

    22/48/8/72

    NS:

    1.5/0.5/2.1/

    5.3/12

    3/2/5/14/

    26.4/24.5 3/3/8/10/18/35

    EMP.

    /2/3/4

    48/49/58/5

    6

    51/47/73/

    65 62/51/90/75/

    5/6/7 55/58 73/63 81/65

    FT: -0.3 -0.36 -0.37

    VE EXP.: -0.47 -1.36 0.4

    VE EXP.: 0.8 0.97 4.61

    VE EXP.: 6.7 8.92 11.9

    EXP: AT 23 23.1 23.5

    EXP: IP 9.6 9.8 10

    ART UP PARAMETERS

    N1

    (RPM)

    N2

    (RPM)

    Full Load REMARKS

    ld/warm /

    Hot

    GN

    UE

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    NS:

    7/12/18/2

    0/9

    87/32/36/

    27/33

    62/25653741

    NS:

    2.64/0.93/1/2/0.

    2/0.4/0.29

    7/3/3/10/1/10/

    24/8/3/15/3/22/10

    EMP.

    /2/3/4

    44/44/57/

    52/

    58/58/78/

    75/ 61/64/88/81

    5/6/7 51/51/46 67/69/49 74/73/82

    FT: -0.14 -0.16 -0.39

    VE EXP.: 1.11 2.8 -0.65

    VE EXP.: 2.33 2.6 8.44

    VE EXP.: 7.62 7.76 13.63

    EXP: AT 4.65 6.33 25.14

    EXP: IP 0.31 0.35 8.67

    ART UP PARAMETERS

    N1

    (RPM)

    N2

    (RPM)

    Full Load REMARKS

    ld/warm /

    warm

    ed on

    r (RPM)

    600 3000 3000

    GN

    UE

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    ART UP PARAMETERS

    N1

    (RPM)

    N2

    (RPM)

    Full Load REMARKS

    ld/warm /

    Hot

    ed on

    r (RPM)

    600 3000 3000

    am

    /Cm2)

    80 80 145

    Stage

    ure

    15 15 142

    team

    /Cm2)

    11 11 33.8

    e -Deg C510 510 537

    e-Deg C

    335 335 341

    e-Deg C

    515 515 538

    id wall 510 510 502

    45 42 80

    acuum- 0.1 0.1 0.085

    NS:

    125/20/33/

    20

    106/33/31

    /43/24

    69/26/65/35/42

    GN

    UE

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    NS:

    6/3/2/10/2/

    8/1

    7/3/1/11/1

    /11/1

    5/3/2/22/2/25/

    9

    EMP.

    /2/3/4

    47/47/62/5

    7

    58/60/83/

    81

    60/65/87/81

    5/6/7 55/55/58 76/74/52 72/72/52

    FT: -0.49 -0.45 -0.38

    VE EXP.: -1.08 -1.1 -0.44

    VE EXP.: 2.83 2.69 5.01

    VE EXP.: 11.14 11.03 13.34

    EXP: AT 25.14 25.1 25.14

    EXP: IP 8.67 8.69 8.57

    ART UP PARAMETERS

    N1

    (RPM)

    N2

    (RPM)

    Full Load REMARKS

    ld/warm /

    Hot

    ed on 600 3000 3000

    GN

    UE

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    am

    /Cm2)

    90 91 146

    Stage

    ure

    14 19 143

    team

    /Cm2)

    11 12 34

    e -Deg C

    500 500 538

    e-Deg C

    335 339 342

    500 500 537

    id wall 509 509 505

    44 49 77

    acuum- 0.1 0.1 0.09

    NS:

    120/19/31/

    21

    113/31/2

    7/50/27

    70/25/64/34/42

    NS:

    5/2/2/9/2/9

    /28/3/1/9/

    1/11/2

    5/3/2/21/2/24/

    10

    EMP.

    /2/3/4

    48/48/63/5

    7

    53/55/7

    0/65

    60/65/86/80

    5/6/7 54/55/57 64/64/49 72/71/52

    FT: -0.48 -0.45 -0.37

    VE EXP.: -1.04 -0.65 -0.44

    VE EXP.: 2.87 2.01 5.01

    VE EXP.: 11.1 11.31 1.25

    EXP: AT 25.1 25.14 25.12

    EXP: IP 8.3 8 8.6

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    ART UP PARAMETERS

    N1

    (RPM)

    N2

    (RPM)

    Full Load REMARKS

    ld/warm /

    warm

    ed 650 3000 3000

    am

    /Cm2)

    40 40 145.8

    Stage

    ure

    5.66 8.98 143

    team

    /Cm2)

    8 7.56 33.7

    e -Deg C

    380 380 537

    e-Deg C

    282 282 341

    GN

    UE

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    e-Deg C

    370 370 537

    id wall 244 248 508

    61.62 48.55 69

    acuum- 0.076 0.08 0.09

    NS:

    16/19/20/2

    2/9

    73/33/37/

    28/30

    69/25/65/34/41

    NS:

    2/1/0/3/0/0

    /0

    5/6/3/13

    /1/9/1

    5/3/2/21/2/24/

    10

    EMP.

    /2/3/4

    44/456/48/

    53

    51/55/5

    6/80

    60/64/85/79

    5/6/7 65/58/47 72/60/50/ 72/71/53

    FT: -0.24 -0.26 -0.37

    VE EXP.: -0.03 -0.09 -0.4

    VE EXP.: 1.13 0.84 4.8

    VE EXP.: 6.31 4.53 12

    EXP: AT 11.66 11.34 25

    EXP: IP 4.47 4.45 8

    ART UP PARAMETERS

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    FT: -0.3 -0.34 -0.25

    VE EXP.: -1.2 -0.9 0.8

    VE EXP.: 1.2 1 4.4

    VE EXP.: 8.5 6.8 11.2

    EXP: AT 23.6 23.4 23.2

    EXP: IP 10.1 10.1 9.9

    ART UP PARAMETERS

    N1

    (RPM)

    N2

    (RPM)

    Full Load REMARKS

    warm

    ld/warm /

    ed on

    r (RPM)

    600 3000

    am

    /Cm2)

    30 30 146

    Stage

    ure

    3.9 8 138.5

    team

    /Cm2)

    5 3.45 35

    e -Deg C

    335 352 538

    GN

    UE

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    e-Deg C

    250 218 342

    e-Deg C

    335 350 530

    id wall 234 235 538

    - - -

    acuum- 0.13 0.1 0.07

    NS:

    2.7/25.4/20

    .4

    83/23/76/

    23

    105/25/70/33

    NS:

    4/2.3/5/6/2

    23/23

    6/5/16/1

    0/21/12/

    7/17

    10/13/16/15/1

    5/15

    EMP.

    /2/3/4

    52/45/56/5

    676/65/9

    5/80

    73/70/98/82

    5/6/7 56/55 80/69 84/73

    FT: 0.214 0.3 -0.13

    VE EXP.: -0.6 -0.154 -1.6

    VE EXP.: 0.39 0.94 3.15

    VE EXP.: 14.64 14.654 14.65

    EXP: AT 4.64 4.53 21.22

    EXP: IP 2.12 2.21 8.76

    ART UP PARAMETERS

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    N1

    (RPM)

    N2

    (RPM)

    Full Load REMARKS

    Hot

    ld/warm /

    ed on

    r (RPM)

    600 3000

    am

    /Cm2)

    86 74 144

    Stage

    ure

    10.55 13.4 144

    team

    /Cm2)

    9.72 10.7 34.5

    e -Deg C

    422 454 535

    e-Deg C

    284 282 338

    e-Deg C

    456 467 542

    id wall 420 419 472

    53 41 112

    acuum- 0.128 0.128 0.095

    NS:

    18.75/41/2

    9/28

    80/31/47/

    38/34

    59/30/71/39/36

    NS:

    2/3/4/5/0.2/

    2.4/1.177/2/2/6/

    2/12/4

    4/5/2/21/2/22/

    11

    EMP.

    /2/3/4

    48/46/61/5

    664/60/8

    7/7

    64/65/88/82

    5/6/7 54/55/48 73/73/52 74/73/53

    GN

    UE

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    FT: -0.31 -0.28 -0.22

    VE EXP.: -0.41 -0.41 0.89

    VE EXP.: 0.95 1.11 5.25

    VE EXP.: 9.36 9.24 13.3

    EXP: AT 21.64 21.21 22.05

    EXP: IP 8.5 8.5 8.09

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    ed

    aebareli

    NG RECOMMENDATIONS SUMMERY(2008-2009)

    )

    . :

    :

    RIPPING :

    RIPPING :

    site) :

    RECOMMEND

    ATIONS (By

    site) :

    Action taken /

    To be taken by

    Present status

    RECOMMEND

    ATIONS (By

    OS NR)

    Action to be

    taken by

    Present status

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    ed

    aebareli

    NG RECOMMENDATIONS SUMMERY(2008-2009)

    )

    . :I/08-09/02

    : 0702

    RIPPING 14/05/2008

    RIPPING : 15:29 Hrs.

    site) : Unit was running normal with mill A, B,C & D in service without oil suppor

    as found that all feeders connected to 220 KV Main Bus II (GT I, ST-I and trans

    wing in the system (because of storm) resulted in overvoltage of Raebareli III line of generator breaker at full load resulted in tripping of turbine on electrical oversp

    RECOMMEND

    ATIONS (By

    site) :

    Action taken /

    To be taken by

    Present status

    PSL of

    Numerical relay

    should be part of

    approved relay

    setting and

    should befactory tested

    during PDI.

    PE ( Electrical) Letter given to

    AGM ( COS) by

    AGM (O&M)

    RECOMMEND

    ATIONS (By

    OS NR)

    Action to be

    taken by

    Present status

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    PSL of

    numerical relay

    should be

    configured by

    electrical

    maintenance

    group at site as

    per approved

    protection

    scheme and

    tested by

    simulation

    before putting

    the numerical

    relay in

    operation

    ed

    aebareli

    NG RECOMMENDATIONS SUMMERY(2008-2009)

    )

    . :I/08-09/06

    : 1108

    RIPPING 06/09/2008

    RIPPING :13:21 Hrs.

    site) : Unit was running at 200 MW with mill A,B,C,D in service without oil supp

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    On checking it

    was found that

    BFP-A tripped

    on Negative

    Phase Sequence

    due to reverse

    connection of

    one CT of BFP-

    A.

    RECOMMEND

    ATIONS (By

    site) :

    Action taken /

    To be taken by

    Present status

    BFP discharge

    Pressure Very

    low Protection

    to be removed inline with st-II &

    st-III.

    DGM ( C& I) Implemented

    RECOMMEND

    ATIONS (By

    OS NR)

    Action to be

    taken by

    Present status

    ed

    aebareli

    NG RECOMMENDATIONS SUMMERY(2008-2009)

    )

    . :I/08-09/07

    : 0509

    RIPPING 11/10/2008

    RIPPING : 17:13 Hrs

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    site) : Unit was running at 218 MW with mill ABCD in service, without oil suppor

    Hrs. Mill- F and all oil guns were taken out. Load increased to 218 MW at 17:04

    continuous high FW flow of around 800 T / Hr drum level started increasing and

    ysis it was found that with the increase of firing, load increased to 218 MW from 1

    RECOMMEND

    ATIONS (By

    site) :

    Action taken /

    To be taken by

    Present status

    Tuning of Drum

    level control

    loop to be done,

    till such time

    during

    disturbance

    drum level

    controller may

    be taken inmanual.

    C&I Implemented

    RECOMMEND

    ATIONS (By

    OS NR)

    Action to be

    taken by

    Present status

    Legible SOE and

    related

    parameters color

    trends needs to

    be attached with

    trip report for

    better tripanalysis.

    Reason for mill-

    B tripping is not

    established. All

    the alarm points

    for the mill

    tripping needs to

    be properly

    checked for all

    the units of unit#1

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    Bearing capable

    of high variable

    dynamic load

    and axial

    displacement

    suitable to fan

    needs to be used

    RECOMMEND

    ATIONS (By

    OS CC)

    Action to be

    taken by

    Present status

    Both ID fan A &

    B bearings were

    replaced during

    the last OH.

    Bearing damage

    of both fanswithin two

    months of

    completion of

    overhaul

    indicates that the

    quality of work

    done on ID fans

    during OH was

    not OK.

    As given in site

    recommendation( Separately

    annexed in trip

    analysis report

    ,only genuine

    bearings from

    OEM are to be

    procured.

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    One Fan was

    under shutdown

    and other fan

    was running

    with abnormal

    condition. In

    such a situation,

    the loading of

    the fan should

    have been

    regulated

    keeping a close

    watch on bearing

    temp. Operating

    staff have to be

    instructed

    accordingly

    ed

    aebareli

    NG RECOMMENDATIONS SUMMERY(2008-2009)

    )

    . :I/08-09/09

    : 0502/0601

    RIPPING : 02/11/2008

    RIPPING : 13:18 Hrs.

    site) : Unit was running at 210 MW with mills A, B, C & D in service without oil s

    king it was found that BFP C Discharge pressure very low protection was earlie

    RECOMMEND

    ATIONS (By

    site) :

    Action taken /

    To be taken by

    Present status

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    BPF

    recirculation

    valve should be

    in open

    condition along

    with discharge

    valve in auto

    standby mode as

    provided in Unit

    #2 logic

    DGM ( C& I) Implemented

    RECOMMEND

    ATIONS (By

    NR OS)

    Action to be

    taken by

    Present status

    Whenever

    normalization of

    protection is

    being carried out

    by C&Imaintenance

    person should

    ensure whether

    any trip

    condition persist

    ,or not .A

    documented

    procedure

    should be made

    available for

    working of critical

    equipments.

    Site

    recommendation

    for review of

    protection may

    please be seen

    by OS-CC and if

    found in order

    may please be

    concurred by PECC

    RECOMMEND

    ATIONS (By

    OS CC)

    Action to be

    taken by

    Present status

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    The bypassing

    and

    normalization of

    protection shall

    be done by C& I

    only after

    ensuring that no

    trip command is

    present .such

    bypassing or

    normalising

    should be

    recorded in

    register.

    Tripping

    analysis report

    should contain

    one trip codeonly based on

    root cause

    analysis. In this

    case , human

    error code is

    Any proposal for

    modification of

    protection

    should be sent

    separately to CC

    OS after approval of

    station head.

    Bypassing /

    normalizing of

    protection

    should be

    defeated in OWS

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    RECOMMEND

    ATIONS (By

    site) :

    Action taken /

    To be taken by

    Present status

    DGM ( C & I )

    DGM ( EMD)

    PE

    (Elect / C & I)

    RECOMMEND

    ATIONS (By

    OS NR)

    Action to be

    taken by

    Present status

    HT breaker ON

    status is to beused in logic and

    interlock after

    ANDing with

    service remote

    status in

    DDCMIS.

    ited

    ebareli

    ONS SUMMERY(2008-2009)

    13/03/2009)

    II

    HT breakerOn

    status is to be

    used in logic andinterlock after

    ANDing with

    service remote

    status. Necessary

    modification is

    to be done in

    DDCMIS.

    Implemented

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    13/03/2009)

    II

    . : III/ 08- 09/04

    : 0119

    1 DATE OF TRIPPING : 06/09/2008

    2 TIME OF TRIPPING :. 9:47 Hrs

    Analysis (By

    site)

    : Unit was

    running at 197

    MW with mill

    AB, EF in

    service without

    oil support. FRS

    control valve

    FW-01 was in

    service .Gland

    leakage was

    observed in this

    valve.

    was

    ut the

    etween

    creased

    eakage

    took

    sitioner

    l valve

    ve got

    ding to

    water

    boiler

    m Level

    4 RECOMMEND

    ATIONS (By

    site) :

    Action taken /

    To be taken by

    Present status

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    ebareli

    ONS SUMMERY(2008-2009)

    13/03/2009)

    II

    . : III/ 08- 09/ 05

    : 0113

    1 DATE OF TRIPPING : 13/11/2008

    2 TIME OF TRIPPING : 19:05:18

    Analysis (By

    site)

    running normal

    with mill -AB

    and CD in

    service. At 18:28

    hrs feeder C

    Discharge

    plugged and

    No coal Flow

    alarm appeared.

    Mill CD to EF

    change over

    started at 18:38

    hrs. After taking

    mill EF End-E

    in service, mill-

    CD End-C

    shutdown

    command wasgiven at 19:02

    hrs. At 19:05:17

    Mill AB and CD

    Seal air to mill

    DP low and

    Transmitter

    disturbed alarm

    appeared in

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    it was

    all of

    D End

    ressure

    1031

    495

    End-

    re also

    412

    166

    d outlet

    nd C

    in the

    header

    also

    ased tom 823

    e next

    the

    essures

    reased,

    down.

    d fall of

    primary

    ight be

    aneous

    thein the

    of CD.

    urbance

    the

    header

    tuation

    ressure

    tection

    ng of

    of all

    4 RECOMMEND

    ATIONS (By

    site) :

    Action taken /

    To be taken by

    Present status

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    Screw conveyor

    vibration

    monitoring is to

    be done on trial

    basis in one mill

    to detect

    breakage of

    helix and tie rod.

    DGM ( C & I) Is being

    implemented in

    mill-3CD

    DGM (OPN)/

    DGM ( BMD )

    Mill coal level

    measurement

    transmitter

    impulse line auto

    purging to be

    ensured to avoid

    false level sensing

    resulting in lean

    air mixture

    leading to

    explosion.

    In case of no coal

    flow ,PA flow

    reduction

    commensurate

    to other end coal

    flow as mill outlet

    temp control to

    be done to avoid

    any

    instantaneous

    combustion

    /Explosion

    6 RECOMMEND

    ATIONS (By OS-

    CC ) :

    Action to be

    taken by

    Present status

    Other

    possibilities are

    to be explored to

    avoid such

    conditions.( with

    other stations

    also)

    Consulted with

    other projects

    5 RECOMMEND

    ATIONS (By OS-

    CC ) :

    Action to be

    taken by

    Present status

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    The

    recommendation

    given by site done

    not match with

    analysis of

    tripping. Site to

    give their

    recommendationbased on the trip

    analysis

    Unit was not

    stabilized

    following feeder

    C discharge

    pluggedalarm.Oil

    guns cut in to

    stabiles the mill

    were cut out

    quickly

    Mill CD was run

    for half an hour

    with one side

    feeder. Such

    operation should

    be minimized as

    this increases the

    risk of a mill Fire

    ited

    ebareli

    ONS SUMMERY(2008-2009)

    ( 13/03/2009)

    II

    . :

    :

    1 DATE OF TRIPPING :

    OF TRIPPING :

    Analysis (By

    site) :.

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    sis (By

    : Unit was

    running at 205

    MW with mill

    A,B,C,D & E in

    service, without

    oil support. Allof sudden unit

    load became

    zero and turbine

    controller

    changed to speed

    from load

    controller. At

    13:53:28 Hrs.

    generator,

    turbine and

    boiler tripped onAnti motoring

    Protection (Class

    A Protection).

    nalysis

    at all of

    the 4

    s of

    closing.

    he load

    demand

    controled fully

    ed on

    otoring

    ction.

    4 RECOMMEND

    ATIONS (By

    site) :

    Action taken /

    To be taken by

    Present status

    NIL

    RECOMMENDATIONS (By

    OS-NR ) :

    Action to betaken by

    Present status

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    Oil support

    should be taken

    during mill

    changeover to

    stablise the

    flame during

    poor coal quality

    regimes and

    withdrawn

    gradually after

    ensuring flame

    stability.

    Being followed

    ited

    ebareli

    ONS SUMMERY(2008-2009)

    ( 13/03/2009)II

    . : II/08-09/4

    : 0509

    1 DATE OF TRIPPING : 09/07/2008

    OF TRIPPING : 5:33 hrs

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    Analysis (By

    site)

    : Unit was

    running normal

    at 217 MW with

    mill A,B,C,D

    and E in service

    without oil

    support. All of

    sudden all the

    mills tripped on

    PA header

    pressure Very

    Low Protection

    and unit tripped

    in Loss of All

    Fuel.

    ressure

    unningFrom

    s found

    A fans

    ing at

    Hrs.

    ecrease

    ressure

    mit. All

    mills

    header

    lowd unit

    of all

    hrs.

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    ping it

    hat at -

    furnace

    D fan-B

    ,FRS

    became

    scoops45 %

    approx)

    ons of

    me non

    But on

    no

    was

    any

    All

    foundon for

    uld not

    Earth

    pected,

    in any

    4 RECOMMENDATIONS (By

    site) :

    Action taken /To be taken by

    Present status

    Nil

    RECOMMEND

    ATIONS (By

    OS-NR ) :

    Action to be

    taken by

    Present status

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    The control

    supply extended

    for field

    instrumentation

    should have

    individual

    isolation( fuse

    provision )so

    that the earth

    fault in the field

    gets isolated on

    its own and dose

    not cause overall

    disruption in the

    supply bus.

    ited

    ebareli

    ONS SUMMERY(2008-2009)

    ( 13/03/2009)

    II

    . : II/08-09/5

    : 0501

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    1 DATE OF TRIPPING : 14.07.2008

    OF TRIPPING : 14:29:27 hrs.

    Analysis (By

    site)

    : Unit was

    running normal

    at 213 MW with

    coal mill

    A,B,C,D and Ein service

    without any oil

    support. All of a

    sudden both the

    PA fans got

    unloaded .All

    mills tripped on

    PA Header

    Pressure Very

    Low protection

    and unit trippedon Loss of all

    Fuel. Just after

    unit tripping it

    was observed

    that all the push

    buttons of the

    desk became

    inoperative.

    hecking

    s found

    Mill-Bdamper

    ch was

    ance in

    ply was

    due to

    4 RECOMMENDATIONS (By

    site) :

    Action taken /To be taken by

    Present status

    Nil

    RECOMMEND

    ATIONS (By

    OS-NR ) :

    Action to be

    taken by

    Present status

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    The control

    supply extended

    for field

    instrumentation

    should have

    individual

    isolation( fuse

    provision )so

    that the earth

    fault in the field

    gets isolated on

    its own and dose

    not cause overall

    disruption in the

    supply bus.

    ited

    ebareli

    ONS SUMMERY(2008-2009)( 13/03/2009)

    II

    . : II/08-09/06

    : 0114

    1 DATE OF TRIPPING : 28/07/2008

    OF TRIPPING : 01:12 hrs.

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    Analysis (By

    site)

    : Unit was

    running normal

    at 215 MW with

    mill A, B, C,D &

    E in service

    without oil

    support .At 1:10hrs heavy

    hunting was

    observed in the

    current of R C

    feeder A and

    mill A .

    Immediately

    Mill F was

    taken in service.

    But unit tripped

    on FlameFailure

    Protection.

    ion of

    ill -A,

    temp

    leading

    hot air

    pening

    mper on

    This

    ance inunit

    flame

    n.

    feeder

    nalysis

    was as

    2 %

    4 RECOMMENDATIONS (By

    site) :

    Action taken /To be taken by

    Present status

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    Full opening of

    the cold air

    damper in auto

    on mill hot air

    gate closing

    protection to be

    modified.

    DGM ( C & I) Implemented

    5 RECOMMEND

    ATIONS (By

    OS-NR ) :

    Action to be

    taken by

    Present status

    To prevent entry

    of big size coal

    ,stones, foreign

    material etc, in

    feeders

    ,preventive

    checkes of the

    coal crusher breakers plates

    ,case screens and

    & bunker grill

    should be

    ensured .

    Blending of coal

    must be resorted

    , to over come

    the problems

    created by the

    the low VM coal

    Mill changeover

    procedure to be

    reviewed and

    desk operator to

    be advised

    accordingly.

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    r flow

    el flow

    were

    auto

    ripping.

    gate of

    actuale boiler

    7 T/Hr

    it load

    ing but

    al coal

    flow

    not

    because

    as in

    on. To

    ad fueldemand

    5 T/hr

    Hr and

    r flow

    3 T /hr

    T/Hr.

    ue gas

    /6.9 %

    4 RECOMMEND

    ATIONS (Bysite) :

    Action taken /

    To be taken by

    Present status

    During furnace

    disturbance total

    air flow should

    be maintained

    according to

    total fuel flow.

    DGM ( OPN) Being followed

    RECOMMEND

    ATIONS (By

    OS-CC ) :

    Action to be

    taken by

    Present status

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    The trend report

    attached

    suggested that

    the rise in mill

    outlet temp of

    mill was gradual

    .The desk

    operator must

    investigate the

    abnormal rise in

    mill outlet temp

    and initiate

    corrective

    actions . the

    cause of rise in

    temp is

    gradually an

    interruption in

    coal flow which

    will be

    associated with a

    drop in load or

    an interruption

    in cold air flow

    RECOMMEND

    ATIONS (By

    OS-CC ) :

    Action to be

    taken by

    Present status

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    Unit combustion

    control systems

    like air and fuel

    flow were in

    auto at the time

    of tripping .

    closure of hot air

    gate has to be

    delt very

    carefully in a

    case mills

    remains in

    service and

    accumulates coal

    bed from feeder

    .The following

    points need to be

    taken care while

    handling such an

    emergency. :---

    Hot air gate

    closes in a

    running mill due

    to coal flow

    interruption or

    improper

    response/ Failure

    of temp controlsystem. Such

    closing will

    initiate Mill

    outlet Temp Hi

    alarm during

    such conditions,

    control loop like

    fuel ,air shall be

    taken out of

    auto.

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    Efforts should

    be made to admit

    cold air into mill

    and reduce the

    feeder speed.

    This step will

    ensure that

    minimum load

    reduction takes

    place in the unit.

    Opening of hot

    air gate after

    normalizing mill

    outlet temp has

    to be done very

    care fully .All

    along mill fuelair ratio should

    be maintained.

    If there is

    difficulty in

    admitting cold

    air damper into

    mill, feeder

    should be

    stopped

    temporarily and

    unit load shall bebrought down.

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    ited

    ebareli

    ONS SUMMERY(2008-2009)

    ( 13/03/2009)

    II

    . : II/08-09/10 : 0112

    1 DATE OF TRIPPING : 05/12/2008

    2. TIME OF TRIPPING : 16:34:50 hrs.

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    Analysis (By

    site)

    : Unit was

    running at 219

    MW with mill B,

    C,D,E & F in

    service . MillA

    was being

    normalized aftercancellation of

    PTW by BMD.

    At 16:33:48 Hrs

    mill-C tripped

    on thermal

    overload.

    Immediately

    Mill-A was

    started and oil

    guns tried in AB

    elevation .Butguns did not

    prove and Flame

    Scanners started

    flickering .Unit

    tripped on

    Flame Failure

    Protection.

    ripped,

    urbed (

    o -43

    A wase. Due

    Hot air

    ll-A, a

    air of

    furnace

    vation,

    upport,

    furnace

    n and

    Flame

    n.

    4 RECOMMEND

    ATIONS (By

    site) :

    Action taken /

    To be taken by

    Present status

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    Passing of the

    Hot air dampers

    of mills is to be

    arrested.

    DGM ( BMD ) Being followed

    Thermal

    overload relay of

    mill-2C is to be

    checked.

    DGM ( EMD) Checked ,found

    O.K

    RECOMMEND

    ATIONS (By

    NR-OS ) :

    Action to be

    taken by

    Present status

    when low VM

    coal is being

    fired ,tripping of

    one mill will

    result in major

    disturbance in

    the furnace. Atsuch a point ,it is

    advisable to take

    oil support and

    stabiles the

    furnace first

    before taking the

    other / same

    mill in service.

    As per

    observations

    contained in thetrip report of the

    shift charge

    engineer, mill

    C tripped on

    thermal overload

    while taking 35 -

    37 Amp current

    which is well

    below the trip

    value, current

    indication errorneeds to be

    looked into

    along with

    checking of

    overload relay.

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    RECOMMEND

    ATIONS (By

    OS-CC ) :

    Action to be

    taken by

    Present status

    During such

    cases of mill

    tripping, oil gun

    should be proven

    first before try to

    take another mill

    in service. This

    will improve the

    flame condition

    and stabilize the

    furnace. Cutting

    in of another

    new mill will

    induce more

    disturbance.( A

    40 mm

    disturbance is

    normal and

    should not cause

    panic)

    As per the report

    , a passing of 30

    T /Hr observed

    from mill-A hot

    air damper .Thisis very High

    level of passing

    and it should be

    rectified at the

    earliest.

    mited

    ebareli

    ONS SUMMERY(2008-2009)

    13/03/2009)

    V

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    .

    1 DATE OF TRIPPING :

    2 TIME OF TRIPPING :

    s (By

    4 RECOMMEND

    ATIONS (By

    site) :

    Action taken /

    To be taken by

    Present status

    5 RECOMMEND

    ATIONS (By

    OS-NR) :

    Action to be

    taken by

    Present status

    ited

    ebareli

    ONS SUMMERY(2007-2008)

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    02/08/2008)

    V

    . : IV/ 08-09/01

    : 0112

    1 DATE OF TRIPPING : 24/05/20082 TIME OF TRIPPING : 00:27 Hrs

    Analysis (By

    site) : Unit was

    running at 175

    MW with mill CD

    & EF in service

    ,without oil

    support . Due to

    low load schedule,while reducing the

    load ,furnace got

    disturbed and unit

    tripped on Flame

    Failure

    protection.

    4 RECOMMEND

    ATIONS (By

    site) :

    Action taken /

    To be taken by

    Present status

    NIL5 RECOMMEND

    ATIONS (By

    OS-NR) :

    Action to be

    taken by

    Present status

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    Load reduction

    in the boiler

    ,particularly

    during low VM

    regimes has to

    be done

    gradually ,taking

    care of all the

    parameters

    affecting the

    combustion , so

    that there is

    minimum

    disturbance to

    the flame in the

    furnace .if

    required , oil

    support can be

    taken to stabilize

    the flame

    Being followed

    6 RECOMMEND

    ATIONS (By

    CC-OS)

    Action to be

    taken by

    Present status

    ited

    ebareli

    ONS SUMMERY(2008-2009)

    13/03/2009)

    V

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    . IV/ 08-09/ 2

    203

    1 DATE OF TRIPPING : 02/07/2008

    2 TIME OF TRIPPING : 12:18 Hrs

    s (By

    running

    mill AB

    ice and

    ort. All

    pped on

    ry low

    On checking at

    local it was found

    that heavy gland

    leakage had

    developed in

    steam side manual

    isolating valve of

    drum level

    transmitter no. LT

    674 D .This

    transmitter started

    showing very highvalue (False) ,FRS

    control valve came

    down and came to

    manual mode due

    to deviation of

    transmitters. Due

    to sudden and

    large amount of

    reduction of feed

    water flow, unit

    tripped on Drum

    Level very Low

    protection.

    4 RECOMMEND

    ATIONS (By

    OS-NR) :

    Action to be

    taken by

    Present status

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    In case of auto

    control failure,

    the desk operator

    has to take quick

    action for

    controlling the

    drum level. To

    deal with

    indication

    discrepancies,

    Hydrastep is

    generally more

    dependable since

    it gives direct

    indication of

    both LHS &

    RHS.

    The reason for

    failure of auto

    control also

    needs to be

    investigated and

    addressed. Auto

    control should

    not fail with the

    failure of one

    transmitter.

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    Any leakage in

    impulse line of

    critical

    instruments

    should be

    attended

    immediately

    after obtaining

    permission from

    operation by

    means of

    suitable safety

    documents

    (LWC/PTW).Ne

    cessary

    precautions has

    to be taken ( like

    suspending the

    instrument

    service) to

    prevent unit

    ?equipment

    tripping before

    commencing of

    repair job.

    ited

    ebareli

    ONS SUMMERY(2007-2008)

    19/12/2008)

    V

    . . IV/ 08-09/ 03

    505

    1 DATE OF TRIPPING : 09/08/2008

    2 TIME OF TRIPPING : 06:46:14 Hrs.

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    running

    W with

    service.

    was in

    turbine

    control

    33 Hrs.

    cer Lub

    High

    n event

    itself .

    lub oil

    ken in

    tely. In

    ng was

    second

    ped. At

    in same

    n event

    tripped

    Furnace

    d Flame

    and FF

    started

    6:46:08

    ely oil

    in EF

    tripped

    it was

    t of tworeducer

    was not

    rly.

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    w master

    mand of

    aster is

    Boiler

    al fuel

    he two)

    ine is in

    hen millaux air

    d to mill

    osed. So

    pressure

    mmwc ,

    the air

    box to

    ux air

    ated to

    EF ,FF)

    ir flow

    d almost

    use one

    ir flow

    master

    manual

    ith the

    lower

    me and

    4 RECOMMEND

    ATIONS (By

    site) :

    Action taken /

    To be taken by

    Present status

    Mill Reducer

    Lubrication Not

    OK temp logic to

    be modified from

    1/2 to 2/3 with

    alarm.

    Temp logic

    modified from

    1/2 to 2/3

    Implemented

    Desk engineer

    should control air

    flow as per fuel

    flow during

    emergency to

    avoid lean mixture

    Instruction to be

    given to operation

    engineer

    Being followed

    5 RECOMMEND

    ATIONS (By

    OS-NR) :

    Action to be

    taken by

    Present status

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    Whenever unit is

    running on

    partial load, it is

    better to keep

    the gap between

    the running mills

    at minimum

    Any

    malfunctioning

    of trip devices

    should be

    immediately

    investigated. In

    this case , there

    was any

    opportunity to

    check the

    malfunctioningtemp switch

    when the the

    alarm appeared

    the first time

    Provision for

    providing an

    alarm with a

    setting lower

    than trip value

    to be explored.

    itedebareli

    ONS SUMMERY(2008-2009)

    13/03/2009)

    V

    . IV/ 08-09/ 04

    103

    1 DATE OF TRIP2 TIME OF TRIPPING : 17:09 Hrs.

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    s (By

    running

    mill CD

    service

    support.f ID fan

    pped on

    fault.

    incomer

    6.6 KV

    A also

    in lock

    nd earth

    Reserve

    ion Bus

    come in

    g torunning

    Bus-A,

    F. Mill

    on PA

    e Very

    and unit

    of All

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    in the

    m VFD

    eaker to

    sformer.

    E/F

    element

    UAT I/C

    ated and

    was in

    er ,it

    reverse

    from

    ch-I

    r, but it

    sec time

    g in its

    T2).On

    ation it

    at one

    relay of

    oing to

    Digital

    it was

    Digital

    r time

    sec and

    lockout

    me

    he UAT

    ngeover

    y from-1 was

    pping of

    Mill-CD

    header

    Low

    4 RECOMMEND

    ATIONS (By

    site) :

    Action taken /

    To be taken by

    Present status

    Tripping of UAT

    incomer Breaker

    on E/F from

    DDCMIS to be

    removed

    DGM ( EMD) Implemented

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    DGM ( EMD)

    DGM ( PE- Ele)

    itedebareli

    ONS SUMMERY(2008-2009)

    13/03/2009)

    V

    . IV/ 08-09/06

    104

    1 DATE OF TRIPPING : 03/11/20082 TIME OF TRIPPING : 20:42 Hrs.

    s (By

    was

    7 MW

    service

    upport.

    all the

    m Unit

    nd unit

    s of all

    Dead bus

    changeover, in

    case of fast

    changeover fails,

    is to be provided

    in stage-II .

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    site) :

    g at 217

    B, C, D

    without

    was in

    1:07:37

    sudden

    ed No

    equently

    and E

    Flame

    ed on

    Failure

    cking no

    bserveds except

    g and

    furnace

    r was

    gh ash

    w VM

    sample

    ort was

    -

    sh49

    4 RECOMMEND

    ATIONS (By

    site) :

    Action taken /

    To be taken by

    Present status

    Nil

    5 RECOMMEND

    ATIONS (By

    OS-NR) :

    Action to be

    taken by

    Present status

    Mill fineness

    must bemaintained

    within limits as

    it exacerbebates

    the already poor

    flame caused by

    low VM

    BMD Being followed

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    Blending of the

    coal must be

    resorted to

    overcome the

    problems created

    by low VM coal

    Being followed

    ited

    ebareli

    ONS SUMMERY(2007-2008)

    13/03/2009 )

    V

    . : V/ 08-09/ 03

    :0220

    1 DATE OF TRIPPING:03/05/2008

    2 TIME OF TRIPPING:18:20:00 Hrs.

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    with the present

    arrangement of

    instrumentation,

    the checking /

    purging of

    transmitter must

    be done after

    taking sufficient

    precaution to

    avoid unit

    tripping.

    Unit #5 OH has

    not been done

    since

    commissioning (

    short shutdown

    was taken in

    march 07 for PGtest ). In such

    conditions,

    opportunity

    based purging of

    all water

    connected

    protection

    devices , using

    compressed air

    should be

    arranged toensure complete

    cleanliness of

    pipes.

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