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ANALYSIS OF FREE GOVERNOR MODE OF OPERATION AT 10:50HRS DURING 800MW LOSS OF GENERATION IN KARNATAKA FREQUENCY TOUCHED 48.56HZ ON 17-AUGUST-05. FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05. ISGS. NTPC - 1. FREQ DROP FROM 50.14 HZ TO 48.56 HZ i.e. ~ 1.58HZ.

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ANALYSIS OF FREE GOVERNOR MODE OF OPERATIONAT 10:50HRSDURING 800MW LOSS OF GENERATION IN KARNATAKAFREQUENCY TOUCHED 48.56HZON 17-AUGUST-05

free governor mode of operation on 17 aug 05
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

ISGS

NTPC - 1

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 051
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

ISGS

NTPC - 2

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 052
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

ISGS

NTPC - 3

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 053
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

ISGS

NTPC - 4

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 054
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

ISGS

NTPC - 5

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 055
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

ISGS

NTPC - 6

UNIT OUT

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 056
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

ISGS

NLY II - 1

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 057
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

ISGS

NLY II - 2

UNIT OUT

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 058
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

ISGS

NLY II - 3

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 059
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

ISGS

NLY II - 4

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0510
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

ISGS

NLY II - 5

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0511
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

ISGS

NLY II - 6

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0512
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

ISGS

NLY II - 7

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0513
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

ISGS

NLY TPS I (Exp) - 1

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0514
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

ISGS

NLY TPS I (Exp) - 2

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0515
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

NTPC

SIMHADRI - 1

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0516
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

NTPC

SIMHADRI - 2

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0517
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

APGENCO

VTS-1

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0518
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

APGENCO

VTS-2

UNIT OUT

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0519
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

APGENCO

VTS-3

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0520
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

APGENCO

VTS-4

UNIT OUT

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0521
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

APGENCO

VTS-5

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0522
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

APGENCO

VTS-6

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0523
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

APGENCO

KTS-9

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0524
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

APGENCO

KTS-10

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0525
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

APGENCO

RYTPS-1

UNIT OUT

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0526
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

APGENCO

RYTPS-2

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0527
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

APGENCO

UPPER SILERU-3

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0528
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

APGENCO

UPPER SILERU-4

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0529
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

APGENCO

LOWER SILERU-3

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0530
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

APGENCO

SSLM RB-2

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0531
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

APGENCO

SSLM LB-2

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0532
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

APGENCO

N’SAGAR 3

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0533
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

KPCL

RTPS - 6

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0534
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

KPCL

SHARAVATHI – UNITS

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

SHARAVATHY GEN REDUCED TO 144MW FROM 820MW

free governor mode of operation on 17 aug 0535
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

KPCL

NAGJHERI – UNITS

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

NO GENERATION IN OTHER UNITS

free governor mode of operation on 17 aug 0536
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

KPCL

VARAHI-1

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

BOTH UNITS GENERATION REDUCED

free governor mode of operation on 17 aug 0537
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

KPCL

KADRA-1

UNITS OUT

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0538
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

KSEB

IDDUKKI – 2

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0539
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

KSEB

SABARIGIRI – 2

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0540
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

KSEB

KUTTIADI -1,2,3

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0541
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

KSEB

LOWER PERIYAR -3

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0542
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

TNEB

TTPS – 1

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0543
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

TNEB

TTPS – 5

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0544
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

TNEB

MTPS – 3

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0545
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

TNEB

NCTPS – 1

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0546
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

TNEB

NCTPS – 2

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0547
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

TNEB

KADAMPARAI – 1

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0548
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

TNEB

ALIYAR – 1

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0549
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

TNEB

KUNDAH III– 1

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ

free governor mode of operation on 17 aug 0550
FREE GOVERNOR MODE OF OPERATION ON 17-AUG-05

TNEB

KUNDAH IV– 1

FREQ DROP FROM 50.14 HZ TO 48.56 HZ

i.e. ~ 1.58HZ