Download - NTPC Performance December 08
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7/31/2019 NTPC Performance December 08
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Highlights
Kahalgaon Unit 6 declared commercial on30.12.2008
Sipat Unit 5 declared commercial on
01.01.2009 NTPC recorded highest ever day Generation
of 629.325 MUs on 17.12. 2008
NTPC Coal Stations recorded highest day
Generation of 559.738 MUs on 16.12.2008
Vindhyachal recorded highest day
generation of 80.606 MUs on 03.12.2008
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(Dec 2008)
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Monthly Performance
NTPC Coal station = Mus
Generation MUs
(Dec 2008)
2338.5
1992.9
1970.8
1590
1524.3
1488.3
1
072.3
972.3
787.8
771.3
649.2
475.3
468.8
344.6
306.1
0
400
800
1200
1600
2000
2400
2800
Vindh
yachal
Talcher
Kaniha
Ramag
undam
Korba
Rihand
S
ingrauli
F
arakka
Kah
algaon
Un
chahar
Simhadri
Dad
ri(Coal)
Badarpur
Sipat
Talcher
T
hermal
Tanda
MonthlyG
en(MUs)
16752
15770(Dec 07)
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Monthly Performance
NTPC Coal station = %
PLF %
103
.87
103
.67
102
.44
101
.88
101
.76
101
.32
100
.85
100
.69
100
.02
96
.41
93
.51
90
.62
90
.08
89
.29
85
.92
0
20
40
60
80
100
120
Da
dri
(Coa
l)
Simha
dri
Rihan
d
Ramagun
dam
Korba
Sipa
t
Unc
ha
har
Ta
lcher
Therma
l
Singrau
li
V
indhyac
ha
l
Tan
da
Ba
darpur
Fara
kka
Ta
lcher
Kan
iha
Ka
ha
lgaon
PLF(%)
(Dec 2008)
97.11
96.81(Dec 07)
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Monthly Performance
NTPC Coal Station = %
Availability Factor %
(Dec 2008)
100
100
99
.95
99
.83
99
.72
99
.17
98
.56
98
.48
97
.75
97
.55
97
.47
95
.48
94
.25
93
.54
91
.75
86
88
90
92
94
96
98
100
102
Sipa
t
Sim
ha
dri
Ta
lcher
Ka
niha
Da
dri(
Coa
l)
Ramagun
dam
Talcher
The
rma
l
Rihan
d
K
orba
Ka
halgaon
Unch
ahar
Sing
rau
li
Far
akka
Vindhya
cha
l
Badarpur
T
an
da
AVF
(%)
97.72
95.77(Dec 07)
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Monthly Performance
NTPC Coal Station = %
Planned Outage %
0 0 0 0 0 0 0 0 0 0 0 0
2.9
53.0
73.2
6
0
1
1
2
2
3
3
4
Singrauli
Rihand
Unchahar
Dadri(Coal)
K
orba
Vindhy
achal
Sipat
Ramagu
ndam
Sim
hadri
Kaha
lgaon
Ta
lcher
Kaniha
Ta
lcher
Th
ermal
Fa
rakka
T
anda
Bad
arpur
Planned
outage%
(Dec 2008)
0.36
2.19(Dec 07)
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Monthly Performance
NTPC Coal Stations = %
Forced outage
(Dec 2008)
0 0 0 0.0
50.2
8 0.83 1
.44
1
.52
1
.58 2
.25
2.4
5
2.5
3 3.2
5.1
8 5.75
0
1
2
3
4
5
6
7
Da
dri(Coal)
Sipat
Simhadri
Talche
rKaniha
Rama
gundam
Talcher
Thermal
Rihand
Korba
Farakka
Kahalgaon
U
nchahar
Singrauli
Badarpur
Tanda
Vindhyachal
Forcedoutage
%
1.91
1.89(Dec 07)
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Monthly Performance
NTPC Coal Stations = %
Equipment Partial Loss %
(Dec 2008)
0 0.
01
0.
04
0.
05
0.
07
0.
12
0.
12
0.
15
0
.26
0
.27
0.
31
0.
32
0.
38 0
.53
0.
77
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
Dadri(Coal)
Sipat
Talcher
Kaniha
Rihand
Talcher
Thermal
S
ingrauli
U
nchahar
Korba
Vind
hyachal
Ramagundam
S
imhadri
Farakka
Tanda
B
adarpur
Ka
halgaon
Equpt.Pa
rtialLoss%
0.21
0.16(Dec 07)
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Monthly Performance
NTPC Coal Stations = %
APC %
(Dec 2008)
6.37
5.
07
5.
18
5.
22
5.
55.
95
6.
04
6.
09
6.
15
6.
65
7.
12
7.
71
7.
72
9.
22
9.
54
12.
1
0
2
4
6
8
10
12
14
Simha
dri
Sipa
t
Ramagun
da
m Ta
lcher
Kan
iha
Fara
kka
Rihan
d
Vindhyac
ha
l
Korba
Singrau
li
Da
dri
(Coa
l)
U
nc
ha
har
Ka
ha
lgaon
Ba
darpur
Ta
lcher
Therma
l
Tan
da
A
PC%
6.38(Dec 07)
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Monthly Performance
NTPC Coal Stations = ml/KWh
Specific Oil ml/KWh
(Dec 2008)
0.0
10.0
4
0.0
4
0.0
5
0.0
6
0.0
70.1
2
0.1
30.1
40.1
4
0.3
80.5
60.6
1 0.7
50.7
9
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
Sipat
Dad
ri(Coal)
Ramagundam
Korba
S
imhadri
Rihand
Unchahar
Talcher
Thermal
S
ingrauli
Vind
hyachal
Kahalgaon
Tanda
B
adarpur
TalcherKaniha
Farakka
Sp.O
il
(ml/KWhr)
0.25
0.16(Dec 07)
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Monthly Performance
NTPC Coal Stations = Kg/ KWh
Specific Coal Kg/KWh
(Dec 2008)
0.699
0.5
98
0.6
18
0.6
23
0.6
45
0.6
61
0.6
68
0.6
82
0.7
0.7
09
0.7
37
0.7
68
0.7
91
0.8
0.8
03
0.8
17
0
0.1
0.2
0.30.4
0.5
0.6
0.7
0.8
0.9
Ramag
unda
m
Dadri(Coal)
Rihand
Unch
ahar
Sipat
K
orba
Sing
rauli
Vindhyachal
Sim
hadri
T
anda
Talcher
The
rmal
Far
akka
Badarpur
Ta
lcher
Ka
niha
Kahalgaon
Sp.
Coal(
Kg/KWH)
0.695(Dec 07)
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Monthly Performance
NTPC Coal Stations = Kcal/Kwh
Heat Rate Kcal/KWh
(Dec 2008)
2332
2346
2346
2350
2367
2368
2372
2373
2376
2381
2408
2413
2685
2719
2852
0
500
1000
1500
2000
2500
3000
Rihan
d
Sipa
t
Sim
ha
dri
Ta
lcher
Kan
iha
K
orba
Vindhyac
ha
l
Singrau
li
Ramag
un
da
mUnc
ha
har
Da
dri(Coa
l)
Fara
kka
Ka
ha
lgaon
Bad
arpur
T
an
da
Ta
lcher
Therma
l
Hea
tRa
te(Kca
l/Kw
h)
2393
2396(Dec 07)
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Monthly Performance
NTPC Coal Stations = MUs
Grid Loss ( outage + PL) MUs
(Dec 2008)
34
0 0 0 0 0 0 0 0.3 1
.3 2 2 2.5 4
.6 5.8
15.4
0
2
4
6
8
10
12
14
16
18
Korba
Vin
dhyac
ha
l
Sipa
t
Ramagun
da
mSimhadri
Ta
lcher
Kaniha
Ta
lcher
Thermal
Tanda
Unc
ha
har
Rihan
d
Da
dri
(Coa
l)
Singrauli
Farakka
K
ahalgaon
Badarpur
Gri
dLoss
(Mus
)
4.1(Dec 07)
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17/53WRHQNTPC Coal Stations = MUs
Coal Loss MUs
(Dec 2008)
419
0 0 0 0 0 0 0 0 0 0 0 0
64
.81
07
.4
246.8
0
50
100
150
200
250
300
Singrau
li
Rihan
d
Unc
ha
har
Tan
da
Da
dri
(Coa
l)
Ba
darpur
Korba
Vin
dhyac
ha
l
Sipa
t
Ram
agun
dam
Simha
dri
Ta
lcher
Therma
l
Fara
kka
K
aha
lgaon
Ta
lcher
Kan
iha
Lo
ss
Coa
l(Mus
)
Monthly Performance
166.7(Dec 07)
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Monthly Performance
NTPC Coal Stations = Nos.
No. of Outages
(Dec 2008)
0 0 01 1 1 1
2
4 45
67
9
11
0
2
4
6
8
10
12
Sipat
Ram
agundam
Simhadri
Rihand
D
adri(Coal)
Talch
erKaniha
Talcher
Thermal
Korba
Singrauli
Unchahar
Kahalgaon
Farakka
Badarpur
Vindhyachal
Tanda
No.of
Outage(Nos)
52
45(Dec 07)
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Monthly Performance
(Dec 2008)
DC, SG, AG (%)
106.4
105.3
7
104.4
2
103.9
4
103.7
8
102.8
102.6
2
101.5
4
100.8
2
98.3
3
95.9
3
92.8
7
91.4
90.5
5
85.9
998.6
9
103.2
3
105.3
7
104.0
5
103.9
103.7
8
102.8
101.1
3
101.5
4
100.4
8
98.3
3
92.9
5
91.7
6
90.8
8
90.5
5
85.4
298.2
6
105.3
3
106.3
5
104.6
104.7
8
104.6
2
103.7
1
102.2
8
102.3
4
101.2
1
98.7
6
94.3
7
92.3
4
91.6
91.2
3
87.0
599.1
2
0
20
40
60
80
100
120
Dadri(Coa
l)
Simhad
ri
Rihan
d
Ramagundam
Sip
at
Korb
a
Unchahar
TalcherThermal
Singrau
li
Vindhyachal
Badarpu
r
Tand
a
Farakk
a
TalcherKanih
a
Kahalgao
n
NTPC(Coa
l)
%
DC % SG % AG %
Monthly Performance
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( Apr to Dec 2008)
C l i P f
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Cumulative Performance
19457
16065
15923
13024
12547
11791
7763
6328
6311
6250
5448
4062
27
41
27
26
24
77
0
4000
8000
12000
16000
20000
24000
Vin
dhyachal
TalcherKaniha
Ramagundam
Korba
Rihand
Singrauli
Farakka
Simhadri
U
nchahar
Kahalgaon
Da
dri(Coal)
Badarpur
Talcher
Thermal
Sipat
Tanda
Gene
ration(Mus)
132914NTPC Coal Stations = MUs.
Cumulative Generation MUs
( Apr to Dec 2008)
129703(FY 07-08)
C l ti P f
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Cumulative Performance
NTPC Coal Stations = %
Cumulative PLF %
( Apr to Dec 2008)
88.85
98.2
7
96.8
7
95.8
8
95.0
5
93.9
7
92.7
9
91.0
7
90.4
3
90.2
9
89.3
3
87.2
9
85.3
1
81.1
4
80.0
4
73.5
2
0
20
40
60
80
100
120
Dadri(Coal)
Sipat
Simhadri
Rihand
Korba
Ramagunda
m
Unchahar
Vindhyachal
Talcher
Thermal
Singrauli
Badarpur
Tanda
Talcher
Kaniha
Kahalgaon
Farakka
PLF(%)
90.19(FY 07-08)
Cumulative Performance
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Cumulative Performance
NTPC Coal Stations = %
Availability Factor %
( Apr to Dec 2008)
96.65
95.6
5
94.33
93.2
5
92.0
9
91.6
9
91.5
6
91.5
2
90.1
3
89.9
4
89.7
5
89.3
4
87.6
8
85.9
3
85.8
9
80
82
8486
88
90
92
94
96
98
Sipat
Dadr
i(Coal)
Rihand
Simhadri
Ramagundam
Ba
darpur
T
alcher
Thermal
Korba
Vindh
yachal
T
alcher
Kaniha
Kahalgaon
Unchahar
Singrauli
Tanda
Farakka
AVF%
90.7
90.47(FY 07-08)
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Cumulative Performance
NTPC Coal Stations = %
Planned Outage %
( Apr to Dec 2008)
6.72
0
3.3
6
3.5
7 5.1
4
5.4
75.9
86.4
7
6.6
57.3
8
7.4
3
7.6
8
7.6
9
7.7
5 9.1
11
1.9
4
0
24
6
8
10
12
14
Sipat
Rihand
Dadri(Coal)
Kahalgaon
Badarpur
Simhadri
Ramagunda
mTalcher
Thermal
Korba
V
indhyachal
Talcher
Kaniha
Singrauli
Unchahar
Farakka
Tanda
PlannedOutage%
7.49(FY 07-08)
Cumulative Performance
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Cumulative Performance
NTPC Coal Stations = %
Forced outage %
( Apr to Dec 2008)
0.76
0.76
1
.11
1.4
2
1.4
41
.64
1.7
22
.13
2.3
1
2.4
42
.91
3.3
53
.93 4
.64
5.11
0
2
4
6
Da
dri
(Coa
l)
Simha
dri
Korba
Ba
darpur
Ram
agun
dam
Ta
lcher
Kan
iha
Ta
lcher
Therma
l
Tan
da
Rihan
d
Vin
dhyac
ha
l
U
nc
ha
har
Sipa
t
Fara
kka
Singrau
li
K
aha
lgaon
Force
dOu
tage
%
2.36
1.94(FY 07-08)
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Cumulative Performance
%NTPC Coal Stations =
Equipment Partial Loss %
( Apr to Dec 2008)
0.67
0.0
50.1
4
0.1
7
0.2
20.2
80.35 0
.42 0.49
0.6
9 1.0
2 1.3
61.4
21.5
2
2.2
52.8
7
0
1
1
2
2
3
3
4
D
adri(Coal)
Korba
Simhadri
Vindhyachal
Rihand
Singrauli
Unchahar
R
amagunda
mSipat
Talcher
Kaniha
Farakka
Tanda
Kahalgaon
Talcher
Thermal
Badarpur
Equpt
.PartialLoss%
0.67(FY 07-08)
Cumulative Performance
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Cumulative Performance
%NTPC Coal Stations =
APC %
( Apr to Dec 2008)
5.3
1
5.3
15.7
5
5.8
3
6.0
6
6.2
9
6.4
87
.15
7.3
7
7.5
17
.95
8.2
89.3
910
.06
12
.03
0
24
6
8
10
12
14
Sipa
t
S
imha
dri
Talcher
Kan
iha
Ramagun
dam
Korba
Vind
hyachal
Rihan
d
S
ingrau
li
Fara
kka
Dad
ri(Coal)
Kaha
lgaon
Unc
ha
har
Badarpur
Ta
lcher
Therma
l
Tan
da
APC%
6.74
6.75(FY 07-08)
Cumulative Performance
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Cumulative Performance
ml/KWhNTPC Coal Stations =
Specific Oil ml/KWh
( Apr to Dec 2008)
0.41
0.1
0.1
1
0
.14
0.1
9
0.2 0
.26
0.3
4
0.3
5
0.3
80
.46
0.5
80
.66
0.8 0
.91
1.43
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
Korba
Simhadri
Da
dri
(Coa
l)
Ramagunda
m Rihand
Vindhyac
ha
l
Unchahar
Singrauli
Talcher
Thermal
Sipa
t
Kahalgaon
Ba
darpur
Talcher
Kan
iha
Tanda
Fara
kka
Sp
Oil(ml/Kwh)
0.29(FY 07-08)
Cumulative Performance
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WRHQ
Cumulative Performance
Kg/KWhNTPC Coal Stations =
Specific Coal Kg/KWh
( Apr to Dec 2008)
0.6
35
0.6
43
0.6
47
0.6
55
0.6
74
0.6
82
0.6
82
0.7
21
0.7
37
0.7
59
0.7
95
0.8
07
0.8
070.82
1
0.83
6
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
Rama
gunda
m
Dadri(Coal)
R
ihand
Unc
hahar
Sipat
Korba
Vindhyachal
Sin
grauli
Sim
hadri
Tanda
Badarpur
Fa
rakka
Talcher
K
aniha
Talcher
Th
ermal
Kahalgaon
Sp.Coal
(Kg/Kwh)
0.713 0.706(FY 07-08)
Cumulative Performance
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WRHQ
Cumulative Performance
Kcal/KWhNTPC Coal Stations =
Heat Rate Kcal/KWh
( Apr to Dec 2008)
2408
2350
2354
2357
2368
2371
2375
2380
2390
2391
2400
2415
2418
2736
2758
2874
0
5001000
1500
2000
2500
3000
3500
Rihan
d
Simha
dri
Sipa
t
Ta
lcher
Kan
iha
Ramagun
dam
Korba
Vindhyac
ha
l
Unc
ha
har
Da
dri
(Coa
l)
Singrau
li
Ka
ha
lgaon
Fara
kka
Tan
da
Ba
darpur
Ta
lcher
Therma
lHea
tRate(Kca
l/Kw
h)
2412(FY 07-08)
Cumulative Performance
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WRHQ
Cumulative Performance
MusNTPC Coal Stations =
Grid Loss ( outage + PL) MUs
( Apr to Dec 2008)
0 0 0 0.5
0.7 2
.1 11.6
14 1
4.6 18.9 26
.2
26.2
28
.1
4
0.6
147
.9
0
20
40
60
80
100
120
140
160
Korba
Sipa
t
S
imha
dri
Vind
hyac
ha
l
Ram
agun
da
mTalcher
Therma
l
Tanda
S
ingrau
li
Ta
lcher
Kaniha
Rihan
d
Unchahar
Fara
kka
Kahalgaon
Dad
ri(Coa
l)
B
adarpur
LossG
rid
(MUs)
331.5919.4
(FY 07-08)
Cumulative Performance
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Cumulative Performance
MusNTPC Coal Stations =
Coal Loss MUs
( Apr to Dec 2008)
3922.5
0 0 0 0 0 0 0 0.2
10.3 4
2.5 140
.9
215
.1 598.9
1130.4
1784.1
0200
400
600800
1000
1200
14001600
1800
2000
Unchahar
Tan
da
Ba
darpur
Korba
Sipat
Simhadri
Ta
lcher
Therma
l
Dadri(Coal)
Singrau
li
Ramagun
dam
Rihan
d
Vindhyac
ha
l
Kahalgaon
Farakka
Ta
lcher
Kan
iha
CoalLoss(MUs)
552.7(FY 07-08)
( A D )
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Cumulative Performance
NTPC Coal Stations =
No. of Outages
( Apr to Dec 2008)
3
12 1
7 22 23
31 3
3 34 3
5 36 3
7 43 4
4
55
67
0
10
20
30
40
50
60
70
80
Sim
ha
dri
Sipa
t
Da
dri(Coa
l)
R
ihan
d
Korba
T
alcher
K
an
iha
Kaha
lgaon
Badarpur
Ta
lcher
Th
erma
l
Sin
grau
li
Ramagun
da
m Unc
ha
har
Fara
kka
Tan
da
Vindhyac
ha
l
Ou
tage
s
(Nos
)
492Nos.
452(FY 07-08)
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Cumulative Performance ( Apr to Dec 2008)
1.5
0 3.8
3
4.25
5
.14
5
.17
5.2
9
5.5
0
5.8
36.7
0
6.8
0 8.2
5
8.6
0
8.8
0
13.7
5
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
Sim
ha
dri
Korba
Da
dri(Coa
l)
Sin
grau
li
Ta
lcher
K
an
iha
Ramagu
ndam
R
ihan
d
Ta
lcher
Th
erma
l
Vindhy
ac
ha
l
Bad
arpur
Kaha
lgaon
Unc
ha
har
Fa
rakka
Tan
da
Sipa
tOu
tagespe
run
it
(Nos
)
NTPC Coal Stations =
No. of Outages per Unit
Nos.6.566.03
(FY 07-08)
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Cumulative Performance
DC,SG,AG %
( Apr to Dec 2008)
100.2
99.3
97.3
96.1
95
94.2
92.7
92
91.9
90.5
89.5
84.5
82
79.4
73.2
89.99
8.3
99.3
97.3
95.7
95
94.1
89.6
92
91
90.5
89.3
83.9
82
79.1
72.9
89.51
00
100
98
96
96
95
91
92
92
91
90
84
83
80
74
90
0
20
40
60
80
100
120
Dadri(Coa
l)
Sipa
t
Simhadri
Rihand
Korba
Ramagundam
Badarpu
r
Vindhyacha
l
Unchaha
r
Talcher
Therma
l
Singrauli
Tanda
Talche
r
Kaniha
Kahalgaon
Farakk
a
NTPC(Coal)
%
DC % SG % AG %
April-November 2008
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Best Power Stations in the country
April November 2008
101.7
101.6
1
00.0
99
.5
97.6
96.0
95.5
94.9
93.8
94.1
93.0
92.2
92.1
91.6
91.5
91.2
90.4
89.8
89.7
89.0
88.4
88.0
87.9
87.1
86.9
75
80
85
90
95
100
105
SOUTH
ERNREP.
BUDG
E-BUDGE
DAHANU
TORR.
POWER
DADRICoal
SIPAT
TITAGARH
SIMHADRI
G
HTP(Leh
RIHAND
KORBA
KOTA
TROMBAY
RAMA
GUNDAM
Dr.N
.TataRao
NORTH
K'Kheda-II
UNCHAHAR
VINDH
AYACHAL
TAL
CHERTh.
RAYALASEEMA
S
INGRAULI
ROPAR
METTUR
B
ADARPUR
PLF(%)
ALL INDIA 74.9
PRIVATE SECTOR 93.4
CENTRAL SECTOR 80.5
SEB'S 69.1
NTPC(COAL) 87.8
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NTPC BHEL JV (NBPPPL)
JV Company has agreed to increasethe share capital from 5 Crores to 750Crores. BHEL has identified to transfer
its 750 MW turnkey project of ONGC toJV Company. NTPC has identifiedexpansion project of Shaktinagar or
Vindhyachal to be transferred to JVCompany
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News from Business Environment
GOI appoints a high level committeefor preparing National RenewableEnergy Law mandating purchase of
renewable energy, tradablerenewable energy certificates andpenalties thereof. Already 12 SERCs
have fixed up a purchase obligation of10% of renewable energy
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News from Business Environment
India entered into agreement withNepal to set up a trading entity with30% indian equity. Four corridors
Butwal
Gorakhpur
Duhabi Purnea
DhalkebarMuzaffarpur
Anarmani
Siliguri
are identified, so that power can beimported from 2013
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News from Business Environment
Volatility in the liquid fuel marketresulted in plummeting of Naphthaprice from its peak of Rs. 78,096 / MT
on 16.07.08 (Energy charge Rs. 14.78)to Rs. 23,140 / MT on 09.12.08 (Energycharge Rs. 4.38)
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Brief Outage Details
December 2008Coal Stations
OUTAGES (No.) TRIPS (No.)
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STATION
2002
2003
2003
2004
2004
2005
2005
2006
2006
2007
2007
2008
2007
2008
2008
2009
2002
2003
2003
2004
2004
2005
2005
2006
2006
2007
2007
2008
2007
2008
2008
2009
APR
MA
R
APR
MA
R
APR
MA
R
APR
MA
R
APR
MA
R
APR
MA
R
APR
DEC
APR
DEC
APR
MA
R
APR
MA
R
APR
MA
R
APR
MA
R
APR
MA
R
APR
MA
R
APR
DEC
APR
DEC
SINGRAULI 41 47 45 42 68 44 35 36 15 20 12 12 30 14 13 12
RIHAND 14 12 10 24 32 19 19 22 4 7 3 14 12 10 10 8
UNCHAHAR 53 50 44 26 35 43 28 43 37 30 30 14 20 24 14 23
TANDA 124 98 94 67 48 50 39 55 56 48 68 30 27 29 23 37
DADRI
(COAL)38 28 24 32 13 18 10 18 19 17 16 21 4 13 7 5
BADARPUR 80 40 53 43 54 44 34 34 42 20 22 13 24 18 13 14KORBA 40 34 26 25 27 40 30 23 25 18 7 11 9 10 7 5
VINDHYACHA
L67 53 45 46 46 70 53 67 38 26 20 18 17 25 19 34
SIPAT 12 12
RAMAGUNDA
M44 37 28 51 40 43 35 38 11 7 10 28 9 17 15 14
SIMHADRI 20 37 16 19 14 16 13 3 12 23 8 9 6 8 7
FARAKKA 79 73 85 70 69 59 42 44 46 34 44 30 21 28 18 20
KAHALGAON 41 41 31 35 32 20 17 33 12 16 18 9 13 5 4 15
TALCHER (K) 30 58 53 60 55 55 43 31 9 35 27 31 34 27 22 14
TALCHER (T) 79 76 81 65 60 63 54 35 41 49 37 27 18 28 26 12
TOTAL 750 684 635 605 593 584 452 494 367 350 322 267 244 256 198 225
Station/Unit/ Badarpur
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Station/Unit/
Equipment.
Badarpur
Unit-3
Date 14-Dec-08
Brief
Description
Tripped on GT Buccholtz protection. In Buccholtzrelay, no gas was observed, instead vacuum wasfound developed in the transformer tank andBuccholtz pipeline, though conservator oil level was
normal. The vacuum was broken. The reserve oilpump was also put in service.It was observed that due to inadequate flow of oilfrom conservator tank to transformer oil tank, createdoil starvation at Buccholtz relay causing its operation .The following checks were also done.a) The operation of valve between conservator tankand Buccholtz relay was checkedb) The valve outside air cell of conservator to breatherline was checked.c) The pipeline from conservator to breather was airblown to check /clear any blockage.DGA result from R&D was found satisfactory.
Station/Unit/ Talcher Kaniha
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Station/Unit/
Equipment.
Talcher Kaniha
Unit-3
Date 16-Dec-08
Brief
Description
HP and IP control valves closed leading to drop inload from 350 MW to 24 MW. This led to suddendecrease in steam pressure before HPT blading,resulting in LPBP tripping to manual. Load controllerchanged over to speed controller and load came
down to 0 MW with closure of HPCV / IPCV. SinceLPBP got changed over to manual and was in closedcondition, boiler tripped on Reheater protection.Though control fluid and trip oil pressure were steady,HP and IP secondary oil pressures observed to havedropped from 4.06 and 5.62 kg/cm2 to 1.92 and 0.74
kg/cm2. The EHC command was 54.9 % and whencontrol valves started closing, the commandincreased to 59.26%. Since load had dropped from350 MW to 24 MW, load controller changed over tospeed controller and EHC command reduced to19.5%. Further checking of EHC position feedback
revealed that even though EHC command was 59.26
Station/Unit/ Talcher Kaniha
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Station/Unit/
Equipment.
Talcher Kaniha
Unit-3
Date 16-Dec-08
Brief
Description
Electro Hydraulic Converter, the Plunger coil, the EHCpanel cards and the output of the Collins Transformerwere checked. No abnormality was observed exceptfault in one DO card used for indications in verticalpanel and plunger coil supply, the same was
replaced. The turbine was rolled and synchronized.Turbine was kept in hydraulic mode and the EHC waschecked. No abnormality was found in the hydrauliccircuit.Since no problem was observed in the operation ofEHC during checking and during Turbine run up,
reason could be established for dip in secondary oilpressures which had resulted in closing of all the HPand IP control valves.Since during checking, balance voltage got
disturbed, EHTC coil was replaced and balancevoltage was adjusted. EHC characteristic was also
checked. Freeness of EHC converter was checked.
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Major Events
duringDecember 2008
Station/Unit/ Farakka
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Station/Unit/
Equipment.
Farakka
Unit 3
Date 12-Dec-08
Brief Description Disturbance was observed in hotwell level,deaerator level and CST level. During this
disturbance system debris got entrapped in
CEP suction strainers. Subsequently CEPs
tripped one by one. Later inspection of the
pumps revealed that the shafts of both theCEPs got damaged.
Root Cause Being investigated
Remarks Committee formed
Station/Unit/ Simhadri
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Station/Unit/
Equipment.
Simhadri
Unit 2 ID Fan 2B
Date 31-Dec-08
Brief Description One of the coils in ID fan 2B motor failed.Spare coupling not available. Work got
extended due to difficulty in removing
motor end coupling due to non-availability
of jigs and fixtures
Root Cause
Remarks Revived on 04.01.2009
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Communications
from COS duringDecember 2008
Reference OS/ST/Steam Path Audit/1140
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Reference
No.OS/ST/Steam Path Audit/1140
Date
BriefDescription
Steam Path Audit cum Training atVindhyachal during O/H of Unit 2
Action Letter sent to WR-stations for
deputation of engineers toVindhyachal for training to
develop in house capability
Remarks Training cum Audit from 09.09.08
by M/s Encotech supplier ofsoftware