L3-Indian power system.pptssmsmmsjjsdmdmsk

indian power system slides

1. INDIAN POWER
SECTOR

2. Power Sector Structure in India
Transmission Planning Criteria
RLDC’s Management
System Restoration Procedures
INDIAN POWER SECTOR

3. POWER SECTOR
STRUCTURE
IN
INDIA
INDIAN POWER SECTOR

5. Growth of installed capacity
for electricity in India
0
20000
40000
60000
80000
100000
120000
1 9
9 0
- 9
1
1 9
9 1
- 9
2
1 9
9 2
- 9
3
1 9
9 3
- 9
4
1 9
9 4
- 9
5
1 9
9 5
- 9
6
1 9
9 6
- 9
7
1 9
9 7
- 9 8
1 9
9 8
- 9
9
1 9
9 9
- 2
0
0 0
2 0
0 0
- 2
0 0
1
in MW

6. Fuel wise break-up of installed
capacity in power sector
2.60%1.40% 25%
71%
Hydro
Thermal
Nuclear
Wind
Total installed capacity is 105,800 MW

7. Sector wise consumption of
electricity in India
22%
29%
5%
35%
6%
3%
Industry
Domestic
Railways
Agriculture
Commercial
Others

9. Power development - projections
975
719
529507
Mar.'01 (act.)Mar.'02 (est.) Mar.'07 (est.)Mar.'12 (est.)
157107
115705
8513278037
Peak
requirement
in MW
Energy
requirement
in BU

10. INDIA—GENERATING CAPACITYADDITION
Capacity addition planned 2002-07 – 41,110 MWCapacity addition planned 2002-07 – 41,110 MW

11. ROURKELA
RAIPUR
HIRMA
TALCHER
JAIPUR
NER
ER
WR
NR
SR
B'SHARIF
ALLAHABAD
SIPAT
GAZUWAKA
JEYPORE
CHANDRAPUR
SINGRAULI
VINDHYA-
1000MW
500MW
LUCKNOW
CHICKEN NECK
KRISHNA
TEESTA
MISA
KATHAL-
GURI
LEGEND
765 KV LINES
400 KV LINES
HVDC B/B
HVDC BIPOLE
EXISTING/ X PLAN
ZERDA
HISSAR
BONGAIGAON
DEVELOPMENT OF NATIONAL GRID
KOLHAPUR
NARENDRA
KAIGA
MANGALORE
PONDA
IX PLAN
MARIANI
N.K.
KAHALGAON
RANGANADI
SEONI
CHEGAON
BHANDARA
DEHGAM
KARAD
LONIKAND
VAPI
GANDHAR/
TALA
BANGLA
BALLABGARH
A'PUR
(DELHI RING)
BANGALORE
KOZHIKODE
COCHIN
KAYAMKULAM
TRIVANDRUM
PUGALUR
KAYATHAR
KARAIKUDI
CUDDALORE
SOUTH CHENNAI
KRISHNAPATNAM
CHITTOOR
VIJAYAWADA
SINGARPET
PIPAVAV
LIMBDI
KISHENPUR
DULHASTI
WAGOORA
MOGA
URI
BHUTAN
RAMAGUNDAM
RAVI
JULLANDHAR
DESH
NAGAR
VARANASI
/UNNAO
M'BAD
PURNEA
KORBA
NAGDA
SILIGURI/BIRPARA
TEHRI
MEERUT
BHIWADI
BINA SATNA
MALANPURSHIROHI
KAWAS
PHASE - II
(By 2007)
SIRSI
CHAL
JETPUR
AMRELI
BOISAR
PADGHE
DHABOL
KOYNA
/BARH
G'PUR
HOSUR

12. 4850
23000
30000
0
5000
10000
15000
20000
25000
30000
35000
Plan
C
u
m
u
l
a
t
i
v
e
C
a
p
a
c
i
t
y
(
M
W
)
By 2002 By 2006-07 By 2011- 12
Growth of Cumulative capacity of Inter-regional linksGrowth of Cumulative capacity of Inter-regional links

13. HIERARCHICAL SETUP OF CONTROL CENTRES
RTU RTU RTU
SUB LDC SUB LDC SUB LDC
SLDC SLDC SLDC
ERLDC WRLDC NRLDC SRLDC NERLDC
5 Nos.
NLDC
32 Nos.
141 Nos.
1160 Nos.

14. States were generally in the form of:
1.Vertically Integrated Utilities having
-Own Generation
-Own Transmission
-Own Distribution
2.Having fixed shares in the Central
Sector
3.Counting on Load-Generation
Balance within the State
Indian Power Sector (Pre-Reforms)

15. Thrust areas and progress
1. State regulatory commissions
(SERCs) constituted
2. SERCs have issued tariff orders
3. States have unbundled their SEBs
Indian Power Sector Reforms

16. Thrust areas and progress (contd/-)
4. States are in the process of privatising
distribution
5. States have signed MoUs with the
Ministry of Power
6. All around emphasis to provide 100%
metering
Indian Power Sector Reforms

17. Indian Power Sector-Distribution
• Distribution originally with the State
Electricity Boards (SEBs) with licenses given out
for some areas to private.
• After unbundling of SEBs, separate
(DISCOMS) formed at state level. Privatisation of
DISCOMS already done in two states viz. Delhi
and Orissa.
• Emphasis on metering, loss reduction at this
level with the Central Govt. acting as a
catalyst through assistance under APDRP.

18. TRANSMISSION PLANNING
CRITERIA
INDIAN POWER SECTOR

19.  ISTS shall be capable of withstanding and be
secured against the following outages without
necessitating load shedding or rescheduling of
generation during steady state operation:
•Outage of a 132 kV D/C line OR
•Outage of a 220 kV D/C line OR
•Outage of a 400 kV S/C line OR
•Outage of a single ICT
PLANNING CODE FOR ISTS
Planning Criteria :
Continued …..

20. PLANNING CODE FOR ISTS
Planning Criteria :
Outage of one pole of HVDC Bipole OR
Outage of 765 kV S/C line
 The aforesaid contingencies would be superimposed
over a planned outage of another 220 kV D/C line or
400 kV S/C line in another corridor and not emanating
from the same sub-station.
 ISTS shall be capable of withstanding the loss of
most severe single system infeed without loss of
stability.

21. PLANNING CODE FOR ISTS
Planning Criteria :
ANY ONE OF THE AFORESAID EVENTS SHALL NOT
CAUSE
o loss of supply
o abnormal frequency on sustained basis
o unacceptable high or low voltage
o system instability
o unacceptable overloading of ISTS elements

22. OPERATIONAL CODE FOR REGIONAL GRIDS
SYSTEM SECURITY ASPECTS :-
Grid voltage should always be maintained within the
operating range
NOMINAL(kV) MAX. (kV) MIN. (kV)
400 420 360
220 245 200
132 145 120

23. PROBABLE REASONS FOR GRIDCONTINGENCIES
 EQUIPMENT FAILURE
 WEAK TRANSMISSION SYSTEM
 OPERATIONAL ERROR
 GRID INDISCIPLINE
 MULTIPLE OUTAGES DUE TO WEATHER
 CASCADED TRIPPING DUE TO OVERLOAD

24. ISSUES OF IMPORTANCE
•Provide adequate level of redundancy in
transmission network
•Generation to be augmented with load increase
•Load regulatory measures by utilities in the
event of shortages
•Adequate reactive compensation to be
provided at load end