1. 1 YITS

2. 2 YITS

3. Introduction
 To develop 1200 kV AC Transmission System and
associated equipment indigenously, a joint initiative is
taken by POWERGRID, CPRI and Equipment
Manufacturers to set up a 1200 kV Testing Station and an
experimental line at BINA in Madhya Pradesh.
3 YITS

4. HOW POWERGRID PLAYS AN IMPORTANT
ROLE
 POWERGRID plays a significant role in socio-
economic development of the country and in
pursuing clear objective of transmitting power across
the country
 In a bid to further boost the transmission capacity of
the country, India has moved towards Ultra High
voltage (UHV) transmission level.
4 YITS

5. Voltage Upgradation
5 YITS

6. WHY WE ARE GOING TO 1200KV
TRANSMISSION
Table I gives he comparison of Power transfer capability
(MW/m) for transmission voltages in India.
Table 1
Description 400kv 800kv 1200kv
ROW(m) 46 64 92
Capacity(MW) 600-700 2500- 6000-
3000 8000
MW/m 15 45 87
Need for UHV voltage level to transmit power over large
distances was always felt.
6 YITS

7. Test Station Details
•Two 1000 MVA 1200/400/33 kV Auto Transformers
•Two 1200kV & 400kV Bays
•One 1200kV line Single Circuit (about 1.1 Km long)
•One 1200kV line Double Circuit Line (about 0.8 Km long)
7 YITS

8. SINGLE CIRCUIT TOWER DOUBLE CIRCUIT TOWER
8 YITS

9. Series Capacitor installation
Series capacitors are installed to reach more efficient use of the transmission
line
The series compensation is an economic method of improving power
transmission capability of the lines
9 YITS

10. 1200 kV National Test Station
 Establishment of 1200kV UHVAC Test Station at
Bina in association with 33 domestic
manufacturers
 For indigenous development of 1200KV technology
 Indigenous development of equipments shall help in
 To conduct development atleast to optimize design of substation
and transmission equipments.
 Indigenous development shall help in reduction of cost and
convenience of O&M
10 YITS

11. 1200kV Transformer successfully
developed, tested and commissioned.
Test Setup for 1200kV Transformer 1200kV Transformer successfully tested
11 YITS

12. 1200kV Test Station
12 YITS

13. 1200kV Test Station
 The initial operational experience of 1200kV Test Station will prove to be
the corner stone of future commercial projects
 India’s first 1200kV UHVAC Transmission Line from Wardha to
Aurangabad is already under construction
13 YITS

14. Bundle Conductor Selection
.
PGCIL carried out these tests in a Corona cage at UHV test lab at CPRI,
Hyderabad. Octagonal Bersimis ACSR (Die 35.1mm) bundle conductor was
chosen. Three types of bundle arrangements. with different sub conductor spacing
of 350 mm. 450 mm and 550 mm were adopted.
14 YITS

15. 1200kV Wardha-Aurangabad Line
 It’s India’s first 1200 kV UHVAC Transmission Line –
400kV Double circuit line upgradable to 1200kV
 Towers and Foundations are designed considering 1200kV
parameters
 Tower designs are suitable for operation of two circuits of
400kV
15 YITS

16. 1200KV Transmission Corridor
16 YITS

17. Challenges in 1200kV Transmission
17 YITS

18. Conclusion:
 According to my view, India has quite an experience
in 11 kV to 420 kV systems. But in 800 kV AC
system, it has only limited exposure. In this context,
the Power Grid was in the forefront of indigenously
developing a 1200 KV UHV electrical transmission
system. The UHV transmission system, would go a
long way in helping to conserve the right of way (as it
would replace three 400 kV transmission lines).
18 YITS

19. 19 YITS

20. 20 YITS