The document discusses Supreme & Co.'s manufacturing capabilities and products related to transmission line infrastructure. It summarizes their monopole design and manufacturing process, provides comparisons to lattice structures, and outlines specifications, testing, and approvals. Case studies demonstrate the use of emergency restoration towers for transmission line projects in India.

2. Our Products & Services
Manufacturing
Solutions
&
Services
Projects
Upto 1200kV
Insulator Hardware
Assembly
Upto 1200kV
Insulator Clamps &
Connectors
2

3. 3
HIGH PERFORMANCE CONDUCTOR

4. MECHANICAL CREEP AT HIGH TEMPERATURE TEST ON
ALUMINIUM OXIDE/POLYMER MATRIX CORE CONDUCTOR
4

5. TESTING ARRANGEMENT
5

6. TESTING ARRANGEMENT
6

7. TESTING ARRANGEMENT
7

8. Applied Tension 30 kN APPLIED TENSION 40kN
APPLIED TENSION 50kN APPLIED TENSION 60kN
8

9. APPLIED CURRENT
800 AMPS
APPLIED CURRENT
900 AMPS
APPLIED CURRENT
1000 AMPS
9

10. START TIME 9:15AM
DATE 02.01.14
END TIME 10:00AM
DATE 04.01.14
CONDUCTOR TEMP. MEASUREMENT POINT- CH-4
10

11. DEAD END JOINT –A TEMP. MEASUREMENT POINT CH-1,CH-2
& CH-3
START TIME
9:15AM
DATE 02.01.14
END TIME
10:00AM
DATE 04.01.14
11

12. DEAD END JOINT –B TEMP. MEASUREMENT POINT
CH-5, CH-7 & CH-8
START TIME
9:15AM
DATE 02.01.14
END TIME
10:00AM
DATE 04.01.14
12

13. 85.2
108.5 117
127.7
135.5
142.7
149.2
158.1
158.6 158.9 159.2
26.3 28.8 30.0 31.4 32.3 33.2
34.0 34.9 35.6 36.4
36.9
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
0 5 10 15 20 25 30 35 40 45 50 55
TEMP°C
TIME IN HOURS
Aluminium Oxide/Polymer
Matrix core HPC
RESULT
13

14. PROPOSED SPLICE METHOD
14

15. 15
VALIDATION OF HELICALLY FORMED TERMINATION
FOR AAAC AND AL59 CONDUCTOR

16. TEST ON AAAC CONDUCTOR WITH HELICALLY
FORMED DEAD END GRIP
16

17. TEST ON AAAC CONDUCTOR WITH
HELICALLY FORMED DEAD END GRIP
AAAC 525 Sq mm Conductor
UTS 95% = 139kN withstood
17

18. INNOVATIVE SOLUTION FOR
LINE UPRATING
18

19. 19
EMERGENCY RESTORATION TOWER
 If electrical power supply is interrupted due to
damage or destruction of transmission towers,
there will be huge financial loss to the
transmission utilities.
 The use of ERS permits restoration of power
transmission in a matter of few hours by creating
a by – pass until the original structure is restored.
 When the original towers are restored and
reconnected to the grid, the ERS is dismantled
and stored for future use.

20. 20

21. CASE STUDY 1
GHAZIABAD: 132 kV LINE BETWEEN
VAISHALI AND SAHIBABAD
21

22. • Ghaziabad Development Authority
requested UPPTCL to re-route their
132 kV Transmission Line from Vaishali
to Sahibabad which was a hindrance
for completing their flyover project.
• UPPTCL decided to shift the line and
construct a multi circuit tower in place
of existing tower and also uprate the
line by changing the conductor from
ACSR to ACCC.
CASE STATEMENT
22

23. • Initial and detailed survey were made
before and after the award of contract.
• After detailed survey, the technical
team concluded that 3 ERS tower of
30M high will be required in view of the
multi storey mansions and residential
apartments.
• Erection works began on 21st April and
was finished by 27th April.
SURVEY
23

24. • After erection, we waited for the shutdown of 33kV
Line that was crossing the section between ERS 1
and Multi circuit as well as a 11kV Line that was
crossing the section between ERS 1 & ERS 2.
• In the meantime, stringing works were carried out
between ERS 2 and ERS 3.
• On 30th April, UPPTCL provided a shutdown of 33
kV Line for 2 hours within which the stringing work
between the Multi Circuit tower and ERS 1 was
done.
CHALLENGES
33 kV Line Crossing24

25. • Later on, 1st May, shutdown on 11kV Line
was provided for 2 hours to complete the
stringing between ERS 1 & ERS 2.
• Stringing between ERS 3 and 132 kV tower
was delayed by 5 days due to non-
availability of shutdown.
• After the line is shifted to ERS, UPPTCL
dismantled the existing 132 kV Towers and
replaced them with Multi Circuit Towers.
CHALLENGES
11 kV Line Crossing25

26.  Even after installing the ERS, we were not able to
string the line as UPPTCL could not provide
shutdown on the 132kV Line.
 This shows how critical that particular line is and
it would have taken years to complete the project
without ERS.
 Both the flyover project and line uprating would
have been on hold.
IMPACT
26

27. • No heavy machinery or earth movers were
introduced for execution of above, other
than for transportation.
• It is worthwhile to mention that, after
shifting the line to ERS, there was a
severe hailstorm but the tower withstood
the same without any damage to it.
• The bypass line is in charged state since
then serving utility customers who didn’t
have to undergo suspension of service.
OUTCOME
27

28. Live line from existing
to ERS tower
Live Line between two
ERS Towers
Tower with cross arm
& insulator28

29. GHAZIABAD: 400 kV ATUR –
INDRA PURAM LINE
CASE STUDY 2
29

30. • A 400 kV Transmission Line between Atur
and Indira Puram, abandoned since March
2017 and was likely to remain idle for at
least three months, due to a line crossing
over 132 kV Single Circuit Transmission
Line between Loni and Mohan Nagar in
Uttar Pradesh.
• The bottom crossarm of 132 kV Tower was
at a height of 53m which didn’t provide the
necessary clearance required for stringing
the 400kV line.
• The situation was that the height of 132kV
tower has to be reduced and it required a
shutdown for 5 to 7 days which was not
possible.
CASE STATEMENT
30

31. • Our engineering team conducted a
survey and made a detailed report.
• This project was a huge challenge as
the particular corridor contains a
Highway crossing, River crossing and a
Flyover Crossing.
• After analyzing the detailed report, three
locations were chosen for ERS erection.
SURVEY
31

32. • Based on the experience from previous
project, new techniques were followed in
order to fasten the erection time.
• Also as the crew was experienced, the entire
erection was done in 3 days whereas the
previous work took 6 days.
• We did a challenging feat of taking the
bypass line across the highway without any
disruption of highway traffic even for a
minute
EXPERIENCE
Flyover Crossing32

33. • On 7th June, UPPTCL provided a shutdown
for 3 hours within which we carried out the
stringing on ERS and destringing of 132 kV
Line.
• Again after installing the tower, there was
heavy rain and stormy wind but no damage
was made to the ERS.
• No heavy machinery or earth movers were
introduced for execution of above, other than
for transportation.
OUTCOME
River Crossing33

34. OUTCOME

35. • This exercise helped in completing a project which would evacuate 580 MW line where
substantial investment was already made on 98% stretch of the line and associated substation
would have remained idle for indefinite period.
• Benefits of this exercise was higher than cost by exponential proportions.

37. INTRODUCTION
 Traditionally overhead transmission lines have
been built on lattice type structures.
 Significant ROW and aesthetics issues have
stalled construction of new transmission line
corridors.
 Solutions with narrow corridors and smaller
footprints became the crying need of the day for
completion of critical transmission corridors.
 Replacement of traditional structures with
monopole kind of structures is a significant step
in this direction.

38.  Less right-of-way
 Small foundations take less land and
hence reduce the foot-print.
 For Example a 132 kV Mono pole
can be erected within a foot print of
2 Mtrs.
 Efficiently erected along Highways
and Railway Lines
ADVANTAGES
38

39. Pole type Structure Lattice Structure
Tower Cost Itself More Less
Maintenance Cost Less More
Installation Cost Less More
Design Risk at Joints Less More
Flexibility More Less
Aesthetics Yes --
Land Occupation (ROW) Very Less High
Logistics Less More
Environment friendly Yes --
COMPARISON WITH LATTICE STRUCTURE
39

40.  Various structure configuration –
monopoles and frames.
 Different voltages and circuits on same
pole.
 Distribution under-built.
 Multiple circuits in different orientation.
40

41.  Consist of tapered steel tubes that fit over each other to form a
stable pole.
 May be guyed or self supported and be fitted with climbing
rungs where necessary.
 Sections should be made from hollow, heavy duty, thick steel
tubes, flanged steel tubes or low-alloy, high-strength steel.
 Shaft section should be a constant-tapered hollow steel section.
 Slip joints should be designed with suitable engineering
practices.
 Should be made from galvanized hollow steel pipes or high
strength steel
CHARACTERISTICS OF MONOPOLE
41

42.  Professional Design Team specializing in Transmission Poles
 Expertise of Designing as per all national and international Standards as
 Standards for Designing : Guide Line ASCE – 48 - 11
OUR DESIGN CAPABILITIES
42

43. MANUFACTURING FACILITY
Sheet Cutting Sheet Bending
Punching Welding Galvanizing43

44.  Material :Hot rolled coil from Q235 to Q460, ASTM 573 GR65, GR50,
SS400, SS490, ST52-3
 Hot dip galvanized Following BS EN ISO 1461 -1999, ASTM A 123 or
any other standard by client required.
 Welding as per IS 813, AWS D 1.1
 Base Plate ASTM A 633 GRE
KEY SPECIFICATION
44

45. Steel Monopole sections are easily joined to each other to erect the tower.
STEEL POLE CONNECTION OPTIONS
Slip Joints Flange Joints
45

46. Erection of Steel Monopoles do not need much of foundation work.
We can erect the monopole by
STEEL POLE FOUNDATION OPTIONS
Concrete
foundation with
anchor bolts
Direct
Embedded
Caisson
Foundation
46

47. Load testing can be arranged by the third parties :-
 CPRI (Central Power Research Institute)
 SERC (Structural Engineering Research Centre)
 Richardson & Cruddas
TESTING & VALIDATION
47

48. Pole Drawings Approved by APTRANSCO
APPROVALS

49. Drawings Approved by ECG, Ghana
APPROVALS
49

50. SUPREME & CO. PVT. LTD.
P-200, BENARAS ROAD, HOWRAH -711108, WEST BENGAL, INDIA
Phone : +91-033-26516701-05
Fax : +91-033-26516706
Email : sales@supreme.in & info@supreme.in
Website : www.supreme.in