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We are absolutely geared up for EHV infrastructure

Venugopal Pillai ,  Friday, May 25, 2012, 16:49 Hrs  [IST]

S.C.Jha— S.C. Jha, Vice President & Head, SBU - Transmission & Distribution, Tata Projects Ltd

Tata Projects Ltd, part of the Tata Group, is amongst India's fastest growing construction company. TPL has a diverse presence spanning power, metallurgy, water, etc. In this exclusive interaction, S.C. Jha elaborates on TPL's competency in the field of power transmission & distribution. Whilst giving keen insights into the 1,200kV power transmission technology that India is heralding, Jha asserts that the ongoing XII Plan period will unleash tremendous business opportunities in power transmission. An interview by Venugopal Pillai.

Indian power transmission is seeing increased involvement of private sector under the PPP mode. What is your view?
Yes, Public Private Partnership (PPP) is the route that will be increasingly used for setting up transmission projects in the country. Government of India also issued a notification on this in March 2011 and we expect that the PPP play will go up in the coming years. Many states like Rajasthan and others will also follow the PPP mode and this will increase year on year.

How does the current order book of TPL's power T&D business look?
We have a healthy order book and have one of the highest shares in the T&D segment. In addition to the Indian market we are increasing our focus on international markets and are expect to get good order flows from here as well.

How does the order inflow in FY12 compare with that in FY11?
Order flow in 2011-12 has shown a good growth of over 40 per cent as compared to the previous year.

Tata Projects has been dealing with several state power transmission utilities. Do you see any change in their procurement policies over the years?
No, we have not seen any change in the procurement policies of the state power transmission utilities. However, as mentioned above, many state power utilities are trying to follow the PPP mode.

Tell us more about the Nagpur transmission tower manufacturing facility of Tata Projects. Are you planning any capacity expansion in the near future?
TPL set up a Tower Manufacturing Unit (TMU) near Nagpur to meet the growing demand for transmission line towers. Our TMU is approved by the Power Grid Corporation of India Ltd. We have increased the manufacturing capacity in 2011-12 by 50 per cent from 24,000 tpa to 36,000 tpa.

Tata ProjectsHow is Tata Projects gearing to meet the demand of EHV infrastructure like 765kV, 800kV etc?
TPL is already qualified to participate and execute 800kV towers in India. In fact, we have been executing several such transmission line projects in India. Most of our projects are in the 765kV and 800kV sector. Therefore, we are absolutely geared up to meet this growing demand.

Please discuss the technical efficiency and also the potential challenges of the new 1,200kV UHVAC technology that India is heralding.
R&D efforts are on to augment the capacity of transmission lines up to 1,200kV. The government has taken up a task to build a test centre at Bina in Madhya Pradesh and set up a pilot project to transmit 1,200kV power. Ability to evacuate more power in a single line is of immense benefit. We think that this is a good way to progress.

Currently, a test line of 1,200kV is being installed in Bina and several tests are being conducted on the line. The country may witness the commencement of 1,200kV transmission lines being installed in some time from now.

The 1200kV line carries 6,000-8,000 mw power, which is very high voltage. In case of any failure in transmission line equipment, it disturbs the synchronization at grid and as a result there will be a complete blackout in the region. The performance of corona ring has to be highly efficient to avoid electrical failure in the system. Test samples of such hardware from reputed manufacturing companies in India are being tested currently.

India will overcome the challenges of 1,200kV UHAVC technology very soon.

What comes to your mind as the most challenging power transmission project executed by Tata Projects in recent times?
Tata Projects has been executing numerous challenging power transmission projects and one of the recent one has been at Uri in Jammu & Kashmir. The Uri-II line was executed at a very high altitude and difficult terrain. We deployed very good and dedicated workforce to head-load all transmission line equipment to the tower locations. The line was constructed during the winter season at sub-zero temperature.

What is your view on India's testing facilities in the field of power transmission?
India has very good testing facilities both at the Centre and at the state level for testing all transmission line equipment. Further, advanced test facilities are also available on sites and regional grids to locate the exact locations of failures, if any.

The power sector is believed to be facing severe shortage of manpower. What is your view, and how do you work around the situation at Tata Projects?
Manpower is a backbone for any organization to develop. Manpower, both skilled and semi-skilled, is required in sufficient number for majority activities of transmission line (TL) projects. The TL project activities are such as casting foundation, tower erection and stringing of lines. Usually, manpower for casting foundations is available, but the number of stringing gangs required for the projects is not many and this is a great challenge for the T&D business.

Manpower required for the tower erection is passing through a deep crisis. Tower erection gangs are available only in West Bengal, Jharkhand and in some pockets of South India. The number of such gangs is not growing because the generation next is more interested to work for other infrastructure projects such as roads and bridges than working at heights for tower erection.

We are motivating all tower erection gangs by providing them with good working environment, safety equipment and statuary provisions such as PF, which is over and above their normal compensation.

The XII Plan investment outlay in power T&D is expected to be substantially higher than any preceding Plan period has seen. How do you see emerging business opportunities in the coming five years?
The country's current regional transmission capacity stands at 25,900 mw, out of which 11,800 mw has been added during the XI Plan period. In the XII Plan period, Power Grid Corporation of India Ltd has already earmarked an investment of Rs.1 trillion, nearly double the investment outlay of the XI Plan. The XII Plan projects a total of 1,20,000 ckm (circuit km) of transmission lines and 2,95,000 MVA transformation capacity to be added.

The government has clearly articulated in its plan document that it would supply power to every habitat of the nation, which means that there will be more business opportunities for us in the XII Plan period.
 
                 
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