World's second tallest power transmission towers… The world's second tallest power transmission towers, built by Haldia Energy Limited (HEL), has come up in West Bengal.

The term "pylon" comes from the basic shape of the structure, an obelisk-like structure which tapers toward the top, and the name is mostly used in the United Kingdom and parts of Europe in everyday colloquial speech. The total height of both is 2,063 feet (629 m). Special issue on major and innovative projects in China The main supporting unit of overhead transmission line is transmission tower. The world's second tallest power transmission towers, built by Haldia Energy Limited (HEL), has come up in West Bengal.The 236-metre-long twin towers, located at HEL's 600-MW capacity plant at Haldia and Raichak across the river Hooghly, are the tallest in the country.Covering a span of 1.5 km, the twin towers weigh 1,800 tonnes.The world's highest transmission tower (370 metres) is located at Mount Damaoshan in China.

One level pylons only have one cross arm carrying 3 cables on each side.

Conservatively adopting the design approaches for pure steel CHS joints would not only have led to an uneconomical design but may also have caused errors in the overall structural analysis.

Sometimes, especially with 110 kV circuits, a parallel circuit carries traction lines for Electrode line towers are used in some HVDC schemes to carry the power line from the converter station to the grounding electrode.

Towers may be self-supporting and capable of resisting all forces due to conductor loads, unbalanced conductors, wind and ice in any direction.

However, some challenging technical problems needed to be solved during design, manufacture and construction.This paper introduces the key techniques adopted and the innovative structures proposed for the towers. The use of physical laws for the design made a reduction of the magnetic field possible. In addition to that all towers have to sustain all kinds of natural calamities.

Towers will have a level of physical security to prevent members of the public or climbing animals from ascending them. For crossing wide rivers and straits with flat coastlines, very tall towers must be built due to the necessity of a large height clearance for navigation.

Because of possible problems with corrosion by flue gases, such constructions are very rare. "The power evacuation network is the most sophisticated one. AC transmission towers may be converted to full or mixed HVDC use, to increase power transmission levels at a lower cost than building a new transmission line.AC circuits of different frequency and phase-count, or AC and DC circuits, may be installed on the same tower.

The design wind speed was 41 m/s based on a report by the Meteorological Bureau of Zhejiang Province.

HALDIA (WB): The world's second tallest power transmission towers, built by Haldia Energy Limited (HEL), has come up in West Bengal.