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Testimonials
Successful completion of erection of 220 KV D/C Asansol S/S to LILO of Santaldih Durgapur at Raghunathpur
S. K. Roy
Superentending Engineer, BTCD,,WBSETCL
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Successfully completed the Design, Erection, Testing & Commissioning of 220 KV D/C over-head line of total
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Sr. Divisional Engineer (E),Damodor Valley Corporation
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Power Transmission Line Tower
This category of towers are being used in Electrification projects for transmitting the power from power generating units to substations located in remote areas. A type of a power transmission tower depends on various factors such as voltage (33kv to 800kv), configuration (vertical or horizontal), line deviation angle (Suspension, Tension & Terminal, Tee off tower).
The design of Power Transmission line tower depends on, type of conductor and Earth-wire, wind zone, deviation angle and material specification. These towers are galvanized to protect the steel from corrosion. The galvanizing coating thickness depends on the weather conditions at the location of tower.
Radio and Telecommunication Tower
This category of towers are specially being used for wireless communication with radio, radar, Microwaves, etc. Antenna or radar or other wireless transmitting devices are fixed on appropriate locations on the tower.
Substation Structures
These structures includes Gantries and Equipment Support Structures. Gantry structures are mainly used for guiding the power conductor from last tower near substation to the electrical equipments in a substation. This structure consist of a number of columns and Girder beams, which depend on number of circuits of the line. Gantries are also used for line crossing.
Power conductors of one line can be underpassed with the help of required number of gantries. Equipment Support Structures are columns, supporting electric equipments in a substation. Depending upon the site and client's requirement, the Gantry and Equipment support structures can be mounted on substation building also.
 
Operation Flow Chart