COMPARATIVE STUDY OF ANALYSIS & DESIGN OF DOUBLE STOREY 400/220KV GIS CUM GANTRY (TOWER) BUILDING AND CONVENTIONAL GIS BUILDING

Nilesh Chandra Lal
M. Tech Structural Engineering, R.K.D.F.Institute of Science & Technology , IN

Pankaj Singh
M. Tech Structural Engineering, R.K.D.F.Institute of Science & Technology , IN

Keywords: GIS Substations, Transmission Lines, Pre-Engineered Buildings, Staad Pro, utilization ratio, tapered section.

Abstract

Construction of High Voltage substations in the heart of city is becoming more and more difficult. The difficulty in getting land, complex entrance and exit of high voltage overhead lines, increasing protest of neighbours, high priority of projects and short schedule to energize these substations are some of the common problems for those working in design and execution departments of power utilities.

The land available for 400/220 KV sub-station projects in urban cities is very small and irregular. The complete project cycle of the GIS project from planning to commissioning stage is very time consuming and complex. Thus, the planned time to build GIS (Gas Insulated Substations) equipment is too long and could not satisfy the project’s schedule. Under such conditions, to save space, time & cost, a Double Storey GIS building with 400 KV Gantry on the top of the building in 400/220 KV GIS substation can be evolved. This is a new way to solve problem of space in urban areas although there may be already other proven solutions. With this type of arrangement, we are expected to solve the land associated problem for the GIS substations.

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