Invitation for TL on 'Latest Developments in Gas Insulated Substations (GIS) for Power Transmission Applications' by Dr. Mohana Rao (BHEL R&D), March 9, 2012.
Mithun M. Bhaskar
Dear IEEE Members:
The Institute of Electrical & Electronics Engineers (IEEE), Hyd. Section
PES/IAS/PELS Joint Chapter
Invites you for
Technical Lecture
Latest Developments in Gas Insulated Substations (GIS) for Power Transmission Applications
by
Dr. M Mohana Rao
Corporate Research & Development,
Bharat Heavy Electricals Limited
Date : Friday, March 9, 2012
Venue : College of Engineering, Jawaharlal Nehru Technological University,
Kukatpally, Hyderabad.
Time : 3 PM to 6 PM
Abstract of the Talk:
Gas Insulated Substations (GIS) have found a broad range of applications in power systems because of their high reliability, easy maintenance, limited space requirement etc. GIS is based on the principle of complete enclosure of all energized or live parts in a grounded metallic encapsulation, which shields them from the external environment. Thus GIS has a grounded outer sheath enclosing the high voltage inner conductor unlike equipment in a conventional Air Insulated Substation (AIS) whose closest ground is the earth surface. The gas-insulated substation comprising of metal-clad gas insulated modules of circuit breakers, disconnector switches, earthing switches, current transformers, potential transformers, bus duct and gas-to-air / gas-to-cable terminations. All these components are in modular form and are assembled to the required configuration. In all these components SF6 gas is utilized as main insulation at a pressure of 100 to 650 kPa. The insulating gas also acts as an efficient heat-conducting medium and helps in maintaining uniform temperature distribution, thereby reducing the formation of hot spots on the critically loaded components. While designing the GIS, space associated costs are reduced, resulting in a substantial reduction in overall costs, as high voltage GIS occupies less than 10 % of the space required by a conventional substation. The presentation will cover the recent trends in gas insulated substation configurations and its applications for high voltage and extra high voltage power transmission systems.
Profile of the Speaker:
Dr. M. Mohana Rao received his Ph.D. degree in 2006 in High Voltage Engineering, Indian Institute of Science, Bangalore. Dr. Mohana Rao is associated with Bharat Heavy Electricals Limited R&D, since 1996 and presently serves as Manager of Gas Insulated Power equipment and switchgear development Group. His areas of interest are design/ development of Gas Insulated Substations, Gas Insulated Lines (GIL), Gas insulated Surge arresters and bushings, EMI/EMC studies in substations, VFTO/VFTC related issues in GIS, detection of power system faults using signal processing techniques and CFD based analysis of gas Circuit Breakers. Presently, he is involved in the development of indigenous EHV class gas insulated substations and commissioning of 132/33 kV Gas insulated substation for APTRANSCo. Dr. Mohana Rao has 23 patents, around 100 publications and contributed a chapter in text book titled “Handbook of switchgears” published by Tata McGraw-Hill.
Dr. Rao has been bestowed with prestigious Young Engineer of the Year award for the year 2004 by Institution of Engineers in association with Govt. of Andhra Pradesh, Young Manager of the year Award for the year 2007 by Hyderabad Management Association (HMA) affiliated to All India Management Association (AIMA) and Young Engineer award 2007 by Indian National Academy of Engineering (INAE), New Delhi for his contributions in the field of Engineering. His technical papers on GIS have been adjudged as best papers in the field of electrical engineering for the year 2006 and 2009 by Institution of Engineers.
Registrations: Event registration is Free for Members, Non-Members Fee is Rs.100/- Registration is mandatory at https://meetings.vtools.ieee.org/meeting_view/list_meeting/11177