T-Line Electrical Aspects


Transmission Line Design Electrical Aspects

The course covers several electrical design aspects of transmission line to ensure acceptable reliability, safety and code compliance for transmission facilities. Topics: Introduction to electrical aspects, rules and requirements, design criteria & voltage levels, conductor selection & ratings, design clearances with reference to National Electrical Safety Code (NESC), insulation design, lightning and insulators contamination, EMF fields, corona, induction coordination, grounding requirements for transmission lines, grounding measurement methods and upgrading of transmission lines.

In week one, Robert Rusch, a chief electrical engineer at Stanley Consultants, will lead students through an overview of design criteria, voltage levels and conductor selection.  Then, Prasad Yenumula with a PhD in civil engineering and extensive lead design engineering experience will teach weeks two and three.  Students study transmission line design clearances and how vertical and horizontal clearances are calculated.

Beginning in week four, Parvez Rashid, an asset manager with ATC will introduce electrical and mechanical characteristics of TLine insulation, including power frequency flashover, critical impulse flashover and transient voltages.  In week five, Parvez will provide an introduction to EMF, corona, audible noise limits and induction coordination.

In week six, Robert takes students through grounding issues in TLine design and finally, in week seven Parvez and Prassad will introduce students to the course final case study- a transmission line that needs to be upgraded for connection to a new renewable energy generation facility