Design Basics of Substation engineering

What is Phase to Phase Clearance in 11KV Line

• 280 mm

• 2600 mm

• 2750 mm

• None

What is Ground Clearance in 11KV Line

• 280 mm

• 140 mm

• 2750 mm

• None

What is Electrical Clearance?

• Shortest distance in air between two non conductive parts

• Shortest distance in air between two conductive parts / conductive part & earth.

• Shortest distance in air between conductive parts & non conductive part

• None

Which of the following is not the Standards / Statutory norms for clearances :

• IEC-60071

• IS-10118

• IE Rule

• IS-10001

Which is not the Physical factors of Site Selection in Sub-station Engineering:-

• Topography

• Geological

• Aeronautics

• Geography

Which is not the Infrastructural factors of Site Selection in Sub-station Engineering:-

• Easy access

• Amenities availability

• Reliable power and water supply

• Pollution

Which is not the Social & Environmental aspects of Site Selection in Sub-station Engineering:-

• Government or private land

• Forest encroachment

• Landscaping

• Pollution

Which is not the type of Survey during Site Selection in Sub-station Engineering:-

• Contour survey

• Line survey

• Network survey

• SLD Survey

What is Phase to Phase Clearance in 33KV Line :

• 3700 mm

• 320 mm

• 2800 mm

• None

What is Ground Clearance in 33KV Line :-

• 320 mm

• 1200 mm

• 3700 mm

• None