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Electrical Design of Switchgear Assemblies

Electrical Design of switchgear Assemblies

Engineers in Design/Maintenance/Project/Purchase Dept., Consultants/Contractors/OEM/Panel Builders and Engineers working with them.

Duration : 4 Days

Programme Contents :

  • Switchboard overview.

  • Electrical design of L.V. motor control feeder components

    –Contactors, thermal overload relay, switches/disconnectors, HRC fuse, MPCB`s, starters.

  • Electrical design of power control feeder accressories : -Fault level calculations -Selection of – ACB`s, MCCB`s, MCB`s/ELCB`s

  • Understanding control accessories - Meters, Push buttons, timers, selector switches, Control transformer, Current transformer, potential transformer.

  • Electrical Design Aspects of other switchboard items :

    -Busbar- nominal and short circuit currents, sizing of phase and neutral busbar, selection of busbar support, arc travel phenomenon .

    -Cables – Types, selection, derating, protection, short time and continous ratings.

    -Enclosure – designs and forms,selection,inspection and testing

  • Basic aspects of electrical safety .

    Workshop Sessions :

    -Demonstration of switchgear products .

    -Good termination practise.

    Methodology :

     Lectures, discussions, videos, case studies with emphasis on selection supported by demonstrations.


    Larsen & Toubro - Electrical Business Group