A Single Line Diagram (SLD) of an Electrical System is the Line Diagram
of the concerned Electrical System which includes all the required
ELECTRICAL EQUIPMENT connection sequence wise from the point of entrance
of Power upto the end of the scope of the mentioned Work.
As in the
case of 132KV Substation, the SLD shall show Lightining Arrestor, State
Electricity Board's C.T/P.T Unit, Issolators, Protection and Metering
P.T & C.T. Ciruit Breakers, again Issolators and circuit Breakers,
Main Power Transformer, all protective devices/relays and other special
equipment like NGR, CVT, GUARD RINGS, SDR etc etc as per design
criteria.
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