Answer / shahin

Because the star point is needed to be grounded. Which
isn't possible in delta system....

Answer / mahesh sali

in order get the neutral point for earth fault protection
and differential protection ct always connected in star,
ct also used for overload protection by measuring the
balance phase current.

Answer / felixraj

for getting phase measurement and protection

Answer / mu

felixraj is correct...........
welldone

Answer / arvindpanchal75

ALL CT'S CONNECTED IN STAR CONNECTION BECAUSE C.T MEASURE THE PHASE CURRENT,

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