11kv/0.433kv, 2 mva , transformer , for protection and
metering how many CT/PT are required?
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Answer Posted / d ramesh
11KV side(delta)
Line side 3core CT :1No. for metering, O/C&E/F protection,
Differential protection with ICT.
0.433KV(Star)
Nuetral CTs :1core for Standby E/F 5p20
Line CTs :3core CT:1No for metering, O/C&E/F
protection,Differential protection with ICT.
1No. 1-core CT in LV nuetral of Transformer of class 5P20
for earth fault protection.
panel side in the panel itself remaining CTs can be
provided for metering, O/C&E/F, and differential cores with
ICT. In both HV panel & LV panel.
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