Protection Engineering Basics and Schemes Protection Engineering | Page 29

1.1.10 CT by location is divided in two types
 Indoor CT (Usually in Switch
rack/Switchgear/Substation)
 Outdoor CT(Usually in Gantry of Grid)
it is indoor CT, located within
Switchgear or Circuit breaker , usually it is located the
lower bus bar which then connected to circuit breaker for
purpose of circuit completion so it can easily be
connected with the incoming or outgoing cable.
It is outdoor CT, located usually in
the gantry of Grid, the application by location affect many
factors which will be discussed later on.
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