For
cost & safety, the outdoor substations are installed for voltages above :
11 kV
33
kV
60 kV
110 kV
33
kV
For
cost and safety the outdoor substation are installed for voltages above 33 kV.
The
outdoor substations have the following advantage over indoor substations :
1.
All equipment is within view and therefore locate is easier.
2.
The extension of the installation is easier, if required.
3.
The time required in erection of such substation is lesser.
Hence,
the correct option is (B).
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