You Do Need power plug adapter while traveling from South Sudan to Azores.

Here is Why You Need An Adapter

The outlet and plug type used in Azores are B, C and F and in South Sudan are C and D. This is how they look like.

South Sudan

In South Sudan, outlets of type C and D are in use.

Type C

Type D

Azores

In Azores, outlets of type B, C and F are in use.

Type B

Type C

Type F