Complex sentence: In the same year DC supply was installed at Winneba but this was subsequently changed to AC by extending an existing supply from Swedru and during the period 1929-30, a limited electricity supply was extended to Tamale until a new AC plant was installed in 1938.
Split into simpler sentences: In the same year DC supply was installed at Winneba but this was subsequently changed to AC by extending an existing supply from Swedru. During the period 1929-30, a limited electricity supply was extended to Tamale until a new AC plant was installed in 1938.