
1) Central power supply unit
Found on
https://www.crosswordclues.com/clue/cpsu

The official name of the communist party in the Soviet Union since 1952. Originally the Bolshevik faction of the Russian Social Democratic Labor Party, the party was named the Russian Communist Party (Bolshevik) from March 1918 to December 1925, the All-Union Communist Party (Bolshevik) from December 1925 to October 1952, and the CPSU thereafter.
Found on
http://soviethistory.msu.edu/glossary/

Central Power Supply Unit
Found on
http://www.tornado-data.com/siteinfo/glossary.htm

The official name of the communist party in the Soviet Union since 1952. Originally the Bolshevik (q.v.) faction of the Russian Social Democratic Labor Party (q.v.), the party was named the Russian Communist Party (Bolshevik) from March 1918 to December 1925, the All-Union Communist Party (Bolshevik) from December 1925 to October 1952, and the CPSU...
Found on
https://irp.fas.org/world/russia/su_glos.html
No exact match found.