The value of the contract has not been disclosed.
Crompton Greaves' automation business unit would supply sub-stations while its engineering projects division would manage them, a statement issued here said.
"The SAS is intended to help monitor and improve Power Grid's transmission capacity across the state," the release said.
Greaves would supply six 220/132/33 KV ZIV 61850 sub-station systems to PGCIL's Govindpur, Manoharpur, Jaduguda, Dalbhumgarh, Jamtara and Rourkela units.
The scope of the contract also includes manufacturing and supply of ZIV protection and control relays, automation systems and engineering services, the statement said.