Distribution Automation Practices at 2/23/2015 Distribution Automation Practices at CenterPoint Energy Richard Gaido, PE Manager Transmission Projects CenterPoint Energy Proprietary & Confidential Information CenterPoint Energy Proprietary & Confidential Information

Auto transfer – Underground (Pad-mount) Circuit 1 Circuit 2 Customer Load N.C. N.O. Circuit 1 Circuit 2 Customer Load N.C. N.O. M M M M N.C.

Auto transfer – Underground (Vault) Circuit 1 Circuit 2 Customer Load N.C. N.O. Circuit 1 Circuit 2 Customer Load N.C. N.O. Circuit 1 Circuit 2 Customer Load N.C. N.O.

Network Circuit 4 Customer Load Circuit 2 Circuit 3 Circuit 1 N.C.

Loop Sectionalizing - Overhead

Loop Sectionalizing – Underground

“Manual” Automation / Remote Control

SMART Rollover RC RC RC 11A 10B 9A 7A 6B 5A 14A 13B 12A. N.C. N.O. DACS INTERFACE Smart RTU DACS INTERFACE Smart RTU 11A 10B 9A 7A 6B 5A 14A 13B 12A. RC RC RC N.C. N.O. N.C.

SMART Cascade A B A A B A A B A A B A A B A A B A

QUESTIONS?