Control & Relay Panel Engineering :
In a Substation, Control & Relay panels are considered as the heart of the system. The Control and Relay panels can be separate panels or can be combined. The control panels, if sepatrated from the Relay panels, provide the control switches, alarm, annunciation, indication, interlocking and metering of the bay equipment either local manually or remote manually. Nowadays, a Bay control unit (BCU) is mounted on the control panel to monitor the entire operation of the bay and management from the control panel itself or from SCADA room HMI.
The Relay panels house the numerical protection relays of the bay along with auxiliary relays, contact multiplications, lock out relays, trip circuit supervision, lock out relay supervision, DC closing and tripping supply supervision etc. The Relay panel also interfaces with the Control panel for required interlocks and permissives.
Satcon is practicing such Control and Relay panel engineering for last two decades and has gathered very rich experience in preparing the Technical specifications, procurement assistance, vendor drawing review, preparation of scheme drawings of the CRP. Satcon can provide these services for substations of 765kV voltage or below.
