Inghams Substation. All equipment shall be installed in a new panel in Connecting Transmission Owner’s existing Inghams Substation and control house. It is assumed that all existing wiring trays and panels have sufficient capacity to accommodate the changes.
Inghams Substation. Due to system changes resulting from the interconnection of the Small Generating Facility, line relays at Connecting Transmission Owner’s Inghams Substation will need to be reset.
Inghams Substation. All modifications at the Inghams Substation will be completed in its yard and control enclosure.
a) Line 11/6 Protection Packages The existing Line 6 protections are step distance (SEL-221 and SEL-321) and cannot be reset to accommodate the addition of the generation. The relays will be replaced and located in the Connecting Transmission Owner’s control enclosure. The new ‘A’ package will be a permissive overreaching transfer trip (“POTT”) scheme consisting of an ERLPhase LPro 4000 and an XXX XXXX0000, and the new ‘B’ package will be step distance consisting of an SEL- 311C. DTT will be sent to the Tayandenega Solar Collector Substation for a line relay operation, tie breaker R81, or phase shifter out of service and R6 breaker failure. DTT for breaker failure will be received from the Tayandenega Solar Collector Substation. An SEL-351-6 will be added 6-1 SERVICE AGREEMENT NO. 2600 for DTT receive supervision and to trip and drive reclosing to lockout. The existing ACR reclosing relay will be replaced with SEL 351-6 relay to allow addition of Drive to Lockout (“DTL”) for DTT receive.
