Line 7 Protection Packages. The existing Line 7 relays cannot be reset to accommodate the generation and shall be replaced. The new Line 7 protection packages will both be step distance schemes. The ‘A’ package will use an LPRO 4000 and the ‘B’ package will use an SEL 311C. Interconnection of the Small Generating Facility will require the addition of DTT transmit and receive to the Grissom Solar Collector Substation. A new GARD 8000 shall be installed for communication with the Grissom Solar Collector Substation. DTT will be sent to the Grissom Solar Collector Substation for a line relay operation or R7 breaker failure. DTT for breaker failure will be received from Grissom Solar Collector Substation. A SEL 351-6 relay will be added for DTT receive supervision and will be used to trip and drive reclosing to lockout. The existing ACR reclosing relay shall be replaced with a SEL 351-6 to allow for the addition of drive-to-lockout (DTL) for DTT receive. (Note: Due to the addition of the Small Generating Facility, an area coordination study will be completed during final engineering and may result in resetting of relays in the area. The Interconnection Customer shall be responsible for all costs associated with this.)
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Samples: Interconnection Agreement, Service Agreement, Interconnection Agreement