System Protection. a) Station Tap The station tap line shall be protected with two (2) line current differential relays (SEL 311L). The ‘A’ and ‘B’ package line protection shall perform breaker failure protection, and Direct Transfer Trip (“DTT”) transmit and received. It is preferred that the line protection use redundant ‘A’ and ‘B’ fiber lines where the redundant lines are physically separate and fully independent of each other. However, if the Interconnection Customer is unable to accommodate this, the station tap will be tripped for loss of communication. If the 115-46kV transformers at the Boonville Station are faulted or a 115kV bus fault occurs, the generation must be removed. DTT will be used to trip the generation, and the capability of the line differential relays will be used for DTT. DTT received from the Boonville Station will be required to trip the Interconnection Customer’s 46kV breaker for breaker failure. The Interconnection Customer shall provide on/off switches for line protection and DTT schemes.
Appears in 8 contracts
Samples: Service Agreement, Service Agreement, Service Agreement
