Common use of Circuit Breakers Clause in Contracts

Circuit Breakers. Each of the five breakers shall use reclosing and redundant breaker failure protection. ‘A’ and ‘B’ package breaker failure protection will be performed by two (2) SEL 351-6 relays for each breaker at the station (totaling ten (10) breaker failure relays). Reclosing will be performed by one (1) SEL 351-6 relay for each breaker in the station (totaling five (5) reclosing relays). Direct Transfer Trip (DTT) will be required between Laona Station and all three substations (Dunkirk, Falconer, and Arkwright Collector) for breaker failure protection. Lines 161 and 162 to Dunkirk and Lines 172 and 173 to Falconer will use the XXX XXXX0000. Line 174 to Arkwright Collector Substation will use the functionality of the line differential relays. Direct Transfer Trip receive from the Arkwright Collector Substation will be required for breaker failure. The functionality of the line differential relay will be used to transmit the signal. A transfer trip receive relay to trip the Line 174 breakers is required. Telecommunications • Protection Teleprotection between Laona Station and each of the remote substations (Dunkirk and Falconer) shall be new leased T1 fiber circuits from the local telco company (DFT Communications). The Connecting Transmission Owner is responsible for ordering these two circuits. Two (2) patch panels will be required at Laona Station for the fiber lines that the Developer must install between the Arkwright Collector Substation and the Laona Station. • Energy Management System and Remote Transmitting Unit (EMS-RTU) One (1) new digital data T1 64k MPLS VPN circuit provided through the telecom network fiber is required for the EMS-RTUs GarrettCom DX-940. The Developer is required to provide generator status to the Company’s EMS. To accommodate this, the Developer’s RTU at the Arkwright Collector Substation shall connect at Laona Station to a RS-232 serial port on the GarrettCom DX-940, or one of the RTUs, via the Developer’s fiber line between the two stations. Media converters may be required to convert from fiber to copper. • 911 Emergencies One (1) voice grade phone circuit shall be installed to the Laona Station meter panel for 911 emergencies. • Digital Fault Recorder (DFR) Two (2) DS-1 circuit shall be required for the Digital Fault Recorders.

Circuit Breakers. Each of the five breakers shall use reclosing and redundant breaker failure protection. ‘A’ and ‘B’ package breaker failure protection will be performed by two (2) SEL 351-6 relays for each breaker at the station (totaling ten (10) breaker failure relays). Reclosing will be performed by one (1) SEL 351-6 relay for each breaker in the station (totaling five (5) reclosing relays). Direct Transfer Trip (DTT) will be required between Laona Station and all three substations (Dunkirk, Falconer, and Arkwright Collector) for breaker failure protection. Lines 161 and 162 to Dunkirk and Lines 172 and 173 to Falconer will use the XXX XXXX0000RFL GARD8000. Line 174 to Arkwright Collector Substation will use the functionality of the line differential relays. Direct Transfer Trip receive from the Arkwright Collector Substation will be required for breaker failure. The functionality of the line differential relay will be used to transmit the signal. A transfer trip receive relay to trip the Line 174 breakers is required. SERVICE AGREEMENT NO. 2356 Telecommunications • Protection Teleprotection between Laona Station and each of the remote substations (Dunkirk and Falconer) shall be new leased T1 fiber circuits from the local telco company (DFT Communications). The Connecting Transmission Owner is responsible for ordering these two circuits. Two (2) patch panels will be required at Laona Station for the fiber lines that the Developer must install between the Arkwright Collector Substation and the Laona Station. • Energy Management System and Remote Transmitting Unit (EMS-RTU) One (1) new digital data T1 64k MPLS VPN circuit provided through the telecom network fiber is required for the EMS-RTUs GarrettCom DX-940. The Developer is required to provide generator status to the Company’s EMS. To accommodate this, the Developer’s RTU at the Arkwright Collector Substation shall connect at Laona Station to a RS-232 serial port on the GarrettCom DX-940, or one of the RTUs, via the Developer’s fiber line between the two stations. Media converters may be required to convert from fiber to copper. • 911 Emergencies One (1) voice grade phone circuit shall be installed to the Laona Station meter panel for 911 emergencies. • Digital Fault Recorder (DFR) Two (2) DS-1 circuit shall be required for the Digital Fault Recorders.

Circuit Breakers. Each of the five breakers shall use reclosing and redundant breaker failure protection. ‘A’ and ‘B’ package breaker failure protection will be performed by two (2) SEL 351-6 relays for each breaker at the station (totaling ten (10) breaker failure relays). Reclosing will be performed by one (1) SEL 351-6 relay for each breaker in the station (totaling five (5) reclosing relays). Direct Transfer Trip (DTT) will be required between Laona Station and all three substations (Dunkirk, Falconer, and Arkwright Collector) for breaker failure protection. Lines 161 and 162 to Dunkirk and Lines 172 and 173 to Falconer will use the XXX XXXX0000RFL GARD8000. Line 174 to Arkwright Collector Substation will use the functionality of the line differential relays. Direct Transfer Trip receive from the Arkwright Collector Substation will be required for breaker failure. The functionality of the line differential relay will be used to transmit the signal. A transfer trip receive relay to trip the Line 174 breakers is required. Telecommunications • Protection Teleprotection between Laona Station and each of the remote substations (Dunkirk and Falconer) shall be new leased T1 fiber circuits from the local telco company (DFT Communications). The Connecting Transmission Owner is responsible for ordering these two circuits. Two (2) patch panels will be required at Laona Station for the fiber lines that the Developer must install between the Arkwright Collector Substation and the Laona Station. • Energy Management System and Remote Transmitting Unit (EMS-RTU) One (1) new digital data T1 64k MPLS VPN circuit provided through the telecom network fiber is required for the EMS-RTUs GarrettCom DX-940. The Developer is required to provide generator status to the Company’s EMS. To accommodate this, the Developer’s RTU at the Arkwright Collector Substation shall connect at Laona Station to a RS-232 serial port on the GarrettCom DX-940, or one of the RTUs, via the Developer’s fiber line between the two stations. Media converters may be required to convert from fiber to copper. • 911 Emergencies One (1) voice grade phone circuit shall be installed to the Laona Station meter panel for 911 emergencies. • Digital Fault Recorder (DFR) Two (2) DS-1 circuit shall be required for the Digital Fault Recorders.