5-320 F60 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUALMONITORING ELEMENTS CHAPTER 5: SETTINGS5BREAKER RESTRIKE 1 HF DETECT — Enables/disables high-frequency (HF) pattern detection when breaker restrike occurs.High-frequency pattern is typical for capacitor bank, cables, and long transmission lines applications.BRK RSTR 1 BRK OPEN — Assigns a FlexLogic operand indicating the open position of the breaker. It must be logic “1” whenthe breaker is open. It is important to assign either 52 contact with this setting or breaker close command with BRK RSTR 1CLS CMD setting to give clear indication to the relay about breaker status.BRK RSTR 1 OPEN CMD — Assigns a FlexLogic operand indicating a breaker open command. It must be logic “1” when thebreaker is opened, either manually or from protection logic.BRK RSTR 1 CLS CMD — Assigns a FlexLogic operand indicating a breaker close command. It must be logic “1” when thebreaker is closed.Figure 5-175: Breaker restrike logic5.9.0.6 CT failure detectorSETTINGS CONTROL ELEMENTS MONITORING ELEMENTS CT FAILURE DETECTOR 1(4) CT FAILURE DETECTOR 1 CT FAIL 1 FUNCTION:DisabledRange: Disabled, Enabled CT FAIL 1 BLOCK:OffRange: FlexLogic operand CT FAIL 1 3I0 INP 1:SRC 1Range: SRC 1, SRC 2, SRC 3, SRC 4 CT FAIL 1 3I0 INP 1PKP: 0.2 puRange: 0.1 to 2.0 pu in steps of 0.1 CT FAIL 1 3I0 INP 2:SRC 2Range: SRC 1, SRC 2, SRC 3, SRC 4 CT FAIL 1 3I0 INP 2PKP: 0.2 puRange: 0.1 to 2.0 pu in steps of 0.1 CT FAIL 1 3V0 INPUT:SRC 1Range: SRC 1, SRC 2, SRC 3, SRC 4 CT FAIL 1 3V0 INPUTPKP: 0.20 puRange: 0.04 to 2.00 pu in steps of 0.01 CT FAIL 1 PICKUPDELAY: 1.000 sRange: 0.000 to 65.535 s in steps of 0.001
