GE Multilin B90 Low Impedance Bus Differential System 5-955 SETTINGS 5.5 GROUPED ELEMENTS5APPLICATION EXAMPLE:For illustration, assume the F7 current is monitored for Breaker Failure protection of a given breaker as shown below.Figure 5–42: DIRECT I/O SAMPLE CONFIGURATION FOR BREAKER FAILURE PROTECTIONThe Protection IEDs 1, 2, and 3 (B90 FUNCTION set to "Protection") send the Breaker Fail current supervision flags over theDirect I/O communications. Assume bits 13, 14, and 15 are used for this purpose as follows:For IED 1: DIRECT OUTPUT DEVICE ID: "1" (this is an originating device)DIRECT OUT 13 OPERAND: "BKRSUPV 3 SUPV OP" (this operand drives output number 13)DIRECT OUT 14 OPERAND: "BKRSUPV 3 HISET OP" (this operand drives output number 14)DIRECT OUT 15 OPERAND: "BKRSUPV 3 LOSET OP" (this operand drives output number 15)For IED 2: DIRECT OUTPUT DEVICE ID: "2" (this is an originating device)DIRECT OUT 13 OPERAND: "BKRSUPV 3 SUPV OP" (this operand drives output number 13)DIRECT OUT 14 OPERAND: "BKRSUPV 3 HISET OP" (this operand drives output number 14)DIRECT OUT 15 OPERAND: "BKRSUPV 3 LOSET OP" (this operand drives output number 15)For IED 3: DIRECT OUTPUT DEVICE ID: "3" (this is an originating device)DIRECT OUT 13 OPERAND: "BKRSUPV 3 SUPV OP" (this operand drives output number 13)DIRECT OUT 14 OPERAND: "BKRSUPV 3 HISET OP" (this operand drives output number 14)DIRECT OUT 15 OPERAND: "BKRSUPV 3 LOSET OP" (this operand drives output number 15)The above 9 flags must be received at the IED 4. Assume Direct Inputs 1 through 9 are to be used for this purpose. This isaccomplished with the following settings:For IED 4: DIRECT INPUT 1 DEVICE: "1" (message received from IED 1)DIRECT INPUT 1 BIT NUMBER: "13" (this is BKRSUPV 3 SUPV OP for Phase A)DIRECT INPUT 2 DEVICE: "1" (message received from IED 1)DIRECT INPUT 2 BIT NUMBER: "14" (this is BKRSUPV 3 HISET OP for Phase A)DIRECT INPUT 3 DEVICE: "1" (message received from IED 1)DIRECT INPUT 3 BIT NUMBER: "15" (this is BKRSUPV 3 LOSET OP for Phase A)DIRECT INPUT 4 DEVICE: "2" (message received from IED 2)DIRECT INPUT 4 BIT NUMBER: "13" (this is BKRSUPV 3 SUPV OP for Phase B)DIRECT INPUT 5 DEVICE: "2" (message received from IED 2)DIRECT INPUT 5 BIT NUMBER: "14" (this is BKRSUPV 3 HISET OP for Phase B)DIRECT INPUT 6 DEVICE: "2" (message received from IED 2)DIRECT INPUT 6 BIT NUMBER: "15" (this is BKRSUPV 3 LOSET OP for Phase B)DIRECT INPUT 7 DEVICE: "3" (message received from IED 3)DIRECT INPUT 7 BIT NUMBER: "13" (this is BKRSUPV 3 SUPV OP for Phase C)836759A3.CDRReceived as DIRECTINPUTs 1 through 9sent as bits no.13, 14 and 15BKR FAIL SUPV OPBKR FAIL HISET OPBKR FAIL LOSET OPphase A current, wired to F7phase B current, wired to F7phase C current, wired to F7BF CT = F7IED 4IED 1IED 2IED 3breaker auxiliary switches(if used for BF)
