GE B90 Instruction Manual page 209

5 SETTINGS
APPLICATION 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 PROTECTION
The Protection IEDs 1, 2, and 3 (
Direct I/O communications. Assume bits 13, 14, and 15 are used for this purpose as follows:
For IED 1:
DIRECT OUTPUT DEVICE ID
DIRECT OUT 13 OPERAND
DIRECT OUT 14 OPERAND
DIRECT OUT 15 OPERAND
For IED 2:
DIRECT OUTPUT DEVICE ID
DIRECT OUT 13 OPERAND
DIRECT OUT 14 OPERAND
DIRECT OUT 15 OPERAND
For IED 3:
DIRECT OUTPUT DEVICE ID
DIRECT OUT 13 OPERAND
DIRECT OUT 14 OPERAND
DIRECT OUT 15 OPERAND
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 is
accomplished with the following settings:
For IED 4:
DIRECT INPUT 1 DEVICE
DIRECT INPUT 1 BIT NUMBER
DIRECT INPUT 2 DEVICE
DIRECT INPUT 2 BIT NUMBER
DIRECT INPUT 3 DEVICE
DIRECT INPUT 3 BIT NUMBER
DIRECT INPUT 4 DEVICE
DIRECT INPUT 4 BIT NUMBER
DIRECT INPUT 5 DEVICE
DIRECT INPUT 5 BIT NUMBER
DIRECT INPUT 6 DEVICE
DIRECT INPUT 6 BIT NUMBER
DIRECT INPUT 7 DEVICE
DIRECT INPUT 7 BIT NUMBER
GE Multilin
breaker auxiliary switches
(if used for BF)
phase A current, wired to F7
phase B current, wired to F7
phase C current, wired to F7
BF CT = F7
set to "Protection") send the Breaker Fail current supervision flags over the
B90 FUNCTION
: "1" (this is an originating device)
: "BKRSUPV 3 SUPV OP" (this operand drives output number 13)
: "BKRSUPV 3 HISET OP" (this operand drives output number 14)
: "BKRSUPV 3 LOSET OP" (this operand drives output number 15)
: "2" (this is an originating device)
: "BKRSUPV 3 SUPV OP" (this operand drives output number 13)
: "BKRSUPV 3 HISET OP" (this operand drives output number 14)
: "BKRSUPV 3 LOSET OP" (this operand drives output number 15)
: "3" (this is an originating device)
: "BKRSUPV 3 SUPV OP" (this operand drives output number 13)
: "BKRSUPV 3 HISET OP" (this operand drives output number 14)
: "BKRSUPV 3 LOSET OP" (this operand drives output number 15)
: "1" (message received from IED 1)
: "13" (this is BKRSUPV 3 SUPV OP for Phase A)
: "1" (message received from IED 1)
: "14" (this is BKRSUPV 3 HISET OP for Phase A)
: "1" (message received from IED 1)
: "15" (this is BKRSUPV 3 LOSET OP for Phase A)
: "2" (message received from IED 2)
: "13" (this is BKRSUPV 3 SUPV OP for Phase B)
: "2" (message received from IED 2)
: "14" (this is BKRSUPV 3 HISET OP for Phase B)
: "2" (message received from IED 2)
: "15" (this is BKRSUPV 3 LOSET OP for Phase B)
: "3" (message received from IED 3)
: "13" (this is BKRSUPV 3 SUPV OP for Phase C)
B90 Low Impedance Bus Differential System
5.5 GROUPED ELEMENTS
Received as DIRECT
INPUTs 1 through 9
IED 4
IED 1
IED 2
IED 3
BKR FAIL SUPV OP
BKR FAIL HISET OP
BKR FAIL LOSET OP
836759A3.CDR
5
5-91