GE T35 Instruction Manual page 185

5 SETTINGS
Figure 5–55: SINGLE-CHANNEL OPEN-LOOP CONFIGURATION
In the above architecture, Devices 1 and 3 do not communicate directly. Therefore, Device 2 must act as a 'bridge'. The fol-
lowing settings should be applied:
UR IED 1:
DIRECT OUT 2 OPERAND:
DIRECT INPUT 5 DEVICE ID:
DIRECT INPUT 5 BIT NUMBER:
DIRECT INPUT 6 DEVICE ID:
DIRECT INPUT 6 BIT NUMBER:
UR IED 3:
DIRECT OUT 2 OPERAND:
DIRECT INPUT 5 DEVICE ID:
DIRECT INPUT 5 BIT NUMBER:
DIRECT INPUT 6 DEVICE ID:
DIRECT INPUT 6 BIT NUMBER:
UR IED 2:
DIRECT INPUT 5 DEVICE ID:
DIRECT INPUT 5 BIT NUMBER:
DIRECT INPUT 6 DEVICE ID:
DIRECT INPUT 6 BIT NUMBER:
DIRECT OUT 2 OPERAND:
DIRECT OUT 3 OPERAND:
DIRECT OUT 4 OPERAND:
Signal flow between the three IEDs is shown in the figure below:
UR IED 1
DIRECT OUT 2 = HYB POTT TX1
In three-terminal applications, both the remote terminals must grant permission to trip. Therefore, at each terminal, Direct
Inputs 5 and 6 should be ANDed in FlexLogic™ and the resulting operand configured as the permission to trip (
setting).
RX1
GE Multilin
TX1
UR IED 1
RX1
UR IED 3
" "
HYB POTT TX1
"2"
"2" (this is a message from IED 2)
"2"
"4" (effectively, this is a message from IED 3)
" "
HYB POTT TX1
"2"
"2" (this is a message from IED 2)
"2"
"3" (effectively, this is a message from IED 1)
"1"
"2"
"3"
"2"
" "
HYB POTT TX1
" " (forward a message from 1 to 3)
DIRECT INPUT 5
" " (forward a message from 3 to 1)
DIRECT INPUT 6
DIRECT INPUT 5
DIRECT INPUT 6
Figure 5–56: SIGNAL FLOW FOR DIRECT I/O EXAMPLE 3
T35 Transformer Management Relay
RX1 RX2
UR IED 2
TX1 TX2
RX1
TX1
842714A1.CDR
UR IED 2
DIRECT INPUT 5
DIRECT OUT 2 = HYB POTT TX1
DIRECT OUT 4 = DIRECT INPUT 6
DIRECT OUT 3 = DIRECT INPUT 5
DIRECT INPUT 6
UR IED 3
DIRECT INPUT 5
DIRECT INPUT 6
DIRECT OUT 2 = HYB POTT TX1
5.7 INPUTS/OUTPUTS
842717A1.CDR
HYB POTT
5-107
5