5-78
T35 Transformer Protection System
GE Multilin
5.2 PRODUCT SETUP
5 SETTINGS
5
Figure 5–19: DUAL-CHANNEL CLOSED LOOP (DUAL-RING) CONFIGURATION
In the above application, the following settings should be applied. For UR-series IED 1:
DIRECT OUTPUT DEVICE ID:
“1”
DIRECT I/O CH1 RING CONFIGURATION:
“Yes”
DIRECT I/O CH2 RING CONFIGURATION:
“Yes”
For UR-series IED 2:
DIRECT OUTPUT DEVICE ID:
“2”
DIRECT I/O CH1 RING CONFIGURATION:
“Yes”
DIRECT I/O CH2 RING CONFIGURATION:
“Yes”
For UR-series IED 3:
DIRECT OUTPUT DEVICE ID:
“3”
DIRECT I/O CH1 RING CONFIGURATION:
“Yes”
DIRECT I/O CH2 RING CONFIGURATION:
“Yes”
In this configuration the following delivery times are expected (at 128 kbps) if both the rings are healthy:
IED 1 to IED 2: 0.2 of power system cycle;
IED 1 to IED 3: 0.2 of power system cycle;
IED 2 to IED 3: 0.2 of power system cycle.
The two communications configurations could be applied to both permissive and blocking schemes. Speed, reliability and
cost should be taken into account when selecting the required architecture.
b) CRC ALARM CH1(2)
PATH: SETTINGS
PRODUCT SETUP
DIRECT I/O
CRC ALARM CH1(2)
The T35 checks integrity of the incoming direct input and output messages using a 32-bit CRC. The CRC alarm function is
available for monitoring the communication medium noise by tracking the rate of messages failing the CRC check. The
monitoring function counts all incoming messages, including messages that failed the CRC check. A separate counter adds
up messages that failed the CRC check. When the failed CRC counter reaches the user-defined level specified by the
CRC
ALARM CH1 THRESHOLD
setting within the user-defined message count
CRC ALARM 1 CH1 COUNT
, the
DIR IO CH1 CRC ALARM
FlexLogic operand is set.
When the total message counter reaches the user-defined maximum specified by the
CRC ALARM CH1 MESSAGE COUNT
set-
ting, both the counters reset and the monitoring process is restarted.
CRC ALARM CH1
CRC ALARM CH1
FUNCTION: Disabled
Range: Enabled, Disabled
MESSAGE
CRC ALARM CH1
MESSAGE COUNT: 600
Range: 100 to 10000 in steps of 1
MESSAGE
CRC ALARM CH1
THRESHOLD: 10
Range: 1 to 1000 in steps of 1
MESSAGE
CRC ALARM CH1
EVENTS: Disabled
Range: Enabled, Disabled
842715A1.CDR
UR IED 1
TX1
RX2
TX2
RX1
UR IED 2
RX2
TX1
RX1
TX2
UR IED 3
RX1
TX2
TX1
RX2
Summary of Contents for T35 UR Series
Page 10: ...x T35 Transformer Protection System GE Multilin TABLE OF CONTENTS ...
Page 48: ...2 18 T35 Transformer Protection System GE Multilin 2 2 SPECIFICATIONS 2 PRODUCT DESCRIPTION 2 ...
Page 314: ...5 192 T35 Transformer Protection System GE Multilin 5 10 TESTING 5 SETTINGS 5 ...
Page 338: ...6 24 T35 Transformer Protection System GE Multilin 6 5 PRODUCT INFORMATION 6 ACTUAL VALUES 6 ...
Page 350: ...7 12 T35 Transformer Protection System GE Multilin 7 2 TARGETS 7 COMMANDS AND TARGETS 7 ...
Page 366: ...8 16 T35 Transformer Protection System GE Multilin 8 2 CYBERSENTRY 8 SECURITY 8 ...
Page 406: ...A 14 T35 Transformer Protection System GE Multilin A 1 PARAMETER LISTS APPENDIX A A ...
Page 540: ...D 10 T35 Transformer Protection System GE Multilin D 1 IEC 60870 5 104 PROTOCOL APPENDIX D D ...
Page 552: ...E 12 T35 Transformer Protection System GE Multilin E 2 DNP POINT LISTS APPENDIX E E ...
Page 560: ...F 8 T35 Transformer Protection System GE Multilin F 3 WARRANTY APPENDIX F F ...