xviiList of Figures
Date Code 20060320 Instruction Manual SEL-311C Relay
Figure 5.15 SEL-311C Connections to Communications Equipment
for a Two-Terminal Line DCB Scheme............................................................................ 5.29
Figure 5.16 SEL-311C Connections to Communications Equipment
for a Three-Terminal Line DCB Scheme.......................................................................... 5.30
Figure 5.17 Seal-in of Breaker Failure Occurrence for Message Display............................................... 5.34
Figure 6.1 Close Logic ............................................................................................................................ 6.2
Figure 6.2 Reclose Supervision Logic (Following Open Interval Time-Out) ......................................... 6.5
Figure 6.3 Reclose Supervision Limit Timer Operation (Refer to Bottom of Figure 6.2) ...................... 6.6
Figure 6.4 SEL-311C Relays Installed at Both Ends of
a Transmission Line in a High-Speed Reclose Scheme ..................................................... 6.9
Figure 6.5 Reclosing Relay States and General Operation.................................................................... 6.11
Figure 6.6 Reclosing Sequence From Reset to Lockout With Example Settings.................................. 6.15
Figure 6.7 Reclose Blocking for Islanded Generator ............................................................................ 6.23
Figure 7.1 Example Operation of Optoisolated Inputs
IN101 Through IN106 (Models 0311C00x and 0311C01x) .............................................. 7.3
Figure 7.2 Example Operation of Optoisolated Inputs
IN1201 Through IN208—Extra I/O Board (Model 0311C01x) ........................................ 7.4
Figure 7.3 Circuit Breaker Auxiliary Contact and
Reclose Enable Switch Connected to Optoisolated Inputs IN101 and IN102 ................... 7.5
Figure 7.4 Local Control Switches Drive Local Bits LB1 Through LB16.............................................. 7.7
Figure 7.5 Local Control Switch Configured as an ON/OFF Switch...................................................... 7.8
Figure 7.6 Local Control Switch Configured as an OFF/MOMENTARY Switch .................................. 7.8
Figure 7.7 Local Control Switch Configured as an ON/OFF/MOMENTARY Switch ........................... 7.8
Figure 7.8 Configured Manual Trip Switch Drives Local Bit LB3 ......................................................... 7.9
Figure 7.9 Configured Manual Close Switch Drives Local Bit LB4....................................................... 7.9
Figure 7.10 Remote Control Switches Drive Remote Bits RB1 Through RB16 .................................... 7.11
Figure 7.11 Traditional Latching Relay................................................................................................... 7.13
Figure 7.12 Latch Control Switches Drive Latch Bits LT1 Through LT16............................................. 7.13
Figure 7.13 SCADA Contact Pulses Input IN104 to Enable/Disable Reclosing Relay .......................... 7.14
Figure 7.14 Latch Control Switch Controlled by a Single Input to Enable/Disable Reclosing .............. 7.14
Figure 7.15 Latch Control Switch Operation Time Line......................................................................... 7.16
Figure 7.16 Time Line for Reset of Latch Bit LT2 After Active Setting Group Change ........................ 7.17
Figure 7.17 Latch Control Switch (With Time Delay Feedback)
Controlled by a Single Input to Enable/Disable Reclosing .............................................. 7.18
Figure 7.18 Latch Control Switch (With Time Delay Feedback) Operation Time Line ......................... 7.18
Figure 7.19 SCADA Contact Pulses Input IN105
to Switch Active Setting Group Between Setting Groups 1 and 4 ................................... 7.21
Figure 7.20 SEL
OGIC Control Equation Variable Timer SV8T Used in Setting Group Switching......... 7.21
Figure 7.21 Active Setting Group Switching (With Single Input) Time Line......................................... 7.23
Figure 7.22 Rotating Selector Switch Connected to Inputs IN101, IN102,
and IN103 for Active Setting Group Switching ............................................................... 7.24
Figure 7.23 Active Setting Group Switching (With Rotating Selector Switch) Time Line .................... 7.26
Figure 7.24 SEL
OGIC Control Equation Variables/Timers SV1/SV1T–SV6/SV6T................................ 7.28
Figure 7.25 SEL
OGIC Control Equation Variables/Timers SV7/SV7T–SV16/SV16T............................ 7.29
Figure 7.26 Dedicated Breaker Failure Scheme Created
With SEL
OGIC Control Equation Variables/Timers.......................................................... 7.30
Figure 7.27 Logic Flow for Example Output Contact Operation (Models 0311C00x and 0311C01x) .. 7.34
Figure 7.28 Logic Flow for Example Output Contact Operation—
Extra I/O Board (Model 0311C01x)................................................................................. 7.35
Figure 7.29 Traditional Panel Light Installations .................................................................................... 7.36
Figure 7.30 Rotating Default Display Replaces Traditional Panel Light Installations............................ 7.37
Figure 8.1 Plotted Breaker Maintenance Points for an Example Circuit Breaker................................... 8.3
Figure 8.2 SEL-311C Breaker Maintenance Curve for an Example Circuit Breaker ............................. 8.5
Figure 8.3 Operation of SEL
OGIC Control Equation Breaker Monitor Initiation Setting ....................... 8.6
Figure 8.4 Breaker Monitor Accumulates 10 Percent Wear.................................................................... 8.8
Figure 8.5 Breaker Monitor Accumulates 25 Percent Wear.................................................................... 8.9
Figure 8.6 Breaker Monitor Accumulates 50 Percent Wear.................................................................. 8.10
Figure 8.7 Breaker Monitor Accumulates 100 Percent Wear................................................................ 8.11
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