Schweitzer Engineering Laboratories SEL-351-5, Инструкция по эксплуатации

Страница: 14 / 706

x List of Figures
SEL-351-5, -6, -7 Relay Instruction Manual
Date Code 20070117
Figure 6.10 Operation of SEL-351 Shot Counter for Sequence Coordination With Line Recloser
(Additional Settings Example 2).......................................................................................6.29
Figure 7.1 Example Operation of Optoisolated Inputs IN101–IN106 (Models 0351x0, 0351x1,
and 0351xY)........................................................................................................................7.2
Figure 7.2 Example Operation of Optoisolated Inputs IN201–IN208—
Extra I/O Board (Models 0351x1 and 0351xY)..................................................................7.3
Figure 7.3 Circuit Breaker Auxiliary Contact and Reclose Enable Switch Connected
to Optoisolated Inputs IN101 and IN102 ............................................................................7.4
Figure 7.4 Local Control Switches Drive Local Bits LB1 Through LB16 ..............................................7.6
Figure 7.5 Local Control Switch Configured as an ON/OFF Switch ......................................................7.7
Figure 7.6 Local Control Switch Configured as an OFF/MOMENTARY Switch ..................................7.7
Figure 7.7 Local Control Switch Configured as an ON/OFF/MOMENTARY Switch............................7.7
Figure 7.8 Configured Manual Trip Switch Drives Local Bit LB3 .........................................................7.8
Figure 7.9 Configured Manual Close Switch Drives Local Bit LB4 .......................................................7.8
Figure 7.10 Remote Control Switches Drive Remote Bits RB1–RB16...................................................7.10
Figure 7.11 Traditional Latching Relay ...................................................................................................7.12
Figure 7.12 Latch Control Switches Drive Latch Bits LT1–LT16 ...........................................................7.12
Figure 7.13 SCADA Contact Pulses Input IN104 to Enable/Disable Reclosing Relay...........................7.13
Figure 7.14 Latch Control Switch Controlled by a Single Input to Enable/Disable Reclosing...............7.13
Figure 7.15 Latch Control Switch Operation Time Line .........................................................................7.15
Figure 7.16 Time Line for Reset of Latch Bit LT2 After Active Setting Group Change.........................7.16
Figure 7.17 Latch Control Switch (With Time Delay Feedback) Controlled by a Single Input
to Enable/Disable Reclosing .............................................................................................7.17
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 SELOGIC Control Equation Variables/Timers SV1/SV1T Through SV6/SV6T ................7.28
Figure 7.25 SELOGIC Control Equation Variables/Timers SV7/SV7T Through SV16/SV16T ............7.29
Figure 7.26 Dedicated Breaker Failure Scheme Created With SELOGIC Control Equation
Variables/Timers ...............................................................................................................7.30
Figure 7.27 Logic Flow for Example Output Contact Operation (Models 0351x0, 0351x1,
and 0351xY)......................................................................................................................7.34
Figure 7.28 Logic Flow for Example Output Contact Operation—Extra I/O Board (Model 0351x1
and 0351xY)......................................................................................................................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 a 25 kV Circuit Breaker..........................................8.3
Figure 8.2 Breaker Maintenance Curve for a 25 kV 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
Figure 8.8 Input IN106 Connected to Trip Bus for Breaker Monitor Initiation ....................................8.14
Figure 8.9 DC Under- and Overvoltage Elements .................................................................................8.15
Figure 8.10 Create DC Voltage Elements With SEL
OGIC
Control Equations .........................................8.16
Figure 8.11 Response of Thermal and Rolling Demand Meters to a Step Input
(setting DMTC = 15 minutes)...........................................................................................8.21
Figure 8.12 Voltage V
S
Applied to Series RC Circuit .............................................................................8.22
Figure 8.13 Demand Current Logic Outputs ...........................................................................................8.25
Figure 8.14 Raise Pickup of Residual Ground Time-Overcurrent Element for Unbalance Current .......8.26
Figure 9.1 U.S. Moderately Inverse Curve: U1 .......................................................................................9.7
Figure 9.2 U.S. Inverse Curve: U2 ...........................................................................................................9.8