Date Code 20060320 Instruction Manual SEL-311C Relay
List of Figures
Figure 1.1 SEL-311C Transmission Line Protection With Pilot Protection,
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IRRORED BITS
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Communications, Reclosing, and Synchronism Check ........................ 1.3
Figure 1.2 SEL-311C Inputs, Outputs, and Communications Ports
(Models 0311C00x and 0311C01x) ................................................................................... 1.5
Figure 1.3 SEL-311C Extra I/O Board (Model 0311C01x) .................................................................... 1.7
Figure 1.4 SEL-311C Communications Connections Examples............................................................. 1.8
Figure 2.1 SEL-311C Dimensions and Panel-Mount Cutout .................................................................. 2.1
Figure 2.2 SEL-311C Front- and Rear-Panel Drawings—
Models 0311C00H2 (Rack) and 0311C0032 (Panel)......................................................... 2.2
Figure 2.3 SEL-311C Front- and Rear-Panel Drawings—
Models 0311C00V1 (Rack) and 0311C0041 (Panel)......................................................... 2.3
Figure 2.4 SEL-311C Front-Panel Drawings—Models 0311C01H2 (Rack) and 0311C0132 (Panel) ... 2.4
Figure 2.5 SEL-311C Front-Panel Drawings—Models 0311C01H1 (Rack) and 0311C0131 (Panel) ... 2.5
Figure 2.6 SEL-311C Front-Panel Drawings—Models 0311C01V1 and 0311C01V2........................... 2.6
Figure 2.7 SEL-311C Front-Panel Drawings—Models 0311C0141 and 0311C0142 ............................ 2.7
Figure 2.8 SEL-311C 3U Rear-Panel Terminal Block Drawings
(With and Without Additional I/O Board).......................................................................... 2.8
Figure 2.9 SEL-311C 3U Rear-Panel Terminal Block Drawing
(Fast Hybrid High-Current Interrupting Output Contacts)................................................. 2.9
Figure 2.10 SEL-311C 2U Rear-Panel Connectorized
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Drawing........................................................... 2.10
Figure 2.11 SEL-311C 3U Rear-Panel Connectorized Drawings
(With and Without Additional I/O Board)........................................................................ 2.11
Figure 2.12 Possible Connections for Fast High-Current Interrupting Output Contacts
(Circuit Load Not Shown, Third Terminal Connection Is Optional)................................ 2.14
Figure 2.13 SEL-311C Provides Distance and Overcurrent Protection,
Reclosing, and Synchronism Check for a Transmission Line.......................................... 2.16
Figure 2.14 SEL-311C Provides Distance and Overcurrent Protection and Reclosing
for a Transmission Line (Current-Polarization Source Connected to Channel IP) .......... 2.17
Figure 2.15 SEL-311C Line Protection Through a Delta-Wye Transformer
Using Compensator Distance Elements ........................................................................... 2.18
Figure 2.16 Jumper, Connector, and Major Component Locations on the SEL-311C Main Board........ 2.20
Figure 2.17 Jumper, Connector, and Major Component Locations on the SEL-311C Extra I/O Board. 2.21
Figure 2.18 Interface Board 5 Component Layout.................................................................................. 2.22
Figure 3.1 Positive-Sequence Polarized Mho Element With Reach Equal to Line Impedance .............. 3.3
Figure 3.2 Compensator-Distance Phase-to-Phase Element Operation................................................... 3.4
Figure 3.3 Compensator-Distance Three-Phase Element Operation....................................................... 3.5
Figure 3.4 Zone 1 AB Phase Distance Logic .......................................................................................... 3.7
Figure 3.5 Zone 2 AB Phase Distance Logic .......................................................................................... 3.8
Figure 3.6 Zones 3 and 4 AB Phase Distance Logic ............................................................................... 3.9
Figure 3.7 Zone 1 Mho Ground Distance Logic.................................................................................... 3.11
Figure 3.8 Zone 2 Mho Ground Distance Logic.................................................................................... 3.12
Figure 3.9 Zones 3 and 4 Mho Ground Distance Logic ........................................................................ 3.12
Figure 3.10 Zone 1 Quadrilateral Ground Distance Logic ...................................................................... 3.13
Figure 3.11 Zone 2 Quadrilateral Ground Distance Logic ...................................................................... 3.14
Figure 3.12 Zones 3 and 4 Quadrilateral Ground Distance Logic........................................................... 3.15
Figure 3.13 Ground and Phase Distance Speed Curves—Standard Output ............................................ 3.17
Figure 3.14 Ground and Phase Distance Speed Curves—Fast Hybrid Output ....................................... 3.18
Figure 3.15 Zone 1 Extension Logic ....................................................................................................... 3.19
Figure 3.16 Zone Timing Elements ......................................................................................................... 3.21
Figure 3.17 Out-of-Step Zone Detection Logic....................................................................................... 3.24
Figure 3.18 Out-of-Step Logic ................................................................................................................ 3.25
Figure 3.19 Levels 1 Through 3 Phase Instantaneous/Definite-Time Overcurrent Elements ................. 3.27
Figure 3.20 SEL-311C Nondirectional Instantaneous Overcurrent Element Pickup Time Curve.......... 3.28
Figure 3.21 SEL-311C Nondirectional Instantaneous Overcurrent Element Reset Time Curve ............ 3.28