ii Installation Date Code 20001006
SEL-351 Instruction Manual
Password and Breaker Jumpers .......................................................................................2-32
EIA-232 Serial Port Voltage Jumpers..............................................................................2-33
Clock Battery..................................................................................................................2-33
TABLES
Table 2.1: Communication Cables to Connect the SEL-351 Relay to Other Devices............................2-15
Table 2.2: Output Contact Jumpers and Corresponding Output Contacts.............................................2-30
Table 2.3: “Extra Alarm” Output Contacts and Corresponding Controlling Jumpers ...........................2-30
Table 2.4: Required Position of Jumper JMP8 for Desired Output Contact OUT11 Operation
(Model 0351xT).......................................................................................................2-31
Table 2.5: Required Position of Jumper JMP23 for Desired Output Contact OUT107 Operation
(Models 0351x0, 0351x1, and 0351xY)....................................................................2-31
Table 2.6: Password and Breaker Jumper Positions for Standard Relay Shipments..............................2-32
Table 2.7: Password and Breaker Jumper Operation ...........................................................................2-32
Table 2.8: EIA-232 Serial Port Voltage Jumper Positions for Standard Relay Shipments.....................2-33
FIGURES
Figure 2.1: SEL-351 Relay Dimensions, Panel Cutout, and Drill Plan...................................................2-1
Figure 2.2: SEL-351 Relay Front- and Rear-Panel Drawings (Model 0351xT)......................................2-3
Figure 2.3: SEL-351 Relay Front- and Rear-Panel Drawings (Model 0351x0) ......................................2-4
Figure 2.4: SEL-351 Relay Front- and Rear-Panel Drawings – Model 0351x1 Rear and Models
0351x1 and 0351xY Front (Horizontal) ......................................................................2-5
Figure 2.5: SEL-351 Relay Front- and Rear-Panel Drawings – Model 0351xY Rear and Models
0351x1 and 0351xY Front (Vertical) ..........................................................................2-6
Figure 2.6: SEL-351 Relay Plug-In Connector Coding (Top View; Models 0351xT and 0351xY) .........2-9
Figure 2.7: SEL-351 Relay Provides Overcurrent Protection and Reclosing for a Utility
Distribution Feeder (Includes Fast Bus Trip Scheme)................................................2-17
Figure 2.8: SEL-351 Relay Provides Overcurrent Protection for a Distribution Bus (Includes Fast
Bus Trip Scheme; Delta-Connected Voltage Inputs Shown).......................................2-18
Figure 2.9: SEL-351 Relay Provides Directional Overcurrent Protection and Reclosing for a
Transmission Line ....................................................................................................2-19
Figure 2.10: SEL-351 Relay Provides Directional Overcurrent Protection and Reclosing for a
Transmission Line (Current-Polarization Source Connected to Channel IN)...............2-20
Figure 2.11: SEL-351 Relay Provides Overcurrent Protection for a Delta-Wye Transformer Bank ......2-21
Figure 2.12: SEL-351 Relay Provides Overcurrent Protection for a Transformer Bank With a
Tertiary Winding......................................................................................................2-22
Figure 2.13: SEL-351 Relay Provides Overcurrent Protection for an Industrial Distribution Feeder
(Core-Balance Current Transformer Connected to Channel IN) .................................2-23
Figure 2.14: SEL-351 Relay Provides Dedicated Breaker Failure Protection .......................................2-24
Figure 2.15: Jumper, Connector, and Major Component Locations on the SEL-351 Relay Main
Board (Model 0351xT).............................................................................................2-26
Figure 2.16: Jumper, Connector, and Major Component Locations on the SEL-351 Relay Main
Board (Models 0351x0, 0351x1, and 0351xY)..........................................................2-27
Figure 2.17: Jumper, Connector, and Major Component Locations on the SEL-351 Relay Extra
I/O Board (Models 0351xY, Plug-In Connector Version) ..........................................2-28
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