
ii SEL-300G Relay Quick-Start Installation Guide
TABLES
Table 1: Communication Cables to Connect the SEL-300G Relay to Other Devices ............................ 6
Table 2: SET Command Editing Keystrokes .......................................................................................... 9
Table 3: SEL-300G Relay Contact I/O Viewed by the TAR Command............................................... 12
Table 4: Serial Port Commands That Clear Relay Data Buffers........................................................... 14
Table 5: Serial Port Command Summary.............................................................................................. 15
Table 6: Output Contact Jumpers and Corresponding Output Contacts ............................................... 35
Table 7: “Extra Alarm” Output Contacts and Corresponding Controlling Jumpers............................. 35
Table 8: Required Position of Jumper JMP23 for Desired Output Contact OUT107 Operation
(All Models) ............................................................................................................................ 36
Table 9: Password and Breaker Jumper Positions for Standard Relay Shipments ............................... 36
Table 10: Password and Breaker Jumper Operation ............................................................................... 37
Table 11: EIA-232 Serial Port Voltage Jumper Positions for Standard Relay Shipments...................... 37
FIGURES
Figure 1: Relay Commissioning Flowchart (refer to text for detailed instructions) ................................ 3
Figure 2: DC Supply Polarity, Continuity Checks ................................................................................... 4
Figure 3: Three-Phase AC Connection Test Voltage Signals ................................................................ 10
Figure 4: Open-Delta AC Potential Connection Test Voltage Signals................................................... 11
Figure 5: SEL-300G Front-Panel Pushbuttons – Overview ................................................................... 16
Figure 6: SEL-300G Front-Panel Pushbuttons – Primary Functions...................................................... 17
Figure 7: SEL-300G Front-Panel Pushbuttons – Primary Functions (continued) .................................. 18
Figure 8: SEL-300G Front-Panel Pushbuttons – Secondary Functions ................................................. 19
Figure 9: SEL-300G Dimensions and Panel-Mount Cut-Out................................................................. 20
Figure 10: SEL-300G Relay Front-Panel Drawings for Rack-Mount Relays (2U and 3U),
Screw-Terminal Block and Connectorized
®
Versions ............................................................ 21
Figure 11: SEL-300G Relay Front-Panel Drawings for Panel-Mount Relays (2U and 3U),
Screw-Terminal Block and Connectorized Versions .............................................................. 22
Figure 12: SEL-300G0 Relay Rear-Panel Drawings for Rack- and Panel-Mount Relays (2U and
3U), Screw-Terminal Block Version ...................................................................................... 23
Figure 13: SEL-300G1 Relay Rear-Panel Drawings for Rack- and Panel-Mount Relays (2U and
3U), Screw-Terminal Block Version ...................................................................................... 24
Figure 14: SEL-300G2 Relay Rear-Panel Drawings for Rack- and Panel-Mount Relays (2U and
3U), Screw-Terminal Block Version ...................................................................................... 25
Figure 15: SEL-300G3 Relay Rear-Panel Drawings for Rack- and Panel-Mount Relays (2U and
3U), Screw-Terminal Block Version ...................................................................................... 26
Figure 16: SEL-300G0 Relay Rear-Panel Drawings for Rack- and Panel-Mount Relays (2U and
3U), Connectorized Version.................................................................................................... 27
Figure 17: SEL-300G1 Relay Rear-Panel Drawings for Rack- and Panel-Mount Relays (2U and
3U), Connectorized Version.................................................................................................... 28
Figure 18: SEL-300G2 Relay Rear-Panel Drawings for Rack- and Panel-Mount Relays (2U and
3U), Connectorized Version.................................................................................................... 29
Figure 19: SEL-300G3 Rear-Panel Drawings for Rack- and Panel-Mount Relays (2U and 3U),
Connectorized Version............................................................................................................ 30
Figure 20: Jumper, Connector, and Major Component Locations on the SEL-300G Main Board
(All Models) ............................................................................................................................ 32
Figure 21: Jumper, Connector, and Major Component Locations on the SEL-300G Extra I/O
Board(Models 0300G_1, Screw-Terminal Block Version) .................................................... 33
Figure 22:
Jumper, Connector, and Major Component Locations on the SEL-300G Extra I/O
Board (Model 0300G_Y, Plug-In Connector Version)........................................................... 34