Sel SEL-751A Express Installation Manual Download

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Package Contents

Panel Cutout Template

Manual CD &

SEL

ERATOR

QuickSet

Software CD

No. 8-32 Mounting Screws,

Gasket, & Serial Port Cover

Configurable Label Kit

(if equipped)

Label Removal Tool

Blank Pushbutton LED Label

198–0424

RIGHT

Blank Target LED Label

198-0424

LEFT

For Additional Technical Assistance Call +1.509.332.1890

Express Installation Guide

SEL-751A Feeder Protection Relay

Courtesy of NationalSwitchgear.com

Summary of Contents for SEL-751A

Page 1: ...et Serial Port Cover Configurable Label Kit if equipped Label Removal Tool Blank Pushbutton LED Label 198 0424 RIGHT UP Blank Target LED Label 198 0424 LEFT UP For Additional Technical Assistance Call...

Page 2: ...ONTROL INPUTS INPUT POWER OUTPUT CONTACTS SEL 751A Feeder Protection Relay A diagram for a four wire wye connection is also available in the instruction manual Power Supply 110 230 Vac 24 48 Vdc 110 2...

Page 3: ...g location and trace 2 Make smooth cut around cutout 3 Place mounting gasket around relay and insert unit into hole The photo displays optional appearance bezel 4 Fasten relay to mounting plate with i...

Page 4: ...p 3 Connect up to 2 digital inputs per application requirements to optoisolated inputs IN101 terminals 10 and 11 and IN102 terminals 11 and 12 Step 4 Connect the 3 output contacts per application requ...

Page 5: ...agram For other PT connection options refer to Section 2 of the SEL 751A manual Card Slot Z Current Inputs Card Connect phase current and neutral current inputs as shown in the typical connections dia...

Page 6: ...your choice for the connection Then you will choose which port to connect through Make sure you select the same port that you connected the cable to then click OK Step 4 Set the PC terminal emulation...

Page 7: ...LERATOR QuickSet SEL 5030 Software a Connect the relay to a PC using an SEL C234A serial or SEL C662 USB cable b Apply power to the relay c Start the ACSELERATOR QuickSet software program and establis...

Page 8: ...tering Group 1 Logic Settings Enable and enter SELOGIC equations settings as needed by the application Repeat above steps for Group 2 and 3 settings if required by the application Global Settings Revi...