Schweitzer Engineering SEL-300G User manual

20170804
SEL-300G
Multifunction
Generator Relay
Quick-Start Guide
*PM300GQS-01*

SEL-300G Relay Quick-Start Guide Date Code 20170804
© 1998–2017 by Schweitzer Engineering Laboratories, Inc. All rights reserved.
All brand or product names appearing in this document are the trademark or registered trademark of their respective holders. No SEL
trademarks may be used without written permission. SEL products appearing in this document may be covered by U.S. and Foreign patents.
Schweitzer Engineering Laboratories, Inc. reserves all rights and benefits afforded under federal and international copyright and patent laws in
its products, including without limitation software, firmware, and documentation.
The information in this document is provided for informational use only and is subject to change without notice. Schweitzer Engineering
Laboratories, Inc. has approved only the English language document.
This product iscovered by the standard SEL 10-year warranty. For warranty details, visit selinc.com or contact your customer service
representative. PM300GQS-01

Date Code 20170804 Quick-Start Guide SEL-300G Relay
Table of Contents
List of Tables...................................................................................................................................................... iii
List of Figures..................................................................................................................................................... v
Preface.................................................................................................................................................................. vii
Overview .......................................................................................................................................................... vii
Safety Information........................................................................................................................................... vii
Factory Assistance............................................................................................................................................ ix
Relay Commissioning Procedure.................................................................................................................. 1
Introduction ........................................................................................................................................................ 1
Required Equipment.......................................................................................................................................... 1
Commissioning Procedure................................................................................................................................. 2
Serial Port Command Summary.................................................................................................................. 12
Front-Panel Pushbutton Operation............................................................................................................ 14
Overview .......................................................................................................................................................... 14
Primary Functions ........................................................................................................................................... 14
Front-Panel Password Security........................................................................................................................ 15
Secondary Functions ....................................................................................................................................... 16
Relay Mounting.................................................................................................................................................. 18
Circuit Board Jumpers.................................................................................................................................... 29
Accessing the Relay Main Board (All Models) and Extra I/O Board (Models 0300G_1 and 0300G_Y)....... 29
Output Contact Jumpers .................................................................................................................................. 32
“Extra Alarm” Output Contact Control Jumper .............................................................................................. 33
Password and Breaker Jumpers....................................................................................................................... 34
EIA-232 Serial Port Voltage Jumpers ............................................................................................................. 34
Specifications .................................................................................................................................................... 35
Differential Element Commissioning Worksheet ................................................................................. 41
Check List......................................................................................................................................................... 42
Plot Phasors ..................................................................................................................................................... 42

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Date Code 20170804 Quick-Start Guide SEL-300G Relay
List of Tables
Table 1 Communication Cables to Connect the SEL-300G Relay to Other Devices ............................ 4
Table 2 SET Command Editing Keystrokes ......................................................................................... 7
Table 3 SEL-300G Relay Contact I/O Viewed by the TAR Command ............................................... 10
Table 4 Serial Port Commands That Clear Relay Data Buffers .......................................................... 11
Table 5 Serial Port Command Summary.............................................................................................. 12
Table 6 Output Contact Jumpers and Corresponding Output Contacts ............................................... 33
Table 7 “Extra Alarm” Output Contacts and Corresponding Controlling Jumpers............................. 33
Table 8 Required Position of Jumper JMP23 for Desired Output Contact OUT107 Operation (All
Models)................................................................................................................................ 33
Table 9 Password and Breaker Jumper Positions for Standard Relay Shipments................................ 34
Table 10 Password and Breaker Jumper Operation ............................................................................... 34
Table 11 EIA-232 Serial Port Voltage Jumper Positions for Standard Relay Shipments ...................... 34

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Date Code 20170804 Quick-Start Guide SEL-300G Relay
List of Figures
Figure 1 Relay Commissioning Flowchart (refer to text for detailed instructions)................................. 2
Figure 2 DC Supply Polarity, Continuity Checks....................................................................................3
Figure 3 SEL-300G to Computer—C227A and C234A.......................................................................... 5
Figure 4 Three-Phase AC Connection Test Voltage Signals.................................................................. 8
Figure 5 Open-Delta AC Potential Connection Test Voltage Signals.................................................... 9
Figure 6 SEL-300G Front-Panel Pushbuttons—Overview.................................................................... 14
Figure 7 SEL-300G Front-Panel Pushbuttons—Primary Functions...................................................... 15
Figure 8 SEL-300G Front-Panel Pushbuttons—Primary Functions (continued) .................................. 16
Figure 9 SEL-300G Front-Panel Pushbuttons—Secondary Functions.................................................. 17
Figure 10 SEL-300G Dimensions and Panel-Mount Cut-Out................................................................. 18
Figure 11 SEL-300G Relay Front-Panel Drawings for Rack-Mount Relays
(2U and 3U), Screw-Terminal Block and Connectorized Versions ..................................... 19
Figure 12 SEL-300G Relay Front-Panel Drawings for Panel-Mount Relays
((2U and 3U), Screw-Terminal Block and Connectorized Versions.................................... 20
Figure 13 SEL-300G0 Relay Rear-Panel Drawings for Rack- and Panel-Mount Relays
(2U and 3U), Screw-Terminal Block Version...................................................................... 21
Figure 14 SEL-300G1 Relay Rear-Panel Drawings for Rack- and Panel-Mount Relays
(2U and 3U), Screw-Terminal Block Version...................................................................... 22
Figure 15 SEL-300G2 Relay Rear-Panel Drawings for Rack- and Panel-Mount Relays
(2U and 3U), Screw-Terminal Block Version...................................................................... 23
Figure 16 SEL-300G3 Relay Rear-Panel Drawings for Rack- and Panel-Mount Relays
(2U and 3U), Screw- Terminal Block Version..................................................................... 24
Figure 17 SEL-300G0 Relay Rear-Panel Drawings for Rack- and Panel-Mount Relays
(2U and 3U), Connectorized Version .................................................................................. 25
Figure 18 SEL-300G1 Relay Rear-Panel Drawings for Rack- and Panel-Mount Relays
(2U and 3U), Connectorized Version .................................................................................. 26
Figure 19 SEL-300G2 Relay Rear-Panel Drawings for Rack- and Panel-Mount Relays
(2U and 3U), Connectorized Version .................................................................................. 27
Figure 20 SEL-300G3 Rear-Panel Drawings for Rack- and Panel-Mount Relays
(2U and 3U), Connectorized Version .................................................................................. 28
Figure 21 Jumper, Connector, and Major Component Locations on the SEL-300G Main Board (All
Models)................................................................................................................................ 30
Figure 22 Jumper, Connector, and Major Component Locations on the SEL-300G Extra I/O
Board (Models 0300G_1, Screw-Terminal Block Version)................................................. 31
Figure 23 Jumper, Connector, and Major Component Locations on the SEL-300G Extra I/O Board
(Model 0300G_Y, Plug-In Connector Version) ................................................................... 32

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Date Code 20170804 Quick-Start Guide SEL-300G Relay
Preface
Overview
What This Guide Contains
The SEL-300G Relay Quick-Start Installation Guide is designed to help you
do the following:
➤Install the SEL-300G according to wiring diagrams you
provide.
➤Enter relay settings according to settings sheets for your
application.
➤Perform commissioning checkouts to ensure the relay is
correctly connected.
Serial port command and front-panel operation summaries, information on
relay circuit board jumpers, a cut and drill plan, and relay front- and rear-panel
drawings are also included.
To use this guide successfully, you need the information and tools referred to
in Required Equipment on page 1.
Obtain an SEL-300G Relay Instruction Manual
To obtain a copy of the SEL-300G Relay Instruction Manual, simply contact
the factory using the information provided in Factory Assistance. The
SEL-300G Relay Instruction Manual contains additional details on relay
operation and settings calculations.
Safety Information The SEL-300G Relay Quick-Start Installation Guide does not cover all of the
possible conditions or circumstances that can occur during the installation of
the SEL-300G. If you need additional information to install or communicate
with the SEL-300G Relay, please refer to the SEL-300G Relay Instruction
Manual or contact SEL for assistance.
Danger, Warnings, and Cautions
There are three types of hazard statements in this guide.
DANGER
Indicates an imminently hazardous situation
that, if not avoided, will result in death or
serious injury.
WARNING
Indicates a potentially hazardous situation
that, if not avoided, could result in death or
serious injury.
CAUTION
Indicates a potentially hazardous situation
that, if not avoided, may result in minor or
moderate injury or equipment damage.

viii
SEL-300G Relay Quick-Start Guide Date Code 20170804
Preface
Safety Information
Safety Symbols
The following symbols are often marked on SEL products.
Safety Marks
The following statements apply to this device.
CAUTION
Refer to accompanying documents.
ATTENTION
Se reporter à la documentation.
Earth (ground) Terre
Protective earth (ground) Terre de protection
Direct current Courant continu
Alternating current Courant alternatif
Both direct and alternating current Courant continu et alternatif
Instruction manual Manuel d’instructions
General Safety Marks
For use in Pollution Degree 2 environment. Pour l'utilisation dans un environnement de Degré de Pollution 2.
Other Safety Marks (Sheet 1 of 2)
CAUTION
Be sure to follow the generator and prime mover manufacturers'
guidelines with respect to generator operation and
commissioning.
ATTENTION
Suivez attentivement les instructions des manufacturiers de la turbine et
de la génératrice pour la réception, la mise en route et l'opération.
CAUTION
Do not apply reverse polarity dc voltage or ac voltage to terminals
Z25 and Z26 of SEL-300G Relays rated for 24/48 Vdc applications.
Relay failure and permanent power supply damage will result from
application of reverse polarity dc voltage to relays rated for 24/48
Vdc applications.
ATTENTION
N'appliquer pas un voltage CC avec polarité inversée ou un voltage CA, sur
les bornes Z35 et Z26 des relais 300G dont la tension d'alimentation
nominale est 24/48 VCC. Une perte de fonctionnement du relais et un bris
permanent de l'alimentation résulteraient de l'application d'une polarité
CC inversée sur un relais avec tension nominale de 24/48 VCC.
CAUTION
Standard SEL relay output contacts are rated to make and carry
trip coil current, but are not rated to interrupt trip coil current. Do
not exceed the contact interrupt ratings shown in the General
Specifications.
ATTENTION
Les contacts standards des relais SEL ont la capacité de fermer sur le
courant spécifié des bobines d'ouverture mais ne peuvent ouvrir sur le
même courant. Il est important de ne pas dépasser les capacités des
contacts indiquées an paragraphe Spécifications Générales.
CAUTION
The relay contains devices sensitive to electrostatic discharge
(ESD). When working on the relay with front or top cover removed,
work surfaces and personnel must be properly grounded or
equipment damage may result.
ATTENTION
Le relais contient des pièces sensibles aux décharges électrostatiques.
Quand on travaille sur le relais avec les panneaux avant ou du dessus
enlevés, toutes les surfaces et le personnel doivent être mis à la terre
convenablement pour éviter les dommages à l'équipement.
WARNING
Have only qualified personnel service this equipment. If you are
not qualified to service this equipment, you can injure yourself or
others, or cause equipment damage.
AVERTISSEMENT
Seules des personnes qualifiées peuvent travailler sur cet appareil. Si vous
n’êtes pas qualifiés pour ce travail, vous pourriez vous blesser avec
d’autres personnes ou endommager l’équipement.