Schweitzer Engineering Laboratories SEL-311A User manual

SEL-311A
PROTECTION AND AUTOMATION SYSTEM
INSTRUCTION MANUAL
SCHWEITZER ENGINEERING LABORATORIES
2350 NE HOPKINS COURT
PULLMAN, WA USA 99163-5603
TEL: [phone] FAX: [phone]

!
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 (DES).
Quand on travaille sur le relais avec le panneau
avant ou du dessus enlevé, les surfaces de travail
et le personnel doivent être mis à la terre
convenablement pour éviter les dommages à
l'équipement.
!
CAUTION: There is danger of explosion if the
battery is incorrectly replaced. Replace only with
Ray-O-Vac®no. BR2335 or equivalent
recommended by manufacturer. Dispose of used
batteries according to the manufacturer’s
instructions.
!
ATTENTION: Il y a un danger d’explosion si la
pile électrique n’est pas correctement remplacée.
Utiliser exclusivement Ray-O-Vac®No. BR2335
ou un équivalent recommandé par le fabricant. Se
débarrasser des piles usagées suivant les
instructions du fabricant.
!
WARNING: This device is shipped with default
passwords. Default passwords should be changed
to private passwords at installation. Failure to
change each default password to a private
password may allow unauthorized access. SEL
shall not be responsible for any damage resulting
from unauthorized access.
!
AVERTISSEMENT: Cet équipement est
expédié avec des mots de passe par défaut. A
l'installation, les mots de passe par défaut devront
être changés pour des mots de passe confidentiels.
Dans le cas contraire, un accès non-autorisé à
l'équipement pourrait être possible. SEL décline
toute responsabilité pour tout dommage résultant
de cet accès non-autorisé.
!
DANGER: Removal of this front panel exposes
circuitry which may cause electrical shock that
can result in injury or death.
!
DANGER:Le retrait du panneau avant expose à
la circuiterie qui pourrait être la source de chocs
électriques pouvant entraîner des blessures ou la
mort.
The software (firmware), schematic drawings, relay commands, and relay messages are copyright protected by the United States Copyright Law and
International Treaty provisions. ll rights are reserved.
You may not copy, alter, disassemble, or reverse-engineer the software. You may not provide the software to any third party.
ll brand or product names appearing in this document are the trademark or registered trademark of their respective holders.
Schweitzer Engineering Laboratories, SELOGIC, Connectorized, Job Done, SEL-PROFILE, CSELER TOR, and are registered trademarks of Schweitzer
Engineering Laboratories, Inc.
The English language manual is the only approved SEL manual.
Copyright © SEL 2000, 2001 ( ll rights reserved) Printed in US .
This product is covered by U.S. Patent Numbers: 5,041,737; 5,208,545; 5,317,472; 5,325,061; 5,349,490; 5,365,396; 5,367,426; 5,479,315; 5,515,227;
5,652,688; 5,694,281; 5,703,745; 5,790,418; 5,793,750; 5,883,578; 6,011,480; 6,028,754; and U.S. Patent(s) Pending, and Foreign Patent(s) Issued and
Pending.
This product is covered by the standard SEL 10-year warranty. For warranty details, visit www.selinc.com or contact your customer service
representative. PM311 -01

Date Code 20011205 Manual Change Information i
SEL-311A Instruction Manual
MANUAL CHANGE INFORMATION
The date code at the bottom of each page of this manual reflects the creation or revision date.
Date codes are changed only on pages that have been revised and any following pages affected
by the revisions (i.e., pagination). If significant revisions are made to a section, the date code on
all pages of the section will be changed to reflect the revision date.
Each time revisions are made, both the main table of contents and the affected individual section
table of contents are regenerated and the date code is changed to reflect the revision date.
Changes in this manual to date are summarized below (most recent revisions listed at top).
Revision
Date Summary of Revisions
The Manual Change Information section has been created to begin a record of revisions to
this manual. All changes will be recorded in this Summary of Revisions table.
20011205 Reissued entire manual to reflect the following changes:
Updated Section 2 and Section 3 figure references throughout the manual.
Section 1:
- Added 220 V control input voltage specification to General Specifications.
- Updated Terminal Connections information in General Specifications.
Section 2:
- Added Connectorized®rear-panel drawings.
Section 3:
- Added Ground and Phase Distance Speed Curves drawing.
- Added Distance Element Operating Time Curves at Nominal Frequency
section.
Section 7:
- Updated Input Debounce Timers section.
- Added Displaying Time-Overcurrent Elements on the Rotating Default
Display and following sections.
- Added descriptions of the ELAT, ESV, and EDP settings.
Section 8:
- Modified breaker reset options to include the internal and external trips and
currents in the Via Serial Port subsection in the View or Reset Breaker
Monitor Information section.
Section 9:
- Updated Event Report Parameters section in the Settings Sheets.
- Updated Optoisolated Input Timers section in the Settings Sheets.
- Added ELAT and EDP settings in the Other Enable Settings section in the
Settings Sheets.

ii Manual Change Information Date Code 20011205
SEL-311A Instruction Manual
Revision
Date Summary of Revisions
Section 10:
- Added STA C command information to Access Level 2 Commands in the
Command Summary.
Section 12:
- Added 180-cycle event report information. Also updated the number of event
reports that are maintained.
- Updated Output, Input, and Protection, and Control Element Event Report
Columns table.
Appendix A:
- Updated firmware.
Appendix D:
- Updated A5C0 Relay Definition Block section.
- Updated information in ID Message and DNA Message sections.
Appendix G:
- Updated SEL-311A-Wye DNP Data Map table.
Appendix I:
- Added Appendix I: Unsolicited Fast SER Protocol.
20010625 Appendix A:
- Modified SEL-311 Relays to record consecutive event reports.
- Modified the SUM command so that the Breaker Status reports the status
from the last row of the event report.
20010518 Appendix A:
- Improved overflow supervision for distance elements.
20010124 Reissued entire manual to reflect the following changes:
- Added cautions, warnings, and dangers in English and French to the reverse
of the title page.
Section 1:
- Updated Relay Specifications format.
- Added information on Tightening Torque in General Specifications.
- Updated Power Supply information to include medium range Power Supply
Specification.
- Updated Output Contacts information.
Section 2:
- Added Product Safety Compliance paragraph.
- Added Danger statement to Accessing the Relay Circuit Boards subsection.
- Added Caution statement to the Clock Battery subsection.

Date Code 20011205 Manual Change Information iii
SEL-311A Instruction Manual
Revision
Date Summary of Revisions
Section 8:
- Removed reference to NDEMP in the Demand Meter Settings subsection.
Section 9 (Settings Sheets):
- Updated formatting.
Section 10:
- Added Warning statement to change default passwords to private passwords
at relay installation.
Appendix G:
- Updated first row of Table G.3.
- Correctly identify binary output point 23 in the Relay Summary Event Data
subsection.
20000911 New Manual Release.

Date Code 20011205 Table of Contents i
SEL-311A Instruction Manual
SEL-311A INSTRUCTION MANUAL
TABLE OF CONTENTS
SECTION 1: INTRODUCTION AND SPECIFICATIONS
SECTION 2: INSTALLATION
SECTION 3: DISTANCE AND OVERCURRENT ELEMENTS
SECTION 4: LOSS-OF-POTENTIAL, CCVT TRANSIENT DETECTION,
LOAD-ENCROACHMENT, AND DIRECTIONAL ELEMENT
LOGIC
SECTION 5: TRIP AND TARGET LOGIC
SECTION 6: CLOSE LOGIC
SECTION 7: INPUTS, OUTPUTS, TIMERS, AND OTHER CONTROL LOGIC
SECTION : BREAKER MONITOR AND METERING FUNCTIONS
SECTION 9: SETTING THE RELAY
SECTION 10: SERIAL PORT COMMUNICATIONS AND COMMANDS
SECTION 11: FRONT-PANEL INTERFACE
SECTION 12: STANDARD EVENT REPORTS AND SER
SECTION 13: TESTING AND TROUBLESHOOTING
SECTION 14: APPLICATION SETTINGS FOR SEL-2PG10 RELAYS
SECTION 15: APPENDICES
Appendix A: Firmware Versions
Appendix B: Firmware Upgrade Instructions
Appendix C: SEL Distributed Port Switch Protocol
Appendix D: Configuration, Fast Meter, and Fast Operate
Commands
Appendix E: Compressed ASCII Commands
Appendix F: Setting SELOGIC® Control Equations
Appendix G: Distributed Network Protocol (DNP) 3.00
Appendix H: MIRRORED BITS™ Communications
Appendix I: Unsolicited Fast SER Protocol
SEL-311A RELAY COMMAND SUMMARY

Date Code 20011205 Introduction and Specifications i
SEL-311A Instruction Manual
TABLE OF CONTENTS
SECTION 1: INTRODUCTION AND SPECIFICATIONS ........................1-1
SEL-311A Relay Models.............................................................................................................. 1-1
Instruction Manual Sections Overview ........................................................................................1-1
Applications..................................................................................................................................1-4
AC/DC Connections .....................................................................................................................1-4
Communications Connections ......................................................................................................1-6
Relay Specifications .....................................................................................................................1-8
General Specifications ..........................................................................................................1-8
Processing Specifications ...................................................................................................1-10
Relay Element Settings Ranges and Accuracies.................................................................1-11
FIGURES
Figure 1.1: SEL-311A Relay Transmission Line Protection with MIRRORED BITS™........................... 1-4
Figure 1.2: SEL-311A Relay Inputs, Outputs, and Communications..................................................... 1-5
Figure 1.3: SEL-311A Relay Communications Connections Examples................................................. 1-6
Figure 1.4: SEL-311A Relay Communications Connections Examples (Continued) ............................1-7

Date Code 20011205 Introduction and Specifications 1-1
SEL-311A Instruction Manual
SECTION 1: INTRODUCTION AND SPECIFICATIONS
This section includes the following overviews of the SEL-311A Relay:
SEL-311A Relay Models
Instruction Manual Sections
Applications
AC/DC Connections
Communications Connections
General Specifications
SEL-311A RELAY MODELS
This instruction manual covers SEL-311A Relay models.
A vertical SEL-311A Relay is available. The vertical relays use the same rear panels as the
horizontal models. See Figure 2.2 through Figure 2.4.
INSTRUCTION MANUAL SECTIONS OVERVIEW
The following is an overview of the other sections in this instruction manual:
Section 2: Installation describes mounting and wiring the SEL-311A Relay, application
connections, and the operation of circuit board jumpers. Figure 2.2 through Figure 2.4 show the
SEL-311A Relay front and rear panels.
Section 3: Distance and Overcurrent Elements describes the operation of:
· Phase and ground distance elements (phase mho and ground mho)
· Instantaneous/definite-time overcurrent elements (phase and residual ground)
· Time-overcurrent elements (phase and residual ground)
Section 4: Loss-of-Potential, CCVT Transient Detection, Load-Encroachment, and
Directional Element Logic describes the operation of:
· Loss-of-potential logic and its effect on distance and directional elements
· CCVT transient detection logic and its effect on Zone 1 distance elements
· Load-encroachment logic and its application to phase distance and overcurrent
elements
· Voltage-polarized and current-polarized directional elements
· Best Choice Ground Directional™logic and automatic settings

1-2 Introduction and Specifications Date Code 20011205
SEL-311A Instruction Manual
Section 5: Trip and Target Logic describes the operation of:
· General trip logic
· Switch-Onto-Fault trip logic
· Front-panel target LEDs
Most tripping applications (not requiring switch-onto-fault tripping) require only
SELOGIC®control equation trip setting TR and unlatch trip setting ULTR in the general
trip logic (see Figure 5.1).
Section 6: Close Logic describes the close logic operation for:
· Close conditions (e.g., manual close initiation via serial port or optoisolated inputs)
Section 7: Inputs, Outputs, Timers, and Other Control Logic describes the operation of:
· Optoisolated inputs IN101 through IN106
· Local control switches (local bit outputs LB1 through LB16)
· Remote control switches (remote bit outputs RB1 through RB16)
· Latch control switches (latch bit outputs LT1 through LT16)
· Multiple setting groups (six available)
· Programmable timers (timer outputs SV1T through SV16T)
· Output contacts OUT101 through OUT107 and ALARM
· Rotating default displays and display points
Section 8: Breaker Monitor and Metering Functions describes the operation of:
· Breaker monitor
· Station dc monitor
· Demand and maximum/minimum metering
Section 9: Setting the Relay explains how to enter settings and also contains the following
setting reference information:
· Time-overcurrent curves (5 US and 5 IEC curves)
· Relay Word bit table and definitions (Relay Word bits are used in SELOGIC control
equation settings)
· Settings Sheets for general relay, SELOGIC control equation, global, SER, text
label, and serial port settings
The Settings Sheets can be photocopied and filled out to set the SEL-311A Relay.
Note that these sheets correspond to the serial port SET commands listed in
Table 9.1.
See Section 14 for a description of Application Settings (APP = 2PG10)

Date Code 20011205 Introduction and Specifications 1-3
SEL-311A Instruction Manual
Section 10: Serial Port Communications and Commands describes:
· Serial port connector pinout/terminal functions
· Communications cables
· Communications protocol
· Serial port commands
See SHO Command (Show/View Settings) in Section 10 for a list of the
SEL-311A factory default relay settings.
Section 11: Front-Panel Interface describes the front-panel operation of:
· Pushbuttons and correspondence to serial port commands
· Local control switches (local bit outputs LB1 through LB16)
· Rotating default displays and display points
Section 12: Standard Event Reports and SER describes:
· Standard 15-, 30-, 60-, and 180-cycle event reports
· Event summaries
· Sequential events recorder (SER) report
Section 13: Testing and Troubleshooting describes:
· General testing philosophy, methods, and tools
· Relay self-tests and troubleshooting
Section 14: Application Settings for SEL-2PG10 Relays
· Conversion guide for the SEL-2PG10 relays
· Settings Sheets for the SEL-2PG10 relays
Section 15: Appendices contains the following appendices:
· Appendix A: Firmware Versions
· Appendix B: Firmware Upgrade Instructions
· Appendix C: SEL Distributed Port Switch Protocol
· Appendix D: Configuration, Fast Meter, and Fast Operate Commands
· Appendix E: Compressed ASCII Commands
· Appendix F: Setting SELOGIC®Control Equations
· Appendix G: Distributed Network Protocol (DNP) 3.00
· Appendix H: MIRRORED BITS™
· Appendix I: SEL-311A Unsolicited SER Protocol
SEL-311A Relay Command Summary briefly describes the serial port commands that are
described in detail in Section 10: Serial Port Communications and Commands.

1-4 Introduction and Specifications Date Code 20011205
SEL-311A Instruction Manual
APPLICATIONS
SEL-311A SEL-311A
DWG: M311A001
M IRRORED B ITS
TM
Figure 1.1: SEL-311A Relay Transmission Line Protection with MIRRORED BITS
AC/DC CONNECTIONS
See General Specifications later in this section and Section 2: Installation for more information
on hardware and connections.

Date Code 20011205 Introduction and Specifications 1-5
SEL-311A Instruction Manual
Dual Terminal Labels:
For installation in systems
with drawings designed for
SEL-221 Relays, use the
numeric terminal labels.
Section 14 describes how to
easily set the SEL-311A to
emulate the popular
SEL-221 relays.
For installation in systems
with drawings designed for
SEL-311A Relays, use the
alphanumeric terminal
labels.
See Figure 2.2 through
Figure 2.4 for rear-panel
drawings.
Note: Terminals 41 and 42
are not used in the
SEL-311A.
Figure 1.2: SEL-311A Relay Inputs, Outputs, and Communications

1-6 Introduction and Specifications Date Code 20011205
SEL-311A Instruction Manual
COMMUNICATIONS CONNECTIONS
See Port Connector and Communications Cables in Section 10: Serial Port Communications
and Commands for more communications connection information.
Figure 1.3: SEL-311A Relay Communications Connections Examples

Date Code 20011205 Introduction and Specifications 1-
SEL-311A Instruction Manual
SEL-2800
SEL-2800
IN101 Relay
SEL-2800
SEL-2800
SEL-2505
Transf rmer
Alarms
SEL-2800
DWG: M311A004
SEL-2100
Pr tecti n L gic
Pr cess r
SEL-311A Relay SEL-311A Relay
Figure 1.4: SEL-311A Relay Communications Connections Examples (Continued)

1-8 Introduction and Specifications Date Code 20011205
SEL-311A Instruction Manual
RELAY SPECIFICATIONS
Important: Do not use the following specification information to order an SEL-311A Relay.
Refer to the actual ordering information sheets.
Genera Specifications
Terminal Connections: Rear Screw-Terminal Tightening Torque
Terminal Block
Minimum: 8-in-lb (0.9 Nm)
Maximum: 12-in-lb (1.4 Nm)
Connectorized®
Minimum: 4.4-in-lb (0.5 Nm)
Maximum: 8.8-in-lb (1 Nm)
Terminals or stranded copper wire. Ring terminals are recommended.
Minimum temperature rating of 105°C.
AC Current Inputs: 5 A nominal
15 A continuous, linear to 100 A symmetrical.
500 A for 1 second.
1250 A for 1 cycle.
Burden: 0.27 VA @ 5 A
2.51 VA @ 15 A
1 A nominal
3 A continuous, linear to 20 A symmetrical.
100 A for 1 second.
250 A for 1 cycle.
Burden: 0.13 VA @ 1 A
1.31 VA @ 3 A
AC Voltage Inputs: 67 VL-N, three-phase four-wire connection.
150 VL-N continuous (connect any voltage up to 150 Vac).
365 Vac for 10 seconds.
Burden: 0.13 VA @ 67 V
0.45 VA @ 120 V.
Power Supply: Rated: 125/250 Vdc or Vac
Range: 85–350 Vdc or 85–264 Vac
Burden: < 25 W
Rated: 48/125 Vdc or 125 Vac
Range: 38–200 Vdc or 85–140 Vac
Burden: < 25 W
Rated: 24/48 Vdc
Range: 18–60 Vdc polarity dependent
Burden: < 25 W

Date Code 20011205 Introduction and Specifications 1-9
SEL-311A Instruction Manual
Output Contacts: Standard
30 A make
6 A continuous carry at 70°C; 4 A continuous carry at 85°C
50 A for one second
MOV protected: 270 Vac, 360 Vdc, 40 J; Pickup time: < 5 ms.
Breaking Capacity (10,000 operations):
48 V 0.5 A L/R = 40 ms
125 V 0.3 A L/R = 40 ms
250 V 0.2 A L/R = 40 ms
Cyclic Capacity (2.5 cycles/second):
48 V 0.5 A L/R = 40 ms
125 V 0.3 A L/R = 40 ms
250 V 0.2 A L/R = 40 ms
Note: Make per IEEE C37.90–1989; Breaking and Cyclic Capacity
per IEC 60255-23–1994.
Optoisolated Input Ratings: 250 Vdc: Pickup 200–300 Vdc; dropout 150 Vdc
220 Vdc: Pickup 176–264 Vdc; dropout 132 Vdc
125 Vdc: Pickup 105–150 Vdc; dropout 75 Vdc
110 Vdc: Pickup 88–132 Vdc; dropout 66 Vdc
48 Vdc: Pickup 38.4–60 Vdc; dropout 28.8 Vdc
24 Vdc: Pickup 15–30 Vdc
Note: 24, 48, 125, 220, and 250 Vdc optoisolated inputs draw
approximately 5 mA of current; 110 Vdc inputs draw
approximately 8 mA of current. All current ratings are at
nominal input voltages.
Note: 220 Vdc optoisolated inputs are not available in the
Connectorized version of the relay.
Routine Dielectric Test: Voltage/Current inputs: 2500 Vac for 10 s
Power supply,
optoisolated inputs,
and output contacts: 3000 Vdc for 10 s
The following IEC 60255-5 Dielectric Tests–1977 are performed on
all units with the CE mark:
2500 Vac for 10 seconds on analog inputs
3100 Vdc for 10 seconds on power supply, optoisolated inputs,
and output contacts
Frequency and Rotation: System Frequency: 50 or 60 Hz
Phase Rotation: ABC or ACB
Frequency
Tracking Range: 40.1–65 Hz
Note: V
Arequired for frequency tracking.
Communications Ports: EIA-232: 1 Front and 2 Rear
EIA-485: 1 Rear, 2100 Vdc isolation
Baud Rate: 300–38400
Time-Code Input: Relay accepts demodulated IRIG-B time-code input at Port 2.
Relay time is synchronized to within ±5 ms of time-source input.
Operating Temperature Range: -40°to +85°C (-40°to +185°F)
Note: LCD contrast impaired for temperatures below -20°C.

1-10 Introduction and Specifications Date Code 20011205
SEL-311A Instruction Manual
Relay Weight: 2U Rack unit: 13 lbs. (5.92 kg)
Type Tests:
Electromagnetic Compatibility Immunity
Electrostatic Discharge: IEC 60255-22-2–1996, Severity Level 4
(8000 V contact, 15,000 V air)
Fast Transient
Disturbance: IEC 60255-22-4–1992;
IEC 61000-4-4–1995, Severity Level 4
(4000 V on power supply,
2000 V on inputs and outputs)
Radiated Radio
Frequency: IEC 60255-22-3–1989;
IEEE C37.90.2–1995, 35 V/m
Surge Withstand: IEEE C37.90.1–1989, 3000 V oscillatory,
5000 V transient
1 MHz Burst
Disturbance: IEC 60255-22-1–1988, Severity Level 3
(2500 V common and 1000 V differential
mode)
Environmental
Cold: IEC 60068-2-1–1990, Test Ad; 16 hr.
@ –40°
Dry Heat: IEC 60068-2-2–1974, Test Bd; 16 hr.
@ +85°
Damp Heat, Cyclic: IEC 60068-2-30–1980, Test Db; 55°C,
6 cycles, 95% humidity
Object Penetration: IEC 60529–1989, IP30, IP54
Vibration: IEC 60255-21-1–1988, Class 1
IEC 60255-21-2–1988, Class 1
IEC 60255-21-3–1993, Class 2
Safety
Impulse: IEC 60255-5–1977, 0.5 J, 5000 V
Certifications: ISO: Relay is designed and manufactured using
ISO 9001 certified quality program.
UL Listed, CSA Certified, CE Mark.
Processing Specifications
AC Voltage and Current Inputs 16 samples per power system cycle, 3 dB low-pass filter cut-off
frequency of 560 Hz.
Digital Filtering One cycle cosine after low-pass analog filtering.
Net filtering (analog plus digital) rejects dc and all harmonics greater
than the fundamental.
Protection and Control
Processing 4 times per power system cycle.