Schweitzer Engineering Laboratories SEL-267D Instruction Manual
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Schweitzer Engineering Laboratories SEL-267D Instruction Manual

Schweitzer Engineering Laboratories SEL-267D Instruction Manual

Phase and ground directional overcurrent relay with recloser and fault locator
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DIRECTIONAL OVERCURRENT RELAY
WITH RECLOSER AND FAULT LOCATOR
SCHWEITZER ENGINEERING LABORATORIES
2350 NE HOPKINS COURT
PULLMAN, WA 99163-5603
TEL: (509) 332-1890
SEL-267D
SEL-167D
PHASE AND GROUND
INSTRUCTION MANUAL
F A X : ( 5 0 9 ) 3 3 2 - 7 9 9 0

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  • Page 1 PHASE AND GROUND DIRECTIONAL OVERCURRENT RELAY WITH RECLOSER AND FAULT LOCATOR INSTRUCTION MANUAL SCHWEITZER ENGINEERING LABORATORIES 2350 NE HOPKINS COURT PULLMAN, WA 99163-5603 TEL: (509) 332-1890 F A X : ( 5 0 9 ) 3 3 2 - 7 9 9 0...
  • Page 2 Customer P.O.#: Book Assembled and Checked by Date Assembled and Checked The software (firmware), schematic drawings, relay commands, and relay messages are copyright protected by the United States Copyright Law and International Treaty provisions. All rights are reserved. You may not copy, alter, disassemble, or reverse-engineer the software. You may not provide the software to any third party.
  • Page 4 Regardless of whether the upgrade policy is purchased, SEL will make reasonable efforts to notify all customesrs of all available upgrades. SCHWEITZER ENGINEERING LABORATORIES 2350 NE Hopkins Court • Pullman, WA • 99163-5603 • USA Phone: (509) 332-1890 • Fax: (509) 332-7990...
  • Page 5 All brand or product names appearing in this document are the trademark or registered trademark of their respective holders. Schweitzer Engineering Laboratories, SEL , Connectorized, and are registered trademarks of Schweitzer Engineering Laboratories. OGIC Copyright © SEL 1996, 1997, 1998, 1999, 2000 (All rights reserved) Printed in USA.
  • Page 7 SEL RELAY INSTRUCTION MANUAL ADDENDUM ACB PHASE ROTATION OPTION The SEL relay instruction manuals are written for standard ABC phase rotation applications. If your SEL relay is ordered with the ACB phase rotation option, references made in the instruction manual to voltage and current phase angle should be noted accordingly. The firmware identification number (FID) may be used to verify whether your relay was ordered with ABC or ACB rotation.

  • Page 12: Table Of Contents

    Time-Overcurrent Curve Equations ..................2-36 Logic Diagrams ........................2-31 COMMUNICATIONS Introduction ..........................3-1 Serial Port Connections and Configurations ................3-2 Communications Protocol......................3-2 Command Characteristics......................3-4 Command Descriptions ......................3-6 Command Summary......................3-23 Date Code 950829 Table of Contents SEL-267D Instruction Manual...
  • Page 13 Appendix A - Firmware Versions in this Manual ............. Appendix A-1 Appendix B - Parts Placement Diagram..............Appendix B-1 Appendix C - Onebus: Program to Compute Test Set Settings for Testing Distance Relays ..................Appendix C-1 Table of Contents Date Code 950829 SEL-267D Instruction Manual...
  • Page 14 Logic Diagrams ....................... 2- Figure 5.1: 9-Pin Connector Pin Number Convention ................. 5-3 Figure 5.2: SEL-267D External Ac Current and Voltage Connections ..........5-7 Figure 5.3: SEL-267D Dc External Connection Diagram (Typical) ............ 5-8 Figure 5.4: Communication and Clock Connections (One Unit at One Location) ......... 5-8 Figure 5.5: Communication and Clock Connections (Multiple Units at One Location)......
  • Page 15 INTRODUCTION TABLE OF CONTENTS Getting Started............................. 1-1 Overview ............................. 1-1 Basic Protective Capabilities ........................ 1-2 General Information ..........................1-3 Date Code 920320 Table of Contents SEL - 267D/167D Instruction Manual...

  • Page 16: Introduction

    The SEL-267D PHASE AND GROUND DIRECTIONAL OVERCURRENT RELAY WITH FAULT LOCATOR may be applied to protect transmission, subtransmission and distribution lines. The SEL-267D relay is intended for use on grounded systems with open-delta connected potential transformers. Use the SEL-267 relay where wye-connected potential transformers are applied.

  • Page 17: Basic Protective Capabilities

    BASIC PROTECTIVE CAPABILITIES The SEL-267D relay provides complete directional overcurrent protection for faults of all types. The demand ammeter, with its programmable threshold and time constant, offers overload protection and alarm functions. Analog inputs from current and voltage transformers are delivered to the protective relaying elements and saved for additional features, such as metering and fault locating.

  • Page 18: General Information

    The SEL-267D relay includes a fault locator which uses fault type, prefault, and fault condi- tions to provide an accurate estimate of fault location without the need for communications channels, or special instrument transformers, even during conditions of substantial load flow and fault resistance.
  • Page 19 This allows users to trigger the report from other equipment, such as oscillographic starting units or other relaying systems. The SEL-267D relay retains the twelve most recent event reports. A user may recall any of these reports on command.
  • Page 20 Figure 2.4: Time-Overcurrent Element Inverse Time Characteristic ..........2-28 Figure 2.5: Time-Overcurrent Element Very Inverse Time Characteristic........2-29 Figure 2.6: Time-Overcurrent Element Extremely Inverse Time Characteristic........ 2-30 Logic Diagrams ..........................2-31 Date Code 920320 Table of Contents SEL-267D/167D Instruction Manual...

  • Page 21: Specifications

    RFI Tests 450 MHz, randomly keyed on and off at a distance of 1 meter firom relay. 3.5" x 19" x 10.5" (8.89 cm x 48.2 cm x 26.7 cm) (H x W x D), SEL-267D Dimensions 5.25" x 19" x 13" (13.3 cm x 48.2 cm x 33.0 cm) (H x W x D), SEL-167D Unit Weight 16 pounds (7.3 kg), SEL-267D...
  • Page 22 12 most recent faults. The report may also be triggered by command or contact closure. When tripping occurs after the end of the event report, a second report is triggered at tripping. Specifications Date Code 920326 SEL-267D/167D Instruction Manual...

  • Page 23: Detailed Specifications

    Timers are provided for 50N1, 50N2, and 50N3: Zone 1 Timer: 0-60 cycles in 0.25 cycle steps Zone 2 Timer: 0-2000 cycles in 0.25 cycle steps Zone 3 Timer: 0-2000 cycles in 0.25 cycle steps Specifications Date Code 920326 SEL-267D/167D Instruction Manual...
  • Page 24 Timer ranges: 0 - 10,000 cycles in quarter cycle steps. A setting of 0 disables that shot and successive shots. 79RS reset interval: Timer range: 60 - 8,000 cycles in quarter cycle steps Specifications Date Code 920326 SEL-267D/167D Instruction Manual...

  • Page 25: Hardware Description

    The relay includes an input for time code which allows users to synchronize the internal time clock with an external source of time code. Figure 2.1: Hardware Block Diagram Specifications Date Code 920326 SEL-267D/167D Instruction Manual...

  • Page 26: Signal Processing

    INPUTS AND OUTPUTS Serial Interfaces The SEL-267D relay is equipped with two EIA RS-232-C serial communication ports. PORT 2 has 9-pin connectors on both the front and rear panels, designated PORT 2F and PORT 2R, respectively.

  • Page 27: Table 2.2: Input Parameters

    Table 2.2: Input Parameters Logic Input Rating Contact Input Range 10 - 30 Vdc 24 Vdc 48 Vdc 25 - 60 Vdc 125 Vdc 60 - 200 Vdc 250 Vdc 200 - 280 Vdc Date Code 920326 Specifications SEL-267D/167D Instruction Manual...
  • Page 28 External Trigger for Event Report (ET) An event report is triggered whenever the external trigger input is asserted. Asserting this input does not influence the protective functions in any way. Specifications Date Code 920326 SEL-267D/167D Instruction Manual...

  • Page 29: Table 2.3: Relay Outputs

    This output closes for reclose operations, assertion of the DC input, and in response to the CLOSE command. It opens when the 52A input is asserted or after the reclosing relay reset interval, whichever occurs first. Specifications Date Code 940208 SEL-267D/167D Instruction Manual...

  • Page 30: Definition Of Logic Variables

    The rating of the input current transformers in the relay is 5 amperes nominal, 15 amperes continuous, and 500 amperes for one second. DEFINITION OF LOGIC VARIABLES The output relay states of the SEL-267D relay depend on the following: Relay elements Contact-monitoring inputs...

  • Page 31: Logic Description

    Reclosing relay first open interval expired 79OI1 (79OI1 setting) Reclosing relay second open interval expired 79OI2 (79OI2 setting) Reclosing relay third open interval expired 79OI3 (79OI3 setting) 79RS Reclosing relay reset interval timer expired (79RS setting) Specifications Date Code 920326 2-11 SEL-267D/167D Instruction Manual...
  • Page 32 Circuit breaker monitor External trigger for event report Contact Outputs TRIP Circuit breaker trip CLOSE Circuit breaker close Programmable output 1 Programmable output 2 Programmable output 3 Programmable output 4 ALARM System alarm 2-12 Specifications Date Code 920326 SEL-267D/167D Instruction Manual...

  • Page 33: Intermediate Logic

    Z2PT = 67P2 * Z2DP Zone 1 timeout-phase Z1PT = 67P1* Z1DP Zone 3 timeout-ground Z3GT = 67N3 * Z3DG Zone 2 timeout-ground Z2GT = 67N2 * Z2DG Zone 1 timeout-ground Z1GT = 67N1 * Z1DG Specifications 2-13 Date Code 920326 SEL-267D/167D Instruction Manual...

  • Page 34: Relay Word

    Table 2.5: Relay Word Bit Summary, on the following page, explains the meaning of each bit in the Relay Word. The use of the Relay Word and programmable masks provides application flexibility without rewiring panels or changing jumpers on circuit boards. 2-14 Specifications Date Code 940512 SEL-267D/167D Instruction Manual...

  • Page 35: Output Equations

    The logic for controlling the TRIP, A1, A2, A3, and A4 output relays is programmable for flexibility and testing. The logic is programmed by setting masks for various conditions applied to the general Relay Word. 2-15 Specifications Date Code 940512 SEL-267D/167D Instruction Manual...

  • Page 36: Figure 2.2: Programmable Trip Logic Diagram

    Al = R * MA1 A2 = R * MA2 A3 = R * MA3 A4 = R * MA4 The "*" symbol indicates logical " and", while the "+" indicates logical "or". 2-16 Specifications Date Code 920326 SEL-267D/167D Instruction Manual...

  • Page 37: Reclosing Relay

    The three open intervals and the reset timer are individually settable through the SET command. To provide flexibility in applying the SEL-267D relay to various reclosing schemes, the conditions for reclose initiation and cancellation are selected similarly to the output relay...

  • Page 38: Self Tests

    + 5 V +5.3 V +4.7 V +5.4 V +4.6 V + 1 5 V +15.8 V + 14.2 V +16.2 V +13.8 V -15 V -15.8 V -14.2 V -16.2 V -13.8 V 2-18 Specifications Date Code 920326 SEL-267D/167D Instruction Manual...
  • Page 39 The relay stores two images of the system settings in nonvolatile memory. These are com- pared when the relay is initially set and periodically thereafter. If the images disagree, the setting test fails and the relay disables all protective and control functions. It transmits the Specifications 2-19 Date Code 920326 SEL-267D/167D Instruction Manual...

  • Page 40: Setting Procedure

    SETTING PROCEDURE You may enter the settings for the SEL-267D relay with the SET and LOGIC commands via the serial interfaces. The settings are stored in nonvolatile memory, so they are retained when the power is off.

  • Page 41: Event Report

    EVENT REPORT The SEL-267D relay records an eleven cycle event report following any of these elements picking up: 67Nl 67Pl 67N2 67P2 67N3 67P3 Event reports are also recorded due to assertion of the following inputs and execution of the...
  • Page 42 "TRIP" for reports triggered by the assertion of the "TRIP" output contact. The actual fault location algorithm is composed of two steps. First the fault type must be determined, and then the location calculated. Specifications Date Code 920326 2-22 SEL-267D/167D Instruction Manual...
  • Page 43 Using both prefault and fault data, it compensates for the errors introduced by fault resistance in the presence of load flow. On the other hand, if no prefault data are provided by the event record, the SEL-267D relay gives a location based on a simple reactance measurement.

  • Page 44: Directional Elements

    DIRECTIONAL ELEMENTS The SEL-267D relay contains three directional elements, applied as shown below: Criterion Directional Element Fault Type...

  • Page 45: Time-Overcurrent Elements And Curves

    51N or maximum phase current for the 51P, adjusted by the pickup setting for the appropriate element. The time dial setting determines the limit the recursive sum must reach for a trip. Specifications Date Code 920326 2-25 SEL-267D/167D Instruction Manual...

  • Page 46: Time-Overcurrent Curve Equations

    = operating time in seconds, TD = time dial setting, M = multiples of pickup. Curve 1 -- Moderately Inverse Curve 2 -- Inverse Curve 3 -- Very Inverse Curve 4 -- Extremely Inverse 2-26 Specifications Date Code 920326 SEL-267D/167D Instruction Manual...
  • Page 47 Figure 2.3: Time-Overcurrent Element Moderately Inverse Time Characteristic (Curve 1) Date Code 920326 Specifications 2-27 SEL-267D/167D Instruction Manual...
  • Page 48 Multiples of Pickup Figure 2.4: Time-Overcurrent Element Inverse Time Characteristic (Curve 2) 2-28 Specifications Date Code 920326 SEL-267D/167D Instruction Manual...
  • Page 49 Multiples of Pickup Figure 2.5: Time-Overcurrent Element Very Inverse Time Characteristic (Curve 3) Date Code 920326 Specifications 2-29 SEL-267D/167D Instruction Manual...
  • Page 50 Multiples of Pickup Figure 2.6: Time-Overcurrent Element Extremely Inverse Time Characteristic (Curve 4) 2-30 Specifications Date Code 920326 SEL-267D/167D Instruction Manual...

  • Page 51: Logic Diagrams

    LOGIC DIAGRAMS Specifications Date Code 920326 2-31 SEL-267D/167D Instruction Manual...
  • Page 52 Date Code 920326 Specifications 2-32 SEL-267D/167D Instruction Manual...
  • Page 53 Specifications Date Code 920326 2-33 SEL-267D/167D Instruction Manual...
  • Page 54 Date Code 920326 Specifications 2-34 SEL-267D/167D Instruction Manual...
  • Page 55 COMMANDS AND SERIAL COMMUNICATIONS TABLE OF CONTENTS Introduction ............................3-1 Serial Port Connections and Configurations..................3-2 Communications Protocol........................3-2 Command Characteristics........................3-4 Command Descriptions ........................3-6 Command Summary......................... 3-23 TABLES Table 3.1: Hexadecimal/Binary Conversion .................. 3-13 Table 3.2: Target LED Assignment ..................... 3-15 Date Code 920320 Table of Contents SEL-221F/167D Instruction Manual...

  • Page 56: Introduction

    COMMANDS AND SERIAL COMMUNICATIONS INTRODUCTION The SEL-267D relay is set and operated via serial communications interfaces connected to a terminal and/or a modem or the SEL Protective Relay Terminal Unit. Communications serve these purposes: The relay receives and executes relay/fault locating settings.

  • Page 57: Serial Port Connections And Configurations

    SERIAL PORT CONNECTIONS AND CONFIGURATIONS The SEL-267D relay is equipped with two EIA RS-232-C serial communications ports. PORT 2 has 9-pin connectors on both the front and rear panels, designated PORT 2F and PORT 2R, respectively. PORT 2R, located on the relay rear panel, is typically used with an SEL-DTA Display/- Transducer Adapter, SEL-RD Relay Display, or local printer.
  • Page 58 <command><CR> <command><CRLF> Thus, a command transmitted to the SEL-267D relay should consist of the command name, followed by either a carriage return or a carriage return and a line feed. When entering commands, you may truncate to the first three characters. Upper or lower cases are irrelevant for all command entries except passwords.

  • Page 59: Command Characteristics

    PORT 2 designated as the automatic port; you may use the SET command and the AUTO setting to select either PORT 1, 2, or both for the transmission of automatic responses from the SEL-267D relay (see SET command). Commands and Serial Communication...
  • Page 60 Commands consist of three or more characters; you may truncate commands to the first three characters to expedite entry. Upper or lower case characters may be used without distinction, except in passwords. Date Code 920326 Commands and Serial Communication SEL-267D/167D Instruction Manual...

  • Page 61: Command Descriptions

    Level 2 password. Enter the second password in the same manner as the first and press <ENTER>. The factory set Level 2 password is TAIL, but should ultimately be changed by the end-user with the PASSWORD command. Commands and Serial Communication Date Code 920326 SEL-267D/167D Instruction Manual...
  • Page 62 When a fault causes a trip, the fault targets are shown as well. The relay and logic settings are displayed at the end of the report. Commands and Serial Communication Date Code 920326 SEL-267D/167D Instruction Manual...
  • Page 63 16th row of data in the report. All reports trigger at row 16. Thus, the duration of a long fault that triggers a report when the fault occurs and a second report when TRIP occurs is calculated using the difference between the two report times. Commands and Serial Communication Date Code 920326 SEL-267D/l67D Instruction Manual...
  • Page 64 "T". This aids in determining clearing times for faults which persist beyond the end of the first event report. For example, if the SEL-267D relay trips for a BG fault after completing the initial report, the second report shows "BGT" for TYPE.
  • Page 65 The TARGETS column shows fault targets for faults which cause a trip to occur. If no trip occurred for the fault or the event is not a fault, this column is blank. These targets are the same as SEL-267D relay front panel targets. IRIG The IRIG command directs the relay to read the demodulated IRIG-B time code input if present at J201 on the rear panel.
  • Page 66 Relay Targets (TAR 0). The terminal displays the relay I.D., date, and time. Use this command when you finish communicating with the SEL-267D relay to prevent unauthorized access. Note that control returns to Access Level 0 automatically after a settable interval of no activity.
  • Page 67 Row 4, of any column: Logic settings appear in hexadecimal format. The following table shows the equivalencies between hexadecimal (hex) and binary numbers to facilitate examination of the logic settings display. 3-12 Commands and Serial Communication Date Code 940512 SEL-267D/167D Instruction Manual...

  • Page 68: Table 3.1: Hexadecimal/Binary Conversion

    Table 3.1: Hexadecimal/Binary Conversion Hexadecimal Binary Hexadecimal Binary 1000 0000 1001 0001 1010 0010 1011 0011 1100 0100 1101 0101 1110 0110 1111 0111 For example, consider row 2 of mask MA1, which is set to 66 hex format. Using the table to convert 66 to binary: 66 - >...
  • Page 69 TARGETS n k This command selects the information displayed on the front-panel target LEDs and communi- cates the state of selected LEDs. 3-14 Commands and Serial Communication Date Code 920326 SEL-267D/167D Instruction Manual...

  • Page 70: Table 3.2: Target Led Assignment

    If a TRIP condition is present when you press the TARGET RESET button, the relay does not unlatch the TRIP outputs or clear the targets. Date Code 940512 Commands and Serial Communication 3-15 SEL-267D/167D Instruction Manual...
  • Page 71 23:30:00, enter: TIME 23 30 00 <ENTER> or TIME 23:30:00 <ENTER>, etc. A quartz crystal oscillator provides the time base for the internal clock. The SEL-267D relay time code input may be used to synchronize its clock to an external clock with a demodulated IRIG-B time code output.
  • Page 72 LOGIC n The logic command programs a series of masks used for controlling the outputs and reclosing operations of the SEL-267D relay. The parameter n specifies a mask to program and can be any of the following: - Mask for unconditional trip...
  • Page 73 If an error occurs during input of new data, the existing settings and question mark prompt are redisplayed to allow corrections. An example below shows the removal of the Z3PT bit from the MTU logic mask. 3-18 Commands and Serial Communication Date Code 920326 SEL-267D/167D Instruction Manual...
  • Page 74 The OPEN command aborts unless the remote open/close jumper (JMP104) is in place on the main circuit board. PASSWORD (1 or 2) password PASSWORD allows you to inspect or change existing passwords. To inspect passwords, type PASSWORD <ENTER> as the following example shows: Date Code 920326 Commands and Serial Communication 3-19 SEL-267D/167D Instruction Manual...
  • Page 75 <ENTER> to indicate no change. When all data are provided, the new settings are displayed and a prompt issued requesting your approval to enable the SEL-267D relay with the new settings. When you complete all desired setting changes, it is not necessary to scroll through the remaining settings.
  • Page 76 Use 2 to select an inverse curve Use 3 to select a very inverse curve Use 4 to select an extremely inverse curve Do you want residual time-overcurrent directional torque control? (Y or N) 51NTC 3-21 Commands and Serial Communication Date Code 920326 SEL-267D/167D Instruction Manual...
  • Page 77 The AUTO setting selects PORT 1, 2, or both of the two serial ports for automatically transmitted messages. The table below shows the effect of each possible setting: Auto Automatic Message Setting Destination Port 1 and 2 3-22 Commands and Serial Communication Date Code 920326 SEL-267D/167D Instruction Manual...

  • Page 78: Command Summary

    SEL-267D DIRECTIONAL OVERCURRENT COMMAND SUMMARY Access Level 0 ACCESS Answer password prompt (if password protection enabled) to gain access to Level 1. Three unsuccessful attempts pulses ALARM relay. Access Level 1 Answer password prompt (if password protection enabled) to gain access to Level 2.
  • Page 79 EXPLANATION OF EVENT REPORT Example 69 kV Line Date: 5/19/89 Time: 16:19:43.100 Currents and voltages are in primary Amps and kV. Rows are ¼ cycle apart. Time runs down page. Obtain phasor RMS value and angle using any entry as the Y-component, and the entry immediately underneath as the X-component.
  • Page 80 TABLE OF CONTENTS Introduction ............................4-1 Example Event Report ......................... 4-2 Interpretation of Voltage and Current Data ................... 4-3 Relay Elements Status Indicators......................4-5 Firmware Identification ........................4-7 Sample Event Report..........................4-8 Date Code 920320 Table of Contents SEL-267D/167D Instruction Manual...

  • Page 81: Introduction

    EVENT REPORTING INTRODUCTION The SEL-267D relay transmits a summary event report in response to several events and saves a full event report in its memory. The summary report includes the identifier message entered at the beginning of the setting procedure as well as date, time, and type of event. If the event is a fault, the report displays fault location in miles, secondary ohms, fault duration, and a maximum fault current measurement.

  • Page 82: Example Event Report

    BASIC program in the appendices and assume a source impedance of 0.2 of the total line impedance. For this test, the SEL-267D relay currents and voltages were provided by a Doble F-2000 Test System. A latching relay was used to simulate the circuit breaker action and to provide a contact whose state is sensed by the relay 52A input.

  • Page 83: Interpretation Of Voltage And Current Data

    INTERPRETATION OF VOLTAGE AND CURRENT DATA The voltage and current data provided in the event report are determined using the secondary quantities presented to the rear panel of the SEL-267D relay through the processing steps outlined below. The input analog signals are filtered by two-pole low-pass filters with cutoff frequencies of about 85 Hz.
  • Page 84 The indicated fault location is 9.02 miles The "actual" fault location is 9.00 miles. The error is 9.02 - 9.00, or 0.02 mile, less than 1.0% of the actual fault location for this example. Event Reporting Date Code 920326 SEL-267D/167D Instruction Manual...

  • Page 85: Relay Elements Status Indicators

    TP : TRIP output CL : CLOSE output A l : PROGRAMMABLE output #1 A2 : PROGRAMMABLE output #2 A3 : PROGRAMMABLE output #3 A4 : PROGRAMMABLE output #4 AL : ALARM output Event Reporting Date Code 920326 SEL-267D/167D Instruction Manual...
  • Page 86 They were picked up for a total of nineteen quarter cycles, or 5.75 cycles. This value is reported near the bottom of the report as: Duration: 5.75. For further description of information in this report, see the HISTORY command description. Event Reporting Date Code 920326 SEL-267D/167D Instruction Manual...

  • Page 87: Firmware Identification

    Please contact Schweitzer Engineering Laboratories, Inc. for the available versions of the SEL-267D relay. The version specifications are not intended for ordering purposes, but are intended as an identification of the software installed in a relay. Date Code 941214...

  • Page 88: Sample Event Report

    SAMPLE EVENT REPORT...
  • Page 89 FIGURES Figure 5.1: Nine Pin Connector Pin Number Convention ..........5-3 Figure 5.2: SEL-267D External Ac Current and Voltage Connections ......5-7 Figure 5.3: SEL-267D Dc External Connection Diagram (Typical)......... 5-8 Figure 5.4: Communication and Clock Connections (One Unit at One Location) .... 5-8 Figure 5.5: Communication and Clock Connections (Multiple Units at One Location) ..

  • Page 90: Mounting

    INSTALLATION MOUNTING The SEL-267D relay is designed for mounting by its front vertical flange in a 19-inch vertical relay rack. It may also be mounted semi-flush in a switchboard panel. Four #10 screws should be used for mounting. Front and rear panel drawings are included in the appendices.

  • Page 91: Control Circuits

    IRIG-B clock cable should also be routed away from control wiring and secondary circuits. JUMPER SELECTION All jumpers are located on the front edge of the main board. They are easily accessed by removing the top cover or pulling the drawout assembly out from the front. Installation Date Code 920326 SEL-267D Instruction Manual...

  • Page 92: Eia Rs-232-C And Irig-B Installation

    Contact the factory to request configuration sheets. Nine-Pin Connector Pin Number Convention (female chassis connector, as viewed from outside panel) Figure 5.1: Nine-Pin Connector Pin Number Convention Installation Date Code 920326 SEL-267D Instruction Manual...
  • Page 93 DTE = Data Terminal Equipment (Computer, Terminal, Printer, etc.) ** DCE = Data Communication Equipment (Modem, etc.) IRIG-B Input Description The port labelled J201/AUX INPUT is intended for the demodulated IRIG-B time code input. The pin definitions are shown below. Date Code 921207 Installation SEL-267D Instruction Manual...

  • Page 94: Table 5.1: Pin Definitions

    The IRIG-B serial format consists of a one second long, 100 pulse code divided into fields. The SEL-267D relay decodes the second, minute, hour and day fields. When IRIG-B data acquisition is activated either manually (with the IRIG command) or automatically, two consecutive frames are taken.

  • Page 95: Installation Checkout

    A portable terminal or computer is a convenient tool for providing local communications with the SEL-267D relay during checkout in the field. Such a device should be connected to PORT 2R or PORT 2F for checkout (with PORT 2 being designated as the automatic port using the AUTO setting in the SET command).

  • Page 96: Figure 5.2: Sel-267D External Ac Current And Voltage Connections

    (if used) should be tested. Be sure, in particular, that the automatic port is properly assigned, and that desired timeout intervals are selected for each port. Also, be sure to record password settings. Figure 5.2: SEL-267D External Ac Current and Voltage Connections Date Code 920326 Installation...

  • Page 97: Figure 5.3: Sel-267D Dc External Connection Diagram (Typical)

    Figure 5.3: SEL-267D Dc External Connection Diagram (Typical) PORT 1 MODEM TO TELEPHONE LINE RELAY LOCAL PORT 2R PRINTER OR 2F TIME CLOCK WITH A U X DEMODULATED PORT IRIG-B OUTPUT Figure 5.4: Communication and Clock Connections (One Unit at One Location)

  • Page 98: Figure 5.5: Communication And Clock Connections (Multiple Units At One Location)

    Figure 5.5: Communication and Clock Connections (Multiple Units at One Location) Figure 5.6: Communications Diagram for Connection to the SEL-DTA Date Code 920326 Installation SEL-267D Instruction Manual...

  • Page 99: Figure 5.7: Relay Dimensions, Panel Cutout, And Drill Plan

    ALL INSTRUMENTS MAY BE MOUNTED 17.30 HORIZONTALLY (AS SHOWN ABOVE) 8.90 8.60— 8.65 OR VERTICALLY 3.52— 3.60 3.56 ALL DIMENSIONS ARE IN INCHES 1.80 1.76— 1.78 Figure 5.7: Relay Dimensions, Panel Cutout, and Drill Plan 5-10 Installation Date Code 921207 SEL-267D Instruction Manual...

  • Page 100: Figure 5.8: Sel-267D Horizontal Front And Rear Panel Drawing

    Figure 5.8: SEL-267D Horizontal Front and Rear Panel Drawing Date Code 920326 Installation 5-11 SEL-267D Instruction Manual...
  • Page 101 MAINTENANCE & TESTING TABLE OF CONTENTS Initial Checkout ..........................6- l Functional Tests ..........................Calibration ............................ Troubleshooting Guide ........................Troubleshooting Table ........................TABLES Table 6.1: Fault Listings ......................Table 6.2: Fault Results........................ Date Code 920508 Table of Contents SEL-221F, -1 Instruction Manual...

  • Page 102: Initial Checkout

    MAINTENANCE AND TESTING INITIAL CHECKOUT The initial checkout of the SEL-267D relay is intended to familiarize you with the instrument and ensure that all functions are operational. Equipment Required The following equipment is necessary for initial checkout of the SEL-267D relay.
  • Page 103 The relay is shipped with demonstration settings which you may inspect using the SHOWSET command. Type SHOWSET and press <ENTER> to view these settings. The terminal should display the following: A complete description of the settings appears under the SET command. Maintenance and Testing Date Code 920326 SEL-267D/167D Instruction Manual...
  • Page 104 They were obtained assuming a source impedance of 0.2 times the total 60-mile line imped- ance and single-end feed for faults at the indicated locations and types. The appendices provide a BASIC program which you may find helpful when computing test set settings. Maintenance and Testing Date Code 940512 SEL-267D/167D Instruction Manual...

  • Page 105: Table 6.1: Fault Listings

    The output relay A1 at terminals is set to key permissive trip for any Zone 1 fault, direction- ally supervised Zone 2 fault, and time delayed trip element. From the table, output relay A1 should close for all faults. Maintenance and Testing Date Code 920326 SEL-267D/167D Instruction Manual...

  • Page 106: Functional Tests

    To make sure the relay accepts settings, perform the following steps: Gain Level 2 Access (see ACCESS and 2ACCESS commands). Type SET and press <ENTER>. Change one setting. For example, change the maximum torque angle (MTA) from 49° to 60°. Maintenance and Testing Date Code 920326 SEL-267D/167D Instruction Manual...
  • Page 107 IAB = IBC = ICA = 50 x 60 x 1.732 = 5.19 A The power reading should be: VAxIA + VBxIB + VCxIC = 27MW. The reactive power reading should be less than 0.24 MVAR. Maintenance and Testing Date Code 920326 SEL-267D/167D Instruction Manual...
  • Page 108 Apply current to one phase, and observe the pickup and dropout of each element. Check the pickup of residual time-overcurrent element (51NP) and phase time-overcurrent element (51PP) with the 51NP and 51PP bits in Relay Word Row #l. Type TARGET 1 Maintenance and Testing Date Code 920326 SEL-267D/167D Instruction Manual...
  • Page 109 Adjust the source to obtain an "ON" current of about 10 mA. Execute the IRIG command, and make sure the SEL-267D relay clock displays the correct date and time. For a convenient, inexpensive test of the IRIG-B port, use a recording of the IRIG-B Note: signal passed through a simple demodulator.

  • Page 110: Calibration

    All Front Panel LED’S Dark when TARGET RESET Button is Pushed Power is off. Blown fuse. Input power not present. Self test failure. Target command improperly set. Note: For 1, 2, 3, and 4, the ALARM relay contacts should be closed. Maintenance and Testing Date Code 940208 SEL-267D/167D Instruction Manual...
  • Page 111 Improper connection of terminal to system. Other port designated as the AUTOMATIC port (see AUTO setting in the SET com- mand). Port timeout interval set to a value other than zero. Failure of main board. Maintenance and Testing 6-10 Date Code 940208 SEL-267D/167D Instruction Manual...
  • Page 112 Power supply -15 volt output out of tolerance. See STATUS command. A/D converter failure. Self-Test Failure: Offset Offset drift (adjust offsets). A/D converter drift. Loose ribbon cable from transformers to main board. Maintenance and Testing 6-11 Date Code 940208 SEL-267D/167D Instruction Manual...
  • Page 113 A/D converter failure. RAM error not detected by RAM test. Stall Relay Closed (Alarm) Power is off. Blown fuse. Power supply failure. Improper EPROMs or EPROM failure. Main board failure. Date Code 940208 Maintenance and Testing 6-12 SEL-267D/167D Instruction Manual...
  • Page 116 Appendix A - Firmware Versions in this Manual ..............Appendix A-1 Appendix B - Parts Placement Diagram................Appendix B-1 Appendix C - Onebus: Program to Compute Test Set Settings for Testing Distance Relays ................... Appendix C-1 Date Code 950829 Table of Contents SEL-267D/167D Instruction Manual...
  • Page 117 Base Product fast meter SEL-167D-R601 ACB rotation fast meter Base Product fast meter fast operate SEL-167D-3-R400 SEL-167D-R403 Base Product fast meter ACB rotation SEL-167D-R600 SEL-167D-R402 Base Product SEL-167D-R401 Base Product Appendix A Appendix A-1 Date Code 950829 SEL-267D/167D Instruction Manual...
  • Page 118 EVENT command. This is an FID number with the Part/Revision number in bold: FID = SEL-l67D-R403 -656m2ps-D940830 For a detailed explanation of the Firmware Identification Number (FID) refer to Section 4: EVENT REPORTING. Appendix A-2 Appendix A Date Code 950829 SEL-267D/167D Instruction Manual...
  • Page 119 APPENDIX B - INTERNAL DIAGRAMS SEL-200 Series Main Board Troubleshooting Test Points and Jumper Locations Date Code 931130 Appendix B Appendix B-1 SEL-267D/167D Instruction Manual...
  • Page 120 The bottom line of the display offers you a choice of entering new impedance data (I), changing the distance from the source to the bus (B), specifying a new fault location (F), or quitting (Q). Date Code 931130 Appendix C Appendix C-1 SEL-267D/167D Instruction Manual...
  • Page 121 REM SCHWEITZER ENGINEERING LABORATORIES, INC. TR=RR:TS=RI REM 2350 NE Hopkins Court UB=67*(-0.5+TR) REM Pullman, WA 99163-5603 VB=67*(-SQR(3)/2+TS) UC=67*(-0.5-TR) REM COMPUTE DOBLE SETTINGS FOR A ONE-BUS SYSTEM VC=67*(0.5*SQR(3)-TS) REM HOMOGENEOUS SYSTEM FF$="B-C" REM SOURCE VOLTS= 67 L-N GOSUB 4041 INPUT "IMP BUS FAULT OR QUIT (I,B,F,Q)";A$ REM ENTER IMPEDANCES FOR 100% OF LINE IF A$ = "I"...
  • Page 122 SEL-267D DIRECTIONAL OVERCURRENT COMMAND SUMMARY Access Level 0 Answer password prompt (if password protection enabled) to gain access to Level 1. ACCESS Three unsuccessful attempts pulses ALARM relay. Access Level 1 Answer password prompt (if password protection enabled) to gain access to Level 2.
  • Page 123 EXPLANATION OF EVENT REPORT Currents and voltages are in primary Amps and kV. Rows are ¼ cycle apart. Time runs down page. Obtain phasor RMS value and angle using any entry as the Y-component, and the entry immediatey underneath as the X-component. For example, from bottom rows, IAY = -275, IAX = -1206.

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