Schweitzer Engineering SEL-387-0 Instruction Manual
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Schweitzer Engineering SEL-387-0 Instruction Manual

Current differential overcurrent relay data recorder
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Table of Contents

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SEL-387-0, -5, -6 Relay
Current Differential
Overcurrent Relay
Data Recorder
Instruction Manual
20170601
*PM387-01-NB*

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Summary of Contents for Schweitzer Engineering SEL-387-0

  • Page 1 SEL-387-0, -5, -6 Relay Current Differential Overcurrent Relay Data Recorder Instruction Manual 20170601 *PM387-01-NB*...
  • Page 2 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.

  • Page 3: Table Of Contents

    Time-Overcurrent Curves ..........................3.66 Section 4: Control Logic Overview ................................. 4.1 Optoisolated Inputs............................4.2 Local Control Switches (All But SEL-387-0 Relay)..................4.2 Remote Control Switches ..........................4.3 Multiple Setting Groups ..........................4.4 Control Equation Sets (1—3) Variables ..................4.8 OGIC Output Contacts .............................
  • Page 4 Additional Relay Settings..........................6.3 Default Settings ............................... 6.9 Settings Sheets............................... 6.12 SEL-387-0, -5, -6 Relay Settings Sheets SEL-387-0, -5, -6 Relay Settings Sheets Example Section 7: Serial Port Communications and Commands Overview ................................. 7.1 Establish Communication..........................7.1 Communications Protocol ..........................7.7 SEL ASCII Protocol Details..........................
  • Page 5 Point Remapping ............................G.16 SEL-387-5, -6 Relay DNP Port—SET P Settings Sheets Appendix H: Protection Application Examples Overview ................................ H.1 Transformer Winding and CT Connection Compensation Settings Examples ..........H.1 SEL-387 Relay Command Summary Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 6 This page intentionally left blank...

  • Page 7: List Of Tables

    Control Equation Settings for Rotating Selector Switch........4.7 OGIC Table 4.4 Control Equation Variables (SEL-387-0 Relay Only)..........4.9 OGIC Table 4.5 Control Equation Variables (All But SEL-387-0 Relay)........4.9 OGIC Table 4.6 LED Assignments ........................ 4.13 Table 4.7 Control Equation Operators ................. 4.20 OGIC Table 4.8...
  • Page 8 Table 10.4 Connection Compensation Factor ..................10.21 Table 10.5 Troubleshooting........................10.34 Table A.1 Firmware Revision History—SEL-387-0, -5, -6 Relay ............A.2 Table A.2 Manual Revision History—SEL-387-0, -5, -6 ..............A.7 Table A.3 Manual Revision History—SEL-387-0 Relay ..............A.13 Table A.4 Manual Revision History—SEL-387-5, -6 Relay ...............
  • Page 9 Winding 1 Compensated Currents ..................3.3 Figure 3.3 Differential Element (87-1) Quantities (SEL-387-0) ............. 3.3 Figure 3.4 Differential Element (87-1) Quantities (All But SEL-387-0) ..........3.4 Figure 3.5 Differential Element Decision Logic ..................3.5 Figure 3.6 Differential Element Harmonic Blocking Logic ..............3.7 Figure 3.7...
  • Page 10 BOOT Figure B.10 Matching Computer to Relay Parameters ................B.9 Figure B.11 Example Receive File Dialog Box ..................B.10 Figure B.12 Example Filename Identifying Old Firmware Version ............B.10 Figure B.13 Downloading Old Firmware....................B.10 SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 11 Figure H.27 Direction of Compensation Based on System Phase Rotation..........H.19 Figure H.28 Primary Currents and Secondary Currents as Measured by the Relay ....... H.19 Figure H.29 Common Transformer Connections ..................H.20 Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 12 This page intentionally left blank...

  • Page 13: Preface

    Appendix B: SEL-300 Series Relays Firmware Upgrade Instructions. Describes the procedure to update the firmware stored in flash memory. Appendix C: SEL Distributed Port Switch Protocol (LMD). Describes the use of this protocol. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 14: Safety Information

    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 SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 15 être mis à la terre damage may result. convenablement pour éviter les dommages à l’équipement. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 16: General Information

    SEL-387. These examples are for demonstration purposes only; the firmware identification information or settings values included in these examples may not necessarily match those in the current version of your SEL-387. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 17: Section 1: Introduction And Specifications

    For assistance with CT selection, obtain SEL Application Guide 99-07 Bus Protection Using a Four- Winding Low-Impedance Percentage Differential Relay from the SEL website (selinc.com). Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 18: Relay Functions

    These relays also provide security against conditions that may cause relay misoperation, resulting from both system and transformer events. Use the fifth-harmonic element to prevent relay misoperation during allowable overexcitation conditions. Even-harmonic elements (second and fourth SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 19 Windings 1 and 2 and Windings 3 and 4 Overcurrent element pickup settings and operating characteristics are independent of the differential element settings. Most elements can be torque controlled. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 20: Application Ideas

    Optoisolated Inputs equation functions include independent timers, tripping, event report and Output Contacts triggering, and relay output contact control. Application Ideas ∑ Combined ∑ Combined Figure 1.2 Transformer and Overcurrent Protection SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 21: Figure 1.3 Transformer And Low-Voltage Bus Protection

    Introduction and Specifications Application Ideas 52-1 CT2B 52-2 ∑ CT2A Combined Low-Voltage Bus 52-3 52-4 52-5 Figure 1.3 Transformer and Low-Voltage Bus Protection Figure 1.4 Bus and Feeder Protection Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 22: Figure 1.5 Unit Differential Protection

    Introduction and Specifications Application Ideas Figure 1.5 Unit Differential Protection SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 23: Model Options

    However, we recommend using the SEL-387-5 or the SEL-387-6 for new designs because of the enhanced features they provide. SEL-387 Relay The SEL-387-5 includes all of the features of the SEL-387-0 plus the following enhancements: ➤ Adds 16 local control switches ➤...

  • Page 24: Specifications

    Relay accepts demodulated IRIG-B time-code input at Port 1 or 2. 250 V 0.20 A L/R = 40 ms Relay is time synchronized to within ±5 ms of time source input. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 25 Pickup Accuracy (A secondary) Impulse: IEC 60255-5:1977 0.5 J, 5000 V 5 A Model: ±5% ±0.10 A 1 A Model: ±5% ±0.02 A Unrestrained Element 0.8/1.0/1.9 cycles Pickup Time: (Min/Typ/Max) Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 26 2 and 30 multiples of pickup Note: For the combined current elements, 30 multiples of pickup is the sum of the currents in the two windings. Reset Characteristic: Induction-disk reset emulation or 1 cycle linear reset SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 27: Section 2: Installation

    (69.9 mm) from the front of your panel. This ordering option increases space at the rear of the relay for applications where the relay would ordinarily be too deep to fit your cabinet. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 28: Figure 2.1 Relay Dimensions For Rack-Mount And Panel-Mount Models

    Installation Relay Mounting Dimensions and Cutout Figure 2.1 Relay Dimensions for Rack-Mount and Panel-Mount Models SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 29: Figure 2.2 Front-Panel Drawings-Models 0387X0Xxxh And 0387X1Xxxh

    Installation Relay Mounting Figure 2.2 Front-Panel Drawings–Models 0387x0xxxH and 0387x1xxxH Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 30: Figure 2.3 Front-Panel Drawings-Models 0387X0Xxx3 And 0387X1Xxx3

    Installation Relay Mounting Figure 2.3 Front-Panel Drawings–Models 0387x0xxx3 and 0387x1xxx3 SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 31: Rear-Panel Connections

    WA03870YxxxA, where x designates wire sizes and length. You can find the model option table on the SEL website at selinc.com. Refer to Figure 2.6 to make all Connectorized connections. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 32: Figure 2.4 Rear-Panel Drawings-Models 0387X0Xxxxx And 0387X1Xxxx2

    Installation Rear-Panel Connections Figure 2.4 Rear-Panel Drawings–Models 0387x0xxxxX and 0387x1xxxx2 SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 33: Figure 2.5 Rear-Panel Drawings-Models 0387X1Xxxx4 And 0387X1Xxxx6

    Installation Rear-Panel Connections Figure 2.5 Rear-Panel Drawings–Models 0387x1xxxx4 and 0387x1xxxx6 Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 34: Figure 2.6 Rear-Panel Drawings-Models 0387Xyxxxx6 And 0387Xyxxxx2

    Installation Rear-Panel Connections Figure 2.6 Rear-Panel Drawings–Models 0387xYxxxx6 and 0387xYxxxx2 SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 35 The control power circuitry is isolated from the frame ground. The 24/48 V power supply is polarity sensitive. Refer to Section 1: Introduction and Specifications for power supply voltage ranges. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 36: Figure 2.7 Standard Independent Output Contact Representation

    Communications and Commands for detailed cable diagrams for selected recommend such products nor does SEL guarantee proper operation of cables. those products, or the correctness of connections, over which SEL has no control. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 37: Table 2.1 Sel-387 Communication Cable Numbers

    SEL-2020 Communications Processor, SEL IDM, or satellite time clock. Connect the IRIG-B source to the relay through the connectors for serial SERIAL PORTS 1 or 2. Refer to the port pin definition of each port for the appropriate connection. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 38: Typical Ac/Dc Connections

    IBW2 ICW2 IAW3 IBW3 ICW3 IAW4 IBW4 ICW4 Neutral CT for REF Prot. (optional) SEL-387 (partial) Transformer Connections: YYDAC (Yy0d1) Current Transformer Connection: YYY Figure 2.8 Example AC Connections (Three-Winding Transformer) SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 39: Circuit Board Configuration

    Identify grounded or equipment damage may which draw-out tray needs to be removed. An SEL-387 result. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 40 This is the normal configuration of these jumpers in a standard relay shipment. The additional interface boards have slightly different layout locations for the jumpers relative to the corresponding output contacts. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 41: Table 2.2 Sel-387 Second Alarm Contact Jumper Position

    JMP6D and you lose dc power to the relay, the relay will power up in SELBOOT when power is restored. The front panel will show SELBOOT then a warning to remove the jumper when you attempt serial port communication. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 42 Refer to the SEL RTS Instruction Manual for system operation. For normal operation, be sure to properly reinstall the ribbon cable that connects the transformers in the bottom of the chassis to the main board. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 43 Board 2 and Interface Board 6 (Connectorized), respectively. The only difference between the two is the row of electronic components that form the interruption circuits of the high current interrupting contacts on Interface Board 6. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 44: Figure 2.10 Main Board Jumpers, Connections, And Battery Locations

    2.18 Installation Circuit Board Configuration Figure 2.10 Main Board Jumpers, Connections, and Battery Locations SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 45: Figure 2.11 Interface Board 2 Component Layout (Conventional Terminal Block)

    Installation 2.19 Circuit Board Configuration Figure 2.11 Interface Board 2 Component Layout (Conventional Terminal Block) Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 46: Figure 2.12 Interface Board 4 Component Layout (Conventional Terminal Block)

    2.20 Installation Circuit Board Configuration Figure 2.12 Interface Board 4 Component Layout (Conventional Terminal Block) SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 47: Figure 2.13 Interface Board 6 Component Layout (Conventional Terminal Block)

    Installation 2.21 Circuit Board Configuration Figure 2.13 Interface Board 6 Component Layout (Conventional Terminal Block) Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 48: Figure 2.14 Interface Board 2 Component Layout (Connectorized)

    2.22 Installation Circuit Board Configuration Figure 2.14 Interface Board 2 Component Layout (Connectorized) SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 49: Figure 2.15 Interface Board 6 Component Layout (Connectorized)

    Installation 2.23 Circuit Board Configuration Figure 2.15 Interface Board 6 Component Layout (Connectorized) Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 50 This page intentionally left blank...

  • Page 51: Section 3: Differential, Restricted Earth Fault, Thermal, And Overcurrent Elements

    CT ratio mismatches, CT ratio errors, CT saturation, and errors because of tap changing. All relays but the SEL-387-0 Relay offer the choice between harmonic blocking and harmonic restraint to secure relay stability during transformer inrush conditions. Even-numbered harmonics (second and fourth), augmented by dc blocking provide security during energization, while fifth harmonic blocking provides security for overexcitation conditions.

  • Page 52: Figure 3.1 Percentage Restraint Differential Characteristic

    Winding 1 are shown in Figure 3.2. Four digital band-pass filters extract the fundamental, second, fourth (all but SEL-387-0), and fifth (not shown) harmonics of the input currents. A dc filter (not shown) forms one cycle sums of the positive and negative values.

  • Page 53: Figure 3.2 Winding 1 Compensated Currents

    Figure 3.3 and Figure 3.4 illustrate how the IOP1 (operate), IRT1 (restraint), IHRT1 (harmonic restraint, all but SEL-387-0 Relay), I1HB2 (second harmonic), and I1HB4 (fourth harmonic, all but SEL-387-0) quantities are calculated for the 87-1 element. IOP1 is generated by summing the winding currents in a phasor addition.

  • Page 54: Figure 3.4 Differential Element (87-1) Quantities (All But Sel-387-0)

    Figure 3.1. Set HRSTR =Y (harmonic restraint, all but SEL-387-0) to modify this characteristic as a function of the second- and fourth-harmonic content in the input currents.

  • Page 55: Figure 3.5 Differential Element Decision Logic

    87U2 87U3 Figure 3.5 Differential Element Decision Logic Harmonic Restraint (All But SEL-387-0) Consider the harmonic restraint feature (HRSTR = Y) if your practices require independent harmonic restraint. This feature automatically applies harmonic restraint to each phase independently. The harmonic blocking setting IHBL is not used.
  • Page 56 87R Relay Word bit asserts and tripping can take place. In other words, with IHBL = N, blocking within ANY differential element will prevent operation and tripping of ALL the restrained differential elements. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 57: Figure 3.6 Differential Element Harmonic Blocking Logic

    Harmonic Blocking Figure 3.7 (SEL-387-0) and Figure 3.8 (all but SEL-387-0) show how the 87BL1 blocking element will pick up if the second-, fourth-, or fifth-harmonic operating current, as a percentage of fundamental operating current, is above the PCT2, PCT4, or PCT5 setting threshold, respectively.

  • Page 58: Figure 3.7 Differential Element (87Bl1) Blocking Logic (Sel-387-0)

    4HB2 4HBL 4HB3 Figure 3.8 Differential Element (87BL1) Blocking Logic (All But SEL-387-0) DC Ratio Blocking (All But SEL-387-0) Figure 3.9 shows the dc blocking logic for Differential Element 1. Elements DCBL1, DCBL2, and DCBL3 are combined to form element DCBL as shown at the bottom of Figure 3.8.

  • Page 59: Figure 3.9 Dc Blocking (Dcbl1) Logic (All But Sel-387-0)

    For all relays but the SEL-387-0, selecting Y1 makes the fourth-harmonic (PCT4), dc ratio blocking (DCRB), and harmonic restraint (HRSTR) settings available on all enabled (Y or Y1) windings. This is the only difference between Y and Y1 selection.
  • Page 60 “TAPn” values. You can also directly enter tap values. Set MVA = OFF, and enter the TAP1 through TAP4 values directly, along with the other pertinent settings. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 61 You can set the relay to block the percentage restrained differential element if the ratio of second-harmonic current to fundamental current (IF2/IF1) is greater than the PCT2 setting. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 62 (All But SEL-387-0) Range: OFF, 5–100%, in 1% steps For all relays but the SEL-387-0, set E87Wx = Y1 to make the fourth- harmonic (PCT4), dc ratio blocking (DCRB), and harmonic restraint (HRSTR) settings available. Energization of a transformer causes a temporary large flow of magnetizing inrush current into one terminal of a transformer, without other terminals seeing this current.
  • Page 63 DC Ratio Blocking (DCRB) (All But SEL-387-0) For all relays but the SEL-387-0, set E87Wx = Y1 to make the fourth- harmonic (PCT4), dc ratio blocking (DCRB), and harmonic restraint (HRSTR) settings available. Some magnetizing inrush cases contain very little harmonic content but contain a dc offset.
  • Page 64 CTC(m) is the three-by-three compensation matrix corresponding to the WnCTC setting. The complete list of compensation matrices (m = 0–12) and the corresponding correction compensation they result in are shown in Table 3.1. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 65: Table 3.1 Wnctc Setting: Corresponding Phase And Direction Of Correction

    1 –2 CTC(7) 210° CCW 210° CW –1 1  ------ - –1 0 –1 CTC(8) 240° CCW 240° CW –1 2 –1  -- - –1 –1 2 2 –1 –1 Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 66 Select matrix CTC(0) for the compensation of the delta winding. ➢ If a delta winding does not exist, select matrix CTC(11) for the compensation of one of the wye windings. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 67   •  O87P ----------------------- - Equation 3.4 Restraint Slope Percentage Example: The current transformer error, e, is equal to ±10 percent. In per unit: e = 0.1 Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 68 7 percent. For example, the additional fundamental SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 69 “dilute” the level of second harmonic seen at the primary to less than 15 percent. Fourth-Harmonic Blocking (All But SEL-387-0 Relay) Transformer magnetizing inrush currents are generated during transformer energization when the current contains a dc offset due to point-on-wave switching.
  • Page 70 Figure 3.10. For simplicity, only Terminal 1 and Terminal 3 currents are shown. Terminal 2 currents are the same as Terminal 1. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 71: Figure 3.10 Primary Currents And Secondary Currents As Measured By The Relay

    •   1 for wye CTs Equation 3.7 Thus, we have the following: 100 MVA 1000 • TAP1 ---------------------------------------------- - • 230 kV • • TAP1 2.09 A Equation 3.8 Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 72 The differential unit settings are complete for this specific application. At this point you can also choose to set backup overcurrent elements which we discuss at the end of this section. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 73 I . For delta-connected CTs I  equals 3 • I . Select the nearest standard ratio such that I is between 0.1 • I and 1.0 • I A secondary. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 74 Note that the effective C voltage rating of a CT is lower than the nameplate rating if a tap other than the maximum is used. Derate the CT C voltage rating by a factor of ratio used/ratio max. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 75: Restricted Earth Fault Element

    CT saturation during heavy three-phase faults. If the blocking logic asserts, the CTS Relay Word bit asserts. To prevent 32IE assertion when CTS asserts, set the E32I setting = !CTS. Note that the SEL-387-0 Relay prior to firmware version R602 does not support the CTS Relay Word bit.

  • Page 76: Figure 3.11 Ref Enable/Block Logic

    The relay enables the 32I directional element if the output of the AND gate at left-center in Figure 3.12 asserts. This will occur if the two Relay Word bits 32IE and 50GC assert. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 77: Figure 3.13 Ref Protection Output (Extremely Inverse-Time O/C)

    32IF deasserts. When the curve times out, Relay Word bit REFP asserts. You can use this bit directly as an input to the appropriate trip variables, TRn, to trip the breaker or breakers that feed the fault. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 78 Determine criterion 1 for load imbalance. The second criterion relates to the relative sensitivity of the winding CTs compared to the neutral CT. Setting Calculation Operating Quantity Figure 3.14 depicts how to determine the Operate quantity, 32IOP, setting. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 79: Figure 3.14 Ref Function, 32Iop Setting Guide

    CTs at the line end. You would also have to connect these CTs to winding inputs 1 and 2. Such a connection would be Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 80 . The relay then will prompt you for a new Out of Range setting. The relay stores a default setting for the Residual Current Sensitivity Threshold of 5OGP = 0.5 A. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 81: Temperature Measurement (Sel-387-5 And Sel-387-6 Relays)

    Setting 49A01A °F–32° 101°F–32° --------------------------------------------------------- ------------------------- - 38.3°C internal relay processing temperature, rounded to 38°C Equation 3.13 38°C • 1.8 + 32° = 100.4°F = 100°F reported temperature, rounded to 100°F. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 82: Thermal Element (Sel-387-6 Relay)

    FAA, daily rate of loss of life, RLOL, and total loss of life, TLOL. For each of these quantities you can set a threshold beyond which a Relay Word bit will assert (Figure 3.15). SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 83: Figure 3.15 Thermal Element Logic

    (DTMP) that you select and calculates the top-oil and hot-spot temperatures (Figure 3.16 (C)). Top-oil temperature is always calculated from the applied currents for the cooling system efficiency element. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 84: Figure 3.16 Top-Oil And Hot-Spot Temperatures

    = initial hot-spot rise over top-oil temperature at the start time of the interval, °C = thermal time constant of hot spot, in hours (set from Table 3.3) t = one-minute temperature data acquisition interval SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 85 °C ( TO,i = thermal top-oil time constant of transformer, in hours The relay calculates the ultimate top-oil rise over ambient temperature,  , according to the following expression: TO,U Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 86 (via the CSEPx setting), a Cooling System Efficiency (CSE) Relay Word bit is asserted. This bit can be programmed to SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 87 ILIFE = expected normal insulation life in hours (set from Table 3.3) The relay stores the RLOL value at midnight each day to provide the user with trend information on the loss of insulation life. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 88 TLOL = previous TLOL The relay stores the TLOL value at midnight each day. You can use the THE P command to load an initial value of TLOL into the relay. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 89 MVA rating (see MCS setting) to calculate rated current. The relay then divides measured current by the rated current to determine K, which the relay uses in thermal element calculations. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 90 Range: 1–3 Power transformers generally have a self-cooled rating and one or two stages of forced cooling. Set NCS to the maximum number of cooling stages associated with the monitored power transformer. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 91: Table 3.2 Examples Of Cooling Stages And Mva Ratings

    If your data acquisition system cannot measure ambient temperature, then the thermal element calculations always use the DTMP value. The DTMP setting units are degrees Celsius. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 92 SEL-387-6 thermal model. Use this setting for single tank, Measured Ambient and three phase transformers, or as one of three top oil inputs for single tank, Top-Oil Temperatures for the SEL-387-6 Relay single phase transformers. Thermal Element”. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 93 A transformer subjected to overload or temperature greater than the normal transformer rating will age faster than the same transformer at rated load and temperature. One of the outputs the thermal element provides is a transformer Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 94 Assertion of the CSE bit indicates that the cooling system (fans and/ or pumps) is operating below expected efficiency and may require maintenance. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 95: Table 3.3 Default Transformer Constants

    The winding time constant may be estimated from the resistance cooling curve during thermal tests or calculated by the manufacturer using the mass of the conductor materials. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 96 Table 3.3 are from IEEE C57.92-1981, Tables 2 and 4. If specific values for a particular transformer are known, you can enter values from within a range of 0 to 100. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 97 SEL-2600A for gathering temperature readings, some applications may use Using the SEL-2030 the SEL-2030 communications processor for retrieving the temperature data to Send Temperature from the SEL-2600A. Data to the SEL-387-6 Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 98: Overcurrent Element

    Two of the 11 overcurrent elements, 50Pn3 and 50Pn4, are not torque controlled. These two elements are phase instantaneous overcurrent elements that provide output information per phase SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 99: Table 3.4 Overcurrent Element Summary

    50Pn1T, asserts. This bit asserts only if the 50Pn1 bit remains asserted for the duration of 50Pn1D. When 50Pn1 deasserts, the timer resets without delay, along with 50Pn1T if it has asserted. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 100: Figure 3.18 50Pn1 Phase Definite-Time O/C Element, Torque Controlled

    – Word Bits |IBWn| 50Bn3(4) 50Pn3(4) – (n = Winding 1, 2, 3, or 4) |ICWn| 50Cn3(4) – 50Pn3P (4P) Figure 3.20 50Pn3 and 50Pn4 Phase Instantaneous O/C Element, Nontorque Controlled SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 101: Figure 3.21 51Pn Phase Inverse-Time O/C Element, Torque Controlled

    This saves time if you have chosen electromechanical reset. 50Qn1 and 50Nn1–Sequence Current Definite-Time Element Logic Figure 3.22 shows the logic for the definite-time 50Qn1 negative-sequence element and the definite-time 50Nn1 residual element. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 102: Figure 3.22 50Qn1 And 50Nn1 Sequence Definite-Time O/C Element, Torque Controlled

    The 50Qn2 element compares the magnitude of the calculated negative- sequence current, 3I2Wn, to the pickup setting, 50Qn2P. If the calculated negative-sequence current exceeds the pickup level, a logical 1 asserts at one SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 103: Figure 3.24 51Qn And 51Nn Sequence Inverse-Time O/C Element, Torque Controlled

    The 51Nn element compares the magnitude of the calculated residual current, IRWn, to the pickup setting, 51NnP. If calculated residual current exceeds the pickup level, a logical 1 asserts at one input to the AND gate at the center. The Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 104: Figure 3.25 Combined Overcurrent Example

    Combination:Windings 1 and 2 CT Equivalent 1 and 2 W1 and W2 1200 A 3800 A W3 and W4 Combination:Windings 3 and 4 CT Equivalent 3 and 4 Figure 3.25 Combined Overcurrent Example SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 105: Figure 3.26 51Pc1 And 51Nc1 Combined Inverse-Time O/C Elements

    CTR1 = 600/5 = 120 CTR2 = 2000/5 = 400 InW1 = 2000 A (primary) InW2 = 1000 A (primary) Pickup = 8000 A (primary) where n = Phase A, Phase B, or Phase C. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 106 You can use the Level 2 serial port command RES or the front-panel RESET51 function under the {OTHER} pushbutton to force the bit to 1 during element testing. This saves time if you have chosen electromechanical reset. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 107 Because CTR1<CTR2, the relay uses CTR2 as the common base. 400 A 51NC1P 2 A secondary -------------- Equation 3.42 The combined secondary current value is less than the 51NC1P setting, so 51NC1 does not assert. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 108 As with the phase current element, four settings define the curve: 51NC1P is the pickup setting, 51NC1C defines the curve equation, 51NC1TD defines the time dial, and 51NC1RS determines how the curve resets. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 109: Figure 3.27 51Pc2 And 51Nc2 Combined Inverse-Time O/C Elements

    Winding 1. Windings 2, 3, and 4 overcurrent element settings have similar names and labels. All windings have NOTE: All negative-sequence identical setting ranges. element pickup settings are in terms of 3I Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 110 = 1: W1 + W2; m = 2: W3 + W4. This setting defines a particular curve equation for an inverse-time curve from among five U.S. (U1–U5) and five IEC (C1–C5) curves. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 111 Unlike conventional electromechanical overcurrent elements, the SEL-387 overcurrent elements ignore all but the fundamental frequency current, making them insensitive to Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 112 Equation 3.46 where I is the maximum phase current. Thus, the negative-sequence element is 1.73 times more sensitive to phase-to- phase faults than a phase overcurrent element with the same pickup setting. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 113 Set the residual time-overcurrent element to provide sensitive detection and coordinated time-overcurrent protection for phase-to-ground faults. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 114 These choices are easily accomplished by creating a SEL OGIC control equation that describes what is needed, and storing the equation as the setting for the torque-control variable of the specific overcurrent element. For SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 115 U2 inverse curve, with electromechanical reset. Tripping is for the 13.8 kV Breaker 3. The 50P33 and 50P34 phase instantaneous elements are used for supervision, set at 0.5 A and 4 A. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 116: Time-Overcurrent Curves

      • ------------- - • ---------------- C2 (Very Inverse)   Figure 3.34 – –   • ---------------- • ---------------- C3 (Extremely Inverse) Figure 3.35   – – SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 117: Figure 3.28 U. S. Moderately Inverse Curve: U1

    2.00 15 (12.5) 1.00 6 (5) 0.50 3 (2.5) .5 .6 .7 .8 .9 1 5 6 7 8 9 Multiples of Pickup Figure 3.28 U. S. Moderately Inverse Curve: U1 Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 118: Figure 3.29 U.s. Inverse Curve: U2

    30 (25) 2.00 15 (12.5) 1.00 6 (5) 0.50 3 (2.5) .5 .6 .7 .8 .9 1 5 6 7 8 9 Multiples of Pickup Figure 3.29 U.S. Inverse Curve: U2 SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 119: Figure 3.30 U.s. Very Inverse Curve: U3

    3.00 15 (12.5) 2.00 1.00 6 (5) 0.50 3 (2.5) .5 .6 .7 .8 .9 1 5 6 7 8 9 Multiples of Pickup Figure 3.30 U.S. Very Inverse Curve: U3 Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 120: Figure 3.31 U.s. Extremely Inverse Curve: U4

    15 (12.5) 5.00 4.00 3.00 6 (5) 2.00 3 (2.5) 1.00 0.50 .5 .6 .7 .8 .9 1 6 7 8 9 Multiples of Pickup Figure 3.31 U.S. Extremely Inverse Curve: U4 SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 121: Figure 3.32 U.s. Short-Time Inverse Curve: U5

    6.00 5.00 15 (12.5) 4.00 3.00 2.00 6 (5) 1.00 3 (2.5) 0.50 .5 .6 .7 .8 6 7 8 9 Multiples of Pickup Figure 3.32 U.S. Short-Time Inverse Curve: U5 Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 122: Figure 3.33 Iec Class A Curve (Standard Inverse): C1

    15 (12.5) 0.10 6 (5) 0.05 3 (2.5) .5 .6 .7 .8 .9 1 5 6 7 8 9 Multiples of Pickup Figure 3.33 IEC Class A Curve (Standard Inverse): C1 SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 123: Figure 3.34 Iec Class B Curve (Very Inverse): C2

    0.40 0.30 6 (5) 0.20 3 (2.5) 0.10 0.05 .5 .6 .7 .8 .9 1 6 7 8 9 Multiples of Pickup Figure 3.34 IEC Class B Curve (Very Inverse): C2 Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 124: Figure 3.35 Iec Class C Curve (Extremely Inverse): C3

    0.60 3 (2.5) 0.50 0.40 0.30 0.20 0.10 0.05 .5 .6 .7 .8 .9 1 6 7 8 9 Multiples of Pickup Figure 3.35 IEC Class C Curve (Extremely Inverse): C3 SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 125: Figure 3.36 Iec Long-Time Inverse Curve: C4

    600 (500) 300 (250) 1.00 0.90 0.80 0.70 150 (125) 0.60 0.50 0.40 0.30 60 (50) 0.20 30 (25) 0.10 0.05 Multiples of Pickup Figure 3.36 IEC Long-Time Inverse Curve: C4 Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 126: Figure 3.37 Iec Short-Time Inverse Curve: C5

    0.60 0.50 0.40 0.30 6 (5) 0.20 3 (2.5) 0.10 0.05 .5 .6 .7 .8 .9 5 6 7 8 9 Multiples of Pickup Figure 3.37 IEC Short-Time Inverse Curve: C5 SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 127: Section 4: Control Logic

    A complete listing of the Relay Word and explanation of the bit names are included at the end of this section, along with a discussion of SEL control equations in general. OGIC Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 128: Optoisolated Inputs

    Breaker 1 would use the IN101 Relay Word bit as this indication. Local Control Switches (All But SEL-387-0 Relay) The local control switch feature of this relay replaces traditional panel- mounted control switches.

  • Page 129: Remote Control Switches

    Active Setting Group ON position (corresponding remote bit is still asserted to logical 1) after the Changed change. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 130: Multiple Setting Groups

    SSn (n = 1 to 6) is OGIC Control Equation TRUE (logical state 1), the relay is instructed to go to, or remain in, Setting Settings SS1 through Group n. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 131 Previous SEL relays (e.g., SEL-321 Relay and SEL-251 Relay) have multiple settings groups controlled by the assertion of three optoisolated inputs (e.g., Switching Example IN101, IN102, and IN103) in different combinations as shown in Table 4.2. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 132: Table 4.2 Active Setting Group Switching Input Logic

    Table 4.3, as the selector switch is moved from one position to another, a different setting group is activated. The logic in Table 4.2 is implemented in the SEL control equation settings in Table 4.3. OGIC SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 133: Table 4.3 Sel Ogic Control Equation Settings For Rotating Selector Switch

    (in this case minimizes) the amount of time to block TR4, since CHSG asserts exactly when the change of groups is needed, and deasserts exactly when the change has taken place. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 134: Sel Ogic Control Equation Sets (1-3) Variables

    There are timed variables and latch bits available to the user. The three control equation sets have different mixes of variable types, as OGIC shown below in Table 4.4 and Table 4.5. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 135 Control Latch Control Switches OGIC Timers Equation Set (Latch Bits) Table 4.5 SEL Control Equation Variables (All But SEL-387-0 Relay) OGIC SELOGIC Control Latch Control Switches Timers Equation Set (Latch Bits) The format of the setting names for these variables is as follows:...

  • Page 136: Figure 4.4 Traditional Latching Relay

    (Reset latch bit). The Set/Reset values come from the logical state of the control equations stored for these two settings. These latch bits may OGIC be used in SEL control equations, wherever a latching function is OGIC required. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 137: Output Contacts

    TRIP4 Used to energize 86 device for tripping Breakers 1 through 3 OUT105 = CLS1 Used to close Breaker 1 OUT106 = CLS2 Used to close Breaker 2 OUT107 = CLS3 Used to close Breaker 3 Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 138 0. When NOTALM is zero, the ALARM output contact coil is de- energized momentarily and the b contact falls closed. The ALARM contact also drops closed when a loss of power occurs. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 139: Rotating Default Display

    Time O/C element asserted at, or 1 cycle after, rising edge of trip A-phase involved in the fault (Programmable LEDA) B-phase involved in the fault (Programmable LEDB) C-phase involved in the fault (Programmable LEDC) Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 140 87E3 bit is also set. LED 6 remains lit until reset by the TRGTR element. TRGTR is asserted for one cycle either via the {TARGET RESET} pushbutton on the front panel or via the serial port command TAR R. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 141 “Wn” LED is lit, then asserting if the associated 50Cn4 overcurrent element bit is asserted, or if the magnitude of the ICWn phase current is greater than or equal to the magnitudes of IAWn and IBWn. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 142: Trip And Close Logic

    Relay Word bit that can be assigned to operate output contacts or in any other manner for which a Relay Word bit can be used. The specifics of each type of logic are discussed below. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 143: Figure 4.7 Sel-387 Trip Logic (Trip1)

    ULTR1 = !50P13 = NOT 50P13. This current element is set to pick up at 0.5 A. Thus, ULTR1 asserts when the currents in all three phases drop below 0.5 A, indicating successful three-pole opening of the breaker. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 144: Figure 4.8 Sel-387 Close Logic (Cls1)

    Group variables. In our example application, CL1 = CC1 + /IN104. Thus, CL1 will assert either if (1) a CLO 1 command has been sent to the relay via a SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 145 The CFT1 bit might also be control equation Latch Bit to close a contact, informing used to set a SEL OGIC a SCADA system of the aborted closure attempt. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 146: Sel Ogic Control Equations

    Table 4.7 lists these Operators operators in order of processing. Table 4.7 SEL Control Equation Operators OGIC Operator Logic Function parentheses NOT (negation) rising edge detect falling edge detect SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 147 We could set 51P1TC to a single Relay Word bit. For example, 51P1TC = IN105. This might be used for torque controlling by a contact input from some external device like a directional relay. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 148 OGIC Global or Group n checksum (GBLCHK or GRnCHK) is yyyy. The relay provides use and checksum results for the GLOBAL and GROUP n settings. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 149: Relay Word Bits

    87R2 87R3 2HB1 2HB2 2HB3 5HB1 5HB2 5HB3 TH5T 87BL1 87BL2 87BL3 87BL 87E1 87E2 87E3 32IE 87O1 87O2 87O3 50GC 50G4 32IR 32IF REFP 51PC1 51PC1T 51PC1R 51NC1 51NC1T 51NC1R Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 150 COMFLA RTDINA COMFLB RTDINB ISQTAL Not available in SEL-387-0 Relays prior to firmware version R602. SEL-387-6 only. SEL-387-5 and SEL-387-6 Relays only. * Reserved for future use. !ALARM in the SEL-387-5 and SEL-387-6 Relays for firmware versions prior to R600.

  • Page 151: Table 4.10 Relay Word Bit Definitions

    Winding 1 neg.-seq. inverse-time O/C element timed out 51Q1R Winding 1 neg.-seq. inverse-time O/C 51Q1 element is reset QDEM1 Winding 1 neg.-seq. demand current threshold exceeded Breaker 1 CLOSE command execution Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 152 51P3T Winding 3 phase inverse-time O/C element timed out 51P3R Winding 3 phase inverse-time O/C 51P3 element is reset PDEM3 Winding 3 phase demand current threshold exceeded O/C element C-phase selection SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 153 Winding 4 phase inverse-time O/C 51P4 element is reset PDEM4 Winding 4 phase demand current threshold exceeded Current transformer saturation (not available in the SEL-387-0 Relay prior to firmware version R602) 50A43 Winding 4 A-phase instantaneous O/C Level 3 element picked up...
  • Page 154 Harmonic block asserted for differential element 87E1 Trip by differential element 1 87E2 Trip by differential element 2 87E3 Trip by differential element 3 32IE Internal enable for the 32I element SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 155 Remote bit RB10 asserted RB11 Remote bit RB11 asserted RB12 Remote bit RB12 asserted RB13 Remote bit RB13 asserted RB14 Remote bit RB14 asserted RB15 Remote bit RB15 asserted RB16 Remote bit RB16 asserted Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 156 COMFLG Asserted when communications fail or when out-of-range temperature data are received on the serial port used to obtain temperature data (SEL-387-6 Relay only) 4HBL Fourth-harmonic block asserted (all but SEL-387-0 Relay) DCBL DC block asserted (all but SEL-387-0 Relay) Input IN106 asserted...
  • Page 157 S3V6 timer input asserted OGIC S3V7 Set 3 SEL control equation variable S3V7 timer input asserted OGIC S3V8 Set 3 SEL control equation variable S3V8 timer input asserted OGIC Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 158 Set 2 latch bit S2LT3 asserted S2LT4 Set 2 latch bit S2LT4 asserted S3LT1 Set 3 latch bit S3LT1 asserted (all but SEL-387-0 Relay) S3LT2 Set 3 latch bit S3LT2 asserted (all but SEL-387-0 Relay) S3LT3 Set 3 latch bit S3LT3 asserted (all but SEL-387-0 Relay)
  • Page 159 ALARM output not asserted NOTALM Output OUT107 asserted OUT107 OUT106 Output OUT106 asserted Output OUT105 asserted OUT105 OUT104 Output OUT104 asserted Output OUT103 asserted OUT103 OUT102 Output OUT102 asserted OUT101 Output OUT101 asserted Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 160 Reserved Reserved Reserved Reserved Local Bit 1 asserted (all but SEL-387-0 Relay) Local Bit 2 asserted (all but SEL-387-0 Relay) Local Bit 3 asserted (all but SEL-387-0 Relay) Local Bit 4 asserted (all but SEL-387-0 Relay) Local Bit 5 asserted (all but SEL-387-0 Relay)
  • Page 161 4.35 Relay Word Bits Table 4.10 Relay Word Bit Definitions (Sheet 11 of 12) Definition Local Bit 9 asserted (all but SEL-387-0 Relay) LB10 Local Bit 10 asserted (all but SEL-387-0 Relay) LB11 Local Bit 11 asserted (all but SEL-387-0 Relay)

  • Page 162: Table 4.11 Relay Word Bits Sorted Alphabetically

    RTD1A alarm picked up (SEL-387-5 and SEL-387-6 Relays) 49A01B RTD1B alarm picked up (SEL-387-5 and SEL-387-6 Relays) 49A02A RTD2A alarm picked up (SEL-387-5 and SEL-387-6 Relays) 49A02B RTD2B alarm picked up (SEL-387-5 and SEL-387-6 Relays) SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 163 RTD7B trip picked up (SEL-387-5 and SEL-387-6 Relays) 49T08A RTD8A trip picked up (SEL-387-5 and SEL-387-6 Relays) 49T08B RTD8B trip picked up (SEL-387-5 and SEL-387-6 Relays) 49T09A RTD9A trip picked up (SEL-387-5 and SEL-387-6 Relays) Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 164 49T12A RTD12A trip picked up (SEL-387-5 and SEL-387-6 Relays) 49T12B RTD12B trip picked up (SEL-387-5 and SEL-387-6 Relays) 4HBL Fourth-harmonic element asserted (all but SEL-387-0 Relay) 50A13 Winding 1 A-phase instantaneous O/C Level 3 element picked up 50A14 Winding 1 A-phase instantaneous...
  • Page 165 Winding 2 phase instantaneous O/C Level 2 element picked up 50P23 50A23 + 50B23 + 50C23 50P24 50A24 + 50B24 + 50C24 50P31 Winding 3 phase definite-time O/C Level 1 element picked up Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 166 Winding 3 residual inverse-time O/C element timed out 51N4 Winding 4 residual inverse-time O/C element picked up 51N4R Winding 4 residual inverse-time O/C 51N4 element is reset 51N4T Winding 4 residual inverse-time O/C element timed out SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 167 Winding 4 neg.-seq. inverse-time O/C 51Q4 element is reset 51Q4T Winding 4 neg.-seq. inverse-time O/C element timed out 5HB1 Fifth-harmonic block asserted for differential element 1 5HB2 Fifth-harmonic block asserted for differential element 2 Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 168 C-phase Breaker 3 contact wear threshold exceeded BCWC4 C-phase Breaker 4 contact wear threshold exceeded Breaker 1 CLOSE command execution Breaker 2 CLOSE command execution Breaker 3 CLOSE command execution Breaker 4 CLOSE command execution SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 169 Cooling system efficiency alarm asserted (SEL-387-6 Relay only) Current transformer saturation (not available in the SEL-387-0 Relay prior to firmware version R602) DC battery voltage level 1 exceeded DC battery voltage level 2 exceeded DC battery voltage level 3 exceeded...
  • Page 170 Cumulative through-fault I t on a phase of a designated winding has exceeded the through-fault I threshold ISQT (SEL-387-5 and SEL-387-6 Relays only) Local Bit 1 asserted (all but SEL-387-0 Relay) LB10 Local Bit 10 asserted (all but SEL-387-0 Relay) LB11...
  • Page 171 Remote bit RB11 asserted RB12 Remote bit RB12 asserted RB13 Remote bit RB13 asserted RB14 Remote bit RB14 asserted RB15 Remote bit RB15 asserted RB16 Remote bit RB16 asserted Remote bit RB2 asserted Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 172 OGIC variable S2V1 timer output asserted S2V2 Set 2 SEL control equation OGIC variable S2V2 timer input asserted S2V2T Set 2 SEL control equation OGIC variable S2V2 timer output asserted SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 173 OGIC variable S2V4 timer output asserted S3LT1 Set 3 latch bit S3LT1 asserted (all but SEL-387-0 Relay) S3LT2 Set 3 latch bit S3LT2 asserted (all but SEL-387-0 Relay) S3LT3 Set 3 latch bit S3LT3 asserted (all but SEL-387-0 Relay)
  • Page 174 {TARGET RESET} pushbutton/TAR R command TRIP1 Trip 1 logic asserted TRIP2 Trip 2 logic asserted TRIP3 Trip 3 logic asserted TRIP4 Trip 4 logic asserted TRIP5 Trip 5 logic asserted TRIPL Any trip asserted SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 175: Section 5: Metering And Monitoring

    These displays are covered in Section 8: Front-Panel Interface. All METER displays herein show the default Analog Input Labels (IAW1, IBW1, etc.). Relay displays show the user setting values of the Analog Input Labels. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 176 (4 hrs 15 min). The demand values in secondary amperes are compared to user-defined thresholds, PDEMnP, QDEMnP, and NDEMnP. PDEMnP is compared to the greatest of the three individual phase current demands for Winding n, while QDEMnP is compared to the negative-sequence demand, SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 177 MM/DD/YY HH:MM:SS.SSS ICW4 12345 MM/DD/YY HH:MM:SS.SSS 3I2W4 12345 MM/DD/YY HH:MM:SS.SSS IRW4 12345 MM/DD/YY HH:MM:SS.SSS LAST PEAK DEMAND RESET FOR Wdg1: MM/DD/YY HH:MM:SS.SSS Wdg2: MM/DD/YY HH:MM:SS.SSS Wdg3: MM/DD/YY HH:MM:SS.SSS Wdg4: MM/DD/YY HH:MM:SS.SSS Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 178 1 to 32767, the report will be repeated m times in succession. In this mode, subsequent reports are not generated until the previous report has been completely sent. The format for the MET SEC report is as follows: SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 179 QDEMnP, and Relay Word bit QDEMn is set if the threshold is exceeded. Residual current demand is compared to NDEMnP, and Relay Word bit NDEMn is set if the threshold is exceeded. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 180: Figure 5.1 Sel-387 Demand Ammeter Functions And Commands

    0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 => The Analog Input Labels, , etc., will be listed as they are set in the Global IAW1 settings section of the relay. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 181: Temperature Measurement (Sel-387-5 And Sel-387-6 Relays)

    Figure 5.2 shows the alarm logic and how Relay Word bits DC1 to DC4 can be used with DC1P, DC2P, DC3P, and DC4P threshold settings to create the alarms. Figure 5.3 shows the warning and alarm regions. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 182: Figure 5.2 Station Dc Battery Monitor Alarm Logic

    To trigger an event report, include these bits in the SEL OGIC control equation ER (event report trigger setting). Use the CEV command to retrieve a compressed event report containing the value of the station dc battery voltage during the event. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 183: Breaker Monitor

    Breaker 1 trip bus and asserts for any trip from any source. Setting BKMON1 = IN106 ensures that the monitor will initiate for any Breaker 1 trip. The internal comparison with TRIP1 is then made to sort out internal versus external trips. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 184: Figure 5.4 Trip Bus Sensing With Relay Input

    Breaker n, three points are input in the Global setting area as relay settings. The points are defined by pairs of coordinates of current and operations. For Breaker n, these are the points (BnKAP1, BnCOP1), (BnKAP2, BnCOP2), SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 185 100 percent wear of the breaker contacts. Thus, the incremental percent wear for one trip operation at the defined current level is 100 / O(I) percent. For I < BnKAP1, O(I) = BnCOP1. For BnKAP1 < I < BnKAP2, O(I) is Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 186 99,999.00 kA rms. Percent Wear never exceeds 100 percent. The accumulators can be reset by the serial port command BRE n R or via the {OTHER} front-panel pushbutton menu. The serial port report format is shown below. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 187: Thermal Monitor (Sel-387-6 Relay)

    (one or more of the thermal Relay Word bits are set), the (THE Command) relay saves a snapshot of the thermal status of the transformer to EEPROM. The format for the THE report is as follows: Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 188: Table 5.1 Thermal Element Conditions

    Warning 2 TO2, HS2, FAA2 Relay Word bit is asserted. Warning 3 CSE Relay Word bit is asserted. Load Current The load current is reported as a per-unit value based on the transformer rating. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 189 The value displayed represents the total accumulated loss of life (percent) since last reset. Time to Assert TLL The value displayed represents the estimated time (in hours) to assert the total loss-of-life alarm (TLL Relay Word bit). Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 190 ➤ Maximum calculated top-oil temperature single-phase transformers (XTYPE = 1), the SEL-387-6 displays ➤ Maximum measured top-oil temperature the values for Transformer 1, Transformer 2, and Transformer 3. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 191: Table 5.2 Using The The Command To Access Data Reports

    (top) of the report and the oldest record at the end (bottom) of the report. Chronological progression through the report is down the page and in descending order. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 192: Through-Fault Event Monitor

    The more feeders on a distribution bus, the more the transformer bank is exposed to these through faults. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 193: Table 5.3 Through-Fault Event Monitor Settings

    THRU to trigger a through-fault event on the pickup of a phase instantaneous overcurrent element on Winding 2: THRU = 50P23 To block triggering of through-fault events resulting from transformer inrush, consider settings such as THRU = 50P23 * !87BL Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 194: Figure 5.7 Through-Fault Triggering, Duration, And Maximum Current

    Output Relay Word bit ISQTAL can be assigned to an output for annunciation or perhaps also be used to modify distribution feeder auto-reclosing (e.g., reduce the number of reclosures from 3 to 2). SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 195: Figure 5.8 Cumulative I 2 T Alarm (Relay Word Bit Isqtal)

    TFE A command. To list a particular number of through-fault events, execute the TFE n command (n = 1 to 1200; 1200 is the maximum number of through-fault events that can be stored before overwriting begins). Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 196 I t value that can then be preloaded for that phase. Use the previously discussed TFE P command to preload the cumulative I t values for each phase. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 197: Status Monitor

    ICW1 IAW2 IBW2 ICW2 IAW3 IBW3 ICW3 IAW4 IBW4 ICW4 +5V_PS +5V_REG -5V_REG +12V_PS -12V_PS +15V_PS -15V_PS 4.95 5.00 -5.07 11.98 -12.17 14.92 -14.91 TEMP CR_RAM EEPROM IO_BRD 41.1 Relay Enabled Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 198 Table 5.4 summarizes the limits for issuing warning or failure alarms during self-testing. The power supply and temperature alarms list the lower values below which, and upper values above which, the stated alarm is issued. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 199: Table 5.4 Self-Test Alarm Limits

    –15 V Power Supply –14.40/–15.60 Vdc –14.00/–16.00 Vdc Temperature –40/+85°C –50/+100°C Cannot READ/WRITE Flash ROM Bad Checksum Slow Conversion Critical RAM Bad Checksum EEPROM Bad Checksum IO_BRD Incorrect Interface Board Value Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
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  • Page 201: Section 6: Setting The Relay

    Port settings only. Thus, the corresponding Relay, Global, and Port settings sheets that follow in this section can also be used when making these settings via the front panel. Refer to Figure 8.8 for information on front-panel settings. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 202: Settings Changes Via The Serial Port

    (see Table 6.1), the relay is not disabled while it saves the new settings. The ALARM contact closes momentarily (for a b contact, opens for an a) but the EN LED remains on while the new settings are saved. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 203: Additional Relay Settings

    The inputs appear as elements of SEL control equations. OGIC Examples of this are illustrated in Trip and Close Logic on page 6.4. These settings can be different in the six settings groups. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 204 In the Close Logic setting area, inputs are defined to represent the 52a auxiliary contacts from the individual breakers. Defined as well are the four Close and four Unlatch Close variables, if the closing function is to be used. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 205 Winding 1 elements. Also, since tertiary circuits normally are short, probably only including the substation buses and auxiliary equipment, reports on faults of any kind would be of great interest. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 206 3 seconds. This function prevents the relay from jumping around from group to group in response to spurious fulfillment of the SS1 setting conditions and ensures that a request for change is real and justified. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 207 A-phase was involved in an overcurrent trip or that differential element 1 issued a trip. The user can define any SEL control equation to OGIC operate these targets by programming LEDA, LEDB, or LEDC. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 208 ® ® standard communications program such as Microsoft Windows ® HyperTerminal Complete information on the communications ports and necessary settings can be found in Section 7: Serial Port Communications and Commands. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 209: Default Settings

    = 65 MCS11 = 100.0 DTMP = 15 TRDE NTHM = THM1 OIL1 = THM2 TOT1 = 100 TOT2 = 100 HST1 = 200 HST2 = 200 (Continued on next page) Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 210 =/50P11 + /51P1 + /51Q1 + /51P2 + /51Q2 + /51P3 OUT101 =TRIP1 OUT102 =TRIP2 OUT103 =TRIP3 OUT104 =TRIP4 Press RETURN to continue OUT105 =CLS1 OUT106 =CLS2 OUT107 =CLS3 SCEUSE 46.8 GR1CHK A577 =>> SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 211 HST2 = 200 FAAL1 = 50.00 FAAL2 = 50.00 RLOLL = 50.00 TLOLL = 50.00 CSEP1 = 15 ILIFE = 180000 EDFTC TDURD = 9.000 = 60.000 (Continued on next page) Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 212: Settings Sheets

    (SET Command), followed by Global Settings (SET G Command), Sequential Events Recorder Settings (SET R Command), and Port Settings (SET P Command). ® You can download blank editable Microsoft Word settings sheets from the SEL website: selinc.com/literature/settings-sheets/. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 213: Sel-387-0, -5, -6 Relay Settings Sheets

    Date _______________ SEL-387-0, -5, -6 Relay Settings Sheets SET.1 of 35 Group Settings (SET Command) SEL-387-0, -5, -6 Relay Settings Sheets Group Settings (SET Command) Configuration Settings Relay Identifier (39 Characters) Terminal Identifier (59 Characters) Enable Winding 1 in Differential Element (Y, N, Y1)
  • Page 214 SET.2 of 35 SEL-387-0, -5, -6 Relay Settings Sheets Date________________ Group Settings (SET Command) Winding 3 CT Ratio (1–50000) CTR3 Winding 4 CT Ratio (1–50000) CTR4 Maximum Power Transformer Capacity (OFF, 0.2–5000 MVA) Define Internal CT Connection Compensation (Y, N) ICOM Winding 1 CT Conn.
  • Page 215 Fifth–Harmonic Alarm Threshold TH5P (OFF, (0.02–3.20) multiple of tap Fifth-Harmonic Alarm TDPU (0–8000 cycles) TH5D DC Ratio Blocking (Y, N) (all but SEL-387-0 Relay) DCRB Harmonic Restraint (Y, N) (all but SEL-387-0 Relay) HRSTR Independent Harmonic Blocking (Y, N) IHBL...
  • Page 216 SET.4 of 35 SEL-387-0, -5, -6 Relay Settings Sheets Date________________ Group Settings (SET Command) Phase Inv.-Time O/C PU (OFF, 0.5–16.0 A secondary) (5 A) (OFF, 0.1–3.2 A secondary) (1 A) 51P1P Phase Inv.-Time O/C Curve (U1–U5, C1–C5) 51P1C Phase Inv.-Time O/C Time-Dial (US 0.5–15.0, IEC 0.05–1.00) 51P1TD Phase Inv.-Time O/C EM Reset (Y, N)
  • Page 217 Date _______________ SEL-387-0, -5, -6 Relay Settings Sheets SET.5 of 35 Group Settings (SET Command) 50N11 Torque Control (SEL control equation) OGIC 50N11TC Residual Inst. O/C Level 2 PU (OFF, 0.25–100.00 A secondary) (5 A) (OFF, 0.05–20.00 A secondary) (1 A)
  • Page 218 SET.6 of 35 SEL-387-0, -5, -6 Relay Settings Sheets Date________________ Group Settings (SET Command) Phase Inst. O/C Level 2 PU (OFF, 0.25–100.00 A secondary) (5 A) (OFF, 0.05–20.00 A secondary) (1 A) 50P22P 50P22 Torque Control (SEL control equation) OGIC 50P22TC Phase Inst.
  • Page 219 Date _______________ SEL-387-0, -5, -6 Relay Settings Sheets SET.7 of 35 Group Settings (SET Command) Neg.-Seq. Inv.-Time O/C Time-Dial 51Q2TD (US 0.5–15.0, IEC 0.05–1.00) Neg.-Seq. Inv.-Time O/C EM Reset (Y, N) 51Q2RS 51Q2 Torque Control (SEL control equation) OGIC 51Q2TC Winding 2 Residual O/C Elements Residual Def.-Time O/C Level 1 PU...
  • Page 220 SET.8 of 35 SEL-387-0, -5, -6 Relay Settings Sheets Date________________ Group Settings (SET Command) Residual Demand Ammeter Threshold (0.5–16.0 A secondary) (5 A) (0.1–3.2 A secondary) (1 A) NDEM2P Winding 3 O/C Elements Winding 3 Phase O/C Elements Phase Def.-Time O/C Level 1 PU (OFF, 0.25–100.00 A secondary) (5 A)
  • Page 221 Date _______________ SEL-387-0, -5, -6 Relay Settings Sheets SET.9 of 35 Group Settings (SET Command) Neg.-Seq. Level 1 O/C Delay (0.5–16000.0 cycles) 50Q31D 50Q31 Torque Control (SEL control equation) OGIC 50Q31TC Neg.-Seq. Inst. O/C Level 2 PU (OFF, 0.25–100.00 A secondary) (5 A) (OFF, 0.05–20.00 A secondary) (1 A)
  • Page 222 SET.10 SEL-387-0, -5, -6 Relay Settings Sheets Date________________ of 35 Group Settings (SET Command) 51N3 Torque Control (SELOGIC control equation) 51N3TC Winding 3 Demand Metering Demand Ammeter Time Constant (OFF, 5–255 min) DATC3 Phase Demand Ammeter Threshold (0.5–16.0 A secondary) (5 A) (0.1–3.2 A secondary) (1 A)
  • Page 223 Date _______________ SEL-387-0, -5, -6 Relay Settings Sheets SET.11 of 35 Group Settings (SET Command) Phase Inv.-Time O/C Time-Dial (US 0.5–15.0, IEC 0.05–1.00) 51P4TD Phase Inv.-Time O/C EM Reset (Y, N) 51P4RS 51P4 Torque Control (SEL control equation) OGIC 51P4TC...
  • Page 224 SET.12 SEL-387-0, -5, -6 Relay Settings Sheets Date________________ of 35 Group Settings (SET Command) Residual Inst. O/C Level 2 PU (OFF, 0.25–100.00 A secondary) (5 A) (OFF, 0.05–20.00 A secondary) (1 A) 50N42P 50N42 Torque Control (SEL control equation) OGIC 50N42TC Residual Inv.-Time O/C PU...
  • Page 225 Date _______________ SEL-387-0, -5, -6 Relay Settings Sheets SET.13 of 35 Group Settings (SET Command) W1–W2 Phase Inv.-Time O/C Time-Dial 51PC1TD (US 0.5–15.0, IEC 0.05–1.00) W1–W2 Phase Inv.-Time O/C EM Reset (Y, N) 51PC1RS W1–W2 Residual O/C Element W1–W2 Residual Inv.-Time O/C PU (OFF, 0.5–16.0 A secondary) (5 A)
  • Page 226 SET.14 SEL-387-0, -5, -6 Relay Settings Sheets Date________________ of 35 Group Settings (SET Command) Winding Temp/Amb (65, 55) THwr Number of Cooling Stages (1–3) Cooling Stage 1 Rating (0.2–5000.0 MVA) MCS11 Cooling Stage 1 Rating (0.2–5000.0 MVA) MCS21 Cooling Stage 1 Rating (0.2–5000.0 MVA) MCS31 Cooling Stage 2 Rating (0.2–5000.0 MVA)
  • Page 227 Date _______________ SEL-387-0, -5, -6 Relay Settings Sheets SET.15 of 35 Group Settings (SET Command) Thermal Function Settings for SEL-387-6 Firmware Revisions R606 and Later Ambient Temperature (THM1…THM4, RTD1A…RTD12A, RTD1B…RTD12B) Top Oil Temperature 1 (THM1…THM4, RTD1A…RTD12A, RTD1B…RTD12B) OIL1 Top Oil Temperature 2 (THM1…THM4, RTD1A…RTD12A, RTD1B…RTD12B)
  • Page 228 SET.16 SEL-387-0, -5, -6 Relay Settings Sheets Date________________ of 35 Group Settings (SET Command) Cooling Stage 2 Constants Top-Oil Rise/Amb (0.1–100.0ºC) THor12 Hot-Spot Cond. Rise/Top Oil (0.1–100.0ºC) THgr12 Ratio Losses (0.0–100.0) RATL12 Oil Thermal Time Constant (0.1–20.0 hr) OTR12 Oil Exponent (0.1–5) EXPn12 Winding Exponent (0.1–5)
  • Page 229 Date _______________ SEL-387-0, -5, -6 Relay Settings Sheets SET.17 of 35 Group Settings (SET Command) Oil Thermal Time Constant (0.1–20.0 hr) OTR23 Oil Exponent (0.1–5) EXPn23 Winding Exponent (0.1–5) EXPm23 Transformer 3 Hot-Spot Thermal Time Constant (0.01–2.00 hr) Ths3 Constant to Calc. FAA (0–100000)
  • Page 230 SET.18 SEL-387-0, -5, -6 Relay Settings Sheets Date________________ of 35 Group Settings (SET Command) RTD 4A Alarm Temperature (OFF, 32–482°F) 49A04A RTD 4A Trip Temperature (OFF, 32–482°F) 49T04A RTD 5A Alarm Temperature (OFF, 32–482°F) 49A05A RTD 5A Trip Temperature (OFF, 32–482°F) 49T05A RTD 6A Alarm Temperature (OFF, 32–482°F)
  • Page 231 Date _______________ SEL-387-0, -5, -6 Relay Settings Sheets SET.19 Group Settings (SET Command) of 35 RTD 7B Alarm Temperature (OFF, 32–482°F) 49A07B RTD 7B Trip Temperature (OFF, 32–482°F) 49T07B RTD 8B Alarm Temperature (OFF, 32–482°F) 49A08B RTD 8B Trip Temperature (OFF, 32–482°F) 49T08B RTD 9B Alarm Temperature (OFF, 32–482°F)
  • Page 232 SET.20 SEL-387-0, -5, -6 Relay Settings Sheets Date________________ of 35 Group Settings (SET Command) Set 1 Latch Bit 1 SET Input (SEL control equation) OGIC S1SLT1 Set 1 Latch Bit 1 RESET Input (SEL control equation) OGIC S1RLT1 Set 1 Latch Bit 2 SET Input (SEL...
  • Page 233 Set 2 Latch Bit 4 RESET Input (SEL control equation) OGIC S2RLT4 Control Equations Set 3 OGIC (S3LT1 To S3LT8 are not included in the SEL-387-0 Relay) Set 3 Variable 1 (SEL control equation) OGIC S3V1 S3V1 Timer Pickup (0–999999 cycles) S3V1PU S3V1 Timer Dropout (0–999999 cycles)
  • Page 234 SET.22 SEL-387-0, -5, -6 Relay Settings Sheets Date________________ of 35 Group Settings (SET Command) S3V5 Timer Dropout (0–999999 cycles) S3V5DO Set 3 Variable 6 (SEL control equation) OGIC S3V6 S3V6 Timer Pickup (0–999999 cycles) S3V6PU S3V6 Timer Dropout (0–999999 cycles)
  • Page 235 Date _______________ SEL-387-0, -5, -6 Relay Settings Sheets SET.23 Group Settings (SET Command) of 35 Set 3 Latch Bit 6 RESET Input (SEL control equation) OGIC S3RLT6 Set 3 Latch Bit 7 SET Input (SEL control equation) OGIC S3SLT7 Set 3 Latch Bit 7 RESET Input (SEL...
  • Page 236 SET.24 SEL-387-0, -5, -6 Relay Settings Sheets Date________________ of 35 Group Settings (SET Command) Event Report Triggering Output Contact Logic (Standard Outputs) OUT101 OUT102 OUT103 OUT104 OUT105 OUT106 OUT107 Output Contact Logic (Extra Interface Board 2 or 6) OUT201 OUT202...
  • Page 237 Date _______________ SEL-387-0, -5, -6 Relay Settings Sheets SET.25 Global Settings (SET G Command) of 35 Global Settings (SET G Command) Relay Settings Length of Event Report (15, 30, 60 cycles) Length of Pre-fault in Event Report (1 to (LER-1))
  • Page 238 SET.26 SEL-387-0, -5, -6 Relay Settings Sheets Date________________ of 35 Global Settings (SET G Command) kA Interrupted Set Point 1 min (0.1–999.0 kA pri) B2KAP1 Close/Open Set Point 2 max (1–65000 operations) B2COP2 kA Interrupted Set Point 2 min (0.1–999.0 kA pri) B2KAP2 Close/Open Set Point 3 max (1–65000 operations)
  • Page 239 Date _______________ SEL-387-0, -5, -6 Relay Settings Sheets SET.27 Global Settings (SET G Command) of 35 Analog Input Labels Rename Current Input IAW1 (1–4 characters) IAW1 Rename Current Input IBW1 (1–4 characters) IBW1 Rename Current Input ICW1 (1–4 characters) ICW1 Rename Current Input IAW2 (1–4 characters)
  • Page 240 SET.28 SEL-387-0, -5, -6 Relay Settings Sheets Date________________ of 35 Global Settings (SET G Command) Show Display Point 1 (SEL control equation) OGIC DP1 Label 1 (16 characters) (Enter NA to Null) DP1_1 DP1 Label 0 (16 characters) (Enter NA to Null)
  • Page 241 Date _______________ SEL-387-0, -5, -6 Relay Settings Sheets SET.29 Global Settings (SET G Command) of 35 Show Display Point 9 (SEL control equation) OGIC DP9 Label 1 (16 characters) (Enter NA to Null) DP9_1 DP9 Label 0 (16 characters) (Enter NA to Null)
  • Page 242 SET.30 SEL-387-0, -5, -6 Relay Settings Sheets Date________________ of 35 Global Settings (SET G Command) Text Labels (All But SEL-387-0 Relay) Local Bit LB1 Name (14 characters) (Enter NA to Null) NLB1 Clear Local Bit LB1 Label (7 characters) CLB1...
  • Page 243 Date _______________ SEL-387-0, -5, -6 Relay Settings Sheets SET.31 of 35 Global Settings (SET G Command) Set Local Bit LB8 Label (7 characters) (Enter NA to Null) SLB8 Pulse Local Bit LB8 Label (7 characters) (Enter NA to Null) PLB8...
  • Page 244 SET.32 SEL-387-0, -5, -6 Relay Settings Sheets Date________________ of 35 Sequential Events Recorder Settings (SET R Command) Clear Local Bit LB16 Label (7 characters) (Enter NA to Null) CLB16 Set Local Bit LB16 Label (7 characters) (Enter NA to Null)
  • Page 245 Date _______________ SEL-387-0, -5, -6 Relay Settings Sheets SET.33 Port Settings (SET P Command) of 35 Port Settings (SET P Command) RTSCTS setting does not appear if PROTO = LMD or DNP. LMD PREFIX, ADDR, and SETTLE do NOTE: not appear if PROTO = SEL or DNP. See Appendix C: SEL Distributed Port Switch Protocol (LMD) for details on LMD protocol and see Appendix G: Distributed Network Protocol for details on DNP protocol.
  • Page 246 SET.34 SEL-387-0, -5, -6 Relay Settings Sheets Date________________ of 35 Port Settings (SET P Command) Port 3 (SET P 3) Rear Panel, EIA-232 Port Protocol (SEL, LMD, DNP) [RTDA, RTDB for SEL-387-5 andSEL-387-6 Relays only] PROTO LMD Prefix (@, #, $, %, &) PREFIX LMD Address (1–99)
  • Page 247 Date _______________ SEL-387-0, -5, -6 Relay Settings Sheets SET.35 Port Settings (SET P Command) of 35 RTD 2A Type (NA, PT100, NI100, NI120, CU10) RTD2TA RTD 3A Type (NA, PT100, NI100, NI120, CU10) RTD3TA RTD 4A Type (NA, PT100, NI100, NI120, CU10)
  • Page 248 This page intentionally left blank...

  • Page 249: Sel-387-0, -5, -6 Relay Settings Sheets Example

    Date _______________ SEL-387-0, -5, -6 Relay Settings Sheets Example SET.1 of 36 Group Settings (SET Command) SEL-387-0, -5, -6 Relay Settings Sheets Example Group Settings (SET Command) Configuration Settings Relay Identifier (39 Characters) = XFMR 1 Terminal Identifier (59 Characters)
  • Page 250 SET.2 of 36 SEL-387-0, -5, -6 Relay Settings Sheets Example Date________________ Group Settings (SET Command) Winding 1 CT Ratio (1–50000) CTR1 = 120; 600 (first value applies to a 5 A relay; second value applies to a 1A relay) Winding 2 CT Ratio (1–50000) CTR2 =240;...
  • Page 251 = OFF (OFF, (0.02–3.20) multiple of tap Fifth-Harmonic Alarm TDPU (0–8000 cycles) TH5D = 30 DC Ratio Blocking (Y, N) (all but SEL-387-0 Relay) DCRB Harmonic Restraint (Y, N) (all but SEL-387-0 Relay) HRSTR Independent Harmonic Blocking (Y, N) IHBL...
  • Page 252 SET.4 of 36 SEL-387-0, -5, -6 Relay Settings Sheets Example Date________________ Group Settings (SET Command) Phase Inst. O/C Level 3 PU (OFF, 0.25–100.00 A secondary) (5 A) 50P13P = 0.50 (OFF, 0.05–20.00 A secondary) (1 A) = 0.10 Phase Inst. O/C Level 4 PU (OFF, 0.25–100.00 A secondary) (5 A)
  • Page 253 Date _______________ SEL-387-0, -5, -6 Relay Settings Sheets Example SET.5 of 36 Group Settings (SET Command) 51Q1 Torque Control (SEL control equation) OGIC 51Q1TC Winding 1 Residual O/C Elements Residual Def.-Time O/C Level 1 PU (OFF, 0.25–100.00 A secondary) (5 A)
  • Page 254 SET.6 of 36 SEL-387-0, -5, -6 Relay Settings Sheets Example Date________________ Group Settings (SET Command) Winding 2 O/C Elements Winding 2 Phase O/C Elements Phase Def.-Time O/C Level 1 PU (OFF, 0.25–100.00 A secondary) (5 A) 50P21P = OFF (OFF, 0.05–20.00 A secondary) (1 A) = OFF Phase Level 1 O/C Delay (0–16000 cycles)
  • Page 255 Date _______________ SEL-387-0, -5, -6 Relay Settings Sheets Example SET.7 of 36 Group Settings (SET Command) Neg.-Seq. Inst. O/C Level 2 PU (OFF, 0.25–100.00 A secondary) (5 A) 50Q22P = OFF (OFF, 0.05–20.00 A secondary) (1 A) = OFF 50Q22 Torque Control (SEL...
  • Page 256 SET.8 of 36 SEL-387-0, -5, -6 Relay Settings Sheets Example Date________________ Group Settings (SET Command) Winding 2 Demand Metering Demand Ammeter Time Constant (OFF, 5–255 min) DATC2 = 15 Phase Demand Ammeter Threshold (0.5–16.0 A secondary) (5 A) PDEM2P = 7.0 (0.1–3.2 A secondary) (1 A)
  • Page 257 Date _______________ SEL-387-0, -5, -6 Relay Settings Sheets Example SET.9 of 36 Group Settings (SET Command) Phase Inv.-Time O/C PU (OFF, 0.5–16.0 A secondary) (5 A) 51P3P = 4.0 (OFF, 0.1–3.2 A secondary) (1 A) = 0.8 Phase Inv.-Time O/C Curve (U1–U5, C1–C5)
  • Page 258 SET.10 SEL-387-0, -5, -6 Relay Settings Sheets Example Date________________ of 36 Group Settings (SET Command) Residual Level 1 O/C Delay (0–16000 cycles) 50N31D 50N31 Torque Control (SEL control equation) OGIC 50N31TC Residual Inst. O/C Level 2 PU (OFF, 0.25–100.00 A secondary) (5 A)
  • Page 259 Date _______________ SEL-387-0, -5, -6 Relay Settings Sheets Example SET.11 of 36 Group Settings (SET Command) 50P41 Torque Control (SEL control equation) OGIC 50P41TC Phase Inst. O/C Level 2 PU (OFF, 0.25–100.00 A secondary) (5 A) 50P42P = OFF (OFF, 0.05–20.00 A secondary) (1 A)
  • Page 260 SET.12 SEL-387-0, -5, -6 Relay Settings Sheets Example Date________________ of 36 Group Settings (SET Command) Neg.-Seq. Inv.-Time O/C PU (OFF, 0.5–16.0 A secondary) (5 A) 51Q4P = 6.0 (OFF, 0.1–3.2 A secondary) (1 A) = 1.2 Neg.-Seq. Inv.-Time O/C Curve (U1–U5, C1–C5)
  • Page 261 Date _______________ SEL-387-0, -5, -6 Relay Settings Sheets Example SET.13 Group Settings (SET Command) of 36 Neg.-Seq. Demand Ammeter Threshold (OFF, 0.5–16.0 A secondary) (5 A) QDEM4P = 1.0 (OFF, 0.1–3.2 A secondary) (1 A) = 0.2 Residual Demand Ammeter Threshold (OFF, 0.5–16.0 A secondary) (5 A)
  • Page 262 SET.14 SEL-387-0, -5, -6 Relay Settings Sheets Example Date________________ of 36 Group Settings (SET Command) W3–W4 Phase Inv.-Time O/C Time-Dial 51PC2TD = 3.00 (US 0.5–15.0, IEC 0.05–1.00) W3–W4 Phase Inv.-Time O/C EM Reset (Y, N) 51PC2RS W3–W4 Residual O/C Element W3–W4 Residual Inv.-Time O/C PU...
  • Page 263 Date _______________ SEL-387-0, -5, -6 Relay Settings Sheets Example SET.15 Group Settings (SET Command) of 36 Cooling Stage 3 (SEL control equation) OGIC CS13S Cooling Stage 3 (SEL control equation) OGIC CS23S Cooling Stage 3 (SEL control equation) OGIC CS33S Default Ambient Temp.
  • Page 264 SET.16 SEL-387-0, -5, -6 Relay Settings Sheets Example Date________________ of 36 Group Settings (SET Command) Cooling System Efficiency-Transformer 2 (5–100ºC) CSEP2 = 15 Cooling System Efficiency-Transformer 3 (5–100ºC) CSEP3 = 15 General Cooling System Constants Nominal Insulation Life (1000–999999 hr)
  • Page 265 Date _______________ SEL-387-0, -5, -6 Relay Settings Sheets Example SET.17 of 36 Group Settings (SET Command) Hot-Spot Cond. Rise/Top Oil (0.1–100.0ºC) THgr21 = 25.0 Ratio Losses (0.0–100.0) RATL21 = 3.2 Oil Thermal Time Constant (0.1–20.0 hr) OTR21 = 3.0 Oil Exponent (0.1–5) EXPn21 = 0.8...
  • Page 266 SET.18 SEL-387-0, -5, -6 Relay Settings Sheets Example Date________________ of 36 Group Settings (SET Command) Winding Exponent (0.1–5) EXPm32 = 0.9 Cooling Stage 3 Constants Top-Oil Rise/Amb (0.1–100.0ºC) THor33 = 45.0 Hot-Spot Cond. Rise/Top Oil (0.1–100.0ºC) THgr33 = 35.0 Ratio Losses (0.0–100.0) RATL33 = 6.5...
  • Page 267 Date _______________ SEL-387-0, -5, -6 Relay Settings Sheets Example SET.19 Group Settings (SET Command) of 36 RTD 12A Alarm Temperature (OFF, 32–482°F) 49A12A = OFF RTD 12A Trip Temperature (OFF, 32–482°F) 49T12A = OFF RTD B Elements (SEL-387-5 and SEL-387-6 Relays Only) RTD 1B Alarm Temperature (OFF, 32–482°F)
  • Page 268 SET.20 SEL-387-0, -5, -6 Relay Settings Sheets Example Date________________ of 36 Group Settings (SET Command) Control Equations Set 1 OGIC Set 1 Variable 1 (SEL control equation) OGIC S1V1 S1V1 Timer Pickup (0–999999 cycles) S1V1PU = 0.000 S1V1 Timer Dropout (0–999999 cycles) S1V1DO = 0.000...
  • Page 269 Date _______________ SEL-387-0, -5, -6 Relay Settings Sheets Example SET.21 Group Settings (SET Command) of 36 Control Equations Set 2 OGIC Set 2 Variable 1 (SEL control equation) OGIC S2V1 S2V1 Timer Pickup (0–999999 cycles) S2V1PU = 0.000 S2V1 Timer Dropout (0–999999 cycles) S2V1DO = 0.000...
  • Page 270 SEL-387-0, -5, -6 Relay Settings Sheets Example Date________________ of 36 Group Settings (SET Command) Control Equations Set 3 OGIC (S3LT1 To S3LT8 are not included in the SEL-387-0 Relay) Set 3 Variable 1 (SEL control equation) OGIC S3V1 S3V1 Timer Pickup (0–999999 cycles) S3V1PU = 0.000...
  • Page 271 Date _______________ SEL-387-0, -5, -6 Relay Settings Sheets Example SET.23 Group Settings (SET Command) of 36 Set 3 Latch Bit 1 SET Input (SEL control equation) OGIC S3SLT1 Set 3 Latch Bit 1 RESET Input (SEL control equation) OGIC S3RLT1...
  • Page 272 SET.24 SEL-387-0, -5, -6 Relay Settings Sheets Example Date________________ of 36 Group Settings (SET Command) = 87R + 87U ULTR1 = !50P13 ULTR2 = !50P23 ULTR3 = !50P33 ULTR4 = !(50P13 + 50P23 + 50P33) ULTR5 Close Logic 52A1 = IN101...
  • Page 273 Date _______________ SEL-387-0, -5, -6 Relay Settings Sheets Example SET.25 Global Settings (SET G Command) of 36 OUT205 OUT206 OUT207 OUT208 OUT209 OUT210 OUT211 OUT212 Output Contact Logic (Extra Interface Board 4) OUT201 OUT202 OUT203 OUT204 Global Settings (SET G Command)
  • Page 274 SET.26 SEL-387-0, -5, -6 Relay Settings Sheets Example Date________________ of 36 Global Settings (SET G Command) Breaker 1 Monitor BKR1 Trigger Equation (SEL control equation) OGIC BKMON1 = TRIP1 + TRIP4 Close/Open Set Point 1 max (1–65000 operations) B1COP1 = 10000 kA Interrupted Set Point 1 min (0.1–999.0 kA pri)
  • Page 275 Date _______________ SEL-387-0, -5, -6 Relay Settings Sheets Example SET.27 Global Settings (SET G Command) of 36 Close/Open Set Point 2 max (1–65000 operations) B4COP2 = 160 kA Interrupted Set Point 2 min (0.1–999.0 kA pri) B4KAP2 = 8.0 Close/Open Set Point 3 max (1–65000 operations)
  • Page 276 SET.28 SEL-387-0, -5, -6 Relay Settings Sheets Example Date________________ of 36 Global Settings (SET G Command) Select Setting Group 4 (SEL control equation) OGIC Select Setting Group 5 (SEL control equation) OGIC Select Setting Group 6 (SEL control equation) OGIC...
  • Page 277 Date _______________ SEL-387-0, -5, -6 Relay Settings Sheets Example SET.29 Global Settings (SET G Command) of 36 Show Display Point 6 (SEL control equation) OGIC DP6 Label 1 (16 characters) (Enter NA to Null) DP6_1 DP6 Label 0 (16 characters) (Enter NA to Null)
  • Page 278 SET.30 SEL-387-0, -5, -6 Relay Settings Sheets Example Date________________ of 36 Global Settings (SET G Command) Show Display Point 14 (SEL control equation) OGIC DP14 DP14 Label 1 (16 characters) (Enter NA to Null) DP14_1 DP14 Label 0 (16 characters) (Enter NA to Null)
  • Page 279 Date _______________ SEL-387-0, -5, -6 Relay Settings Sheets Example SET.31 Global Settings (SET G Command) of 36 Pulse Local Bit LB5 Label (7 characters) (Enter NA to Null) PLB5 Local Bit LB6 Name (14 characters) (Enter NA to Null) NLB6...
  • Page 280 SET.32 SEL-387-0, -5, -6 Relay Settings Sheets Example Date________________ of 36 Sequential Events Recorder Settings (SET R Command) Pulse Local Bit LB13 Label (7 characters) (Enter NA to Null) PLB13 Local Bit LB14 Name (14 characters) (Enter NA to Null)
  • Page 281 Date _______________ SEL-387-0, -5, -6 Relay Settings Sheets Example SET.33 Port Settings (SET P Command) of 36 ALIAS12 = NA ALIAS13 = NA ALIAS14 = NA ALIAS15 = NA ALIAS16 = NA ALIAS17 = NA ALIAS18 = NA ALIAS19 = NA...
  • Page 282 SET.34 SEL-387-0, -5, -6 Relay Settings Sheets Example Date________________ of 36 Port Settings (SET P Command) LMD Settling Time (0–30 seconds) SETTLE Baud (300, 1200, 2400, 4800, 9600, 19200) SPEED = 2400 Data Bits (7, 8) BITS Parity Odd, Even, or None (O, E, N)
  • Page 283 Date _______________ SEL-387-0, -5, -6 Relay Settings Sheets Example SET.35 Port Settings (SET P Command) of 36 Stop Bits (1, 2) STOP Time-out (for inactivity) (0–30 minutes) T_OUT Send auto messages to port (Y, N) AUTO Enable hardware handshaking (Y, N)
  • Page 284 SET.36 SEL-387-0, -5, -6 Relay Settings Sheets Example Date________________ of 36 Port Settings (SET P Command) RTD 10B Type (NA, PT100, NI100, NI120, CU10) RTD10TB = RTD 11B Type (NA, PT100, NI100, NI120, CU10) RTD11TB = RTD 12B Type (NA, PT100, NI100, NI120, CU10)

  • Page 285: Section 7: Serial Port Communications And Commands

    Data Bits = 8 ➤ Parity = N ➤ Stop Bit = 1 ➤ RTS/CTS = N Change the port settings, using the front panel or the SET P <Enter> command. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 286: Table 7.1 Serial Port Pin Definitions

    SEL has no be used for relay communication. Table 7.2 lists cables that can be purchased control. from SEL for various communication applications. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 287: Table 7.2 Sel-387 Communication Cable Numbers

    Call the factory for further information on these products. The following cable diagrams show several types of EIA-232 serial communications cables. These and other cables are available from SEL. Contact the factory for more information. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 288 9-Pin Female "D" Subconnector "D" Subconnector Func. Func. Cable C227A *DTE Device SEL-387 Relay 9-Pin Male 25-Pin Female "D" Subconnector "D" Subconnector Func. Func. *DTE = Data Terminal Equipment (Computer, Terminal, etc.) SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 289 *DCE Device 9-Pin Male 25-Pin Male "D" Subconnector "D" Subconnector Func. Func. TXD (IN) DTR (IN) RXD (OUT) CD (OUT) +5 VDC PWR (IN) *DCE = Data Communications Equipment (Modem, etc.) Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 290: Table 7.3 Serial Communications Port Pin Function Definitions

    RXD, RX Receive Data TXD, TX Transmit Data +(–)IRIG-B IRIG-B Time-Code Input Ground SHIELD Shielded Ground Request to Send Clear to Send Data Carrier Detect Data Terminal Ready Data Set Ready SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 291: Communications Protocol

    ➤ You may truncate commands to the first three characters. EVENT 1 <Enter> would become EVE 1 <Enter>. ➤ Upper- and lowercase characters may be used without distinction, except in passwords. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 292 Select the protocol by setting PROTOCOL = LMD, a SET P setting. See Appendix C: SEL Distributed Port Switch Protocol (LMD) for more information. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 293: Sel Ascii Protocol Details

    Serial Port Communications and Commands SEL ASCII Protocol Details SEL Distributed Network Protocol (Not Available in the SEL-387-0) SEL Distributed Network Protocol (DNP) meets DNP3 Level 2 requirements. Select the protocol by setting PROTOCOL = DNP, a SET P setting. See Appendix G: Distributed Network Protocol for more information.
  • Page 294 Time: 15:03:53.409 STATION A Event: TRIG Targets: Winding 1 Currents (A Sec), ABC: Winding 2 Currents (A Sec), ABC: Winding 3 Currents (A Sec), ABC: Winding 4 Currents (A Sec), ABC: =>> SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 295 After issuing the ACC command and entering the password, if it is required [see PAS (Passwords) on page 7.22 for default factory passwords], the relay is in Access Level 1. The prompt for Access Level 1 appears ( => Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 296 R_S command. The relay is calibrated at the factory and will not need field calibration. Contact the factory if you suspect the relay is not calibrated. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 297: Figure 7.2 Access Level Relationship

    THERMAL R THERMAL R THERMAL T THERMAL T THERMAL T TIME TIME TIME TRIGGER TRIGGER TRIGGER QUIT QUIT QUIT QUIT ACCESS ACCESS ACCESS ACCESS LEVEL 0 Figure 7.2 Access Level Relationship Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 298 Level B is shown in the table under PAS (Passwords) on page 7.22. Use the PASSWORD command from Access Level 2 to change this password. Install main board jumper JMP6A to disable password protection. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 299 The BRE R n command resets the trip counter, trip current data and contact wear percentages for Breaker n. Issue BRE R A to reset all Breaker Monitors at one time. Use the BRE command to verify resetting of the data. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 300 Ly specifies the report length in cycles. The y value can be from 1 to the LER setting. Default is 15 cycles. Ly- specifies reporting from cycle y to the end of the report. Ly-w specifies reporting from cycle y to cycle w. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 301 =>>COP 1 3 <Enter> COPY 1 to 3 Are you sure (Y/N) ? Y <Enter> Please wait... Settings copied =>> Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 302 ALARM output contacts and generates the momentarily while the change in following automatic message: groups takes place. XFMR 1 Date: 03/13/97 Time: 14:33:49.109 STATION A Active Group = 2 =>> SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 303 It can be even longer if the relay is busy processing a possibility of wearing out the nonvolatile memory. Limit automated HIS C commands to once per week or less. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 304 Access Levels 1 and B. If the number or type of interface boards has changed since last power up, INITIO will confirm that the interface boards present are correct from Access Level 2. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 305: Table 7.4 Met Command Choices

    MET XXX report n times. For example, to display a series of eight meter readings, type MET 8 <Enter>. If the Analog Input Label settings (IAW1, etc.) have been renamed, these will appear in the report as set. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 306 OTTER installation. Failure to change each default password to a private EDITH password may allow unauthorized access. SEL shall not be responsible TAIL for any damage resulting from unauthorized access. CLARKE SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 307: Table 7.5 Valid Password Characters

    Confirm New Password: ****** Password Changed =>> CAUTION: This password can be strengthened. Strong passwords do not include a name, date, acronym, or word. They consist of the maximum allowable characters, with Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 308 , it will abort the command. If , it will respond All Time- . This command is not likely Overcurrent Element Accumulators Cleared to have much use in normal in-service relay operation. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 309 ➤ TERSE eliminates the display of the group settings at the end of the setting procedure. The command will function properly if just TE is entered, instead of the full word. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 310: Table 7.6 Editing Keys For Set Commands

    While the active settings are updated, the relay is disabled, the ALARM output contacts SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 311 The command will function properly if just TE is entered, instead of the full word. The SET P procedure works just like the SET procedure. Table 7.6 lists the editing keys that you can use with the SET command. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 312: Table 7.7 Settings For Each Communication Port

    SET command. Refer to Section 6: Setting the Relay for setting worksheets. Refer to Section 9: Event Reports and SER for more details on default settings and data retrieval. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 313 = U2 51Q1TD = 3.00 51Q1RS 51Q1TC 50N11P = OFF 50N12P = OFF 51N1P = OFF DATC1 = 15 PDEM1P = 1.40 QDEM1P = 0.20 NDEM1P = 0.20 (Continued on next page) Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 314 =/50P11 + /51P1 + /51Q1 + /51P2 + /51Q2 + /51P3 OUT101 =TRIP1 OUT102 =TRIP2 OUT103 =TRIP3 OUT104 =TRIP4 Press RETURN to continue OUT105 =CLS1 OUT106 =CLS2 OUT107 =CLS3 SCEUSE 46.8 GR1CHK A526 =>> SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 315 =ICW4 Press RETURN to continue LEDA =OCA + 87E1 LEDB =OCB + 87E2 LEDC =OCC + 87E3 =IN101 DP1_1 =BREAKER 1 CLOSED DP1_0 =BREAKER 1 OPEN =IN102 (Continued on next page) Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 316 (1, 2, 3, or 4). Default is the port issuing the command. ➤ Setting specifies the setting name with which to begin. The default is the first setting. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 317 =OUT103 B3TRIP ALIAS6 =OUT107 B3CLOSE ALIAS7 ALIAS8 ALIAS9 ALIAS10 =NA ALIAS11 =NA ALIAS12 =NA ALIAS13 =NA ALIAS14 =NA ALIAS15 =NA ALIAS16 =NA ALIAS17 =NA ALIAS18 =NA ALIAS19 =NA ALIAS20 =NA =>> Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 318 The default row number returns to 0 when the port times out, the QUIT command is executed, TAR 0 command is executed, or the TAR R command is executed. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 319 TAR 0 command is executed, or the TAR R command is executed. The front-panel LEDs remain remapped until the front panel times out, the TAR R command is executed, or the {TARGET RESET} pushbutton is pushed. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 320: Table 7.8 Tfe Command Choices

    There are several choices for the THE command, listed briefly below. Refer to Section 5: Metering and Monitoring for a complete description of the thermal monitoring reports. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 321: Table 7.9 The Command Choices

    (e.g., testing or commissioning). The event type is recorded as TRIG any time the TRI command is issued. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 322: Table 7.10 Commands With Alarm Conditions

    Table 7.11 lists all jumpers you should be concerned with and their effects. Table 7.11 Main Board Jumpers Jumper Comment JMP6A Disables password protection when installed JMP6B Enables CLO, OPE, and PUL commands when installed SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 323: Sel-387 Relay Command Summary

    Display demand metering data, in primary amperes. Enter number k to scroll metering k times on screen. MET DIF k Display differential metering data, in multiples of TAP. Enter number k to scroll metering k times on screen. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 324 Displays cumulative and individual through-fault event data. All the most recent individual events are displayed, up to 1200. TFE C Clears/resets cumulative and individual through-fault event data. TFE P Preloads cumulative through-fault event data. TFE R Clears/resets cumulative and individual through-fault event data. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 325 Show differential element 2 event report number n, with 1/4-cycle resolution. Attach S8 for 1/8-cycle resolution. EVE DIF3 n Show differential element 3 event report number n, with 1/4-cycle resolution. Attach S8 for 1/8-cycle resolution. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 326 Show Relay Word row n status (n = 0 through 41). Enter number k to scroll Relay Word row n status k times on screen. Append F to display targets on the front panel second row of LEDs. TAR R Return front-panel LED targets to regular operation and reset the tripping front-panel targets. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 327 CLO n Assert the CCn Relay Word bit. Used to close breaker n if CCn is assigned to an output contact. JMP6B has to be in place to enable this command. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 328 Assert the OCn Relay Word bit. Used to open breaker n if OCn is assigned to an output contact. JMP6B has to be in place to enable this command. Show existing Access Level 1, B, and 2 passwords. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 329 Displays cumulative and individual through-fault event data. All the most recent individual events are displayed, up to 1200. TFE C Clears/resets cumulative and individual through-fault event data. TFE P Preloads cumulative through-fault event data. TFE R Clears/resets cumulative and individual through-fault event data. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 330 SEL-2020 Communications Processor. Show or set time (24 hour time). Show time presently in the relay by entering just TIM. Example time 22:47:36 is entered with command TIM 22:47:36. Trigger an event report. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 331: Section 8: Front-Panel Interface

    TAR F command will not be reset to the default targets. Reset FP_TO to some nonzero value, then push any button—the relay will not revert to the new value of FP_TO until a button has been pushed. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 332 The two-line current display for a Winding “n” is turned off if both of the settings E87Wn and EOCn are set to “N.” Each display (except for the SEL-387-0) remains for Global setting SCROLD (seconds) before scrolling continues. Any message generated by the relay due to an alarm condition takes precedence over the normal default display.

  • Page 333: Pushbuttons

    While within the METER menu structure, the {CANCEL} pushbutton will take the user back to the previous menu. The {EXIT} pushbutton will take the user out of METER and back to the default display. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 334 The Analog Input Label names are not used in this display. Current information is simply listed, for example, as followed by A B C and the magnitudes. There may be more than 75 event summaries in the SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 335 Push {CANCEL} to return to the main menu. Push {EXIT} to return to the OTHER default display. Figure 8.7, at the end of this section, shows the full menu and OTHER/BKR display structure. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 336 Exit. Press the {EXIT} key to leave Scroll Lock Control and return the rotating display to normal operation. Cancel. Press the {CANCEL} key to return to the menu. OTHER SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 337 To show or set relay settings, press the {SET} button. There are four set/show options: , and . Use the right/left arrow keys and GROUP GLOBAL PORT PASS {SELECT} to choose. These will be discussed in alphabetical order. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 338 {TARGET RESET} pushbutton provides the user with a short description of the setting and the range of values, should the user not recognize the setting by its Character string name. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 339 This command is roughly equivalent to the SET P and SHO P serial port commands. When is selected, a menu appears for selecting which of the PORT four port setting groups to . Use the right/left arrow keys and Show Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 340: Figure 8.2 Local Control Switch Configured As An On/Off Switch

    {CANCEL} can be used to return to an earlier menu. {EXIT} will abort the command and return to the default display. PORT CNTRL (Not Included in SEL-387-0) Use local control to enable/disable schemes, trip/close breakers, and so on, via the front panel. Local Control...

  • Page 341: Table 8.1 Correspondence Between Local Control Switch Positions And Label Settings

    ON/OFF/MOMENTARY Disable local control switches by “nulling out” all the label settings for that switch. The local bit associated with this disabled local control switch is then fixed at logical 0. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 342 OFF/MOMENTARY switches (see Figure 8.4). There are no more local control switches in the factory default settings. Press the right arrow pushbutton and scroll to the Output Contact Testing function. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 343 MANUAL TRIP 1 Local Control State Retained When Relay De-Energized Local bit states are stored in nonvolatile memory, so when power to the relay is turned off, the local bit states are retained. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 344 Contact operate timing can thus be easily analyzed. GROUP The {GROUP} function is identical to the GRO and GRO n (n = 1 to 6) serial port commands. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 345 If the {EXIT} pushbutton is pushed while the relay is in the default display mode, the relay interprets the button as the {GROUP} pushbutton. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 346: Programmable Leda, Ledb, Ledc

    For testing or other purposes, however, these programmable LEDs can be very helpful for identifying conditions, defined by SEL control equations, that are of OGIC interest to the user. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 347: Rotating Default Display

    The optoisolated input IN102 is energized when the 52a circuit breaker auxiliary contact is closed, resulting in: IN102 = logical 1 DP2 = This results in the display of corresponding text setting DP2_1 on the front- panel display. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 348 Display Points reflect actual settings and values in the relay and are in addition to the programmable text discussed previously. The relay displays these settings and metering quantities on the rotating default display. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 349 (;;;) and overcurrent element number shown in Table 8.4. You can vary the number of label characters in the prelabel and the postlabel as long as the sum does not exceed the maximum. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 350: Table 8.4 Dynamic Display Same-Line Overcurrent Elements

    Dual-Line Setting Example Enter the following settings for a dual-line display: DP1_0 = Brkr 1 Trips at DP2_0 = ::51P1P DP1 = DP2 = SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 351 Some of these display elements match internal Relay Word bits, and other display elements have mnemonics that represent the dynamic display quantity. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 352: Table 8.5 Dynamic Display Mnemonics

    Bkr1 internal trip IB INTICW1 Bkr1 internal trip IC EXTTRB1 Bkr1 external trip count EXTIAW1 Bkr1 external trip IA EXTIBW1 Bkr1 external trip IB EXTICW1 Bkr1 external trip IC WEARAB1 Bkr1 A-phase wear monitor SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 353 If no button is pressed for eight seconds, the reminder message will appear for one second, followed by the active screen. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 354 {SELECT} pushbutton a second time to freeze scrolling. Exit Press the {EXIT} pushbutton to leave and return the Scroll Lock Control rotating display to normal operation. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 355: Figures Of Selected Front-Panel Menu Structures

    12.3 12.3 12.3 IRW1 PK= 1234 mmddyy hh:mm:ss I1F2 I2F2 I3F2 12.3 12.3 12.3 Last Reset From mmddyy hh:mm:ss I1F5 I2F5 I3F5 12.3 12.3 12.3 Figure 8.5 METER Menu and Display Structure Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 356: Figure 8.6 Events Display Structure

    12.3 12.3 12.3 n W4 A 12.3 12.3 12.3 Where n = event number m = group number Note: If secondary currents > 99.9, drop the decimal place. Figure 8.6 EVENTS Display Structure SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 357: Figure 8.7 Other / Bkr Menu And Display Structure

    Reset Bkr W1 999ex 12345kA Yes No P3 999in 12345kA 999ex 12345kA %wear P1 [default display] 100 100 100 Last Reset From mmddyy hh:mm:ss Figure 8.7 OTHER / BKR Menu and Display Structure Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 358: Figure 8.8 Set Menu And Display Structure

    Exit Settings ←→ Save Changes Save Changes Yes No Yes No Yes No Yes No Exit Settings ←→ Exit Settings ←→ Yes No Yes No Figure 8.8 SET Menu and Display Structure SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 359: Section 9: Event Reports And Ser

    512 lines of the SER report in nonvolatile memory. If the report fills up, newer rows overwrite the oldest rows in the report. See Figure 9.8 for an example SER report. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 360: Standard 15-, 30-, Or 60-Cycle Event Reports

    1 transition, it generates an event report (if it is not already generating a report that encompasses the new transition). The factory setting is: /50P11 + /51P1 + /51Q1 + /51P2 + /51Q2 + /51P3 ER = SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 361 15-, 30-, or 60-cycle event report, and triggers. the other information follows at the end. See Figure 9.2. The example event summary in Figure 9.1 corresponds to the full-length standard 15-cycle event report in Figure 9.2. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 362: Table 9.1 Event Types

    Event: Targets The target field shows all front-panel targets that were illuminated at the end of the triggered event report. The targets include: TRIP INST 87-1 87-2 , and 87-3 SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 363 Ly–w = Displays from cycle y to cycle w Refer to Figure 9.2 for an example winding event report. This example event report displays rows of information each quarter-cycle and was retrieved with the EVE <Enter> command. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 364: Table 9.2 Winding Event Report Current Columns

    Current measured by Winding 4 input channel IB (Amps, secondary) ICW4 Current measured by Winding 4 input channel IC (Amps, secondary) Table 9.3 summarizes the winding event report output and input columns. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 365: Table 9.3 Winding Event Report Output And Input Columns

    Ly–w Displays from cycle y to cycle w Refer to Figure 9.3 for an example digital event report. This example event report displays rows of information each quarter-cycle and was retrieved with the EVE D <Enter> command. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 366: Table 9.4 Digital Event Report Column Description

    50B13 asserted 50B34 50B14 asserted 50B13 and 50B14 asserted Winding 1 50C13 asserted 50C34 50C14 asserted 50C13 and 50C14 asserted Winding 1 50N11 asserted 50N1 50N11T asserted Winding 1 50N12 asserted 50N2 SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 367 DC3 asserted DC4 asserted DC3 and DC4 asserted TRP 12 TRIP1 asserted TRIP2 asserted TRIP1 and TRIP2 asserted TRP 34 TRIP3 asserted TRIP4 asserted TRIP3 and TRIP4 asserted TRP 5 TRIP5 asserted Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 368 TRIPn (n = 1, 2, 3, 4, and 5), the SEL control equation Timed Variables OGIC and Latch Bits, eight of the 16 Remote Bits, the eight digital outputs, and the six optoisolated inputs are shown. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 369: Figure 9.4 Example Differential Event Report

    Event Summary currents. The character when both conditions occur for the same row. > Table 9.5 summarizes the event report current columns. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 370: Table 9.5 Differential Event Report Current Columns

    Timing 1 cycle to reset after REFP assertion Reset TRP 12 TRIP1 asserted TRIP2 asserted TRIP1 and TRIP2 asserted TRP 34 TRIP3 asserted TRIP4 asserted TRIP3 and TRIP4 asserted TRP 5 TRIP5 asserted SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 371 OUT101 and OUT102 asserted OUT 34 OUT103 asserted OUT104 asserted OUT103 and OUT104 asserted OUT 56 OUT105 asserted OUT106 asserted OUT105 and OUT106 asserted OUT 7A OUT107 asserted ALARM asserted OUT107 and ALARM asserted Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 372 EVE R S4 <Enter> command. The raw event report always shows 1.5 cycles of pretrigger data, in this case six samples instead of four. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 373: Table 9.7 Raw Winding Event Report Current Columns

    Current measured by Winding 3 input channel IB (Amps, secondary) ICW3 Current measured by Winding 3 input channel IC (Amps, secondary) IAW4 Current measured by Winding 4 input channel IA (Amps, secondary) Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 374: Table 9.8 Raw Winding Event Report Outputs And Inputs

    Filtered Event and rms magnitude values. Figure 9.7 shows how the event report current column data can be converted to phasor rms values. Reports SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 375: Figure 9.6 Derivation Of Event Report Current Values And Rms Current Values From Sampled Current Waveform

    2748 A, rms. The true rms value is shown as IA times 1/sqrt(2) = 3887 • peak 0.707 = 2748 A. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 376: Figure 9.7 Derivation Of Phasor Rms Current Values From Event Report Current Values

    Event Report. In Figure 9.7 at the present sample the phasor rms current value is:  2749 A 30.0 – Equation 9.1 SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 377: Sequential Events Recorder (Ser) Event Report

    Relay Word bits in the SER report, to make the entries more readily identifiable to the user. The settings are ALIAS1 to ALIAS20. If they are not set, they are listed as, for example, ALIAS1 = NA. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 378: Table 9.9 Different Ser Event Report Responses

    (row 33) at the beginning (top) of the report and the latest row (row 10) at the end (bottom) of the report. Chronological progression through the report is down the page and in descending row number. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 379 SER C commands to once per week or The process of clearing SER event reports may take up to 30 seconds under less. normal operation or longer if the relay is busy processing a fault or protection logic. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 380 This page intentionally left blank...

  • Page 381: Section 10: Testing And Troubleshooting

    Programmable Outputs Programmable outputs allow you to isolate individual relay elements. Refer to the SET command. For more information on these features and commands, see Section 7: Serial Port Communications and Commands. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 382 For example, the Winding 1 phase definite-time overcurrent element 50P11 appears in Relay Word Row 2. When you type the command TAR F 50P11 <Enter>, the terminal displays the labels and status for each bit in the Relay SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 383: Acceptance Testing

    Ensure that the relay meets the requirements of the intended application. ➤ Gain familiarity with relay settings and capabilities. What to test: All protection elements and logic functions critical to the intended application. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 384: Figure 10.2 Relay Part Number And Hardware Identification Sticker

    Other power supplies require dc voltage and are polarity sensitive. Step 2. Purpose: Verify that +5 Vdc is presented on SERIAL PORTS 2 and 3. This voltage is sometimes required by external devices that include a dc-powered modem. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 385 At the prompt, enter the Access Level 1 password and press <Enter>. (See PAS (Passwords) on page 7.22 for a table of factory default passwords.) The prompt => should appear, indicating that you have established communications at Access Level 1. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 386 = 4.00 51P3P = 4.00 51P3C = U2 51P3TD = 1.30 51P3RS 51P3TC 50Q31P = OFF 50Q32P = OFF 51Q3P = OFF 50N31P = OFF 50N32P = OFF 51N3P = OFF SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 387 Set the target LEDs to display the contact outputs by typing TAR F OUT101 <Enter>. The front-panel LEDs should now follow Row 41 of the Relay Word where OUT101 is listed. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 388 Connect the A-phase and B-phase current sources to the dotted A and B current input terminals. c. Connect both undotted A and B current input terminals to the undotted C current input terminal. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 389: Figure 10.3 Test Connections For Balanced Load With Three-Phase Current Sources

    Source 2 Source 3 Source 1 IAW1 IBW1 ICW1 IAW2 IBW2 ICW2 IAW3 IBW3 ICW3 IAW4 IBW4 ICW4 SEL-387 (partial) Figure 10.3 Test Connections for Balanced Load With Three-Phase Current Sources Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 390: Figure 10.4 Test Connections For Balanced Load With Two-Phase Current Sources

    50P11), causing the LED to illuminate (i.e., left-most). Note the magnitude of the current applied. It should equal the 50P1P setting ±5% of the setting ±0.02 I (negative-sequence elements are ±6% of the setting ±0.02 I SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 391: Table 10.2 Instantaneous Overcurrent Elements And Corresponding Settings

    Neg-Seq Level 1 50Q11 50Q11P 50Q21 50Q21P 50Q31 50Q31P 50Q41 50Q41P Neg-Seq Level 2 50Q12 50Q12P 50Q22 50Q22P 50Q32 50Q32P 50Q42 50Q42P Neg-Seq Inverse-Time 51Q1 51Q1P 51Q2 51Q2P 51Q3 51Q3P 51Q4 51Q4P Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 392 51P1) to the assertion of the time-delayed element (i.e., additional tests, enter the RESET <Enter> command from the relay serial 51P1T). SER C clears the SER records. port. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 393: Table 10.3 Time-Delayed Overcurrent Elements And Corresponding Settings

    Test the instantaneous and time-delayed phase overcurrent elements by applying current to the inputs and comparing relay operation to the phase overcurrent settings. These tests were previously outlined in this section. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 394 Method: a. Execute the SET command via the relay serial port and set the desired torque-control equation to the desired condition. For a test example, a digital input is used. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 395 The test configuration is that shown in Figure 10.5, with two sources delivering current to the same phase of Windings 1 and 2, or Windings 3 and 4. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 396 51PC1 and 51PC1T will appear in the second row of LEDs, in the A and B positions, during the tests. Before the test, LED C should be lit, representing bit 51PC1R (reset). SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 397 Subtract the time of the assertion of the pickup (i.e., 51PC1) from the assertion time of the time-out bit (i.e., 51PC1T). This is the operate time. SER C clears the SER records. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 398 M = 2.0. We can use the equation below to calculate the expected operating time for curve U4 at M = 2, TD = 0.5: 5.67   0.0352 • ----------------   – 0.963 seconds Equation 10.3 SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 399 (REFP). This is the operate time, which should be about one second, as calculated above. (50G4 will have remained asserted from earlier in the test, since no change was made to the IAW4 current.) SER C clears the SER records. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 400: Figure 10.6 Percentage Restraint Differential Characteristic

    87U Unrestrained Element Operating Region U87P Selected IRT Test Points 87R Restrained Element Operating Region SLP2 Test SLP1 Restraining Test Region O87P IRS1 O87P SLP1 Figure 10.6 Percentage Restraint Differential Characteristic SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 401: Table 10.4 Connection Compensation Factor

    TAR F command is issued. Table 10.4 Connection Compensation Factor WnCTC Setting A and B Constants 3 Odd: 1, 3, 5, 7, 9, 11 Even: 6, 12 Even: 2, 4, 8, 10 Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 402 Remember to view the appropriate TARget and apply current to the appropriate winding. The computer terminal will display the LED labels from left to right when the TAR F command is issued. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 403  Equation 10.5 b. Calculate the Winding 2 current for the test using the following formula: SLP1   IAW2 TAP2 • – ------------- - • •   Equation 10.6 Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 404 LED labels from left to right when the TAR F command is issued. IRS1 must be greater than: 087P ------------- - • SLP1 Equation 10.8 if SLP2 is not set to OFF. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 405 The A connection compensation constant is based on Table 10.4. Since the windings have the same WnCTC setting, the A constant will be the same for both windings. The A Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 406 Method: Execute the TARGET command (i.e., TAR F 87R <Enter>). The SEL-387 now displays the state of several differential elements in the second row of the front-panel LEDs. The 87R bit is the right-most LED. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 407: Figure 10.7 Test Connections For Parallel Current Sources

    This example tests must exceed for differential restraint. the fifth-harmonic blocking function. b. Enter SHO PCT5 <Enter>. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 408 ±5% and ±0.02 I IAW1 (fifth harmonic) = PCT5/100 • IAW1 (fundamental), ±5% ±0.02 I Harmonic Restraint (All But SEL-387-0 Relay) Step 1. Purpose: Verify the second-harmonic restraint percentage. Method: a. Execute the SHOW command via the relay front panel...
  • Page 409 PCT2 = second-harmonic setting in percent SLP1 = slope 1 setting For example SLP1 = 50 percent PCT2 = 20 percent   % harmonic 15 percent • – -------- -   Equation 10.15 Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 410 (on the hour) or once per day (at midnight). To limit the elapsed test time to one hour, only the outputs that are calculated once per minute are tested. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 411 HS1 = 14 HS2 = 17 FAA1 = 19 FAA2 = 22 Acceptable values are ±1 minute of the above times. The following is a typical SER report for this test. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 412: Commissioning Testing

    Use the PULSE command to verify relay output contact operation. Use the SEL-387-0, -5, -6 Relay Commissioning Test Worksheet, located at the end of this section, to verify correct CT connections and settings when placing the relay in service.

  • Page 413: Relay Troubleshooting

    Step 3. Measure and record the power supply voltage at the power input terminals. Step 4. Measure and record the voltage at all control inputs. Step 5. Measure and record the state of all output relays. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 414: Table 10.5 Troubleshooting

    Step 1 through Step 5 above have been tried, and the MET command was the last issued command, the Digital Signal Processor may have failed, and you should call the factory. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 415 4. SET P AUTO setting set to N (factory default). 5. Main board or interface board failure. Terminal Displays Meaningless Characters 1. Baud rate set incorrectly. 2. Check terminal configuration. See Section 7: Serial Port Communications and Commands. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 416 2. A/D converter drift. 3. Loose ribbon cable between transformers and main board. Self-Test Failure: ROM 1. Memory failure. Contact the factory. Self-Test Failure: RAM 1. Failure of static RAM IC. Contact the factory. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 417: Relay Calibration

    2. Call the factory. 3. Powering down the relay will reset the logic. Relay Calibration The SEL-387 is factory calibrated. If you suspect that the relay is out of calibration, please contact the factory. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 418: Factory Assistance

    We appreciate your interest in SEL products and services. If you have questions or comments, please contact us at: Schweitzer Engineering Laboratories, Inc. 2350 NE Hopkins Court Pullman, WA 99163-5603 U.S.A. Phone: +1.509.338.3838 Fax: +1.509.332.7990 Internet: selinc.com E-mail: info@selinc.com SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 419: Sel-387-0, -5, -6 Relay Commissioning Test Worksheet

    Date _______________ SET.1 of 4 System Information SEL-387-0, -5, -6 Relay Commissioning Test Worksheet System Information System Settings RID (Relay identification) = TID (Terminal identification) = MVA (Maximum transformer Rating) = Winding 1 Winding 2 Winding 3 Winding 4 Current transformer...
  • Page 420 Note the following commissioning checks will not detect the failure to properly filter zero-sequence current. Failure to adhere to this check will result in a differential operation for external faults involving ground. Proper zero-sequence filtering verified? SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 421 180° out of phase with the reference phase position for that winding. The reason is that CT polarity marks normally face away from the transformer on all windings.) Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 422 This page intentionally left blank...

  • Page 423: Appendix A: Firmware And Manual Versions

    Firmware Identification (FID) label: FID=SEL-387-x-Rxxx-Vx-Dxxxxxx For firmware versions with the date code of October 4, 1999 (SEL-387-5), or June 29, 2000 (SEL-387-0), or later, the FID label will appear as follows with the Part/Revision number in bold: FID=SEL-387-x-Rxxx-Vx-Z001001-Dxxxxxxxx...

  • Page 424: Table A.1 Firmware Revision History-Sel-387-0, -5, -6 Relay

    Firmware and Manual Versions Firmware Table A.1 Firmware Revision History—SEL-387-0, -5, -6 Relay (Sheet 1 of 5) Manual Firmware Identification (FID) Number Summary of Revisions Date Code ➤ SEL-387-0-R611-V0-Z004004-D20140124 Manual update only (see Table A.2). 20170601 SEL-387-5-R611-V0-Z004004-D20140124 SEL-387-6-R611-V0-Z004004-D20140124 ➤ SEL-387-0-R611-V0-Z004004-D20140124 Manual update only (see Table A.2).
  • Page 425 Firmware and Manual Versions Firmware Table A.1 Firmware Revision History—SEL-387-0, -5, -6 Relay (Sheet 2 of 5) Manual Firmware Identification (FID) Number Summary of Revisions Date Code ➤ SEL-387-0-R608-V0-Z004003-D20050919 Fixed ability to properly process SEL Fast Message data with cor- 20050919 rupted length field.
  • Page 426 Firmware and Manual Versions Firmware Table A.1 Firmware Revision History—SEL-387-0, -5, -6 Relay (Sheet 3 of 5) Manual Firmware Identification (FID) Number Summary of Revisions Date Code SEL-387-0 SEL-387-0-R602-V0-Z003003-D20020118 20011219 ➤ SEL-387-5-R602-V0-Z003003-D20020118 Added support for new DSP. ➤ Added support for faster CPU.
  • Page 427 Firmware and Manual Versions Firmware Table A.1 Firmware Revision History—SEL-387-0, -5, -6 Relay (Sheet 4 of 5) Manual Firmware Identification (FID) Number Summary of Revisions Date Code SEL-387-5 Supports PROTO=DNP 20001115 ➤ SEL-387-5-R406-V0-Z101101-D20001121 Corrected A5C0 message to include DNP on DNP versions (applies to R406 only).
  • Page 428 Firmware and Manual Versions Firmware Table A.1 Firmware Revision History—SEL-387-0, -5, -6 Relay (Sheet 5 of 5) Manual Firmware Identification (FID) Number Summary of Revisions Date Code ➤ SEL-387-5-R303-V0-Z001001-D19991004 Updated FID string to include four-digit year. 991008 ➤ Added capability of using mismatched CTRs in the combined cur- rent elements.

  • Page 429: Instruction Manual

    Table A.2 lists the instruction manual release dates and descriptions of modifications for the SEL-387-0, -5, -6. The most recent instruction manual revisions are listed at the top. For revision histories of the SEL-387-0 and SEL-387-5, -6 manuals (before they were combined into one manual), see Table A.3 and Table A.4.
  • Page 430 20090730 ➤ Updated Optoisolated Inputs specification. Section 3 ➤ Updated Figure 3.3: Differential Element (87-1) Quantities (SEL-387-0) and Figure 3.4: Differential Element (87-1) Quantities (all But SEL-387-0). ➤ Updated Harmonic Restraint (All But SEL-387-0). ➤ Updated Figure 3.9: DC Blocking (DCBL1) Logic (All But SEL-387-0).
  • Page 431 Firmware and Manual Versions Instruction Manual Table A.2 Manual Revision History—SEL-387-0, -5, -6 (Sheet 3 of 7) Revision Date Summary of Revisions Settings Sheets ➤ Added an explanatory note to Combined O/C Elements. Appendix A ➤ Updated Firmware Revision History and Manual Revision History.
  • Page 432 A.10 Firmware and Manual Versions Instruction Manual Table A.2 Manual Revision History—SEL-387-0, -5, -6 (Sheet 4 of 7) Revision Date Summary of Revisions Appendix D ➤ Modified A5C1 and A5D1 descriptions. ➤ Modified description of A546 temperature data block. Appendix G ➤...
  • Page 433 Replaced dimension drawing and front- and rear-panel drawings with updated versions. Section 3 ➤ Deleted figures. Section 4 ➤ Deleted the Relay Word bit table that applied to the SEL-387-0 Relay. Section 6 ➤ Deleted repetitious text. ➤ Corrected some defaults in Settings Sheets Example.
  • Page 434 Reordered settings in DNP Settings Sheets so they are in the same order as in the relay. 20010330 Reissued Entire Manual as SEL-387-0, -5, -6 Instruction Manual ➤ Merged SEL-387-0 Instruction Manual into the SEL-387-5, -6 Instruction Manual to create the SEL-387-0, -5, -6 Instruction Manual. Section 1 ➤...

  • Page 435: Table A.3 Manual Revision History-Sel-387-0 Relay

    Summary of Revisions Reissued Entire Manual as SEL-387-0, -5, -6 Instruction Manual 20010330 ➤ Merged SEL-387-0 Instruction Manual into the SEL-387-5, -6 Instruction Manual to create the SEL-387-0, -5, -6 Instruction Manual. Section 1 ➤ Added introductory paragraph about CTs.
  • Page 436 A.14 Firmware and Manual Versions Instruction Manual Table A.3 Manual Revision History—SEL-387-0 Relay (Sheet 2 of 3) Revision Date Summary of Revisions Section 5 20000630 ➤ Corrected Note: Make Active Setting Group Switching Settings With Care. ➤ Corrected Note: Make Latch Bit Settings With Care.

  • Page 437: Table A.4 Manual Revision History-Sel-387-5, -6 Relay

    Summary of Revisions Reissued Entire Manual as SEL-387-0, -5, -6 Instruction Manual 20010330 ➤ Merged SEL-387-0 Instruction Manual into the SEL-387-5, -6 Instruction Manual to create the SEL-387-0, -5, -6 Instruction Manual. Section 1 ➤ Added introductory paragraph about CTs.
  • Page 438 Added rear-panel drawing of model 0387x1, terminal blocks (Figure 2.3). ➤ Moved rear-panel drawing of model 0387xY Connectorized (Figure 2.4). ➤ Changed numbering of figures following Figure 2.2 because of the addition of two figures. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 439 Appendix D ➤ Added A5ED to Binary Message List. Appendix F ➤ Updated text throughout. Appendix A 990721 ➤ Updated to reflect new firmware (SEL-387-5, R301). ➤ 990518 Initial version (SEL-387-5, R300). Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
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  • Page 441: Overview

    ® ® Microsoft Windows operating system) ➤ Serial communications cable (SEL Cable C234A or equivalent) ➤ Disk containing the firmware upgrade (.s19 or .exe) file ➤ Firmware Upgrade Instructions (these instructions) Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 442: Upgrade Procedure

    1K Xmodem or Xmodem protocol. Step 1. Connect a serial communications cable to the computer serial port: a. Check the computer for a label identifying the serial communications ports. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 443: Figure B.1 Establishing A Connection

    (Figure B.3) that correspond to the relay settings you recorded in Step 9 on page B.2. If the computer settings do not match the relay settings, change the computer settings to match the relay settings. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 444: Figure B.3 Determining Communications Parameters For The Computer

    Press <Enter>. In the terminal emulation window, you should see the Access Level 0 prompt, similar to that in Figure B.5. If this is successful, proceed to C. Save Settings and Other Data on page B.6. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 445: Figure B.5 Terminal Emulation Startup Prompt

    Figure B.6 Correcting the Port Setting Step 11. Correct the communications parameters: a. From the filename Properties dialog box shown in Figure B.6, click Configure. You will see a dialog box similar to Figure B.7. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 446: Figure B.7 Correcting The Communications Parameters

    BOOT Step 1. From the Transfer menu in HyperTerminal, select Capture Text. Step 2. Enter a directory and filename for a text file where you will record the existing relay settings. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 447: Figure B.8 Preparing Hyperterminal For Id Command Display

    Figure B.8 Preparing HyperTerminal for ID Command Display. e. Click OK twice to go back to the terminal emulation window. f. Type ID <Enter> and record the FID number the relay displays. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 448: Figure B.9 List Of Commands Available In Sel

    FLASH Type : 040 Checksum = 370E Figure B.9 List of Commands Available in SEL BOOT Establish a High-Speed Connection Step 5. Type BAU 38400 <Enter> at the SEL prompt. boot !> SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 449: Figure B.10 Matching Computer To Relay Parameters

    Step 4. Select 1K Xmodem if this protocol is available on the PC. If the computer does not have 1K Xmodem, choose Xmodem. Step 5. Click Receive. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 450: Figure B.11 Example Receive File Dialog Box

    For a faster upload (and less from Windows Explorer double-click on the file and potential for file corruption), copy the new firmware to the local hard drive and upload the new firmware from the hard drive. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 451 . You will see no BOOT Download Existing Firmware on display on your PC to indicate a successful restart. page B.9. Contact the factory for assistance in achieving a successful firmware upgrade. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 452: Figure B.14 Selecting New Firmware To Send To The Relay

    No Access Level 0 = Prompt If no Access Level 0 prompt appears in the terminal emulation window, one of three things could have occurred. Refer to Table B.1 to determine the best solution: SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 453: Table B.1 Troubleshooting New Firmware Upload

    Step 3. Enter the STATUS command (STA <Enter>) to view relay status messages. If the relay displays no fail status message, proceed to H. Verify Settings, Calibration, Status, Breaker Wear, and Metering on page B.15. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 454 Step 1. Use the ACC and 2AC commands with the associated passwords to enter Access Level 2. The factory default passwords are in effect; use the default relay passwords listed in the PAS command description in the relay instruction manual. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 455 If the settings do not match the settings contained in the text file you recorded in C. Save Settings and Other Data on page B.6, contact your customer service representative or the factory for assistance. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 456: Figure B.16 Preparing Hyperterminal For Id Command Display

    If these values do not match, check the relay settings and wiring. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 457 SEL communications processor and the relay. Failure to perform this step can result in automatic data collection failure when cycling communications processor power. The relay is now ready for your commissioning procedure. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 458 This page intentionally left blank...

  • Page 459: Appendix Csel Distributed Port Switch Protocol (Lmd)

    ADDR: Two character ASCII address. The range is “01” to “99.” The default is “01.” SETTLE: Time in seconds that transmission is delayed after the request to send (RTS line) asserts. This delay accommodates transmitters with a slow rise time. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 460: Operation

    Step 6. Enter the sequence Ctrl + X QUIT <CR> before entering the prefix character if all relays in the multidrop network do not have the same prefix setting. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 461: Appendix D: Configuration, Fast Meter, And Fast Operate Commands

    A5D2 Demand Fast Meter Data Message A5C3 Peak Demand Fast Meter Configuration Block A5D3 Peak Demand Fast Meter Data Message A5CE Fast Operate Configuration Block A5E0 Fast Operate Remote Bit Control Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 462: Message Definitions

    5354410D0000 (STA<CR>) Check status 0004 Settings change bit A5C100000000 Reconfigure fast meter on settings change 0004 Settings change bit 53484F0D0000 (SHO<CR>) Check the settings 0004 53484F20470D (SHO G<CR>) Check the Global settings SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 463: Table D.4 A5C1 Fast Meter Configuration Block

    Table D.3 A5CO Relay Definition Block (Sheet 2 of 2) Data Description xxxx SEL protocol, (SEL-387-0 = 0100 Fast Meter, SEL-5, SEL-6 = 0300 Fast Meter and Fast Message xxxx LMD protocol, (SEL-387-0 = 0101 Fast Meter, SEL-5, SEL-6 = 0301 Fast Meter and Fast Message...
  • Page 464 494357340000 (ICW4) 00D6 564443000000 (VDC) 00DA Connection byte–Based on PHROT and W1CT settings (Calculation block #1) Current calculation only FFFF No skew adjustment FFFF No RS offset FFFF No XS offset SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 465 IAW3 IBW3 ICW3 Connection byte–Based on PHROT and W4CT settings (Calculation block #4) Current calculation only FFFF No skew adjustment FFFF No RS offset FFFF No XS offset IAW4 IBW4 ICW4 Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 466: Table D.5 A5D1 Fast Meter Data Block

    Command; Demand (A5C2) or Peak Demand (A5C3) Message length (218 bytes) No status byte Scale factors in fast meter configuration No scale factors used 20 analog input channels One sample per channel No digital banks SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 467: Table D.6 A5C2/A5C3 Demand/Peak Demand Fast Meter Configuration Messages

    No scale factor 0000 No scale factor offset 494257310000 (IBW1) 0000 494357310000 (ICW1) 0000 334932573100 (3I2W1) 0000 495257310000 (IRW1) 0000 494157320000 (IAW2) 0000 494257320000 (IBW2) 0000 494357320000 (ICW2) 0000 334932573200 (3I2W2) 0000 Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 468 Description 495257320000 (IRW2) 0000 494157330000 (IAW3) 0000 494257330000 (IBW3) 0000 494357330000 (ICW3) 0000 334932573300 (3I2W3) 0000 495257330000 (IRW3) 0000 494157340000 (IAW4) 0000 494257340000 (IBW4) 0000 494357340000 (ICW4) 0000 334932573400 (3I2W4) 0000 SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 469: Table D.7 A5D2/A5D3 Demand/Peak Demand Fast Meter Message

    Close breaker 2 Open breaker 3 Close breaker 3 Open breaker 4 Close breaker 4 Clear remote bit RB1 Set remote bit RB1 Pulse remote bit RB1 Clear remote bit RB2 Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 470 Set remote bit RB13 Pulse remote bit RB13 Clear remote bit RB14 Set remote bit RB14 Pulse remote bit RB14 Clear remote bit RB15 Set remote bit RB15 Pulse remote bit RB15 SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 471: Table D.9 A5E0 Fast Operate Remote Bit Control

    The number of Fast Operate reset codes supported Reserved for future use Per Fast Operate reset code, repeat: Fast Operate reset code (e.g., "00" for target reset) 54415220520000 Fast Operate reset description string (e.g., “TAR R”) Checksum Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 472: Table D.12 A5Ed Fast Operate Reset Command

    In response to the ID command, the relay sends the firmware ID, the relay ® TID setting, and the Modbus device code, as described below. <STX> (STX character, 02) "FID STRING ENCLOSED IN QUOTES","yyyy"<CR> "ID SETTING ENCLOSED IN QUOTES","yyyy"<CR> 32,"yyyy"<CR> <ETX> (ETX character, 03) SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 473 If there are more than eight settings in SER, the SNS message will have several rows. Each row will have eight strings, followed by the checksum and cartridge return. The last row may have less than eight strings. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 474 SNS message for the SEL-387-5 is: <STX>"xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","yyyy"<CR> "xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","yyyy"<CR> "xxxx","xxxx","xxxx",<CR><ETX> where: = a string from the settings in SER (SER1, SER2, SER3, xxxx and SER4). = the 4-byte ASCII representation of the checksum. yyyy SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 475: Appendix E: Compressed Ascii Commands

    Transformer 3 daily thermal report CTHERMAL H 1 Transformer 1 hourly thermal report CTHERMAL H 2 Transformer 2 hourly thermal report CTHERMAL H 3 Transformer 3 hourly thermal report CTHERMAL T RTD input report Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 476: Cascii Command-General Format

    String of maximum m characters (e.g., 10S for a 10-character string) = the 4-byte ASCII representation of the hex checksum for yyyy the line. A Compressed ASCII command may require multiple header and data configuration lines. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 477: Sel-387-0, -5 Relay

    <STX>"No Data Available","0668"<CR><ETX> SEL-387-0, -5 Relay CASCII Command Display the SEL-387 Compressed ASCII configuration message by sending: CAS <Enter> The SEL-387-5 sends (the SEL-387-0 sends a similar response): <STX> "CAS",7,"yyyy"<CR> "CST",1,"yyyy"<CR> "1H","FID","yyyy"<CR> "1D","40S","yyyy"<CR> "7H","MONTH_","DAY_","YEAR_","HOUR_","MIN_","SEC_","MSEC_","yyyy"<CR>...
  • Page 478 Display the SEL-387 Compressed ASCII breaker report by sending: CBR <Enter> The relay sends: <STX> "FID","yyyy"<CR> "FID=SEL-387-XXXX-V0-ZXXXXXX-DXXXXXXXX","yyyy"<CR> "MONTH_","DAY_","YEAR_","HOUR_","MIN_","SEC_","MSEC_","yyyy"<CR> xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,"yyyy"<CR> "BREAKER","INT_TRIPS","IAW","IBW","ICW","EXT_TRIPS","IAW","IBW","ICW", "POLE1","POLE2","POLE3","MONTH","DAY","YEAR","HOUR","MIN","SEC","MSEC", "yyyy"<CR> xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx, xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx"yyyy"<CR> xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx, xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx"yyyy"<CR> xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx, xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx"yyyy"<CR> xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx, xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx"yyyy"<CR> <ETX> SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 479 Word bits from the element store <STX> visible to the user, excluding the first "FID","yyyy"<CR> two front-panel rows. "FID=SEL-387-XXXX-V0-ZXXXXXX-DXXXXXXXX","yyyy"<CR> "MONTH_","DAY_","YEAR_","HOUR_","MIN_","SEC_","MSEC_","yyyy"<CR> xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,"yyyy"<CR> "FREQ","SAM/CYC_A","SAM/CYC_D","NUM_OF_CYC","EVENT","yyyy"<CR> xxxx,xxxx,xxxx,xxxx,"xxxx","yyyy"<CR> "IAW1","IBW1","ICW1","IAW2","IBW2","ICW2","IAW3","IBW3","ICW3","IAW4", "IBW4","ICW4","VDC","TRIG","DIGITAL_ELEMENT_NAMES","yyyy"<CR> xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,"z","RLY_BITS"<CR> ... (previous line repeated for SAM/CYC_A*NUM_OF_CYC) "SETTINGS","yyyy"<CR> "SETTINGS text","yyyy"<CR> <ETX> Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 480 CHISTORY Command Display the SEL-387 Compressed ASCII history report by sending: CHI <Enter> or display the last n items in the SEL-387 Compressed ASCII history report by sending: CHI n <Enter> SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 481 Display the SEL-387 Compressed ASCII target display by sending: CTA N <Enter> where N is one of the target numbers or element names accepted by the TAR command. If N is omitted, 0 is used. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 482: Sel-387-6 Relay

    "CHI",1,"yyyy"<CR> "1H","FID","yyyy"<CR> "1D","40S","yyyy"<CR> "7H","MONTH_","DAY_","YEAR_","HOUR_","MIN_","SEC_","MSEC_","yyyy"<CR> "1D","I","I","I","I","I","I","I","yyyy"<CR> "11H","REC_NUM","MONTH","DAY","YEAR","HOUR","MIN","SEC","MSEC","EVENT", "GROUP","TARGETS","yyyy"<CR> "80D","I","I","I","I","I","I","I","I","7S","I","52S","yyyy"<CR> "CEV",1,"yyyy"<CR> "1H","FID","yyyy"<CR> "1D","40S","yyyy"<CR> "7H","MONTH_","DAY_","YEAR_","HOUR_","MIN_","SEC_","MSEC_","yyyy"<CR> "1D","I","I","I","I","I","I","I","yyyy"<CR> "5H","FREQ","SAM/CYC_A","SAM/CYC_D","NUM_OF_CYC","EVENT","yyyy"<CR> "1D","F","I","I","F","7S","yyyy"<CR> "15H","IAW1","IBW1","ICW1","IAW2","IBW2","ICW2","IAW3","IBW3","ICW3","IAW4", "IBW4","ICW4","VDC","TRIG","NAMES OF ELEMENTS IN ALL RELAY WORD ROWS", "yyyy"<CR> "60D","F","F","F","F","F","F","F","F","F","F","F","F","F","1S","96S","yyyy"<CR> (Continued on next page) SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 483 TopOil","Msrd TopOil","Hot Spot","Load","FAA","yyyy"<CR> 24D","I","I","I","I","I","1S","F","F","F","F","F","F","yyyy"<CR> "CTH H 2",1,"yyyy"<CR> "7H","MONTH_","DAY_","YEAR_","HOUR_","MIN_","SEC_","MSEC_","yyyy"<CR> "1D","I","I","I","I","I","I","I","yyyy"<CR> "12H","MONTH_","DAY_","YEAR_","HOUR_","MIN_","CommError","Ambient","Calc TopOil","Msrd TopOil","Hot Spot","Load","FAA","yyyy"<CR> 24D","I,","I","I","I","I","1S","F","F","F","F","F","F","yyyy"<CR> "CTH H 3",1,"yyyy"<CR> "7H","MONTH_","DAY_","YEAR_","HOUR_","MIN_","SEC_","MSEC_","yyyy"<CR> "1D","I","I","I","I","I","I","I","yyyy"<CR> "12H","MONTH_","DAY_","YEAR_","HOUR_","MIN_","CommError","Ambient","Calc TopOil","Msrd TopOil","Hot Spot","Load","FAA","yyyy"<CR> 24D","I,","I","I","I","I","1S","F","F","F","F","F","F""yyyy"<CR> "CTH T",1,"yyyy"<CR> "7H","MONTH_","DAY_","YEAR_","HOUR_","MIN_","SEC_","MSEC_","yyyy"<CR> "1D","I","I","I","I","I","I","I","yyyy"<CR> "2H","Input #","Temp","yyyy"<CR> "4D","I","I","yyyy"<CR> <ETX> Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 484 The CEV report contains every analog and digital element found in an EVE report, and displays the information in Compressed ASCII format by sending: CEV [DIF R] [n Sx Ly[–[w]] C] <Enter> SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 485 “>”. = relay element data, in hex ASCII, corresponding to the RLY_BITS DIGITAL_ELEMENT_NAMES = text refers to the current settings of the relay as described SETTINGS in the event report section. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 486 = the data values corresponding to the first line labels. xxxx = the 4-byte ASCII representation of the hex checksum for yyyy the line. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 487 ([phase] option) Display all archived daily profile data for specified phase ([phase] option) Display Temperature input data Report Options: (only for H and D report types) Phase: Phase A, B or C. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 488 To obtain the report for Phase C, send the following: CTH D 3 <Enter> <STX> "MONTH_","DAY_","YEAR_","HOUR_","MIN_","SEC_","MSEC_","yyyy"<CR> xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,"yyyy"<CR> "MONTH_","DAY_","YEAR_","Ambient","Calc TopOil","Msrd TopOil","Hot Spot","Load", "Max FAA","RLOL","TLOL",,"yyyy"<CR> xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,"yyyy"<CR> …(previous line repeated until all archive data is listed) <ETX> SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 489 = the 4-byte ASCII representation of the checksum for the yyyy line. CTH Temperature <STX> "MONTH_","DAY_","YEAR_","HOUR_","MIN_","SEC_","MSEC_","yyyy"<CR> xxxx,xxxx,xxxx,xxxx,xxxx,xxx,xxxx,"yyyy"<CR> Input Data Report "Input#","Temp","yyyy"<CR> xxxx,xxxx,"yyyy"<CR> …(previous line repeated for each input available) <ETX> Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 490 If no data are available the relay replies: "No Data Available","0668"<CR> where: = data values corresponding to the first line labels. xxxx = the 4-byte ASCII representation of the checksum for the yyyy line SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 491: Appendix F Unsolicited Ser Protocol

    Overview This appendix describes special binary Sequential Events Recorder (SER) NOTE: The SEL-387-0 Relay does messages that are not included in Section 9: Event Reports and SER of the not include this feature. instruction manual. Devices with embedded processing capability can use these messages to enable and accept unsolicited binary SER messages from the SEL-387.

  • Page 492: Functions And Function Codes

    “nn” records, and the first and last records of each message are separated by no more than 16 seconds. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 493 SER records allowed per message as indicated in the “Enable Unsolicited Data Transfer” message.) 0000000000 Five bytes reserved for future use as a routing address Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 494 Four bytes reserved for future use as a return routing address dddd Two-byte day of year (1–366) of overflow message generation yyyy Two-byte, four-digit year (e.g., 1999 or 07CF hex) of overflow message generation. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 495 EXAMPLE F.3 Disable Unsolicited Data Transfer message, acknowledge requested: A5 46 10 00 00 00 00 00 01 02 C0 XX 18 00 cc cc (XX = 0, 1, 2, 3) Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 496 16 seconds. The relay always requests acknowledgment in unsolicited SER messages (LSB of the status byte is set). Unsolicited SER messages can be enabled on multiple ports simultaneously. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 497: Appendix G: Distributed Network Protocol

    STIMEO Select/operate time-out (0.0–30.0 sec.) DTIMEO Data link time-out (0–5 sec.) MINDLY Minimum time from DCD to TX (0.00–1.00 sec.) 0.05 MAXDLY Maximum time from DCD to TX (0.00–1.00 sec.) 0.10 Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 498 DCD indication. The timing is the same as above, but PREDLY functions as if it were set to 0, and RTS is not actually deasserted after the PSTDLY time delay expires. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 499: Data-Link Operation

    The master never polls and Set CLASS to a non-zero value, relies on unsolicited reports only. Set UNSOL = Y, Set NUMEVE and AGEEVE according to how often messages are desired to be sent. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 500: Dnp3 Documentation

    Reports binary input change events Only non-time-tagged when no specific variation requested Reports time-tagged binary input change Never events when no specific variation requested Sends unsolicited responses Configurable with unsolicited message enable settings SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 501: Table G.4 Sel-387 Relay Dnp Object Table

    0,1,7,8 16-Bit Binary Counter Without Flag 0,1,6,7,8 0,1,7,8 32-Bit Delta Counter Without Flag 16-Bit Delta Counter Without Flag Frozen Counter-All Variations 32-Bit Frozen Counter 16-Bit Frozen Counter 32-Bit Frozen Delta Counter Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 502 32-Bit Frozen Counter Event With Time 16-Bit Frozen Counter Event With Time 32-Bit Frozen Delta Counter Event With Time 16-Bit Frozen Delta Counter Event With Time Analog Input-All Variations 0,1,6,7,8 32-Bit Analog Input 0,1,6,7,8 0,1,7,8 SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 503 Time and Date CTO Unsynchronized Time and Date CTO 07, quantity = 1 Time Delay-All Variations Time Delay Coarse Time Delay Fine 07, quantity = 1 All Classes of Data 1,20,21 Class 0 Data Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 504: Table G.5 Sel-387 Relay-Wye/Delta Dnp Data Map

    Relay diagnostic failure. 01,02 1618 Relay diagnostic warning. 01,02 1619 New relay event available. 01,02 1620 Settings change or relay restart. 10,12 00–15 Remote bits RB1–RB16. 10,12 Pulse Open breaker 1 command OC. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 505 IB magnitude and angle for Wdg. 2. 30,32 16,17 IC magnitude and angle for Wdg. 2. 30,32 18,19 3I1 magnitude and angle for Wdg. 2. 30,32 20,21 3I2 magnitude and angle for Wdg. 2. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 506 Peak demand 312 mag. for Wdg.1. 94–96 Peak demand 312 time in DNP format for Wdg.1. 30,32 Peak demand IR mag. for Wdg.1. 98–100 Peak demand IR time in DNP format for Wdg.1. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 507 Breaker contact wear percentage (A, B, C) for Wdg. 2. 30,32 167–169 Breaker contact wear percentage (A, B, C) for Wdg. 3. 30,32 170–172 Breaker contact wear percentage (A, B, C) for Wdg. 4. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 508: Table G.6 Sel-387-5 And Sel-387-6 Relays Continuation Of Wye/Delta Dnp Data Map

    8. This is the index of the right-most element of the Relay Word row of the element in question. Count over to the original element and add that to get the point index. Binary Inputs 800–1599 are derived from SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 509 RTD Failure Mode Error Code Open (Temp < –50°C) 7FFFh Short (Temp > 250°C) 8000h Fiber-Optic Communications Failure 7FFCh External RTD Unit Status Failure 7FF8h RTD Channel Not Used 7FF0h Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 510: Table G.7 Sel-387-5, -6 Relay Binary Input Lookup Table

    50P22 51P2 51P2T 51P2R PDEM2 39–32 50A23 50B23 50C23 50P23 50A24 50B24 50C24 50P24 47–40 50N21 50N21T 50N22 51N2 51N2T 51N2R NDEM2 55–48 50Q21 50Q21T 50Q22 51Q2 51Q2T 51Q2R QDEM2 63–56 SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 511 OUT101 335–328 OUT201 OUT202 OUT203 OUT204 OUT205 OUT206 OUT207 OUT208 343–336 OUT209 OUT210 OUT211 OUT212 OUT213 OUT214 OUT215 OUT216 351–344 359–352 367–360 375–368 LB10 LB11 LB12 LB13 LB14 LB15 LB16 383–376 Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 512: Point Remapping

    The maps are stored in nonvolatile memory and are protected with a checksum. The DNP command is only available if DNP has been selected on one of the ports. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 513 Enter the new DNP Binary Input map <Enter> Save Settings (Y/N)? Y <Enter> ==>DNP AO <Enter> Enter the new DNP Analog Output map OFF <Enter> Save Settings (Y/N)? Y <Enter> ==> Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 514 If connection is not achieved within MDTIME seconds of initiating the phone call, the relay shall issue the command “+++ATH<CR>” and wait at least SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 515 DNP port, but you will need the appropriate access levels for setting changes and breaker operations. A virtual terminal session times out in the same way as an ASCII session. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
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  • Page 517: Sel-387-5, -6 Relay Dnp Port-Set P Settings Sheets

    PSTDLY Analog reporting dead band (0–32767 counts) ANADBA Event Data Confirmation time-out (0.1–50.0 sec) ETIMEO Number of data-link retries (0 for no confirm, 1–15) DRETRY Allow Unsolicited reporting (Y, N) UNSOL Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 518 Enable unsolicited messages on power-up (Y, N) PUNSOL Address of master to report to (0–65534) REPADR Number of events to transmit on (1–200) NUMEVE = Age of oldest event to force transmit on, seconds (0.0–60.0) AGEEVE SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 519: Appendix H: Protection Application Examples

    Table H.1. For a system with an ACB phase rotation, the direction of correction is clockwise (CW). See Special Cases for a compensation settings example on a system with an ACB phase rotation. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 520: Table H.1 Wnctc Setting: Corresponding Phase And Direction Of Correction

    Figure H.1 shows the key information from a typical nameplate for a two- winding transformer. The winding connection diagram and the phasor (vector) diagram are needed to determine the winding compensation settings in the relay. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 521: Figure H.1 Transformer Nameplate

    (e.g., IA system to IAW1). Unless otherwise noted, an ABC phase rotation is assumed for the following discussion. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 522: Figure H.2 Three-Line Diagram Showing System Phase-To-Transformer Bushing, Ct, And Ct-To-Relay Connections

    IAW2_compensated 180 degrees out-of-phase with IAW1 for proper application of the differential function. Primary 30° Figure H.3 Primary Current Phasors Secondary IAW1 210° 30° IAW2 IAW2_Compensated Figure H.4 Current at the Relay Terminals SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 523 (delta-winding) of the transformer are Ia/N, Ib/N, and Ic/N where N is the phase rotation. turns ratio of the transformer. Because the discussion focuses on the phase shift and not the magnitude, you can assume N = 1 for this discussion. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 524: Table H.2 (A, B, C) To (H1, H2, H3) Phase-To-Bushing Connections

    Figure H.7. This is the same transformer discussed in Figure H.5, but with different phase-to-bushing connections: A-phase to H3, B-phase to H2, C-phase to H1, a-phase to X3, b-phase to X2, and c-phase to X1. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 525: Table H.3 (A, C, B) To (H1, H2, H3) Phase-To-Bushing Connections

    Figure H.7 are on the same transformer, but with a different order of the phases connected to the transformer bushings. As a result, the X-side primary current shifts 30 degrees in opposite directions in the two systems. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 526: Figure H.9 Combination Of Standard And Non-Standard Phase-To-Bushing Connection Diagram

    Figure H.11 shows the transformer of Figure H.2 with a standard current transformer configuration; that is, both the H-side and X-side CTs are connected in wye and the polarity marks are away from the power transformer. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 527: Figure H.12 Primary System Currents And Currents As Seen By The Relay

    Only A-phase is discussed for simplicity, but the concept is the same. Primary Secondary IAW1 30° 150° IAW2 Figure H.12 Primary System Currents and Currents as Seen by the Relay Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 528: Figure H.13 Current Flow With Reversed X-Side Ct Polarity

    Figure H.13, but the neutral sides of the CTs are away from the transformer. With these connections, the H-side and X-side currents are both entering the relay at the relay polarity mark. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 529: Figure H.14 Current Flow With Reversed X-Side Ct Polarity And Reversed Connections

    Selecting a compensation setting of 6 effectively shifts the current by 180 degrees (6 • 30° = 180°). Further explanation for selecting the final settings for non-standard CT connections is provided in Example H.3. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 530 The system primary current Ia (X-side) lags the system primary current IA (H-side) by 30 degrees. The CT connections are standard, which results in IAW2 leading IAW1 by 150 degrees. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 531: Figure H.16 Delta-Wye Transformer With Standard Phase-To-Bushing Connections

    Ia (X-side) leads the system current IA (H-side) by 30 degrees, or lags by 330 degrees. The CT connections are standard, which results in IAW2 lagging IAW1 by Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 532: Figure H.18 Delta-Wye Transformer With Non-Standard Phase-To-Bushing Connections

    The resulting compensation settings are W1CTC = 0 and W2CTC = 11. Although the same transformer is used in Example H.1 and Example H.2, notice that the non-standard phase-to-bushing connections affect the compensation settings in both examples. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 533: Figure H.20 Wye-Delta Transformer With Non-Standard Ct Connections On The X-Side

    Connections: Reversed CT Polarity and Reversed Connections, two methods are proposed to correct the phase shift for reverse polarity CTs. The first method is to rewire the current inputs on the relay so Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 534: Figure H.22 Comparison Of Standard And Non-Standard Ct Connections On The X-Side Of The Transformer

    IAW2 180 degrees out-of-phase with IAW1, you must also shift IAW2 by 11 multiples of 30 degrees in the counterclockwise direction. The resulting compensation settings are W1CTC = 11 and W2CTC = 11. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 535: Figure H.23 Autotransformer With Standard Phase-To-Bushing Connections

    EXAMPLE H.5 Delta-Wye Transformer With Standard Phase-to-Bushing Connections, Standard CT Connections, and an ACB System Phase Rotation Consider the application in Figure H.25 with standard phase-to-bushing connections, standard CT connections, and an ACB system phase rotation. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 536: Figure H.25 Delta-Wye Transformer With Standard Phase-To-Bushing Connections With An Acb Phase Rotation

    Table H.1 (also shown in Figure H.27) indicate that the matrix causes the compensated currents to rotate in the opposite direction depending on the system phase rotation. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

  • Page 537: Figure H.27 Direction Of Compensation Based On System Phase Rotation

    Therefore, set W1CTC = 12. Matrix CTC(12) has no phase shift, but CTC(12) removes zero-sequence current from the differential calculation. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...

  • Page 538: Table H.4 Quick Settings Guide For Common Transformer Configurations And Standard Connections

    Figure H.29 Common Transformer Connections Table H.4 Quick Settings Guide for Common Transformer Configurations and Standard Connections (Sheet 1 of 2) W1CTC W2CTC XFMR Connection (Winding 1) (Winding 2) DABY/Dy1 DACY/Dy11 SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 539 Beyond the Nameplate – Selecting Transformer Compensation Settings for Secure Differential Protection by Barker Edwards, David G. Williams, Ariana Hargrave, Matthew Watkins, and Vinod K. Yedidi. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
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  • Page 541: Sel-387 Relay Command Summary

    Display demand metering data, in primary amperes. Enter number k to scroll metering k times on screen. MET DIF k Display differential metering data, in multiples of TAP. Enter number k to scroll metering k times on screen. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 542 Displays cumulative and individual through-fault event data. All the most recent individual events are displayed, up to 1200. TFE C Clears/resets cumulative and individual through-fault event data. TFE P Preloads cumulative through-fault event data. TFE R Clears/resets cumulative and individual through-fault event data. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 543 Show differential element 2 event report number n, with 1/4-cycle resolution. Attach S8 for 1/8-cycle resolution. EVE DIF3 n Show differential element 3 event report number n, with 1/4-cycle resolution. Attach S8 for 1/8-cycle resolution. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 544 Show Relay Word row n status (n = 0 through 41). Enter number k to scroll Relay Word row n status k times on screen. Append F to display targets on the front panel second row of LEDs. TAR R Return front-panel LED targets to regular operation and reset the tripping front-panel targets. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 545 CLO n Assert the CCn Relay Word bit. Used to close breaker n if CCn is assigned to an output contact. JMP6B has to be in place to enable this command. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 546 Assert the OCn Relay Word bit. Used to open breaker n if OCn is assigned to an output contact. JMP6B has to be in place to enable this command. Show existing Access Level 1, B, and 2 passwords. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 547 Displays cumulative and individual through-fault event data. All the most recent individual events are displayed, up to 1200. TFE C Clears/resets cumulative and individual through-fault event data. TFE P Preloads cumulative through-fault event data. TFE R Clears/resets cumulative and individual through-fault event data. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 548 SEL-2020 Communications Processor. Show or set time (24 hour time). Show time presently in the relay by entering just TIM. Example time 22:47:36 is entered with command TIM 22:47:36. Trigger an event report. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 549 Display demand metering data, in primary amperes. Enter number k to scroll metering k times on screen. MET DIF k Display differential metering data, in multiples of TAP. Enter number k to scroll metering k times on screen. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 550 Displays cumulative and individual through-fault event data. All the most recent individual events are displayed, up to 1200. TFE C Clears/resets cumulative and individual through-fault event data. TFE P Preloads cumulative through-fault event data. TFE R Clears/resets cumulative and individual through-fault event data. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 551 Show differential element 2 event report number n, with 1/4-cycle resolution. Attach S8 for 1/8-cycle resolution. EVE DIF3 n Show differential element 3 event report number n, with 1/4-cycle resolution. Attach S8 for 1/8-cycle resolution. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 552 Show Relay Word row n status (n = 0 through 41). Enter number k to scroll Relay Word row n status k times on screen. Append F to display targets on the front panel second row of LEDs. TAR R Return front-panel LED targets to regular operation and reset the tripping front-panel targets. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 553 CLO n Assert the CCn Relay Word bit. Used to close breaker n if CCn is assigned to an output contact. JMP6B has to be in place to enable this command. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 554 Assert the OCn Relay Word bit. Used to open breaker n if OCn is assigned to an output contact. JMP6B has to be in place to enable this command. Show existing Access Level 1, B, and 2 passwords. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...
  • Page 555 Displays cumulative and individual through-fault event data. All the most recent individual events are displayed, up to 1200. TFE C Clears/resets cumulative and individual through-fault event data. TFE P Preloads cumulative through-fault event data. TFE R Clears/resets cumulative and individual through-fault event data. Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay...
  • Page 556 SEL-2020 Communications Processor. Show or set time (24 hour time). Show time presently in the relay by entering just TIM. Example time 22:47:36 is entered with command TIM 22:47:36. Trigger an event report. SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601...

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