Sel SEL-351S-5 - User Manual

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SEL SEL-351S-5

Protection and Breaker Control Relay

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Table of Contents4
List of Tables8
List of Figures12
Preface18
Typographic Conventions21
Cross References21
Safety Information22
Introduction and Specifications24
SEL-351S Models25
Table 1.1 SEL-351S Models25
Table 1.2 SEL-351S Firmware Versions26
Auxiliary {TRIP} and {CLOSE} Pushbuttons26
CT Saturation Protection26
Potential Transformer Connections27
Applications28
Figure 1.1 SEL-351S Relays Applied Throughout the Power System28
Hardware Connection Features29
Figure 1.2 Inputs, Outputs, and Communications Ports (Extra I/O Boards in Figure 1.3 and Figure 1.4)29
Figure 1.3 Extra I/O Board (Model 0351Sxy, Plug-In Connector Version; Main Board Shown in Figure 1.2)30
Figure 1.4 Extra I/O Board31
Communications Connections32
Figure 1.5 Communications Connections Examples32
Specifications33
Substation Battery Voltage Monitor36
Metering Accuracy36
Power Element Accuracy37
Section 2: Installation38
Relay Mounting38
Rack Mount38
Panel Mount38
Figure 2.1 SEL-351S Dimensions for Rack-Mount and Panel-Mount Models39
Front-Panel and Rear-Panel Connection Diagrams40
Figure 2.2 SEL-351S Front- and Rear-Panel Drawings (Model 0351Sxyh3Xxxx6X); Horizontal Rack Mount Example, (Connectorized, with Additional I/O Board)41
Figure 2.3 SEL-351S Front- and Rear-Panel Drawings (Model 0351Sx133Xxxx2X); Horizontal Panel Mount Example, (Conventional Terminal Blocks, with Additional I/O Board)42
Figure 2.4 SEL-351S Front- and Rear-Panel Drawings (Model 0351Sx143Xxxxxx); Vertical Panel Mount Example, (Conventional Terminal Blocks, no Additional I/O Board)43
Figure 2.5 SEL-351S with Auxiliary {TRIP}/{CLOSE} Pushbuttons (Model 0351Sx145Xxxx6X); Vertical Panel-Mount Example, (Conventional Terminal Blocks, with Additional I/O Board)44
Figure 2.6 SEL-351S with Auxiliary {TRIP}/{CLOSE} Pushbuttons (Model 0351Sxyh5Xxxx2X); Horizontal Rack-Mount Example, (Connectorized, with Additional I/O Board)45
User-Configurable Label Option for the Front Panel46
Figure 2.7 SEL-351S (Horizontal) with User-Configurable Default Labels46
Figure 2.8 SEL-351S (Horizontal) Blank Slide-In Label Set and Label Removal Tool47
Figure 2.9 SEL-351S (Vertical) with User-Configurable Default Labels48
Table 2.1 Options and Explanations for the User-Configurable Front-Panel Labels50
Figure 2.11 Breaker LED Front-Panel Default Labels and Rear-Panel Labels50
Making Rear-Panel Connections51
Required Equipment/General Connection Information51
Models 0351Sxy (Plug-In Connectors)51
Figure 2.12 SEL-351S Plug-In Connector Coding (Top View; Model 0351Sxy)52
Chassis Ground53
Power Supply53
Standard Output Contacts54
High-Current Interrupting Output Contacts54
Current Transformer Inputs55
Model 0351Sxy55
Potential Transformer Inputs55
Voltage Input Rating56
Wye-Connected Voltages (Global Setting PTCONN = WYE)56
Delta-Connected Voltages (Global Setting PTCONN = DELTA)56
Synchronism Check VS Connection (Global Setting VSCONN = VS)57
Broken-Delta VS Connection (Global Setting VSCONN = 3V0)57
Polarity Check for VSCONN = 3V057
Wye-Connected PT Example58
Figure 2.13 Broken-Delta Secondary Connection to Voltage Input VS, Wye-Connected Pts58
Figure 2.14 Resultant Voltage V59
Figure 2.15 Broken-Delta Secondary Connection to Voltage Input VS, Open-Delta Connected Pts59
Figure 2.16 Resultant Voltage V60
Serial Ports60
Table 2.2 Communication Cables to Connect the SEL-351S to Other Devices61
IRIG-B Time-Code61
SEL-351S AC/DC Connection Diagrams for Various Applications62
Figure 2.17 SEL-351S Provides Overcurrent Protection and Reclosing for a Utility Distribution Feeder (Includes Fast Bus Trip Scheme) (Wye-Connected Pts)62
Figure 2.18 SEL-351S Provides Overcurrent Protection for a Distribution Bus (Includes Fast Bus Trip Scheme) (Wye-Connected Pts)63
Figure 2.19 SEL-351S Provides Directional Overcurrent Protection and Reclosing for a Transmission Line (Wye-Connected Pts)64
Figure 2.20 SEL-351S Provides Directional Overcurrent Protection and Reclosing for a Transmission Line (Current-Polarization Source Connected to Channel IN) (Wye-Connected Pts)65
Figure 2.21 SEL-351S Provides Overcurrent Protection for a Delta-Wye Transformer Bank (Wye-Connected Pts)66
Figure 2.22 SEL-351S Provides Overcurrent Protection for a Transformer Bank with a Tertiary Winding (Wye-Connected Pts)67
Figure 2.23 SEL-351S Provides Overcurrent Protection for an Industrial Distribution Feeder (Core-Balance Current Transformer Connected to Channel IN)68
Figure 2.24 SEL-351S Provides Dedicated Breaker Failure Protection69
Figure 2.25 SEL-351S Provides Overcurrent Protection for a High-Impedance or Low-Impedance Grounded System (Wye-Connected Pts)70
Figure 2.26 SEL-351S Provides Overcurrent Protection for a Petersen Coil Grounded System (Wye-Connected Pts)71
Figure 2.27 SEL-351S Provides Overcurrent Protection for an Ungrounded System (Wye-Connected Pts)72
Figure 2.28 SEL-351S Provides Overcurrent Protection for an Ungrounded System (Open-Delta Connected Pts, Broken-Delta 3V0 Connection)73
Figure 2.29 SEL-351S Provides Overcurrent Protection and Reclosing for a Utility Distribution Feeder (Open-Delta Connected Pts and Line-To-Ground Synch-Check Connection)74
Figure 2.30 SEL-351S Provides Underfrequency Load Shedding, Overcurrent Protection, and Reclosing for a Utility Distribution Feeder (Single Voltage Connection)75
Figure 2.31 SEL-351S Example Wiring Diagram Using the Auxiliary {TRIP}/{CLOSE} Pushbuttons for 0351Sxxx5/6/A/B Models76
Circuit Board Connections77
Figure 2.32 Jumper, Connector, and Major Component Locations on the SEL-351S Main Board78
Figure 2.33 Jumper, Connector, and Major Component Locations on the SEL-351Sxy Extra I/O Board (Plug-In Connector Version)79
Figure 2.34 Jumper, Connector, and Major Component Locations on the SEL-351Sx1 Extra I/O Board (Screw Terminal Block Version)80
Figure 2.35 Jumper Locations for the 0351Sxxx5/6/A/B Model Magnetics/Auxiliary Pushbutton81
Output Contact Jumpers81
Table 2.3 Output Contact Jumpers and Corresponding Output Contacts82
Table 2.4 "Extra Alarm" Output Contacts and Corresponding Controlling Jumpers82
Table 2.5 Required Position of Jumper JMP23 for Desired Output Contact OUT107 Operation (Models 0351Sx1, and 0351Sxy)82
Table 2.6 Password and Breaker Jumper Positions for Standard Relay Shipments83
Table 2.7 Password and Breaker Jumper Operation83
Table 2.8 EIA-232 Serial Port Voltage Jumper Positions for Standard Relay Shipments83
Auxiliary {TRIP}/ {CLOSE} Pushbutton and Breaker Status LED Jumpers (0351Sxxx5/6/A/B Models Only)84
Table 2.9 Jumper Positions for Breaker OPEN/CLOSE Indication84
Table 2.10 Jumper Positions for Arc Suppression84
Clock Battery84
Phase Instantaneous/Definite-Time Overcurrent Elements86
Section 3: Overcurrent, Voltage, Synchronism Check, Frequency, and Power Elements Instantaneous/Definite-Time Overcurrent Elements87
Figure 3.1 Levels 1-4 Phase Instantaneous Overcurrent Elements87
Figure 3.2 Levels 5-6 Phase Instantaneous Overcurrent Elements87
Pickup Operation88
Figure 3.3 Levels 1-4 Phase Instantaneous/Definite-Time Overcurrent Elements89
Figure 3.4 Combined Single-Phase Instantaneous Overcurrent Elements91
Pickup and Reset Time Curves91
Figure 3.5 SEL-351S Nondirectional Instantaneous Overcurrent Element Pickup Time Curve92
Figure 3.6 SEL-351S Nondirectional Instantaneous Overcurrent Element Reset Time Curve92
Setting Range92
Neutral Ground Instantaneous/Definite-Time Overcurrent Elements93
Figure 3.7 Levels 1-4 Phase-To-Phase Instantaneous Overcurrent Elements94
Figure 3.8 Levels 1-4 Neutral Ground Instantaneous/Definite-Time Overcurrent Elements95
Figure 3.9 Levels 5-6 Neutral Ground Instantaneous Overcurrent Elements96
Residual Ground Instantaneous/Definite-Time Overcurrent Elements96
Figure 3.10 Levels 1-4 Residual Ground Instantaneous/Definite-Time Overcurrent Elements98
Figure 3.11 Levels 5-6 Residual Ground Instantaneous Overcurrent Elements99
Negative-Sequence99
Figure 3.12 Levels 1-4 Negative-Sequence Instantaneous/Definite-Time Overcurrent Elements100
Figure 3.13 Levels 5-6 Negative-Sequence Instantaneous Overcurrent Elements101
Time-Overcurrent Elements102
Table 3.1 Available Phase Time-Overcurrent Elements102
Table 3.2 Phase Time-Overcurrent Elements Settings102
Figure 3.14 Phase Time-Overcurrent Element 51P1T (with Directional Control Option)103
Figure 3.15 Phase Time-Overcurrent Element 51P2T (with Directional Control Option)103
Table 3.3 Phase Time-Overcurrent Element (Maximum Phase) Logic Outputs104
Torque Control Switch Open104
Directional Control Option105
Torque Control105
Reset Timing Details (51P1T Element Example)106
Figure 3.16 Neutral Ground Time-Overcurrent Element 51N1T (with Directional Control Option)107
Table 3.4 Neutral Ground Time-Overcurrent Elements Settings108
Figure 3.17 Neutral Ground Time-Overcurrent Element 51N2T (with Directional Control Option)108
Residual Ground Time-Overcurrent Elements109
Figure 3.18 Residual Ground Time-Overcurrent Element 51G1T (with Directional Control Option)109
Table 3.5 Residual Ground Time-Overcurrent Elements Settings110
Figure 3.19 Residual Ground Time-Overcurrent Element 51G2T (with Directional Control Option)110
Table 3.6 Negative-Sequence Time-Overcurrent Elements Settings111
Figure 3.20 Negative-Sequence Time-Overcurrent Element 51QT (with Directional Control Option)111
Voltage Elements113
Table 3.7 Voltage Values Used by Voltage Elements113
Voltage Element Settings113
Table 3.8 Voltage Elements Settings and Settings Ranges (Wye-Connected Pts)114
Table 3.9 Voltage Elements Settings and Settings Ranges (VS Channel)114
Table 3.10 Voltage Elements Settings and Settings Ranges (Delta-Connected Pts)115
Figure 3.21 Single-Phase and Three-Phase Voltage Elements (Wye-Connected Pts)116
Figure 3.22 Phase-To-Phase and Sequence Voltage Elements (Wye-Connected Pts)117
Figure 3.23 Phase-To-Phase Voltage Elements (Delta-Connected Pts)118
Figure 3.24 Sequence Voltage Elements (Delta-Connected Pts)118
Figure 3.25 Channel VS Voltage Elements (Wye- or Delta-Connected Pts)119
Undervoltage Element Operation Example119
Overvoltage Element Operation Example119
Voltage Elements Used in POTT Logic120
Synchronism Check Elements121
Table 3.11 Synchronism Check Elements Settings and Settings Ranges121
Setting SYNCP122
Wye-Connected Voltages122
Delta-Connected Voltages122
Figure 3.26 Synchronism Check Voltage Window and Slip Frequency Elements123
Figure 3.27 Synchronism Check Elements123
System Frequencies Determined from Voltages125
System Rotation Can Affect Setting SYNCP126
Other Uses for Voltage Window Elements126
Block Synchronism Check Conditions126
Slip Frequency Calculator127
Generator Application for SSLOW and SFAST127
Angle Difference Calculator128
Angle Difference Example129
Figure 3.28 Angle Difference between V130
Synchronism Check Element Outputs131
Synchronism Check Applications for Automatic Reclosing and Manual Closing132
Frequency Elements134
Frequency Element Settings134
Figure 3.31 Levels 1-6 Frequency Elements135
Table 3.12 Frequency Elements Settings and Settings Ranges136
Create Over- and Underfrequency Elements136
Overfrequency Element136
Overfrequency Element Operation137
Underfrequency Element Operation137
Frequency Element Voltage Control137
Other Uses for Undervoltage Element 27B81138
Frequency Element Uses138
Underfrequency Loadshedding138
Voltage Sag, Swell, and Interruption Elements (Available in Firmware Version 7)139
Figure 3.32 Voltage Sag Elements139
Figure 3.33 Voltage Swell Elements140
Figure 3.34 Voltage Interruption Elements140
Voltage Sag, Swell, and Interruption Elements Settings140
Table 3.13 Sag/Swell/Interruption Elements Settings (Must First Set ESSI = Y)141
Vbase Thermal Element Block141
Figure 3.35 Vbase Tracking Example (Three-Phase Disturbance, Wye Connected)142
Vbase Initialization142
Vbase Tracking Range143
SSI Reset Command143
Power Elements (Available in Firmware Version 7)144
Power Elements Settings144
Table 3.14 Single-Phase Power Element Settings and Setting Ranges (EPWR = 1, 2, 3, or 4)144
Table 3.15 Three-Phase Power Element Settings and Setting Ranges (EPWR = 3P1, 3P2, 3P3, or 3P4)144
Power Element Time Delay Setting Considerations145
Using Power Elements in the Relay Trip Equation145
Single-Phase Power Element Calculations147
Three-Phase Power Element Calculations147
Power Elements Logic Operation147
Figure 3.36 Single-Phase Power Elements Logic (+VARS Example Shown)147
Figure 3.37 Three-Phase Power Elements Logic148
Figure 3.38 Power Elements Operation in the Real/Reactive Power Plane148
Figure 3.39 SEL-351S(B) Provides VAR Control for 9600 Kvar Capacitor Bank149
Figure 3.40 Per Unit Setting Limits for Switching 9600 Kvar Capacitor Bank On- and Off-Line151
Settings for Single-Phase Power Elements151
Settings for Three-Phase Power Elements152
Section 4: Loss-Of-Potential, Load Encroachment, and Directional Element Logic154
Loss-Of-Potential Logic154
Table 4.1 LOP Logic Inputs154
Figure 4.1 Loss-Of-Potential Logic154
Setting VNOM = off155
Setting ELOP155
Setting ELOP = y156
Setting ELOP = N156
Load-Encroachment Logic157
Figure 4.2 Load-Encroachment Logic157
Table 4.2 Load-Encroachment Settings Ranges158
Load-Encroachment Setting Example158
Convert Maximum Loads to Equivalent Secondary Impedances158
Convert Power Factors to Equivalent Load Angles159
Figure 4.3 Migration of Apparent Positive-Sequence Impedance for a Fault Condition160
Directional Control for Neutral Ground and Residual Ground Overcurrent Elements162
Figure 4.4 General Logic Flow of Directional Control for Neutral Ground and Residual Ground Overcurrent Elements (Excluding Ungrounded/High-Impedance Grounded Systems)163
Table 4.3 Available Ground Directional Elements164
Table 4.4 Best Choice Ground Directional™ Logic164
Figure 4.5 General Logic Flow of Directional Control for Neutral Ground and Residual Ground Overcurrent Elements (Ungrounded/High-Impedance Grounded Systems; ORDER = U)164
Table 4.5 Ground Directional Element Availability by Voltage Connection Settings166
Internal Enables167
Zero-Sequence Voltage Sources168
Directional Elements169
Directional Element Routing170
Loss-Of-Potential170
Figure 4.6 Internal Enables (32QE and 32QGE) Logic for Negative-Sequence Voltage-Polarized Directional Elements172
Figure 4.7 Internal Enables (32VE and 32IE) Logic for Zero-Sequence Voltage-Polarized and Channel in Current-Polarized Directional Elements173
Figure 4.8 Internal Enable (32NE) Logic for Zero-Sequence Voltage-Polarized Directional Elements (Low-Impedance Grounded, Petersen Coil Grounded, and Ungrounded/High-Impedance Grounded Systems)174
Figure 4.9 Negative-Sequence Voltage-Polarized Directional Element for Neutral Ground and Residual Ground Overcurrent Elements175
Figure 4.10 Zero-Sequence Voltage-Polarized Directional Element176
Figure 4.11 Channel in Current-Polarized Directional Element177
Figure 4.12 Zero-Sequence Voltage-Polarized Directional Element (Low-Impedance Grounded Systems)178
Figure 4.13 Wattmetric and Incremental Conductance Directional Elements (Petersen Coil Grounded Systems)179
Figure 4.14 Zero-Sequence Voltage-Polarized Directional Element (Ungrounded/High-Impedance Grounded Systems)180
Figure 4.15 Routing of Directional Elements to Residual Ground Overcurrent Elements181
Figure 4.16 Routing of Direction Elements to Neutral Ground Overcurrent Elements181
Figure 4.17 Direction Forward/Reverse Logic for Residual Ground Overcurrent Elements182
Figure 4.18 Direction Forward/Reverse Logic for Neutral Ground Overcurrent Elements183
Directional Control for Negative-Sequence and Phase Overcurrent Elements184
Figure 4.19 General Logic Flow of Directional Control for Negative-Sequence and Phase Overcurrent Elements184
Direction Forward/Reverse Logic186
Figure 4.20 Negative-Sequence Voltage-Polarized Directional Element for Negative-Sequence and Phase Overcurrent Elements187
Figure 4.21 Positive-Sequence Voltage-Polarized Directional Element for Phase Overcurrent Elements188
Figure 4.22 Routing of Directional Elements to Negative-Sequence and Phase Overcurrent Elements189
Figure 4.23 Direction Forward/Reverse Logic for Negative-Sequence Overcurrent Elements190
Figure 4.24 Direction Forward/Reverse Logic for Phase Overcurrent Elements191
Directional Control Settings192
Table 4.6 Directional Control Settings Not Made for Particular Conditions193
Table 4.7 Overcurrent Elements Controlled by Level Direction Settings DIR1-DIR4193
ORDER-Ground Directional Element Priority Setting194
Petersen Coil Considerations for Setting ORDER195
Table 4.8 Z Constant for Z2R Setting196
K2 Set Automatically198
Z0F and Z0R Set Automatically201
Table 4.9 Z Constant for Z0R Setting201
Deriving Z0F and Z0R Settings201
Figure 4.25 Zero-Sequence Impedance Network and Relay Polarity202
Figure 4.26 Zero-Sequence Impedance Plot for Solidly-Grounded, Mostly Inductive System202
Figure 4.27 Zero-Sequence Impedance Network for Ground Fault on Feeder 1205
Figure 4.28 Wattmetric Element Operation for Ground Fault on Feeder 1206
32WD-Wattmetric Delay (Petersen Coil Grounded System)207
Settings Considerations for Petersen Coil Grounded Systems207
Table 4.10 Affect of Global Settings VSCONN and PTCONN on Petersen Coil Directional209
E32IV-SEL OGIC Control Equation Enable209
Ungrounded/High-Impedance Grounded System Considerations for Setting E32IV210
Directional Control Provided by Torque Control Settings211
Trip and Target Logic212
Figure 5.1 Trip Logic213
Figure 5.2 Minimum Trip Duration Timer Operation (See Bottom of Figure 5.1)214
Unlatch Trip214
Section 5: Trip and Target Logic Trip Logic215
Other Applications for the Target Reset Function215
Factory Settings Example (Using Setting TR)215
Unlatch Trip with 52A Circuit Breaker Auxiliary Contact216
Unlatch Trip with 52B Circuit Breaker Auxiliary Contact216
Switch-Onto-Fault (SOTF) Trip Logic219
Figure 5.3 Three-Pole Open Logic (Top) and Switch-Onto-Fault Logic (Bottom)219
Circuit Breaker Operated Switch-Onto-Fault Logic220
Switch-Onto-Fault Logic Output (SOTFE)221
Switch-Onto-Fault Trip Logic Trip Setting (TRSOTF)221
Communications-Assisted Trip Logic-General Overview222
Figure 5.4 Communications-Assisted Tripping Scheme222
Trip Setting TRCOMM223
Trip Setting DTT224
Permissive Overreaching Transfer Trip (POTT) Logic226
External Inputs226
PT1-Received Permissive Trip Signal(S)226
Figure 5.5 Permissive Input Logic Routing to POTT Logic227
Timer Settings227
Logic Outputs227
EKEY-Echo Key Permissive Trip228
Figure 5.6 POTT Logic229
Figure 5.7 Permissive Input Logic Routing to Trip Logic230
Variations for Permissive Underreaching Transfer Trip (PUTT) Scheme230
Installation Variations230
Figure 5.8 SEL-351S Connections to Communications Equipment for a Two-Terminal Line POTT Scheme231
Figure 5.9 SEL-351S Connections to Communications Equipment for a Three-Terminal Line POTT Scheme231
Directional Comparison Unblocking (DCUB) Logic232
Figure 5.10 DCUB Logic235
Figure 5.11 Unblocking Block Logic Routing to Trip Logic236
PTRX1, PTRX2-Permissive Trip Receive Outputs236
Figure 5.12 SEL-351S Connections to Communications Equipment for a Two-Terminal Line DCUB Scheme (Setting ECOMM = DCUB1)236
Figure 5.13 SEL-351S Connections to Communications Equipment for a Three-Terminal Line DCUB Scheme (Setting ECOMM = DCUB2)237
Directional Comparison Blocking (DCB) Logic238
DSTRT-Directional Carrier Start239
NSTRT-Nondirectional Carrier Start239
BTX-Block Trip Extension240
Figure 5.14 DCB Logic240
Figure 5.15 SEL-351S Connections to Communications Equipment for a Two-Terminal Line DCB Scheme241
Figure 5.16 SEL-351S Connections to Communications Equipment for a Three-Terminal Line DCB Scheme242
Front-Panel Target Leds243
Table 5.1 SEL-351S Front-Panel Target LED Definitions and Settings243
Figure 5.17 Programmable Front-Panel Target LED Logic244
Front-Panel Target LED Logic Details244
Target Reset/Lamp Test Front-Panel Pushbutton247
Figure 5.18 Seal-In of Breaker Failure Occurrence for Message Display247
Close and Reclose Logic250
Section 6: Close and Reclose Logic Close Logic251
Figure 6.1 Close Logic251
Set Close251
Unlatch Close252
Factory Settings Example252
Figure 6.2 Close Conditions-Other than Auto-Reclosing253
Figure 6.3 Unlatch Close Conditions254
Circuit Breaker Status254
Figure 6.4 Breaker Status Determination255
Program an Output Contact for Closing255
Reclose Supervision Logic256
Figure 6.5 Reclose Supervision Logic (Following Open-Interval Time-Out)256
Figure 6.6 Reclose Supervision Limit Timer Operation (Refer to Bottom of Figure 6.5)257
Settings and General Operation257
For most Applications257
For a Few, Unique Applications258
Additional Settings260
Figure 6.7 SEL-351S Relays Installed at both Ends of a Transmission Line in a High-Speed Reclose Scheme260
Additional Settings Example261
Reclosing Relay263
Table 6.1 Relay Word Bit and Front-Panel Correspondence to Reclosing Relay States264
Figure 6.8 Reclosing Relay States and General Operation264
Reclosing Relay States and Settings/Setting Group Changes265
Lockout State265
Defeat the Reclosing Relay266
Close Logic Can Still Operate When the Reclosing Relay Is Defeated266
Table 6.2 Reclosing Relay Timer Settings and Setting Ranges266
Open-Interval Timers267
Figure 6.9 Example Reclosing Sequence from Reset to Lockout267
Determination of Number of Reclosures (Last Shot)267
Observe Shot Counter Operation268
Reset Timer268
Monitoring Open-Interval and Reset Timing269
Reclosing Relay Shot Counter269
Table 6.3 Shot Counter Correspondence to Relay Word Bits and Open-Interval Times269
Reclose Initiate and Reclose Initiate Supervision Settings270
Other Settings Considerations271
Drive-To-Lockout and Drive-To-Last Shot Settings (79DTL and 79DLS, Respectively)272
Figure 6.10 Factory-Default Drive-To-Lockout Logic273
Table 6.5 Example Open-Interval Time Settings274
Figure 6.11 Reclose Blocking for Islanded Generator275
Additional Settings Example275
Sequence Coordination Setting (79SEQ)277
Figure 6.13 Operation of SEL-351S Shot Counter for Sequence Coordination with Line Recloser278
Reclose Supervision Setting (79CLS)280
Inputs, Outputs, Timers, and Other Control Logic282
Optoisolated Inputs283
Figure 7.1 Example Operation of Optoisolated Inputs IN101-IN106283
Figure 7.2 Example Operation of Optoisolated Inputs IN201-IN208-Extra I/O Board284
Input Debounce Timers284
Input Functions285
Settings Examples285
Figure 7.3 Circuit Breaker Auxiliary Contact and Reclose Enable Switch Connected to Optoisolated Inputs IN101 and IN102285
Local Control Switches287
Figure 7.4 Local Control Switches Drive Local Bits LB1-LB16287
Table 7.1 Correspondence between Local Control Switch Positions and Label Settings287
On/Off Switch287
Table 7.2 Correspondence between Local Control Switch Types and Required Label Settings288
Figure 7.5 Local Control Switch Configured as an ON/OFF Switch288
Figure 7.6 Local Control Switch Configured as an OFF/MOMENTARY Switch288
Figure 7.7 Local Control Switch Configured as an ON/OFF/MOMENTARY Switch288
Figure 7.8 Configured Manual Trip Switch Drives Local Bit LB3289
Figure 7.9 Configured Manual Close Switch Drives Local Bit LB4289
Remote Control Switches291
Figure 7.10 Remote Control Switches Drive Remote Bits RB1-RB16291
Latch Control Switches293
Figure 7.11 Traditional Latching Relay293
Figure 7.12 Latch Control Switches Drive Latch Bits LT1-LT16293
Latch Control Switch Application Ideas294
Reclosing Relay Enable/Disable Setting Example294
Figure 7.13 SCADA Contact Pulses Input IN104 to Enable/Disable Reclosing Relay294
Figure 7.14 Latch Control Switch Controlled by a Single Input to Enable/Disable Reclosing294
Feedback Control295
Rising Edge Operators295
Figure 7.15 Latch Control Switch Operation Time Line296
Use a Remote Bit Instead to Enable/Disable the Reclosing Relay296
Latch Control Switch States Retained296
Figure 7.16 Time Line for Reset of Latch Bit LT2 after Active Setting Group Change297
Note: Make Latch Control Switch Settings with Care297
Figure 7.17 Latch Control Switch (with Time Delay Feedback) Controlled by a Single Input to Enable/Disable Reclosing298
Figure 7.18 Latch Control Switch (with Time Delay Feedback) Operation Time Line299
Multiple Setting Groups300
Table 7.3 Definitions for Active Setting Group Indication Relay Word Bits SG1-SG6300
Selecting the Active Setting Group300
Push Button301
Relay Disabled Momentarily During Active Setting Group Change301
Table 7.5 SEL OGIC Control Equation Settings for Switching Active Setting Group between Setting Groups 1 and302
Figure 7.19 SCADA Contact Pulses Input IN105 to Switch Active Setting Group between Setting Groups 1 and302
Table 7.6 Active Setting Group Switching Input Logic304
Figure 7.21 Active Setting Group Switching (with Single Input) Time Line304
Figure 7.22 Rotating Selector Switch Connected to Inputs IN101, IN102, and IN103 for Active Setting Group Switching305
Selector Switch Now Rests on Position REMOTE306
Figure 7.23 Active Setting Group Switching (with Rotating Selector Switch) Time Line307
Active Setting Group Retained307
Settings Change307
Note: Make Active Setting Group Switching Settings with Care308
SEL OGIC Control Equation Variables/Timers309
Settings Example310
Output Contacts313
Operation of Output Contacts for Different Output Contact Types313
ALARM Output Contact314
Figure 7.27 Logic Flow for Example Output Contact Operation315
Figure 7.28 Logic Flow for Example Output Contact Operation-Extra I/O Board316
Rotating Default Display317
Figure 7.29 Traditional Panel Light Installations317
Reclosing Relay Status Indication317
Circuit Breaker Status Indication317
Figure 7.30 Rotating Default Display Replaces Traditional Panel Light Installations318
General Operation of Rotating Default Display Settings318
Reclosing Relay Enabled318
Additional Settings Examples320
Continually Display a Message320
Active Setting Group Switching Considerations321
Setting Group 1 Is the Active Setting Group321
Displaying Values (Other than Userentered Text) on the Rotating Default Display322
Values Displayed for Incorrect Settings323
Table 7.8 Mnemonic Settings for Metering on the Rotating Default Display324
Extra Details for Displaying Breaker Wear Monitor Quantities on the Rotating Default Display327
Section 8: Breaker Monitor, Metering, and Load Profile Functions327
Table 7.9 Mnemonic Settings for Breaker Wear Monitor Values on the Rotating Default Display328
Extra Details for Displaying Time-Overcurrent Elements on the Rotating Default Display328
Displaying Time-Overcurrent Elements Example329
Table 7.10 Mnemonic Settings for Time-Overcurrent (TOC) Element Pickups on the Rotating Default330
Additional Format for Displaying Time-Overcurrent Elements on the Rotating Default Display330
Table 7.11 Mnemonic Settings for Time-Overcurrent (TOC) Element Pickups Using the Same-Line-Label Format on the Rotating Default Display330
Control Strings332
Breaker Monitor, Metering, and Load Profile Functions334
Introduction334
Breaker Monitor335
Table 8.1 Breaker Maintenance Information for a 25 Kv Circuit Breaker335
Breaker Monitor Setting Example336
Figure 8.1 Plotted Breaker Maintenance Points for a 25 Kv Circuit Breaker336
Table 8.2 Breaker Monitor Settings and Settings Ranges336
Breaker Maintenance Curve Details337
Figure 8.2 SEL-351S Breaker Maintenance Curve for a 25 Kv Circuit Breaker338
Figure 8.3 Operation of SEL OGIC Control Equation Breaker Monitor Initiation Setting339
Breaker Monitor Operation Example339
Percent to 25 Percent Breaker Wear340
Percent to 50 Percent Breaker Wear340
Percent to 100 Percent Breaker Wear340
Figure 8.4 Breaker Monitor Accumulates 10 Percent Wear341
Figure 8.5 Breaker Monitor Accumulates 25 Percent Wear342
Figure 8.6 Breaker Monitor Accumulates 50 Percent Wear343
Figure 8.7 Breaker Monitor Accumulates 100 Percent Wear344
Breaker Monitor Output344
Via Serial Port345
Determination of Relay Initiated Trips and Externally Initiated Trips345
Factory Default Setting Example346
Additional Example346
Figure 8.8 Input IN106 Connected to Trip Bus for Breaker Monitor Initiation346
Station DC Battery Monitor348
Figure 8.9 DC Under- and Overvoltage Elements348
Create Desired Logic for DC Under- and Overvoltage Alarming348
View Station DC Battery Voltage350
Station DC Battery Voltage Dips During Circuit Breaker Tripping351
Station DC Battery Voltage Dips During Circuit Breaker Closing351
Station DC Battery Voltage Dips Anytime351
Powering the Relay352
Demand Metering353
Comparison of Thermal and Rolling Demand Meters353
Figure 8.11 Response of Thermal and Rolling Demand Meters to a Step Input (Setting DMTC = 15 Minutes)354
Thermal Demand Meter Response (EDEM = THM)355
Figure 8.12 Voltage355
Rolling Demand Meter Response (EDEM = ROL)355
Time = 0 Minutes356
Time = 5 Minutes356
Time = 10 Minutes356
Time = 15 Minutes357
Table 8.3 Demand Meter Settings and Settings Range357
Demand Current Logic Output Application-Raise Pickup for Unbalance Current358
Figure 8.14 Raise Pickup of Residual Ground Time-Overcurrent Element for Unbalance Current359
Residual Ground Demand Current below Pickup GDEMP359
Residual Ground Demand Current Goes above Pickup GDEMP359
Demand Metering Updating and Storage361
Energy Metering362
Energy Metering Updating and Storage362
Maximum/Minimum Metering363
Table 8.4 Operation of Maximum/Minimum Metering with Directional Power Quantities363
Maximum/Minimum Metering Update and Storage364
Small Signal Cutoff for Metering365
Table 8.5 Metering Thresholds (Secondary Units)365
Synchrophasor Metering366
View Synchrophasor Metering Information Via Serial Port366
Load Profile Report (Available in Firmware Versions 6 and 7)367
Determining the Size of the Load Profile Buffer370
Clearing the Load Profile Buffer370
Setting the Relay372
Table 9.1 Serial Port SET Commands372
In some Applications, Make Global Settings (SET G) First372
Section 9: Setting the Relay Introduction373
Settings Changes Via the Front Panel374
Settings Changes Via the Serial Port375
Table 9.2 Set Command Editing Keystrokes375
Time-Overcurrent Curves376
Table 9.3 Equations Associated with U.S. Curves376
Table 9.4 Equations Associated with IEC Curves376
Recloser Curves377
Table 9.5 Recloser Curve Designations377
Figure 9.1 U.S. Moderately Inverse Curve: U1378
Figure 9.2 U.S. Inverse Curve: U2379
Figure 9.3 U.S. very Inverse Curve: U3380
Figure 9.4 U.S. Extremely Inverse Curve: U4381
Figure 9.5 U.S. Short-Time Inverse Curve: U5382
Figure 9.6 I.E.C. Class a Curve (Standard Inverse): C1383
Figure 9.7 I.E.C. Class B Curve (very Inverse): C2384
Figure 9.8 I.E.C. Class C Curve (Extremely Inverse): C3385
Figure 9.9 I.E.C. Long-Time Inverse Curve: C4386
Figure 9.10 I.E.C. Short-Time Inverse Curve: C5387
Figure 9.11 Recloser Control Response Curves A, C, N, and W388
Figure 9.12 Recloser Control Response Curves B, R, 2, and 3389
Figure 9.13 Recloser Control Response Curves D, 8PLUS, and 16390
Figure 9.14 Recloser Control Response Curves F, H, J, and 1391
Figure 9.15 Recloser Control Response Curves G, V, 6, and 13392
Figure 9.16 Recloser Control Response Curves E, P, and 18393
Figure 9.17 Recloser Control Response Curves KG, Y, Z, and 5394
Figure 9.18 Recloser Control Response Curves KP, M, T, and 17395
Figure 9.19 Recloser Control Response Curves 4, 9, 11, and 14396
Figure 9.20 Recloser Control Response Curves L, 7, 8, and 15397
Relay Word Bits (Used in SEL OGIC Control Equations)398
Table 9.6 SEL-351S Relay Word Bits398
Table 9.7 Relay Word Bit Definitions for SEL-351S400
Settings Explanations419
Identifier Labels419
Current Transformer Ratios419
Settings for Voltage Input Configuration421
Table 9.8 Main Relay Functions that Change with VSCONN, When PTCONN = WYE422
Table 9.9 Main Relay Functions that Change with VSCONN, When PTCONN = DELTA423
Figure 9.21 Operation of DELTA and 3V0 Relay Word Bits423
Table 9.10 Main Relay Functions that Change with VNOM = off424
Potential Transformer Ratios and PT Nominal Secondary Voltage Settings424
Line Settings425
Figure 9.22 Hybrid Power System with Neutral Ground Resistor425
Other System Parameters426
Settings Sheets428
SEL-351S Settings Sheets430
Relay Settings430
Instantaneous/Definite-Time Overcurrent Enable Settings431
Time-Overcurrent Enable Settings431
Other Enable Settings431
Phase-To-Phase Instantaneous Overcurrent Elements433
Phase Time-Overcurrent Element435
Frequency Element441
Other Settings443
Power Elements444
Communications-Assisted Trip Scheme Input Equations447
Torque Control Equations for Inst./Def.-Time Overcurrent Elements449
Torque Control Equations for Time-Overcurrent Elements449
Output Contact Equations450
Other Equations452
Global Settings (Serial Port Command SET G and Front Panel)454
Local Bit Labels460
Section 10: Serial Port Communications and Commands467
Port Connector and Communications Cables467
Relay Word Bit TIRIG467
Relay Word Bit TSOK467
Figure 10.1 DB-9 Connector Pinout for EIA-232 Serial Ports467
Table 10.1 Pinout Functions for EIA-232 Serial Ports 2, 3, and467
Table 10.2 Terminal Functions for EIA-485 Serial Port 1467
SEL-351S to Computer468
SEL-351S to Modem468
SEL-351S to SEL-PRTU469
SEL-351S to SEL-DTA2469
Table 10.3 Serial Communications Port Pin/Terminal Function Definitions469
Communications Protocol471
SEL Distributed Port Switch Protocol (LMD)472
SEL Fast Meter Protocol472
SEL Compressed ASCII Protocol473
SEL Fast Sequential Events Recorder (SER) Protocol473
SEL Fast Message Synchrophasor Protocol473
Serial Port Automatic Messages474
Table 10.4 Serial Port Automatic Messages474
Serial Port Access Levels475
Access Level B476
Table 10.5 Serial Port Command Summary477
Command Explanations479
Password Requirements479
Access Level Attempt (Password Required)479
Access Level Attempt (Password Not Required)480
BRE Command (Breaker Monitor Data)480
COMM Command (Communication Data-Available in Firmware Versions 6 and 7)481
DAT Command (View/Change Date)482
EVE Command (Event Reports)482
GRO Command (Display Active Setting Group Number)482
HIS Command (Event Summaries/History)483
MET K-Instantaneous Metering485
MET X K-Extended Instantaneous Metering486
MET D-Demand Metering488
MET E-Energy Metering489
MET M-Maximum/Minimum Metering490
QUI Command (Quit Access Level)491
SER Command (Sequential Events Recorder Report)492
SHO Command (Show/View Settings)492
STA Command Row and Column Definitions498
TAR Command (Display Relay Element Status)499
Table 10.6 SEL-351S Word and Its Correspondence to TAR Command500
TIM Command (View/Change Time)501
TRI Command (Trigger Event Report)501
BRE N Command (Preload/Reset Breaker Wear)502
CLO Command (Close Breaker)503
GRO N Command (Change Active Setting Group)503
OPE Command (Open Breaker)504
PUL Command (Pulse Output Contact)504
CON Command (Control Remote Bit)505
Table 10.7 SEL-351S Control Subcommand506
PAS Command (Change Passwords)507
Table 10.8 Factory Default Passwords for Access Levels 1, B, and 2507
Table 10.9 Valid Password Characters508
SET Command (Change Settings)508
VER Command (Show Relay Configuration and Firmware Version)508
Command Summary510
SEL-351S Relay Command Summary510
Section 11: Front-Panel Interface514
Introduction514
Front-Panel Pushbutton Operation515
Figure 11.1 SEL-351S Front-Panel Pushbuttons-Overview515
Primary Functions515
Figure 11.2 SEL-351S Front-Panel Pushbuttons-Primary Functions516
Front-Panel Password Security516
Figure 11.3 SEL-351S Front-Panel Pushbuttons-Primary Functions (Continued)517
Secondary Functions517
Figure 11.4 SEL-351S Front-Panel Pushbuttons-Secondary Functions518
Functions Unique to the Front-Panel Interface519
Reclosing Relay Shot Counter Screen519
Figure 11.5 Local Control Switch Configured as an ON/OFF Switch521
Figure 11.6 Local Control Switch Configured as an OFF/MOMENTARY Switch521
Figure 11.7 Local Control Switch Configured as an ON/OFF/MOMENTARY Switch521
Rotating Default Display525
Front-Panel Neutral/Ground Current Display528
Additional Rotating Default Display Example528
Operator Controls529
Table 11.1 SEL-351S Front-Panel Operator Control Functions529
Figure 11.8 Operator Controls-{GROUND ENABLED}-{LOCK532
Figure 11.9 Operator Controls-{HOT LINE TAG} through {TRIP} (Model 0351Sxxx3)532
Detailed Operator Control Pushbutton Output532
Figure 11.10 {GROUND ENABLED} Operator Control Pushbutton Output533
LOCK} Operator Control Pushbutton Output533
TRIP} and {CLOSE} Operator Control Pushbutton Outputs534
Figure 11.12 {CLOSE} Operator Control Pushbutton Output535
Figure 11.13 {TRIP} Operator Control Pushbutton Output535
GROUND ENABLED} Operator Control536
Figure 11.14 {GROUND ENABLED} Operator Control LED and Logic537
RECLOSE ENABLED} and {HOT LINE TAG} Operator Controls537
Figure 11.15 {RECLOSE ENABLED} and {HOT LINE TAG ENABLED} Operator Control Logic538
Figure 11.16 {REMOTE ENABLED} Operator Control Logic538
Example Application for the {REMOTE ENABLED} Operator Control539
Figure 11.17 Example {REMOTE ENABLED} Operator Control Application (Supervising Remote Control of Ground Overcurrent Elements)539
Figure 11.18 {AUX 1} Operator Control Logic539
Figure 11.19 {AUX 2} Operator Control Logic540
ALTERNATE SETTINGS} Operator Control540
Figure 11.20 {ALTERNATE SETTINGS} Operator Control LED and Logic541
LOCK} Operator Control541
Figure 11.21 {LOCK} Operator Control LED and Logic542
Introduction544
Standard 15/30-Cycle Event Reports545
Standard Event Report Triggering545
Table 12.1 Event Types547
Figure 12.1 Example Event Summary547
Fault Location548
Retrieving Full-Length Standard Event Reports548
Synchrophasor-Level Accuracy in Event Reports550
Figure 12.2 Example Synchrophasor-Level Precise Event Report 1/16-Cycle Resolution550
Table 12.2 Standard Event Report Current, Voltage, and Frequency Columns552
Variable Scaling for Analog Values552
Output, Input, and Protection, and Control Columns553
Table 12.3 Output, Input, and Protection, and Control Element Event Report Columns553
Sequential Events Recorder (SER) Report568
SER Triggering568
Retrieving SER Reports569
Clearing SER Report570
Example Standard 15-Cycle Event Report571
Figure 12.3 Example Standard 15-Cycle Event Report 1/4-Cycle Resolution573
Figure 12.4 Example Partial Event Report with Delta-Connected Pts574
Figure 12.5 Derivation of Event Report Current Values and RMS Current Values from Sampled575
Figure 12.6 Derivation of Phasor RMS Current Values from Event Report Current Values576
Example SER Report577
Figure 12.7 Example SER Report577
Sag/Swell/Interruption (SSI) Report (Available in Firmware Version 7)579
SSI Report Entries579
Table 12.4 SSI Element Status Columns580
Table 12.5 Status SSI Column580
Retrieving the SSI Report582
Sample SSI Report585
Figure 12.8 Example Sag/Swell/Interruption (SSI) Report (PTCONN = WYE)586
Figure 12.9 Example Sag/Swell/Interruption (SSI) Report (PTCONN = DELTA)586
Section 13: Testing and Troubleshooting588
Introduction588
Testing Philosophy589
Acceptance Testing589
Commissioning Testing589
Maintenance Testing590
Testing Methods and Tools592
Figure 13.1 Low-Level Test Interface (J1 or J10) Connector593
Table 13.1 Resultant Scale Factors for Input Module593
Using the Low-Level Test Interface When Global Setting PTCONN = DELTA593
Testing Via Sequential Events Recorder595
Relay Self-Tests596
Table 13.2 Relay Self-Tests596
Relay Troubleshooting598
Inspection Procedure598
Troubleshooting Procedure598
Relay Meter Command Does Not Respond as Expected599
Relay Calibration600
Factory Assistance601
Firmware and Manual Versions602
Determining the Firmware Version in Your Relay602
Table A.1 Firmware Revision History602
Appendix A: Firmware and Manual Versions Firmware603
Instruction Manual607
Table A.2 Instruction Manual Revision History607
Overview618
Relay Firmware Upgrade Instructions618
Introduction for Relay Firmware Upgrades618
Optional Equipment619
Upgrade Procedure619
Prepare the Relay619
Figure B.1 Establishing a Connection620
Figure B.2 Determining the Computer Serial Port621
Figure B.3 Determining Communications Parameters for the Computer621
Figure B.4 Setting Terminal Emulation622
Figure B.5 Terminal Emulation Startup Prompt622
Failure to Connect622
Figure B.6 Correcting the Port Setting623
Figure B.7 Correcting the Communications Parameters623
Save Settings and Other Data623
Backup Relay Settings624
Start SEL625
Figure B.8 Preparing Hyperterminal for ID Command Display625
Figure B.9 List of Commands Available in SEL626
Establish a High-Speed Connection626
Match Computer Communications Speed to the Relay626
Figure B.10 Matching Computer to Relay Parameters627
Download Existing Firmware627
Figure B.11 Example Receive File Dialog Box627
Figure B.12 Example Filename Identifying Old Firmware Version628
Figure B.13 Downloading Old Firmware628
Upload New Firmware628
Figure B.14 Selecting New Firmware to Send to the Relay629
Figure B.15 Transferring New Firmware to the Relay630
No Access Level 0 = Prompt630
Table B.1 Troubleshooting New Firmware Upload630
Check Relay Self-Tests631
Verify Settings, Calibration, Status, Breaker Wear, and Metering633
Figure B.16 Preparing Hyperterminal for ID Command Display634
Return the Relay to Service635
Ethernet Port Firmware Upgrade Instructions635
Required Equipment635
Figure B.17 Establishing an FTP Connection636
Figure B.18 Alternate Method of Establishing an FTP Connection637
Figure B.19 Read (Open) File637
Figure B.20 Page Cannot be Displayed Window638
Transfer New Firmware638
Establish a Telnet Connection638
Verify Firmware Transfer638
SEL Distributed Port Switch Protocol640
Appendix C: SEL Distributed Port Switch Protocol Settings641
Operation642
Appendix D: Configuration, Fast Meter, and Fast Operate Commands645
Message Lists645
Table D.1 Binary Message List645
Table D.2 ASCII Configuration Message List645
Message Definitions646
Table D.3 A5CO Relay Definition Block646
Table D.4 A5C1 Fast Meter Configuration Block646
Table D.5 A5D1 Fast Meter Data Block648
A5C2/A5C3 Demand/Peak Demand Fast Meter Configuration Messages648
Table D.6 A5C2/A5C3 Demand/Peak Demand Fast Meter Configuration Messages649
Table D.7 A5D2/A5D3 Demand/Peak Demand Fast Meter Message651
Table D.8 A5CE Fast Operate Configuration Block651
Table D.9 AFE0 Fast Operate Remote Bit Control653
Table D.10 A5E3 Fast Operate Breaker Control654
Table D.11 A5CD Fast Operate Reset Definition Block654
Table D.12 A5ED Fast Operate Reset Command655
DNA Message655
BNA Message657
SNS Message657
Appendix E: Compressed ASCII Commands658
CASCII Command-General Format659
CASCII Command-SEL-351S661
CSTATUS Command-SEL-351S662
CHISTORY Command-SEL-351S663
CEVENT Command-SEL-351S664
Appendix F: Setting Negative-Sequence Overcurrent Elements668
Setting Negative-Sequence Definite-Time Overcurrent Elements668
Setting Negative-Sequence Time-Overcurrent Elements669
Figure F.1 Minimum Response Time Added to a Negative-Sequence Time-Overcurrent Element 51QT669
Coordinating Negative-Sequence Overcurrent Elements670
Coordination Guidelines670
Coordination Example671
Figure F.2 Distribution Feeder Protective Devices671
Figure F.3 Traditional Phase Coordination671
Apply the Feeder Relay Negative-Sequence Overcurrent Element672
Figure F.4 Phase-To-Phase Fault Coordination672
Figure F.5 Negative-Sequence Overcurrent Element Derived from Equivalent Phase Overcurrent Element, 51EP673
Negative-Sequence Overcurrent Element Applied at a Distribution Bus (Guideline 5)673
Ground Coordination Concerns673
Other Negative-Sequence Overcurrent Element References674
Appendix G: Setting SEL OGIC Control Equations676
Relay Word Bits677
Table G.1 Logic Outputs of the Phase Time-Overcurrent Element677
Phase Time-Overcurrent Element 51P1T Pickup Indication677
Table G.2 Common Uses for Relay Word Bits 51P1, 51P1T, and 51P1R678
SEL OGIC Control Equations680
Table G.3 SEL OGIC Control Equation Operators (Listed in Processing Order)680
SEL OGIC Control Equation NOT Operator681
Example of NOT Operator ! Applied to Single Element681
Example of NOT Operator ! Applied to Multiple Elements (Within Parentheses)681
SEL OGIC Control Equation Rising Edge Operator682
Table G.4 Relay Word Bits in Factory Setting Example682
Figure G.1 Result of Rising Edge Operators on Individual Elements in Setting er683
SEL OGIC Control Equation Falling Edge Operator683
Figure G.2 Result of Falling Edge Operator on a Deasserting Underfrequency Element684
Table G.5 SEL OGIC Control Equation Settings Limitations687
Processing Order and Processing Interval688
Table G.6 Processing Order of Relay Elements and Logic (Top to Bottom)688
Table G.7 Asynchronous Processing Order of Relay Elements690
Appendix H: Distributed Network Protocol692
Overview692
Configuration693
Table H.1 Port Settings for Standard Mode DNP Operation693
Table H.2 Port Settings for Extended Mode DNP Operation693
EIA-232 Physical Layer Operation695
Data-Link Operation696
Data Access Method697
Table H.3 Data Access Methods697
Device Profile698
Table H.4 SEL-351S DNP3 Device Profile698
Object Table700
Table H.5 SEL-351S DNP Object Table700
Data Map705
Table H.6 SEL-351S DNP Data Map705
Table H.7 Analog 105 Upper Byte Definitions708
Table H.8 Analog 105 Lower Byte Definitions708
Table H.9 Control Field708
Relay Summary Event Data709
Point Remapping711
Appendix I: MIRRORED BITS Communications (in Firmware Versions 6 and 7) Overview717
Table I.1 MIRRORED BITS717
Operation718
Message Transmission718
Message Decoding and Integrity Checks718
Loopback Testing719
Channel Monitoring719
Table I.2 Error Types Reported by the Communications Report719
MIRRORED BITS Protocol for the Pulsar 9600 Baud Modem721
Settings722
Appendix J: SEL-351S Fast SER Protocol726
Introduction726
Make Sequential Events Recorder (SER) Settings with Care727
Recommended Message Usage728
Functions and Function Codes729
Table J.1 Function Code 01 Message Format729
Table J.2 02 Function Code Message Format730
Table J.3 Function Code 18 Message Format730
Table J.4 Message Format for Lost SER Records731
Acknowledge Message Sent from Master to Relay, and from Relay to Master732
Table J.5 Acknowledge Message Format732
Table J.6 Supported Response Codes732
Appendix K: AC SEL ERATOR Quickset SEL-5030 Software734
Introduction734
AC SEL ERATOR Quickset System Requirements735
Installation736
Starting AC SEL ERATOR Quickset737
Appendix Lsel Synchrophasors738
Overview738
Introduction739
Synchrophasor Measurement740
Figure L.1 Phase Reference740
External Equipment Compensation741
Figure L.2 Waveform at Relay Terminals May Have Phase Shift741
Figure L.3 Correction of Measured Phase Angle741
Protocol Operation742
Table L.1 SEL Fast Message Protocol Format742
Table L.2 Unsolicited Fast Message Enable Packet743
Table L.3 Unsolicited Fast Message Disable Packet743
Table L.4 Permissible Message Periods Requested by Enable Message744
Settings745
Table L.5 SEL-351S Global Settings for Synchrophasors745
Table L.6 SEL-351S Serial Port Settings for Synchrophasors745
Descriptions of Synchrophasor Settings746
Synchrophasor Relay Word Bits748
Table L.7 Time Synchronization Relay Word Bits748
View Synchrophasors by Using the MET PM Command749
Figure L.4 Sample MET PM Command Response750
Communications Bandwidth751
Table L.8 SEL Fast Message Voltage and Current Selections Based on PHDATAV and PHDATAI751
SEL-351S Relay Command Summary752
Elements753
Display754
Irrored Bits Irrored Bits757

Sel SEL-351S-5 - User Manual

Table of Contents

Sel SEL-351S-5 Specifications

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Brand	Sel
Model	SEL-351S-5
Category	Relays
Language	English