Schweitzer Engineering Laboratories SEL-751

Figure 2.8 Dual Fiber Ethernet with 2 AVI/4 AFDI Voltage Option with Arc-Flash Detector Inputs, Devicenet Card, and Fast Hybrid 4 DI/4 DO Card (Relay MOT 751501AA3CA70850830)75

Figure 2.9 Single Copper Ethernet, EIA-485 Communication, 8 DO (Form A) Card76

Figure 2.10 Single Copper Ethernet with EIA-232 Communication, 10 RTD Card, 4 DI/4 DO Card and 2 AVI/4 AFDI Voltage Option Card with Arc-Flash Detector Inputs (Relay MOT 751501A1A9X70850230)76

Figure 2.11 no Ethernet, EIA-232 Serial Communications, EIA-232/EIA-485 Communications Card, 8 DI Card, and 8 DO Card (Form A) (Relay MOT 751401AA03A2A850000)77

Figure 2.12 Dual Copper Ethernet, 4 DI/4 DO Card, 14 DI Card, 8 AFDI with Arc-Flash Detector77

With 5 a Phase, 200 Ma Neutral, and Three-Phase LEA Voltage Inputs (8 Vac Relay MOT 751501A4A2BL0L70671)78

Figure 2.13 Dual Copper Ethernet, 14 DI Card, 8 DO (Form B) Card, 2 AVI/4 AFDI Card78

Figure 2.14 Dual 10/100 Base-T Ethernet, EIA-232 Rear Port, Without Single Multimode78

Figure 2.15 Control I/O Connections-4 AI/4 AO Option in Slot D and Fiber-Optic Port in Slot B81

Figure 2.16 Control I/O Connections-Internal RTD Option in Slot D81

AC/DC Control Connection Diagrams82

Figure 2.17 Analog Output Wiring Example82

Table 2.18 Typical Maximum RTD Lead Length82

Figure 2.18 Output OUT103 Relay Output Contact Configuration82

Figure 2.19 OUT103 Contact Fail-Safe and Nonfail-Safe Options83

Figure 2.20 Single-Phase Voltage Connections84

Figure 2.21 Voltage Connections85

Figure 2.22 Typical Current Connections87

Figure 2.23 SEL-751 Provides Overcurrent Protection and Reclosing for a Distribution Feeder (Includes Fast Bus Trip Scheme) (Delta-Connected Pts)88

Figure 2.24 SEL-751 Provides Overcurrent Protection for a Distribution Bus (Includes Fast Bus Trip Scheme) (Wye-Connected Pts)89

Figure 2.25 Transmission Line Directional Overcurrent Protection and Reclosing with Current-Polarization Source Connected to Channel in (Wye-Connected Pts)90

Figure 2.26 SEL-751 Provides Overcurrent Protection for a Delta-Wye Transformer Bank (Wye-Connected Pts)91

Figure 2.27 SEL-751 Provides Overcurrent Protection for a Transformer Bank with a Tertiary Winding (Wye-Connected Pts)92

Figure 2.28 SEL-751 Provides Overcurrent Protection for an Industrial Distribution Feeder (Core-Balance Current Transformer Connected to Channel IN)93

Figure 2.29 SEL-751 Provides Overcurrent Protection for a High-Impedance or Low-Impedance Grounded System (Wye-Connected Pts)94

Figure 2.30 SEL-751 Provides Overcurrent Protection for a Petersen Coil-Grounded System (Wye-Connected Pts)95

Figure 2.31 SEL-751 Provides Overcurrent Protection for an Ungrounded System (Wye-Connected Pts)96

Figure 2.32 SEL-751 Provides Overcurrent Protection for an Ungrounded System (Open-Delta Connected Pts, Broken-Delta 3V0 Connection)97

Figure 2.33 SEL-751 with a 2 AVI/4 AFDI Option Card and the Fiber-Optic-Based Point-Sensor98

Arc-Flash Protection: System Installation98

Figure 2.34 Black-Jacketed Fiber Installation Example99

Figure 2.35 Point-Sensor Assembly99

Figure 2.36 Point-Sensor Installation99

Figure 2.37 Point-Sensor Directivity (0-360° Around the Mounting Plane)100

Figure 2.38 Point-Sensor Directivity (Front to Back, above the Mounting Plane)100

Figure 2.39 Point-Sensor Directivity (Left to Right, above the Mounting Plane)101

Figure 2.40 Clear-Jacketed Fiber Sensor Assembly101

Figure 2.41 Clear-Jacketed Fiber Sensor Mounting Example102

Figure 2.42 Clear-Jacketed Fiber Sensor Components (V-Pin Style)102

Figure 2.43 Clear-Jacketed Fiber Sensor Showing Transition from Clear- to Black-Jacketed Fiber Section102

Figure 2.44 Switchgear Application Example103

Figure 2.45 Bare-Fiber Sensor Assembly with Two Splices104

Figure 2.46 Point Sensor Assembly104

Table 2.19 Optical Budget Calculations104

Figure 2.47 Bare-Fiber Sensor Assembly with Two Additional ST Splice Connectors105

Field Serviceability106

Figure 2.48 Point Sensor Assembly with Two V-Pin Splice Connectors106

Overview109

Table 3.1 SEL Software Solutions109

Setup110

Figure 3.1 Serial Port Communications Dialog Box110

Table 3.2 AC SEL ERATOR Quickset SEL-5030 Software110

Terminal111

Figure 3.3 Network Communication Parameters Dialog Box111

Figure 3.4 Communications Menu111

Settings Database Management and Drivers112

Figure 3.5 Device Response to the ID Command112

Settings114

Table 3.3 File/Tools Menus115

Figure 3.6 Selection of Drivers115

Figure 3.7 Update Part Number116

Figure 3.8 New Setting Screen116

Figure 3.9 Expressions Created with Expression Builder118

Event Analysis119

Figure 3.10 Composite Screens for Retrieving Events119

Figure 3.11 Saving the Retrieved Event120

Meter and Control121

Figure 3.12 Device Overview Screen121

Figure 3.13 Control Screen122

Figure 3.14 Remote Operation Selection123

Figure 3.15 Language Support Options123

Figure 3.16 Spanish Settings Quickset Display124

Figure 3.17 Spanish Control Window (Ventana de Control) Display125

Table 3.4 Quickset Help126

Overview127

Application Data129

Table 4.1 Identifier Settings129

Table 4.2 CT Configuration Settings130

Table 4.3 Voltage Configuration Settings130

Table 4.4 Effect on Group Settings When SINGLEV := y131

Table 4.5 Main Relay Functions that Change with VNOM := off133

Figure 4.1 Low-Energy Analog Voltage Sensor (Capacitive Voltage Divider)133

Table 4.6 Line Parameter Settings136

Table 4.7 Fault Locator Setting137

Table 4.8 Maximum Phase Overcurrent Settings138

Table 4.9 Neutral Overcurrent Settings139

Figure 4.2 Instantaneous Overcurrent Element Logic140

Table 4.10 Residual Overcurrent Settings141

Table 4.11 Negative-Sequence Overcurrent Settings141

Figure 4.3 Instantaneous Overcurrent Element Pickup Time Curve142

Figure 4.4 Instantaneous Overcurrent Element Reset Time Curve142

Table 4.12 A-, B-, and C-Phase Time-Overcurrent Settings143

Table 4.13 Maximum Phase Time-Overcurrent144

Figure 4.5 Phase Time-Overcurrent Elements 51AT, 51BT, and 51CT144

Table 4.14 Negative-Sequence Time-Overcurrent Settings145

Figure 4.6 Maximum Phase Time-Overcurrent Elements 51P1T and 51P2T145

Table 4.15 Neutral Time-Overcurrent Settings146

Figure 4.7 Negative-Sequence Time-Overcurrent Element 51QT146

Table 4.16 Residual Time-Overcurrent Settings147

Figure 4.8 Neutral Time-Overcurrent Elements 51N1T and 51N2T147

Figure 4.9 Residual Time-Overcurrent Elements 51G1T and 51G2T148

Table 4.17 Equations Associated with U.S. Curves149

Table 4.18 Equations Associated with IEC Curves149

Figure 4.13 U.S. Extremely Inverse Curve: U4150

Figure 4.10 U.S. Moderately Inverse Curve: U1150

Figure 4.11 U.S. Inverse Curve: U2150

Figure 4.12 U.S. very Inverse Curve: U3150

Figure 4.14 U.S. Short-Time Inverse Curve: U5151

Figure 4.15 IEC Class a Curve (Standard Inverse): C1151

Figure 4.16 IEC Class B Curve (very Inverse): C2151

Figure 4.17 IEC Class C Curve (Extremely Inverse): C3151

Figure 4.18 IEC Long-Time Inverse Curve: C4152

Figure 4.19 IEC Short-Time Inverse Curve: C5152

Figure 4.21 General Logic Flow of Directional Control for Neutral Ground and Residual Ground Overcurrent Elements (Ungrounded/High-Impedance Grounded Systems; ORDER := U)154

Table 4.19 Available Ground Directional Elements154

Table 4.20 Best Choice Ground Directional Element Logic155

Table 4.21 Ground Directional Element Availability by Voltage Connection Settings156

Table157

Figure 4.23 Internal Enables (DIRQE and DIRQGE) Logic for Negative-Sequence Voltage-Polarized Directional Elements162

Table163

Figure 4.24 Internal Enables (DIRVE and DIRIE) Logic for Zero-Sequence Voltage-Polarized and Channel in Current-Polarized Directional Elements163

Table164

Figure 4.25 Internal Enable (DIRNE) Logic for Zero-Sequence Voltage-Polarized Directional Elements (Low-Impedance Grounded, Petersen Coil-Grounded, and Ungrounded/High-Impedance Grounded Systems)164

Table165

Figure 4.26 Negative-Sequence Voltage-Polarized Directional Element for Neutral Ground and Residual Ground Overcurrent Elements165

Table166

Figure 4.27 Zero-Sequence Voltage-Polarized Directional Element166

Figure 4.28 Channel in Current-Polarized Directional Element167

Figure 4.29 Zero-Sequence Voltage-Polarized Directional Element (Low-Impedance Grounded Systems)168

Figure 4.30 Wattmetric and Incremental Conductance Directional Elements (Petersen Coil-Grounded Systems)169

Figure 4.31 Zero-Sequence Voltage-Polarized Directional Element (Ungrounded/High-Impedance Grounded Systems)170

Figure 4.32 Routing of Directional Elements to Residual Ground Overcurrent Elements171

Figure 4.33 Routing of Directional Elements to Neutral Ground Overcurrent Elements171

Figure 4.34 Direction Forward/Reverse Logic for Residual Ground Overcurrent Elements172

Figure 4.35 Direction Forward/Reverse Logic for Neutral Ground Overcurrent Elements173

Figure 4.36 General Logic Flow of Directional Control for Negative-Sequence and Phase Overcurrent Elements174

Figure 4.37 Negative-Sequence Voltage-Polarized Directional Element for Negative-Sequence and Phase Overcurrent Elements176

Figure 4.38 Positive-Sequence Voltage-Polarized Directional Element for Phase Overcurrent Elements177

Figure 4.39 Routing of Directional Elements to Negative-Sequence and Phase Overcurrent Elements178

Figure 4.40 Direction Forward/Reverse Logic for Negative-Sequence Overcurrent Elements178

Figure 4.41 Direction Forward/Reverse Logic for Phase Overcurrent Elements179

Table 4.22 Directional Control Settings179

Table 4.23 Wattmetric Settings180

Table181

Figure 4.44 Zero-Sequence Impedance Network and Relay Polarity190

Figure 4.45 Zero-Sequence Impedance Plot for Solidly-Grounded, Mostly Inductive System190

Figure 4.46 Low-Impedance Grounded Distribution System with a Ground Fault on Feeder191

Figure 4.47 Zero-Sequence Impedance Network for Low-Impedance Grounded Distribution System with a Ground Fault on Feeder192

Figure 4.50 Zero-Sequence Impedance Plots for Ground Fault on Low-Impedance Grounded Distribution System194

Figure 4.51 Z0MTA Setting Provides Forward/Reverse Ground Fault Discrimination in a Low-Impedance Grounded Distribution System195

Figure 4.52 Zero-Sequence Impedance Network for Ground Fault on Feeder 1198

Figure 4.53 Wattmetric Element Operation for Ground Fault on Feeder 1199

Table200

Table 4.26 Effect of Settings VSCONN and DELTA_Y on Petersen Coil Directional Elements202

Table 4.27 Load-Encroachment Settings204

Figure 4.54 Load-Encroachment Logic205

Table207

Figure 4.55 High-Impedance Fault Current Levels Depend on Ground Surface Type207

Table209

Figure 4.56 HIF Detection Block Diagram209

Table 4.28 High-Impedance Fault (HIF) Detection Settings210

Table 4.29 HIF Relay Word Bits211

Figure 4.57 A-Phase Second Harmonic Blocking212

Table 4.30 Second-Harmonic Blocking Settings213

Figure 4.58 Three-Phase Second- and Fifth-Harmonic Blocking Logic213

Table 4.31 RTD Settings215

Table 4.32 RTD Resistance Versus Temperature216

Figure 4.59 Thermal Alarm and Trip Logic220

Figure 4.60 Thermal Element Current Overload Logic220

Table 4.33 IEC Thermal Element Settings222

Table 4.34 Undervoltage Function223

Table 4.35 Overvoltage Function224

Figure 4.61 Undervoltage Element Logic225

Figure 4.62 Overvoltage Element Logic226

Table 4.36 Operating Quantities for the 27I Element227

Figure 4.63 Logic Diagram of the Inverse-Time Undervoltage Element227

Table 4.37 Inverse-Time Undervoltage Settings228

Table 4.38 Specification of Inverse-Time Undervoltage Protection Element228

Figure 4.64 Inverse Time-Undervoltage Element Curves229

Table 4.39 Operating Quantities for the 59I Element229

Figure 4.65 Logic Diagram of the Inverse-Time Overvoltage Element230

Table 4.40 Inverse-Time Overvoltage Settings230

Figure 4.66 Inverse Time-Overvoltage Element Curves231

Table 4.41 Specification of Inverse-Time Overvoltage Protection Element231

Figure 4.67 Synchronism-Check Voltage Window and Slip Frequency Elements232

Figure 4.68 Synchronism-Check Elements233

Table 4.42 Synchronism-Check Settings234

Figure 4.69 Angle Difference between VP and VS Compensated by Breaker Close Time (Fp < Fs and VP Shown as Reference in this Example)238

Table 4.43 Voltages When Setting SINGLEV := y241

Table 4.44 Power Element Settings241

Figure 4.70 Three-Phase Power Elements Logic242

Figure 4.71 Power Elements Operation in the Real/Reactive Power Plane243

Table 4.45 Power Factor Settings243

Figure 4.72 Power Factor Elements Logic244

Table 4.46 Loss-Of-Potential (LOP) Setting245

Figure 4.73 Loss-Of-Potential (LOP) Logic246

Figure 4.74 Logic Diagram of the Vector Shift Element247

Table 4.47 Vector Shift Element Settings249

Table 4.48 Frequency Settings249

Figure 4.75 Over- and Underfrequency Element Logic250

Table 4.49 Rate-Of-Change-Of-Frequency Settings250

Figure 4.76 81R Frequency Rate-Of-Change Scheme Logic251

Table 4.50 Time Window Versus 81Rntp Setting251

Figure 4.77 81RF Characteristics252

Table 4.51 Fast Rate-Of-Change-Of-Frequency Settings253

Figure 4.78 81RF Fast Rate-Of-Change-Of-Frequency Logic254

Table 4.52 Trip/Close Logic Settings255

Figure 4.79 Trip Logic255

Figure 4.81 Reclose Supervision Logic (Following Open Interval Time-Out)258

Figure 4.82 Reclose Supervision Limit Timer Operation259

Figure 4.83 SEL-751 Relays Installed at both Ends of a Transmission Line in a High-Speed Reclose Scheme262

Figure 4.84 Reclosing Relay States and General Operation264

Table 4.53 Relay Word Bit and Front-Panel Correspondence to Reclosing Relay States265

Table 4.54 Reclosing Control Settings267

Figure 4.85 Reclosing Sequence from Reset to Lockout with Example Settings268

Table 4.55 Shot Counter Correspondence to Relay Word Bits and Open Interval Times270

Table 4.56 Open Interval Time Example Settings274

Figure 4.86 Reclose Blocking for Islanded Generator274

Figure 4.87 Sequence Coordination between the SEL-751 and a Line Recloser277

Figure 4.88 Operation of SEL-751 Shot Counter for Sequence Coordination with Line Recloser (Additional Settings Example 1)277

Table 4.57 Demand Meter Settings280

Figure 4.90 Demand Current Logic Outputs280

Figure 4.91 Response of Thermal and Rolling Demand Meters to a Step Input (Setting DMTC = 15 Minutes)281

Figure 4.92 Voltage VS Applied to Series RC Circuit282

Logic Settings (SET L Command)284

Table 4.58 Enable Settings284

Table 4.59 Latch Bits Equation Settings285

Figure 4.93 Schematic Diagram of a Traditional Latching Device285

Figure 4.94 Logic Diagram of a Latch Switch285

Figure 4.96 Result of Falling-Edge Operator on a Deasserting Input290

Table 4.62 SEL OGIC Variable Settings291

Table 4.63 Counter Input/Output Description292

Table 4.64 Order of Precedence of the Control Inputs293

Figure 4.99 Example of the Effects of the Input Precedence293

Table 4.65 Control Output Equations and Contact Behavior Settings294

Table 4.66 General Global Settings295

Figure 4.100 Phase Rotation Setting295

Table 4.67 Event Messenger Settings296

Table 4.68 Setting Group Selection297

Table 4.69 LEA Ratio and Phase Correction Settings for Phase Voltages297

Table 4.70 LEA Ratio and Phase Correction Settings for Synchronism-Check Voltage298

Table 4.71 Time and Date Management Settings298

Table 4.72 Breaker Failure Setting300

Figure 4.101 Breaker Failure Logic301

Figure 4.102 Arc-Flash Instantaneous Overcurrent Element Logic302

Table 4.73 Arc-Flash Overcurrent Settings302

Table 4.74 Arc-Flash Time-Overlight Settings303

Figure 4.103 Inverse Time-Overlight Element Logic304

Figure 4.104 TOL Element Inverse Curve Characteristic304

Table 4.75 Typical Ambient Illumination Light Levels305

Figure 4.105 Analog Input Card Adaptive Name306

Table 4.76 Summary of Steps307

Figure 4.106 Settings to Configure Input 1 as a 4-20 Ma Transducer Measuring Temperatures between -50°C and 150°C309

Table 4.77 Analog Input Card Settings in Slot309

Figure 4.107 Analog Output Number Allocation310

Table 4.78 Analog Output Card Settings in Slot 3310

Figure 4.108 Analog Output Settings311

Figure 4.109 DC Mode Processing312

Figure 4.110 AC Mode Processing312

Figure 4.111 Timing Diagram for Debounce Timer Operation When Operating in AC Mode312

Table 4.81 Setting Change Disable Setting313

Table 4.79 Slot C Input Debounce Settings313

Table 4.80 Data Reset Settings313

Table 4.82 Time Synchronization Source Setting314

Table 4.83 Front-Panel Serial Port Settings314

Table 4.84 Ethernet Port Settings315

Table 4.85 Port Number Settings that Must be Unique316

Table 4.86 Fiber-Optic Serial Port Settings317

Table 4.87 Rear-Panel Serial Port (EIA-232) Settings317

Table 4.88 Rear-Panel Serial Port (EIA-232/EIA-485) Settings318

Table 4.89 Rear-Panel Devicenet Port Settings319

Front-Panel Settings (SET F Command)319

Table 4.90 Display Point and Local Bit Default Settings320

Table 4.91 LCD Display Settings320

Table 4.92 Settings that Always, Never, or Conditionally Hide a Display Point322

Table 4.93 Entries for the Four Strings322

Figure 4.112 Display Point Settings323

Figure 4.113 Front-Panel Display-Both HV and LV Breakers Open323

Figure 4.114 Front-Panel Display-HV Breaker Closed, LV Breaker Open323

Figure 4.115 Front-Panel Display-Both HV and LV Breakers Closed324

Table 4.94 Binary Entry in the Name String Only324

Figure 4.116 Front-Panel Display-HV Breaker Open, LV Breaker Closed324

Figure 4.117 Front-Panel Display-HV Breaker Open, LV Breaker Closed324

Figure 4.118 Front-Panel Display for a Binary Entry in the Name String Only324

Table 4.95 Analog Entry in the Name String Only325

Figure 4.119 Front-Panel Display for an Analog Entry in the Name String Only325

Table 4.97 Example Settings and Displays326

Table 4.96 Entry in the Name String and the Alias Strings326

Figure 4.120 Front-Panel Display for an Entry in (A) Boolean Name and Alias Strings and (B) Analog Name and User Text and Formatting Strings326

Figure 4.121 Front-Panel Display for an Entry in (A) Boolean Name and Alias Strings and (B) Analog Name, User Text and Formatting Strings, and Engineering Units326

Figure 4.122 Adding Temperature Measurement Display Points327

Figure 4.123 Rotating Display327

Figure 4.124 Adding Two Local Bits328

Table 4.98 Target LED Settings329

Table 4.99 Pushbutton LED Settings330

Report Settings (SET R Command)331

Table 4.100 Auto-Removal Settings332

Table 4.101 SER Trigger Settings332

Table 4.102 Enable Alias Settings332

Table 4.103 SET R SER Alias Settings333

Table 4.104 Event Report Settings333

Table 4.105 HIF Event Report Settings334

Table 4.106 Load Profile Settings334

Table 4.107 DNP Map Settings334

Modbus Map Settings (SET M Command)335

Table 4.108 User Map Register Settings335

Overview337

Figure 5.1 Complex Power Measurement Conventions338

Table 5.1 Measured Fundamental Meter Values339

Table 5.2 Thermal Meter Values341

Figure 5.3 METER T Command Report with Rtds342

Table 5.3 RTD Input Status Messages342

Figure 5.4 METER E Command Response343

Figure 5.5 METER RE Command Response343

Table 5.4 Maximum/Minimum Meter Values343

Figure 5.6 METER M Command Response344

Figure 5.7 METER RM Command Response344

Figure 5.8 METER MV Command Response345

Figure 5.9 METER RMS Command Response345

Table 5.5 RMS Meter Values345

Figure 5.10 METER AI Command Response346

Figure 5.11 METER L (Light) Command Response346

Figure 5.12 MET de Command Response347

Table 5.6 Demand Values347

Figure 5.13 MET PE Command Response347

Table 5.7 Synchrophasor Measured Values348

Figure 5.14 MET RA Command Response349

Table 5.8 High-Impedance Fault Metering Measured Values349

Figure 5.15 MET H (HIF) Command Response349

Load Profiling350

Table 5.9 Station DC Battery Monitor Settings351

Figure 5.16 LDP Command Response351

Figure 5.17 DC Under- and Overvoltage Elements352

Breaker Monitor355

Table 5.10 Breaker Maintenance Information for a 25 Kv Circuit Breaker355

Table 5.11 Breaker Monitor Settings356

Figure 5.19 Plotted Breaker Maintenance Points for a 25 Kv Circuit Breaker357

Figure 5.20 SEL-751 Breaker Maintenance Curve for a 25 Kv Circuit Breaker358

Figure 5.22 Breaker Monitor Accumulates 10 Percent Wear360

Figure 5.23 Breaker Monitor Accumulates 25 Percent Wear361

Figure 5.24 Breaker Monitor Accumulates 50 Percent Wear362

Figure 5.25 Breaker Monitor Accumulates 100 Percent Wear363

Figure 5.26 Input Inxxx Connected to Trip Bus for Breaker Monitor Initiation365

Overview367

Table 6.1 Methods of Accessing Settings367

View/Change Settings with the Two-Line Front Panel368

Figure 6.1 Front-Panel Setting Entry Example369

View/Change Settings with the Touchscreen Front Panel370

Table 6.2 SHOW Command Options370

Table 6.3 SET Command Options370

Table 6.4 SET Command Editing Keystrokes371

Setting Entry Error Messages372

Table 6.5 SET Command Format372

Appendix G: IEC 60870-5-103 Communications451

Overview451

Table 7.1 SEL-751 Communications Port Interfaces451

Figure 7.1 Simple Ethernet Network Configuration453

Figure 7.2 Ethernet Network Configuration with Dual Redundant Connections (Failover Mode)454

Figure 7.3 Ethernet Network Configuration with Ring Structure (Switched Mode)454

Figure 7.4 IRIG-B Input (Relay Terminals B01-B02)456

Table 7.2 PRP Settings456

Figure 7.5 IRIG-B Input Via EIA-232 Port 3 (SEL Communications Processor as Source)457

Figure 7.6 IRIG-B Input Via EIA-232 Port 3 (SEL-2401/2404/2407 Time Source)457

Figure 7.7 IRIG-B Input Via Fiber-Optic EIA-232 Port 2 (SEL-2030/2032 Time Source)457

Figure 7.8 IRIG-B Input Via Fiber-Optic EIA-232 Port 2 (SEL-2401/2404/2407 Time Source)458

Figure 7.9 EIA-232 DB-9 Connector Pin Numbers458

Table 7.3 EIA-232/EIA-485 Serial Port Pin Functions458

Table459

Figure 7.10 SEL Cable C234A-SEL-751 to DTE Device459

Figure 7.11 SEL Cable C227A-SEL-751 to DTE Device459

Figure 7.12 SEL Cable C222-SEL-751 to Modem460

Figure 7.13 SEL Cable C272A-SEL-751 to SEL Communications Processor Without IRIG-B Signal460

Figure 7.14 SEL Cable C273A-SEL-751 to SEL Communications Processor with IRIG-B Signal460

Figure 7.15 SEL Cable C387-SEL-751 to SEL-3010460

Communications Protocols461

Table 7.4 Protocols Supported on the Various Ports461

Table 7.5 Settings Associated with SNTP465

Figure466

Table 7.6 Serial Port Automatic Messages467

Table 7.7 Command Response Header Definitions469

Table 7.8 Access Commands470

Table472

Figure 7.16 AFT Command Response472

Table 7.9 ANALOG Command473

Figure 7.17 Breaker Monitor Report474

Figure 7.18 Breaker Wear Report475

Figure 7.19 Breaker Reset Response475

Figure 7.20 CEV HIF Command Response476

Table477

Table 7.10 COM Command478

Table 7.11 CONTROL Command478

Table 7.12 Three Remote Bit States479

Table 7.13 COPY Command479

Table 7.14 COUNTER Command479

Table 7.15 Date Command479

Figure 7.21 Ethernet Port (PORT 1) Status Report When NETMODE := PRP480

Figure 7.22 Ethernet Port (PORT 1) Status Report When NETMODE := FIXED480

Figure 7.23 Ethernet Port (PORT 1) Status Report When NETMODE := FAILOVER, E61850 := Y, and EGSE := y481

Figure 7.24 Ethernet Port (PORT 1) Status Report When NETMODE := SWITCHED481

Table 7.16 EVENT Command (Event Reports)482

Table 7.17 FILE Command482

Figure 7.25 Ethernet Port (PORT 1) Status Report for the Single Ethernet Port Option482

Table 7.18 GOOSE Command Variants483

Figure 7.26 GOOSE Command Response485

Table 7.19 GROUP Command486

Table 7.21 HISTORY Command487

Table 7.22 HIS HIF Command487

Table 7.23 HSG Command488

Figure 7.27 HSG Command Response488

Table 7.24 IDENTIFICATION Command489

Table 7.25 INI HIF Command489

Table 7.26 IRI Command489

Table 7.27 LDP Commands490

Table 7.28 L_D Command (Load Firmware)490

Table 7.29 LOG HIF Command491

Figure 7.28 LOG H (HIF) Command Response491

Table 7.31 Meter Command492

Table 7.32 Meter Class493

Table 7.33 PASSWORD Command494

Table 7.34 Factory-Default Passwords for Access Levels 1, 2, and C494

Table 7.35 Valid Password Characters494

Figure 7.29 PING Command Response495

Table 7.36 PUL Outnnn Command496

Table 7.37 QUIT Command496

Table 7.38 R_S Command (Restore Factory-Defaults)496

Table 7.39 SER Command (Sequential Events Recorder Report)497

Table 7.40 SER D Command497

Table 7.41 SET Command (Change Settings)498

Table 7.42 SET Command Editing Keystrokes498

Figure 7.30 SHOW Command Example499

Table 7.43 SHOW Command (Show/View Settings)499

Table 7.44 STATUS Command (Relay Self-Test Status)501

Table 7.45 STATUS Command Report and Definitions501

Figure 7.31 Typical Relay Output for STATUS S Command502

Table 7.47 SUM HIF Command503

Table 7.48 TARGET Command (Display Relay Word Bit Status)503

Table 7.49 Front-Panel Leds and the TAR 0 Command504

Table 7.50 TEST DB Commands504

Figure 7.32 the Command Example506

Table 7.51 the Command (Preload or Reset Thermal Capacity)506

Table 7.52 TIME Command (View/Change Time)506

Table 7.53 TRIGGER Command (Trigger Event Report)507

Table 7.54 TRIGGER HIF Command507

Table 7.55 VEC Command507

Figure 7.33 CFG.TXT File508

Table 7.56 FTP and MMS Virtual File Structure508

Table 7.57 Settings Directory Files510

Table 7.58 Reports Directory Files510

Table 7.59 Event Directory Files511

Table 7.60 Files Available for Ymodem Protocol512

Table 7.61 FTP and MMS Wildcard Usage Examples513

Table 7.62 Ymodem Wildcard Usage Examples513

Appendix H: Devicenet Communications515

Overview515

Figure 8.1 SEL-751 Front-Panel Models515

Two-Line Display Front Panel516

Figure 8.2 Front-Panel Overview516

Table 8.1 Front-Panel Automatic Messages (FP_AUTO := OVERRIDE)517

Figure 8.3 Access Level Security Padlock Symbol518

Figure 8.4 Password Entry Screen518

Figure 8.5 Front-Panel Pushbuttons519

Table 8.2 Front-Panel Pushbutton Functions519

Figure 8.6 Main Menu520

Figure 8.7 MAIN Menu and METER Submenu520

Figure 8.8 METER Menu and ENERGY Submenu520

Figure 8.9 Relay Response When Energy (or Max/Min, Demand, Peak Demand) Metering Is Reset521

Figure 8.10 Relay Response When no Analog Cards Are Installed521

Figure 8.11 Relay Response When no Math Variables Enabled521

Figure 8.12 MAIN Menu and EVENTS Submenu521

Figure 8.13 EVENTS Menu and DISPLAY Submenu522

Figure 8.14 Relay Response When no Event Data Available522

Figure 8.15 Relay Response When Events Are Cleared522

Figure 8.16 MAIN Menu and TARGETS Submenu522

Figure 8.17 TARGETS Menu Navigation523

Figure 8.18 MAIN Menu and CONTROL Submenu523

Figure 8.19 CONTROL Menu and OUTPUTS Submenu524

Figure 8.20 CONTROL Menu and LOCAL BITS Submenu524

Figure 8.21 MAIN Menu and SET/SHOW Submenu525

Figure 8.22 SET/SHOW Menu526

Figure 8.23 MAIN Menu and Status Submenu526

Figure 8.24 MAIN Menu and Breaker Submenu527

Figure 8.25 Factory Default Front-Panel Leds527

Table 8.3 Possible Warning Conditions (Flashing TRIP LED)528

Figure 8.27 Operator Control Pushbuttons and Leds529

Figure 8.26 Target Reset Pushbutton529

Table 8.4 SEL-751 Front-Panel Operator Control Functions530

Figure 8.28 Touchscreen Display Components and Indicators532

Touchscreen Display Front Panel532

Table 8.5 Touchscreen Display Component and Indicator Descriptions533

Table 8.6 Front-Panel Automatic Messages534

Table 8.7 Sidebar Buttons535

Figure 8.29 Home (Default FPHOME Setting)535

Table 8.8 Home Folders and Applications536

Figure 8.30 Bay Screens Application536

Figure 8.31 Meter Applications537

Table 8.9 Meter Application Availability537

Figure 8.32 Meter Phasors538

Figure 8.33 Meter Fundamental538

Figure 8.34 Meter Energy538

Figure 8.35 Meter Energy Reset538

Table 8.10 Monitor Application Availability539

Figure 8.36 Monitor Applications539

Figure 8.37 Breaker Wear Trips539

Figure 8.38 Breaker Wear A, B, C, and Last Reset539

Table 8.11 Reports Application Availability540

Figure 8.39 Monitor Relay Word Bits540

Figure 8.40 Search Relay Word Bits540

Figure 8.41 Reports Applications540

Figure 8.44 Sequential Events Recorder541

Figure 8.45 Control Applications541

Table 8.12 Control Application Availability542

Figure 8.46 Local Bits Confirmation542

Figure 8.47 Digital Output Pulsing-Slot a542

Figure 8.48 Digital Output Pulsing Confirmation542

Figure 8.49 Local Bits543

Figure 8.50 Local Bits Notification543

Figure 8.51 Local Bits Confirmation543

Figure 8.52 Device Info Applications543

Table 8.13 Device Info Application Availability544

Figure 8.53 Device Status544

Figure 8.54 Device Configuration544

Figure 8.55 Model Number Confirmation544

Figure 8.56 Trip and Diagnostic Messages545

Figure 8.57 Arc-Flash Diagnostics545

Figure 8.58 Arc-Flash Diagnostics Confirmation545

Figure 8.59 Access Level Applications545

Table 8.14 Access Level Application Availability546

Figure 8.60 Authentication546

Figure 8.61 Login Confirmation546

Figure 8.62 Settings Folders and Applications546

Table 8.15 Settings Folder and Application Availability547

Table 8.16 Settings Folders Port, Group, and Date and Time Application Availability547

Figure 8.63 Port Settings548

Figure 8.64 Group Settings548

Figure 8.65 Set 1 Settings548

Figure 8.66 Max Phase Overcurrent Settings548

Figure 8.67 Set/Show Settings Edit548

Figure 8.68 Touchscreen Settings549

Figure 8.69 Touchscreen Settings Edit549

Figure 8.70 Rotating Display549

Appendix D: DNP3 Communications559

Overview559

Figure560

Table 9.1 Circuit Breaker Symbols560

Table 9.2 Disconnect Settings561

Table 9.3 Two-Position Disconnect Symbols561

Figure 9.1 Dual-Point Disconnect Status Logic561

Table 9.4 Local/Remote Breaker Control Settings562

Figure 9.2 Local/Remote Control Mode Indication562

Figure 9.3 Bay Screens Application Display with a Single-Line Diagram563

Figure 9.4 Breaker Control Application563

Figure 9.5 Quickset Front-Panel Options564

Table 9.5 Touchscreen Settings565

Figure 9.6 Quickset Touchscreen Settings565

Figure567

Figure 9.7 Layout of Bay Screen Builder568

Figure 9.8 Project Analysis Pane: Analysis Results Tab570

Figure 9.9 Project Analysis Pane: Constraints Summary Tab570

Figure 9.10 Bay Control Single-Line Diagram Schematic571

Figure 9.11 Device Part Number Touchscreen Configuration Option572

Figure 9.12 Quickset Bay Control Project Management and Project Preview Display572

Figure 9.13 Open Single-Line Diagram in Bay Screen Builder573

Figure 9.14 Drag-And-Drop Symbols573

Table 9.6 Symbols Required for the Single-Line Diagram Schematic in Figure574

Figure 9.15 Selected Breaker Symbol Settings Displayed in the Properties Pane575

Figure 9.16 Close/Open/Alarm Color Property Drop down Menu575

Figure 9.17 Publish Bay Screen Builder Project to Quickset576

Figure 9.18 Quickset Updated Single-Line Diagram and Corresponding Settings576

Figure578

Figure 9.19 Final Bay Screen Builder Rendering580

Figure 9.20 Import/Export of the Bay Control Screen in Quickset581

Figure 9.21 Main Bus and Transfer Bus Bay Control Single-Line Diagram581

Figure 9.22 Tie Breaker Bay Control Single-Line Diagram582

Figure 9.23 Bus 1 and Bus 2 Bay Control Single-Line Diagram582

Figure 9.24 Feeder Bay Control Single-Line Diagram582

Figure 9.25 Incomer with Step-Down Transformer Bay Control Single-Line Diagram582

Appendix E: Modbus RTU Communications583

Overview583

Event Reporting584

Figure 10.1 Example Event Summary585

Table 10.1 Event Types586

Table 10.2 Phase Involvement Event Type587

Figure 10.2 Sample Event History590

Table 10.3 Event Report Current and Voltage Columns591

Table 10.4 Output, Input, Protection, and Control Element Event Report Columns592

Figure 10.3 Example Standard 15-Cycle Event Report 1/4-Cycle Resolution594

Figure 10.4 Derivation of Event Report Current Values and RMS Current Values from Sampled Current Waveform599

Figure 10.5 Derivation of Phasor RMS Current Values from Event Report Current Values600

Figure 10.6 Sample Compressed ASCII Event Report601

Figure 10.7 Sample CEV Report Viewed with Analytic Assistant or605

Figure 10.8 Options for Converting CEV Reports to COMTRADE in Analytic Assistant606

Figure 10.9 Sample COMTRADE .HDR Header File607

Figure 10.10 Sample COMTRADE .CFG Configuration File Data610

High-Impedance Fault (HIF) Event Reporting611

Figure 10.11 Sample HIF Event Summary Report612

Table 10.5 CEV HIF Commands612

Table 10.6 HIF Event Types613

Table 10.7 HIF Event Phases613

Table 10.8 HIF Downed Conductor614

Table 10.9 SUM HIF Command614

Figure 10.12 Sample Compressed ASCII HIF Summary615

Figure 10.13 Sample HIF Event History615

Figure 10.14 Sample Compressed HIF History Report616

Table 10.10 HIS HIF Command616

Figure 10.15 Sample HIF COMTRADE .HDR Header File617

Figure 10.16 Sample HIF COMTRADE .CFG Configuration File Data617

Figure 10.17 Example Sequential Events Recorder (SER) Event Report619

Overview621

Table 11.1 Resultant Scale Factors for Inputs622

Figure 11.1 Low-Level Test Interface (J2 and J4)622

Commissioning Tests623

Figure 11.2 Three-Phase Wye AC Connections625

Figure 11.3 Three-Phase Open-Delta AC Connections625

Table 11.2 Serial Port Commands that Clear Relay Data Buffers626

Table 11.3 Phase Current Measuring Accuracy627

Figure 11.4 Current Source Connections627

Table 11.4 Current Unbalance Measuring Accuracy628

Figure 11.5 Wye Voltage Source Connections628

Table 11.5 Power Quantity Accuracy-Wye Voltages629

Figure 11.6 Delta Voltage Source Connections629

Table 11.6 Power Quantity Accuracy-Delta Voltages630

Periodic Tests (Routine Maintenance)632

Figure 11.7 CEV R Light Event Capture Example632

Table 11.7 Periodic Relay Checks632

Self-Test633

Table 11.8 Relay Self-Tests634

Table 11.9 Troubleshooting636

Factory Assistance637

Appendix A: Firmware, ICD, and Manual Versions646

ICD File646

Overview661

Upgrade Firmware Using Quickset662

Upgrade Firmware Using a Terminal Emulator666

Figure B.1 Firmware File Transfer Process667

Protocol Verification for Relays with IEC 61850 Option668

Factory Assistance669

Table C.1 Supported Serial Command Sets671

Appendix C: SEL Communications Processors671

SEL Communications Protocols671

Figure C.2 Multitiered SEL Communications Processor Architecture674

SEL Communications Processor and Relay Architecture675

DNP3 in the SEL-751690

Appendix F: IEC 61850 Communications777

Features777

Table F.1 IEC 61850 Document Set778

IEC 61850 Operation779

Logical Nodes795

Protocol Implementation Conformance Statement818

ACSI Conformance Statements824

Appendix I: Synchrophasors829

Overview829

IEC 60870-5-103 Documentation840

Figure H.1 Devicenet Card Component Overview841

Features842

Electronic Data Sheet843

Appendix J: MIRROREDBITS Communications845

Overview845

Figure I.1 Phase Reference846

Synchrophasor Measurement846

Settings for Synchrophasors848

View Synchrophasors Using the MET PM Command857

Figure I.7 Sample MET PM Command Response858

C37.118 Synchrophasor Protocol858

IEEE C37.118 PMU Setting Example860

Date Code911

Figure 4.80 Close Logic913

Figure 4.98 Counter913

Figure 8.42 Event History914

Figure 8.43 Event Summary914

Table 7.46 SUMMARY Command914

Schweitzer Engineering Laboratories SEL-751 - Page 4

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