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SEL-421-1
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Manuals and User Guides for Sel SEL-421-1. We have
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Sel SEL-421-1 manual available for free PDF download: User Manual
Sel SEL-421-1 User Manual (318 pages)
Protection,Automation, Control
Brand:
Sel
| Category:
Relays
| Size: 9.96 MB
Table of Contents
Table of Contents
3
List of Tables
9
Jumpers...................................................................................................................................................... U
9
Features........................................................................................................................................................ U
11
Index
14
Section 4: Basic Relay Operations
22
Connection................................................................................................................................................. U
22
Section 2: Installation
31
List of Equations
31
Section 3: PC Software
31
List of Examples
35
Manual Change Information
37
Preface
39
User's Guide
40
Glossary
40
Section 1: Introduction and Specifications
47
Features
48
Models and Options
51
Applications
52
Section 4: Basic Relay Operations
132
Section 1: Introduction and Specifications
55
Table 1.1 Application Highlights
55
Specifications
57
Section 2: Installation
61
Shared Configuration Attributes
62
Plug-In Boards
72
Table 2.1 I/O Interface Boards Control Inputs
72
Table 2.2 I/O Interface Boards Control Outputs
73
Jumpers
77
Table 2.3 Main Board Jumpers
79
Table 2.4 Main Board Jumpers-JMP1, JMP2, and JMP3
80
Table 2.5 I/O Board Jumpers
85
Front-Panel Labels
86
Table 2.6 Configurable Front-Panel Label Kits
87
Table 2.7 Options for Configurable Front-Panel Labels
88
Relay Placement
91
Connection
93
Table 2.8 Fuse Requirements for the SEL-421 Relay Power Supply
98
AC/DC Connection Diagrams
107
Section 3: PC Software
111
Installing the Computer Software
112
Communications Setup
114
Settings Database Management and Drivers
116
Figure 3.9 HMI Driver Version Number in the HMI Window
118
Create and Manage Relay Settings
119
Figure 3.14 AC SEL ERATOR Software Relay Editor
121
Figure 3.15 Retrieving the Relay Part Number
122
Expression Builder
123
Figure 3.17 Location of EB Option Button
123
Figure 3.18 the AC SEL ERATOR Expression Builder
123
Analyze Events
125
Figure 3.19 Retrieving Relay Event History
125
Figure 3.20 AC SEL ERATOR Event Waveform Window
126
Figure 3.21 Sample Event Oscillogram
126
Figure 3.22 Retrieving Event Report Waveforms
126
Figure 3.23 Sample Phasors Event Waveform Screen
127
Figure 3.24 Sample Harmonic Analysis Event Waveform Screen
127
Figure 3.25 Sample Event Report Summary Screen
128
Figure 3.26 Sample Event Waveform Settings Screen
128
Figure 3.27 AC SEL ERATOR HMI Features
129
HMI Meter and Control
129
Section 4: Basic Relay Operations
131
Figure 4.1 SEL-421 Relay Serial Number Label
132
Inspecting a New Relay
132
Connecting and Applying Power
134
Figure 4.2 Power Connection Area of the Rear Panel
134
Table 4.1 Power Supply Voltage Inputs
134
Establishing Communication
135
Figure 4.3 PORT F, LCD Display, and Navigation Pushbuttons
135
Figure 4.4 Report Header
136
Table 4.2 General Serial Port Settings
136
Changing the Default Passwords
138
Figure 4.5 Access Level Structure
138
Table 4.3 SEL-421 Relay Access Levels
138
Table 4.4 Access Level Commands and Passwords
139
Figure 4.6 Default Passwords
141
Checking Relay Status
142
Figure 4.10 Checking Relay Status: Front-Panel LCD
144
Making Simple Settings Changes
145
Figure 4.11 Relay Settings Structure Overview
146
Table 4.5 Settings Classes and Instances
147
Figure 4.12 Components of SET Commands
148
Table 4.6 Actions at Settings Prompts
149
Figure 4.13 Initial Global Settings
150
Table 4.7 Actions at Text-Edit Mode Prompts
151
Figure 4.14 Using Text-Edit Mode Line Editing to Set Display Points
153
Figure 4.15 Using Text-Edit Mode Line Editing to Delete a Display Point
154
Figure 4.16 Selecting Global Settings in the AC SEL ERATOR Software
156
Figure 4.17 the AC SEL ERATOR Software Global Settings Window
156
Figure 4.18 Uploading Global Settings to the SEL-421 Relay
157
Figure 4.19 DATE and TIME Settings: Front-Panel LCD
158
Figure 4.20 SETTINGS Menus
160
Examining Metering Quantities
161
Figure 4.21 Setting ESS: Terminal
161
Figure 4.22 Setting CTRW and PTRY: Terminal
162
Figure 4.23 Test Connections Using Three Voltage Sources/Three Current Sources
162
Figure 4.24 Test Connections Using Two
163
Figure 4.25 Terminal Screen MET Metering Quantities
164
Figure 4.30 Front-Panel Screens for METER
168
Figure 4.7 Relay Status
168
Reading Oscillograms, Event Reports, and SER
169
Figure 4.34 Relay Event History Dialog Box
172
Figure 4.35 Sample HIS Command Output: Terminal
172
Figure 4.36 EVENTS Folder Files
173
Figure 4.42 Uploading Report Settings to the SEL-421 Relay
178
Figure 4.43 Retrieving SER Records with the AC SEL ERATOR Software
179
Figure 4.44 SER Records in the AC SEL ERATOR HMI
179
Figure 4.45 Setting an SER Element: Terminal
180
Figure 4.46 Reports File Structure
181
Figure 4.47 Terminal Display for PULSE Command
182
Operating the Relay Inputs and Outputs
182
Figure 4.48 Front-Panel Menus for Pulsing OUT104
183
Figure 4.49 Password Entry Screen
184
Figure 4.51 Setting Control Output OUT105: Terminal
186
Figure 4.54 Uploading Output Settings to the SEL-421 Relay
189
Figure 4.55 Setting 52AA1: Terminal
191
Configuring High-Accuracy Timekeeping
196
Table 4.8 Time Source Automatic Switching Enable Settings
196
Figure 4.61 TIME BNC Jacks
197
Figure 4.62 Confirming the High-Accuracy Timekeeping Enable Settings
198
Figure 4.63 Results of the TIME Q Command
198
Table 4.9 Date/Time Last Update Sources
199
Readying the Relay for Field Application
202
Table 4.10 Communications Port Commands that Clear Relay Buffers
203
Section 5: Front-Panel Operations
206
Section 4: Basic Relay Operations
134
Section 5: Front-Panel Operations
205
Figure 5.1 SEL-421 Relay Front Panel
206
Front-Panel Layout
206
Figure 5.2 LCD Display and Navigation Pushbuttons
207
Table 5.1 Front-Panel Inactivity Time-Out Setting
207
Figure 5.3 RELAY ELEMENTS Highlighted in MAIN MENU
208
Table 5.2 Metering Screens Enable Settings
208
Figure 5.4 Sample ROTATING DISPLAY
209
Figure 5.5 Sample Display Points Screen
210
Table 5.3 Display Point Settings
211
Figure 5.6 Fast Meter Display Points Sample Screen
212
Figure 5.7 Contrast Adjustment
213
Front-Panel Menus and Screens
213
Figure 5.8 Enter Password Screen
214
Figure 5.9 Invalid Password Screen
214
Figure 5.10 MAIN MENU
215
Figure 5.12 METER SUBMENU
216
Figure 5.17 RELAY ELEMENTS Screen
220
Figure 5.18 ELEMENT SEARCH Screen
220
Figure 5.19 LOCAL CONTROL Initial Menu
221
Figure 5.21 LOCAL CONTROL Example Menus
223
Table 5.4 Local Bit Control Settings
223
Figure 5.22 OUTPUT TESTING Screen
225
Table 5.5 Settings Available from the Front Panel
225
Figure 5.25 Changing the ACTIVE GROUP
227
Figure 5.26 DATE/TIME Screen
228
Figure 5.31 RESET ACCESS LEVEL Screen
231
Figure 5.33 Sample Status Warning in the LCD Message Area
232
Front-Panel Automatic Messages
232
Figure 5.34 Factory Default Front-Panel Target Areas
234
Operation and Target Leds
234
Table 5.6 TIME Target LED Trigger Elements-Factory Defaults
236
Figure 5.35 Operator Control Pushbuttons and Leds
238
Front-Panel Operator Control Pushbuttons
238
Table 5.7 Operator Control Pushbuttons and Leds-Factory Defaults
238
Figure 5.36 Factory Default Operator Control Pushbuttons-Left Side
239
Figure 5.37 Factory Default Operator Control Pushbuttons-Right Side
240
Section 6: Testing and Troubleshooting
247
Section 5: Front-Panel Operations
207
Section 6: Testing and Troubleshooting Testing Philosophy
242
Table 6.3 Maintenance Testing
243
Testing Features and Tools
245
Figure 6.1 Low-Level Test Interface
247
Table 6.4 UUT Database Entries for SEL-5401 Relay Test System Software-5 a Relay
248
Table 6.5 UUT Database Entries for SEL-5401 Relay Test System Software-1 a Relay
248
Relay Test Connections
249
Figure 6.3 Test Connections Using Two Current Sources for
250
Table 6.6 Phase Instantaneous Overcurrent Pickup
254
Test Methods
254
Figure 6.7 Sample Targets Display on a Serial Terminal
255
Figure 6.8 Viewing Relay Word Bits from the Front-Panel LCD
256
Figure 6.10 Uploading Front-Panel Settings to the SEL-421 Relay
258
Figure 6.12 Uploading Output Settings to the SEL-421 Relay
259
Table 6.7 Selectable Operating Quantity Time-Overcurrent Element (51S1) Default Settings
260
Figure 6.15 Uploading Group 1 and Report Settings to SEL-421 Relay
262
Figure 6.16 HMI Tree View: AC SEL ERATOR Software
263
Figure 6.17 SER Report: AC SEL ERATOR HMI
263
Checking Relay Operation
264
Figure 6.19 Negative-Sequence Instantaneous
266
Figure 6.20 Uploading Group 1 Settings to the SEL-421 Relay
266
Figure 6.21 ELEMENT SEARCH Screen
267
Figure 6.22 RELAY ELEMENTS Screen Containing Element 50Q1
267
Figure 6.27 Uploading Group 1 and
271
Table 6.8 Negative-Sequence Directional Element Settings AUTO Calculations
271
Figure 6.28 RELAY ELEMENTS LCD
272
Figure 6.29 Finding Phase-To-Phase Test Quantities
274
Figure 6.30 Phase Distance Elements Settings: AC SEL ERATOR Software
276
Figure 6.31 RELAY ELEMENTS LCD Screen Containing Element MBC2
276
Relay Self-Tests
277
Figure 6.33 Relay Status from a STATUS a Command on a Terminal
278
Figure 6.34 Compressed ASCII CST Command on a Terminal
279
Relay Troubleshooting
280
Table 6.9 Troubleshooting Procedures
280
Factory Assistance
283
Appendix A: Firmware Versions
285
Table A.1 Firmware Versions
285
Section 6: Testing and Troubleshooting
308
Table 6.2 Commissioning Testing
308
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