Schweitzer Engineering Laboratories SEL-321-1 Manuals

Manuals and User Guides for Schweitzer Engineering Laboratories SEL-321-1. We have 1 Schweitzer Engineering Laboratories SEL-321-1 manual available for free PDF download: Instruction Manual

Schweitzer Engineering Laboratories SEL-321-1 Instruction Manual

Schweitzer Engineering Laboratories SEL-321-1 Instruction Manual (396 pages)

PHASE AND GROUND DISTANCE RELAY; DIRECTIONAL OVERCURRENT RELAY; FAULT LOCATOR

Brand: Schweitzer Engineering Laboratories | Category: Relays | Size: 6.14 MB

Table of Contents

Table of Contents

11
Section 2: Specifications

21
- Section 2: Specifications
  25
Section 3: Communications

109
- Communications Protocol
  111
  - Software Protocol
    111
  - Additional Software Protocol (SEL-321-1 Relay Only)
    112
  - Hardware Protocol
    113
  - Alarm Conditions
    113
  - Main Board Jumpers
    113
  - Automatic Messages
    114
- Introduction
  111
- Section 3: Communications
  111
- Command Characteristics
  114
  - Changing Access Levels
    116
  - Command Format
    116
- Description of Commands
  116
  - 2Access
    116
  - Access
    117
  - Breaker
    117
  - Close
    117
  - Comm
    118
  - CONTROL N (SEL-321-1 Relay Only)
    119
  - COPY M N
    120
  - Date
    120
  - Event
    121
  - Group
    121
  - History
    122
  - Irig
    123
  - Loop
    124
  - Meter
    125
  - Open
    125
  - Password
    126
  - PULSE N T (SEL-321-1 Relay Only)
    127
  - Quit
    127
  - RDMEM M (SEL-321-1 Relay Only)
    127
  - SET Commands
    127
  - SET N
    129
  - Showset
    132
  - Set G
    133
  - Showset G
    134
  - Set L
    134
  - Showset L
    137
  - Set P
    138
  - Showset P
    139
  - Status
    140
  - Target
    142
  - Time
    143
  - Trigger
    143
- Front-Panel Operation
  144
- LCD Functions and Front-Panel Commands
  144
  - Front-Panel Reset
    145
  - Target Reset
    145
  - Default Display
    145
  - Target Command
    145
  - Fault Command
    146
  - Meter Display
    147
  - Group Selector
    147
  - Status Display
    147
  - Diagnostic Messages
    149
  - Password Access
    149
  - Setting Changes Via Front Panel
    149
- SEL-321-1 Target Information
  155
- Sel-321 Relay Command Summary
  157
- SEL-321-1 Relay Command Summary
  159
Section 4: Event Reporting

161
- Event Report Generation
  163
- Section 4: Event Reporting
  163
- Summary Event Report
  164
- Default Event Report
  165
- Computer Event Report
  166
- Interpretation of Quarter-Cycle Voltage and Current Data
  166
- Long Event Report
  166
- MIRRORED BITS ™ Display Event Report
  166
- Unfiltered Event Report
  166
- Relay Element Columns Data
  167
- Contact Inputs and Outputs Columns
  169
- Example Event Reports
  170
  - Example Event Report 1
    170
  - Example Event Report 2
    172
  - Example Event Report 2 (Continued)
    173
- Firmware Identification
  174
Section 5: Applications

175
- Purpose
  177
- Section 5: Applications
  177
- Relay Settings
  178
  - Relay Terminal Settings
    178
    
    Identifier
    178
    
    Fault Locator Enable and Line Length
    179
    
    Positive- and Zero-Sequence Line Impedances
    179
  - Enable Desired Distance Zones and Directional Sense
    179
  - Phase and Ground Distance Element Setting Criteria
    180
    
    Zone 1 Setting
    180
    
    Zone 2 Setting
    180
    
    Zone 3 Setting
    181
  - Phase Distance Overcurrent Supervision Setting Criteria
    182
    
    Zone 1 Setting
    182
    
    Zone 2 Setting
    182
    
    Zone 3 Setting
    182
  - Ground Distance Overcurrent Supervision Setting Criteria
    183
    
    Zone 1 Setting
    183
    
    Zone 2 Setting
    183
    
    Zone 3 Setting
    183
  - Distance Element Setting Calculations
    184
  - Zero-Sequence Compensation Factor and Non-Homogeneous Angle Settings
    185
    
    Non-Homogeneous Angle Setting
    185
    
    Zero-Sequence Compensation Factor Setting
    185
  - Out-Of-Step Setting
    186
  - Load-Encroachment Logic Setting
    186
  - Negative-Sequence Directional Element Settings
    187
  - Phase Time-Overcurrent Element Setting
    189
  - Residual Overcurrent Settings
    189
    
    Instantaneous/Definite-Time Residual Overcurrent Settings
    189
    
    Residual Time-Overcurrent Settings
    189
  - Negative-Sequence Overcurrent Settings
    190
    
    Negative-Sequence Time-Overcurrent Settings
    190
  - Voltage Elements
    191
  - Time-Step Backup Time Delay Settings
    191
  - Permissive Overreaching Scheme Logic
    192
  - Directional Comparison Unblocking Scheme Logic
    194
  - Zone 1 Extension Logic Setting
    194
  - Remote-End-Just-Opened (REJO) Enable Setting (EREJO)
    194
  - Switch-Onto-Fault Logic Setting
    194
  - Loss-Of-Potential (LOP) Enable Setting (ELOP)
    195
  - Miscellaneous Scheme Logic
    198
  - Miscellaneous Timers
    199
  - SEL OGIC Control Equations
    200
  - Logic Variable Equations
    200
  - Tripping Logic Equations
    200
  - Event Report Trigger Condition Logic
    201
  - Output Contact Logic
    201
  - Global Input Settings
    202
- System Data
  178
- Settings Sheet for SEL-321 Relay Setting Example
  202
- Event Report Trigger Condition Logic
  210
- Output Contact Logic
  210
- Serial Port Settings
  212
  - Serial Port Settings (See Appendix G for LMD and Appendix H for M IRRORED
    212
  - Bits ™)
    212
Section 6: Installation

233
- Initial Checkout
  235
- Section 6: Installation
  235
- Mounting and Connections
  236
  - Mounting
    236
  - Rear-Panel Plug-In Connectors Option (Figure 6.10 through Figure 6.12)
    236
  - Frame Ground Connection
    237
  - Power Connections
    237
  - Secondary Circuit Connections
    237
  - Control Circuit Connections
    237
    
    Alarm Contact Connection
    238
    
    Control Inputs
    238
    
    Control Outputs
    238
  - IRIG-B Input Connection
    239
  - Communication Circuit Connections
    239
  - Communication Cables
    240
    
    EIA-232 Cables
    241
- Communications
  242
  - Modems
    242
  - Telephone Line Communications
    243
  - Data Flow Control
    243
  - Baud Rate
    243
  - Passwords
    243
- Jumper Settings
  244
  - Main Board Jumpers
    244
  - Input/Output Connections
    244
  - Open the SEL-321 Relay to Access Internal Jumpers
    244
  - Set Jumpers
    245
  - Reassemble the SEL-321 Relay
    245
- Installation
  245
- SEL Direction and Polarity Check Form
  263
Section 7: Maintenance and Testing

267
Table of Contents

331

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