Schweitzer Engineering Laboratories SEL-251-3 Manuals

Manuals and User Guides for Schweitzer Engineering Laboratories SEL-251-3. We have 1 Schweitzer Engineering Laboratories SEL-251-3 manual available for free PDF download: Instruction Manual

Schweitzer Engineering Laboratories SEL-251-3 Instruction Manual (208 pages)

DISTRIBUTION RELAY; PHASE OVERCURRENT RELAY WITH VOLTAGE CONTROL; NEGATIVE-SEQUENCE OVERCURRENT RELAY; GROUND OVERCURRENT RELAY; MULTIPLE SHOT RECLOSING RELAY; SELECTABLE SETTING GROUPS CIRCUIT BREAKER MONITOR; FAULT LOCATOR SELOGIC CONTROL EQUATIONS

Brand: Schweitzer Engineering Laboratories | Category: Relays | Size: 1.59 MB

Table of Contents

7
- Section 1: Introduction
  9
Table of Contents

13
- Section 2: Specifications
  15
Section 3: Communications/Section 3: Communications

57
- Introduction
  59
- Section 3: Communications
  59
- Serial Port Connections and Configurations
  59
- Communications Protocol
  61
- Command Characteristics
  62
  - Startup
    63
- Command Descriptions
  64
  - Access Level 0 Command
    64
    
    Access
    64
  - Access Level 1 Commands
    65
    
    2Access
    65
    
    Breaker
    65
    
    Breaker R
    66
    
    DATE MM/DD/Yy
    66
    
    EVENT N
    67
    
    History
    67
    
    Irig
    69
    
    METER N
    70
    
    Meter D
    71
    
    Meter Rd
    71
    
    Meter Rp
    72
    
    Quit
    72
    
    SHOWSET N
    72
    
    Status
    74
    
    TARGET N K
    74
    
    Target R
    76
    
    TIME Hh:MM:ss
    76
    
    Trigger
    76
  - Access Level 2 Commands
    77
    
    Close
    77
    
    COPY M N
    77
    
    GROUP N
    78
    
    Open
    78
    
    PASSWORD (1 or 2) Password
    79
    
    SET N P
    79
    
    SET G P
    85
- Relay Command Summary
  89
Section 4: Event Reporting/Section 4: Event Reporting

91
- Event Report Generation
  93
- Section 4: Event Reporting
  93
- Summary Event Report
  93
- Interpreting Voltage and Current Data
  94
- Long Event Report
  94
- Relay Element, Output Contact, and Input Data
  95
- Example Event Reports
  97
  - Externally Triggered Event Report
    97
  - Fault Triggered Event Report
    98
  - Example Event Report 1
    99
  - Example Event Report 2
    100
- Firmware Identification
  102
Section 5: Applications/Section 5: Applications

103
Section 6: Installation/Section 6: Installation

135
- Installation: Conventional Terminal Block Model
  137
  - Mounting
    137
  - Frame Ground Connection
    137
  - Power Connections
    137
  - Secondary Circuits
    137
  - Control Circuits
    137
  - Communications Circuits
    137
  - Jumper Selection
    138
    
    EIA-232 Jumpers
    138
    
    Password Protection Jumper
    138
    
    OPEN/CLOSE Command Enable Jumper
    138
    
    A4 Output Contact Jumper
    138
    
    Output Contact Soldered Wire Jumpers
    138
    
    Communication Port External Power Jumpers
    139
    
    Jumper Installation Instructions
    139
  - EIA-232 and IRIG-B Installation
    139
    
    EIA-232 Cables
    140
    
    IRIG-B Input Description
    141
- Section 6: Installation
  137
- Installation: Plug-In Connector Model
  142
  - Mounting
    142
  - Power Connections
    142
  - Secondary Circuits
    142
  - Control Circuits
    143
  - Communications Circuits
    143
  - Jumper Selection
    143
    
    EIA-232 Jumpers
    143
    
    Password Protection Jumper
    144
    
    OPEN/CLOSE Command Enable Jumper
    144
    
    A4 Output Contact Jumper
    144
    
    Communication Port External Power Jumpers
    144
  - EIA-232 and IRIG-B Installation
    144
    
    EIA-232 Cables
    144
    
    IRIG-B Input Description
    146
- Installation Checkout
  147
- SEL Direction and Polarity Check Form
  157
Section 7: Maintenance and Testing/Section 7: Maintenance and Testing

161
- Section 7: Maintenance and Testing
  163
- Test Procedures
  163
  - Test Aids Provided by the Relay
    163
  - Low-Level Test Interface
    164
  - Test Methods
    164
- Initial Checkout
  166
  - Equipment Required
    166
  - Checkout Procedure
    166
- Full Functional Test
  172
  - Equipment Required
    172
  - What Should be Tested
    173
  - Setting Test
    173
  - Meter Test
    173
  - Overcurrent Element Pickup Tests
    175
  - Definite-Time Overcurrent Element Timing Tests
    176
  - Time-Overcurrent Element Timing Tests
    177
  - Demand Ammeter Timing Tests
    178
  - Reclosing Relay Tests Setup
    179
  - Reclosing Relay Reset Interval Timer Test
    181
  - Reclosing Relay Open Interval Timer Test
    182
  - Reclosing Relay States Test
    183
  - Reclosing Relay Shot Bit Test
    184
  - Reclosing Relay Sequence Coordination Test
    185
  - Close Failure Timer Test
    187
  - Trip Failure Timer Test
    188
  - Input Circuits Test
    190
  - Serial Ports Test
    190
  - IRIG-B Time Code Input Test
    190
  - Power Supply Voltages Test
    191
- Relay Calibration
  191
- Troubleshooting
  191
  - Inspection Procedure
    191
  - Troubleshooting Table
    192
- Firmware Upgrade Instructions
  194
  - Upgrade Instructions
    194
- Factory Assistance
  195

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Relays Computer Hardware Transceiver Protection Device Measuring Instruments

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Schweitzer Engineering Laboratories SEL-251-3 Manuals

Schweitzer Engineering Laboratories SEL-251-3 Instruction Manual (208 pages)

Table of Contents

Table of Contents

Table of Contents

Section 3: Communications/Section 3: Communications

Section 4: Event Reporting/Section 4: Event Reporting

Section 5: Applications/Section 5: Applications

Section 6: Installation/Section 6: Installation

Section 7: Maintenance and Testing/Section 7: Maintenance and Testing

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