Schweitzer Engineering Laboratories SEL-701 - List of Examples

Date Code 20010719 701 Motor Protection Relay
List of Examples
Section 1: Introduction & Specifications
Example 1.1 SEL-701 Relay Part Number Creation ....................................1.8
Section 2: Installation
Example 2.1 Phase CT Ratio Selection ........................................................2.10
Section 3: SEL-701PC Software
Section 4: Settings Calculation
Example 4.1 Phase CT Ratio Setting Calculation ..........................................4.4
Example 4.2 Phase VT Ratio Setting Calculations.........................................4.6
Example 4.3 Thermal Element Rating Method Setting................................4.10
Example 4.4 Locked Rotor Trip Time Dial Setting Calculation...................4.10
Example 4.5 Thermal Element Generic Method Setting ..............................4.12
Example 4.6 Thermal Element User Method Setting ...................................4.18
Example 4.7 Learned Starting Thermal Capacity Calculation .....................4.21
Example 4.8 Ground Fault CT Application..................................................4.24
Section 5: Front-Panel Operation
Section 6: ASCII Serial Port Operation
Section 7: Commissioning
Section 8: Metering & Monitoring
Section 9: Event Analysis
Section 10: Maintenance & Troubleshooting
Appendix A: Firmware Versions
A
PPENDIX B: SELOGIC
®
Control Equations & Relay Logic
Example B.1 Initiating a Motor Start Using a Relay Contact Input............. B.23
Appendix C: Modbus
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RTU Communications Protocol
Appendix D: SEL-2020/2030 & SEL-701PC Compatibility Features
Appendix E: Motor Thermal Element
Example E.1 Starting and Running Trip Level Calculations ....................... E.11
Appendix F: SEL-701 Relay Settings Sheets