This two-day course provides hands-on application examples and step-by-step settings guidance for the SEL-700G Generator Protection Relay. This activity-based course includes applying simplified calculation methods and recommendations, and using data from real-world generator examples to develop protection settings. Students (in groups of two) will work directly with an SEL‑700G Generator Protection Relay to configure system data and determine protection settings.
This course is designed for utility and industrial protection engineers and power system consultants.
Differential (87) Element Settings
Stator Ground (64G) Element Settings
Field Ground (64F) Element Settings
Negative-Sequence Current Unbalance (46) Element Settings
Overexcitation Volts/Hertz (24C) Element Settings
Synchronism-Check (25C) Element Settings
Loss-of-Field (40) Element Settings
Restricted Earth Fault (REF) Element Settings
Optional: Ground Differential (87N) Element Settings
Neutral Time-Overcurrent (51N) Element Settings
Optional: Voltage-Restraint Time-Overcurrent (51V) Element Settings
Reverse Power (32) Element Settings
Event Report Retrieval and Analysis
At the conclusion of this course, students can:
Use acSELerator QuickSet SEL-5030 Software to read and send settings to the relay.
Enter system and generator data into configuration software.
Set two-zone stator and field (rotor) ground detection schemes.
Determine effective settings for differential, current unbalance, overexcitation, and loss-of-field protection.
Protect small generators and large (387 MVA, 22 kV) unit-connected generation systems.
Synchronize generator-breaker close operations.
Verify relay tripping and protection for various faults and abnormal conditions.
Apply IEEE standards and formulas to determine a range of protection settings.
Student Background and Knowledge
Before you attend this class, we recommend that you: