This program is designed to provide both theoretical knowledge and practical experience, making it suitable for utility and industrial protection engineers.
SEL-421 Training By Dr. Saeed Roostaee
Format: Virtual Classroom (Google Meet, Zoom/Teams) + Simulation Tools
- Overview of SEL-421:
- High-speed distance and directional protection
- Control of two-breaker bays
- Communication protocols
- Front Panel Interface
- Navigation through menus
- Understanding LEDs and pushbuttons
- Configurable mimic screens
- Viewing system status
- Manual control of breakers
- Setting and clearing alarms
Protection Elements Configuration
- Distance Protection (21):
- Setting up phase and ground distance elements
- Configuring multiple zones
- Implementing directional elements
- Overcurrent Protection (50/51):
- Definite time and inverse time characteristics
- Coordination with upstream and downstream devices
- Ground Fault Protection:
- Setting up ground fault elements
- Configuring residual voltage and current elements
Exercise:
- Configure distance and overcurrent protection elements using acSELerator QuickSet
- Simulate faults and observe relay responses
- Testing Procedures:
- Secondary injection testing methods
- Using test sets for protection verification
- Commissioning Checklist:
- Verifying wiring and connections
- Checking protection settings
- Ensuring proper communication
- Troubleshooting:
- Analyzing event reports and fault records
- Identifying and resolving common issues
- Using diagnostic tools for fault analysis
Exercise:
- Perform secondary injection tests using a simulated test set
- Analyze event reports to identify and troubleshoot issues
