Focus
- Fault analysis
- Relay settings
- System reliability
Tools used
- GE
- Siemens
- ABB / Hitachi
- Schneider Electric
- Engineering configuration tools
Key objectives
Analyze power system behavior
Evaluate protection schemes
Detect and assess fault conditions
Configure and optimize relay settings
Approach
- 01
Review system configuration and protection philosophy
- 02
Evaluate selectivity, sensitivity and coordination
- 03
Calculate pickup values and time delays
- 04
Prepare relay configuration files and backups
- 05
Verify operation with secondary injection and trip tests
Project objective
The objective of this work is to assess and improve a protection system by combining system analysis, fault evaluation and relay configuration. The consulting focus is selectivity, sensitivity and coordination between relays.
This type of consulting supports safer power system operation, reduced fault impact and downtime, compliance with protection standards, and reliable, optimized protection performance.
Protection functions evaluated
- Overcurrent protection
- Differential protection
- Distance protection
- Line differential protection
- Busbar protection
- Generator protection
Relay settings and configuration
Activities performed:
- Calculation of relay settings (pickup, time delays)
- Configuration of protection functions
- Adjustment of coordination margins
- Preparing relay configuration files
- Parameter setting in relay software
- Managing relay setting files and backups
- Supporting relay commissioning and updates
Vendors and platforms used include GE, Siemens, ABB/Hitachi and Schneider Electric, together with the corresponding engineering configuration tools.
Testing and verification
The goal of testing is to ensure correct relay operation before commissioning.
- Secondary injection testing
- Functional verification of protection logic
- Trip signal verification