Relay Testing
Protective relays are the heart of electrical safety systems, responsible for detecting faults and triggering timely isolation of faulty circuits. SLPL offers expert Relay Testing services to verify accuracy, functionality, and coordination of protective relays—safeguarding your power systems from costly breakdowns and safety risks.
What is Relay Testing?
Relays are intelligent devices programmed to monitor parameters such as voltage, current, and frequency. When these parameters exceed set thresholds, relays operate circuit breakers to isolate the faulted section. Over time, relays may lose calibration, suffer wear in mechanical parts, or develop software glitches—requiring routine testing for assured performance.
SLPL’s Relay Testing services are designed to test and calibrate a wide range of protection relays, ensuring they perform their critical function within the desired time and accuracy range.
Key Testing Procedures
- Visual and Functional Checks
- Secondary Injection Testing
- Trip Timing Verification
- Relay Coordination Check
- Protection Scheme Validation
Benefits of Relay Testing
- Reliable Fault Isolation
- Reduced Nuisance Tripping
- Trip Timing Verification
- Downtime Reduction
- Personnel Safety