Protective Relay Testing

Evaluate protection system performance

Protective relays play a central role in electrical system protection. Testing evaluates relay operation and helps identify issues with settings, functionality and coordination within the system.

Services across the equipment lifecycle

• Acceptance testing: assess new relays before installation or service
• Commissioning: verify relay and functional operation using the intended settings
• Preventive maintenance: check operation at planned intervals and document findings
• End-to-end testing: evaluate the protection scheme, communications and associated breaker operation

Relay test scope

• Insulation resistance
• Zero checks and pickup testing
• Time characteristics, where applicable
• Target and seal-in operation
• Application-specific checks such as reach, dropout and through-fault performance

Documentation for future maintenance

Test records provide a reference for subsequent inspections and troubleshooting. Contact us with your relay types and system requirements to discuss the appropriate scope.