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Relay Testing Service

Advanced Protection Coordination & Sensitivity

The Protection Relay is the “intelligence” of your substation, responsible for making split-second decisions to isolate faults and protect high-value assets. At GS Green Energy, we provide essential testing and calibration services that ensure your protective relays operate with optimum sensitivity, stability, and selectivity. As you plan for a new project or evaluate an existing system, our engineers work with the most popular software to develop accurate settings that meet your technical goals.

Our Specialized Relay Analytical Services Include:

  • Secondary Injection Testing: We utilize high-precision injection kits to verify the operating characteristics of overcurrent, distance, and differential relays against calculated settings.
  • Protection Scheme Verification: Our engineers perform time-domain analysis to ensure complex schemes—such as busbar protection and breaker failure—function as designed during abnormal operations.
  • Logic and Selectivity Checks: We calculate settings for identification of the most suitable thresholds, providing protection coordination to the plant equipment during various fault conditions.
  • Communication Path Testing: Verifying the signaling paths between relays and the SCADA system to ensure real-time fault reporting and data logging for incident investigation.