Relay Test Set

The Motwane RTS Series, often referred to as the Secondary Current Injection Kit, is a handy and budget-friendly tool designed for testing protective relays that operate on both voltage and current. Crafted with precision and user-friendliness in mind, it ensures reliable performance for testing relays and protection systems.

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A secondary current injection kit offers a safe, accurate, and cost-effective way to test relay logic and settings without using high currents. It is portable, easy to use, and supports testing of various relays, ensuring reliable operation of the protection scheme before primary injection testing.
The high-burden capability of a secondary current injection kit is crucial for testing electromechanical relays, which require sufficient power to operate their coils and trip mechanisms. Without adequate burden, the relay may not function correctly, resulting in inaccurate test results. A high-burden kit ensures realistic testing conditions and reliable verification of relay performance.
Secondary and primary current injection tests are two distinct methods for validating a protective relay system, each with a different scope. A secondary injection test is a component-level test that verifies the relay’s logic by injecting low current directly into its terminals, but it does not test the current transformers (CTs) or their wiring. In contrast, a primary injection test is an end-to-end system test that applies high-magnitude current to simulate a fault, verifying the entire current path, including CTs, wiring, and the breaker’s trip mechanism.