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Primary and Secondary Current Injector

Primary and Secondary Current Injectors for Sale 

This powerful test system is designed for primary injection testing of protective relay equipment and circuit breakers. It is also used to test the turns ratio of current transformers and for other applications that require high variable currents.

For any electrical system the testing of circuit protection devices is critical to ensure safety and security. Primary and secondary current injection are two approaches when testing circuit breakers. Primary current injection testing involves injecting the actual current required to operate the protective device through the circuit breaker.    

Also check our Three & Single Phase Relay Testers!


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