For primary injection testing, high current is injected on the primary side of the current transformer. The entire chain—current transformer, conductors, connection points, relay protection and sometimes circuit breakers as well—is covered by the test. The system being tested must be taken out of service during primary injection testing, usually conducted in connection with commissioning.
Primary Injection Testing
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ODEN AT™ Primary Current Injection Test System
For primary injection testing of protective relay equipment and circuit breakers.
