Page 123 - Practical Power System and Protective Relays Commissioning
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Traditional and Electronic Current Transformers Theory Testing Chapter | 10  121





























             FIGURE 10.19 Current transformer burden test.


             10.9.2.7 Continuity of Secondary Circuits
             The test should including checking of terminations, shorting links by the pri-
             mary and secondary injection test.


             10.9.2.8 High Voltage Test
             This which is undertaken during the high-voltage test at the final stages of
             commissioning tests, but with disconnecting the CT connections to the relays
             and shorting the transformer secondaries during the high-voltage test.



             10.9.2.9 Demagnetizing the CT Cores
             Demagnetizing the CT cores by connecting the transformer’s secondaries to
             the ground at the end of all tests.
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