MCCB-250 USER’S MANUAL
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3.2 Measuring Current Transformer Primary and Secondary Currents
Figure 4 shows a typical connection of the MCCB-250 to a current transformer. In this
configuration, the MCCB-250 injects a test current through the CT primary. The CT secondary
current is sensed by the MCCB-250’s
[EXT CURRENT]
input.
Figure 4. Typical Current Transformer Current Ratio Test Connections
