Rockwell Automation 865 Differential Protection Relay - Manual (Page 154)

8-12 Applications
865-UM001A-EN-P – July 2009
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Figure 8.6 – Typical differential protection of a Dyn11 transformer using Allen-Bradley 865 Relay
(Primary and Secondary Current Transformers connected according to Additive Polarity)
Settings:
ConnGrp Dy11
IoCmps OFF
I’oCmps ON
Un
High side voltage
U’n Low side voltage