Application Examples - ABB RET 541 Product Manual

Application
examples
Transformer Terminal
Q
Q
Fig. 6 Protection, control and supervision functions of a Yd-connected power transformer, implemented
with RET 543 transformer terminal, REF543 feeder terminal and REA 101 arc protection. Position
indication of the on-load tap changer is used to increase the sensitivity of the differential function of
the transformer. In this example, the voltage controller is not included in the RET 543 transformer
terminal.
RET 541, RET 543, RET 545
D
1MRS755543
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