Transformer
6 - 19
Figure 11:
Simplified schematic of
a tap changer
It is recommended to perform all winding resistance measurements with the
CP SA1 connected to the CPC 100 VDC input sockets to protect yourself and
CPC 100 from high-voltage hazards. The CP SA1 must be used for
measurements using 400A DC output. Before using CP SA1, you can check its
functionality by following the test procedure in ”CP SA1” on page 17-14. If the
box is defective, contact OMICRON electronics sales office (for ordering
information, see ”Ordering Information for CP SA1” on page 17-14). Before
disconnecting the test leads, short-circuit the transformer’s terminals first and
then remove the wirings to CPC 100.
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