Page 130 - intelligent encyclopedia ( equipment issue 1 )

intelligent
TRANSFORMERS

Consist of:

,Q WKH ÀUVW PXVW NQRZ WKH WUDQVIRUPHU GHVLJQHG WR ´VWHS XS WUDQVIRUPHUµ RU ´VWHS GRZQ
WUDQVIRUPHUµ
,W·V FRQVLVWLQJ RI VLPSOHVW IRUP RI WZR RU PRUH FRLOV RI LQVXODWHG ZLUH ZRXQG RQ D ODPLQDW-
ed steel core.

Primary coil:

LWV LQVXODWHG FXSSHU FRLO FRQQHFWHG WR JHQHUDWLRQ VRXUFH

Secondary coil:

its insulated copper coil connected to electrical loads

Iron core:
0DGH RI VLOLFRQ ZURXJKW LURQ LQ WKH IRUP RI WKLQ VWULSV LVR-
lated from each other to reduce the eddy currents.

We can say:
:KHQ YROWDJH LV LQWURGXFHG WR RQH FRLO FDOOHG WKH SULPDU\
LW PDJQHWL]HV WKH LURQ FRUH $ YROWDJH LV WKHQ LQGXFHG LQ WKH
RWKHU FRLO FDOOHG WKH VHFRQGDU\ RU RXWSXW FRLO 7KH FKDQJH RI
YROWDJH RU YROWDJH UDWLR EHWZHHQ WKH SULPDU\ DQG VHFRQGDU\
GHSHQGV RQ WKH WXUQV UDWLR RI WKH WZR FRLOV

We Can Say

:KHQ YROWDJH LV LQWUR-
GXFHG WR RQH FRLO FDOOHG
WKH SULPDU\ LW PDJQHWL]HV
WKH LURQ FRUH $ YROWDJH LV
then induced in the other
FRLO FDOOHG WKH VHFRQGDU\
RU RXWSXW FRLO 7KH FKDQJH
RI YROWDJH RU YROWDJH UDWLR
EHWZHHQ WKH SULPDU\ DQG
secondary depends on the
WXUQV UDWLR RI WKH WZR FRLOV

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