48
PFo=
Po
x 100%
√
3Vo
•
Io
PFi=
Pi
x 100%
√
3Vi
•
Ii
The result for measuring primary and secondary voltage and current will be somewhat differ-
ent because of the variety of measuring instruments and harmonics generated by inverter.
Refer to the following illustration for measurement.
0($685(0(17
7(67,1*32,176
7(67(5
5(0$5.6
,QSXWYROWDJH
9L
999
0RYLQJLURQW\SH
,QSXWFXUUHQW
OL
$$$
0RYLQJLURQW\SH
,QSXWSRZHU
3L
::
(OHFWURG\QDPRPHWHU
3L ::
,QSXWSRZHUIDFWRU
3)L
2XWSXWYROWDJH
9R
999
5HFWLILHUW\SH
RIPD[LPXPRXWSXWYROWDJH
2XWSXWFXUUHQW
,R
$$$
0RYLQJLURQW\SH
&XUUHQWVKRXOGEHXQGHULQYHUWHUUDWHG
FXUUHQW
2XWSXWSRZHU
3R
::
(OHFWURG\QDPRPHWHU
3R ::
2XWSXWSRZHUIDFWRU
3)R
4.3
Voltage and Current Measurement
Содержание Crane Commander CCES102
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Страница 20: ...18 Dimensions and installation of class B filter Models CCES215 CCES222 CCES407 CCES415 CCES422...