October 2020
Intermediate to advanced
450 pages
15h 32m
English
Content preview from Electrotechnical Systems
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262 Electrotechnical Systems
Instead of resistances and inductances, the reactances in pu and the time con-
stants are entered. SM reactances are determined as the product of the correspond-
ing inductances by the synchronous frequency ω
e
divided by the base resistance and
are denoted as X with corresponding indexes. SM is characterized by the following
reactances:
The d-axis synchronous reactance X
d
= X
ls
+ X
md
, the transient reactance
′
=+ +
XXXX
XX
dlsmd lfd md lfd
/( )
(5.79)
the subtransient reactance
′′
=+ ++
XXXXXXXXXXX
dlsmd lfd lkdmd lfd lfd lkdmdlkd
/( )
(5.80)
the q-axis synchronous reactance
XXX
ql
sm
q
=+
(5.81)
FIGURE 5.89 SM standard dialog box. ...
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