INTORQ BFK458-06***25, Руководство по эксплуатации

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Technical specifications
INTORQ | BA 14.0168 | 09/2015 24
4.4 Switching energy / switching frequency
Fig. 5 Switching energy as a function of the switching frequency
The permissible switching frequency S
hmax
depends on the amount of heat Q
R
(refer to Figure 5). At a pre-
set switching frequency S
h
, the permissible amount of heat is Q
Smax
.
NOTICE
With high speeds of rotation and switching energy, the wear increases strongly, because very
high temperatures occur at the friction surfaces for a short time.
Sizes
Switching frequency S
h
[h
-1
]
Swi
tching energy Q [J]
Shmax
Shue
–
ln 1
QR
QE
---------
–
 
 
 
-------------------------------- =
Qsmax QE 1 e
Shue
–
Sh
-------------------
–
 
 
 
 
 
 
=