[7sj6x_frequenzschutz-070906-he, 1, en_US]
Figure 2-65
Logic diagram of the frequency protection
Setting Notes
General
Frequency protection is only in effect and accessible if address 154
81 O/U
is set to
Enabled
during configu-
ration of protective functions. If the function is not required
Disabled
is set. The function can be turned
ON
or
OFF
under address 5401
FCT 81 O/U
.
By setting the parameters 5421 to 5424, the function of each of the elements
81-1 PICKUP
to
81-4
PICKUP
is set individually as overfrequency or underfrequency protection or set to
OFF
, if the element is not
required.
Minimum Voltage
Address 5402
Vmin
is used to set the minimum voltage. Frequency protection is blocked as soon as the
minimum voltage is undershot.
2.9.2
Functions
2.9 Frequency Protection 81 O/U
164
SIPROTEC 4, 7SJ62/64, Manual
C53000-G1140-C207-8, Edition 08.2016
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