[fosteig2-170712-01.tif, 1, en_US]
•
Recommended setting value (_:105) Slope = 0.04
Protection of a Shunt Reactor
[dwanquer-170712-01.tif, 1, en_US]
Figure 6-282 Application with Neutral Reactor
As side rated value, the following results:
10 MVA/(√3 · 132 kV) = 43.7 A
You can thus define the lower limit for the threshold value:
[foschwe6-170712-01.tif, 1, en_US]
Select 0.35 I/Irated,S as threshold value.
•
Recommended setting value (_:103) Threshold = 0.35 I/Irated,S
For the shunt reactor, there is no external fault that can lead to overfunction. Siemens recommends a
minimum rise (0.05).
•
Recommended setting value (_:105) Slope = 0.05
Settings
Addr.
Parameter C Setting Options Default Setting
87N REF #
_:1 87N REF #:Mode
•
off
•
on
•
test
off
_:2 87N REF #:Operate & flt.rec.
blocked
•
no
•
yes
no
6.43.5
Protection and Automation Functions
6.43 Restricted Ground-Fault Protection
878 SIPROTEC 5, Overcurrent Protection, Manual
C53000-G5040-C017-8, Edition 07.2017
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