Settings
Addr. Parameter C Setting Options Default Setting
Stage Δφ 1
_:19261:1 Stage Δφ 1:Mode
•
off
•
on
•
test
off
_:19261:2 Stage Δφ 1:Operate &
flt.rec. blocked
•
no
•
yes
no
_:19261:101 Stage Δφ 1:Threshold
Δφ
2.0° to 30.0° 10.0°
_:19261:6 Stage Δφ 1:Operate
delay
0.00 s to 60.00 s 0.00 s
_:19261:7 Stage Δφ 1:T Reset 0.00 s to 60.00 s 5.00 s
Information List
No. Information Data Class
(Type)
Type
Stage Δφ 1
_:19261:81 Stage Δφ 1:>Block stage SPS I
_:19261:54 Stage Δφ 1:Inactive SPS O
_:19261:52 Stage Δφ 1:Behavior ENS O
_:19261:53 Stage Δφ 1:Health ENS O
_:19261:55 Stage Δφ 1:Pickup ACD O
_:19261:56 Stage Δφ 1:Operate delay expired ACT O
_:19261:57 Stage Δφ 1:Operate ACT O
I1 < Release Stage
Description
Logic
[lo_UndercurrentRelease_Stage, 1, en_US]
Figure 6-227 Logic Diagram of the I1 < Release Stage
The I1 < Release stage is an optional stage and is used to reduce the risk of overfunction.
The indication
Undercurrent release
is an additional safety criterion to avoid an unexpected trip. It indi-
cates a load loss of the connected line to the system and the phase-angle criterion is released. If any load in
the network is switched on or off, an unexpected trip can occur.
If the I1 < Release stage is not instantiated, the Δφ stage works without current-flow criterion. You can find
more information in chapter 6.36.4.1 Description.
If the positive-sequence current falls below the parameter I< Threshold, the message
Undercurrent
release
is issued and is forwarded to the Δφ stage.
6.36.4.3
6.36.4.4
6.36.5
6.36.5.1
Protection and Automation Functions
6.36 Vector-Jump Protection
SIPROTEC 5, Overcurrent Protection, Manual 797
C53000-G5040-C017-8, Edition 07.2017
To Next Page
Loading...
