Siemens 7SJ85 - Settings; Information List; Pulse-Pattern Detection Stage; Description

Parameter: Pickup delay
•
Default setting (_:103) Pickup delay = 0.00 s
With the parameter Pickup delay, you set whether pickup of the stage is to be delayed or not. If the tran-
sient cycle of the ground fault occurrence should not be evaluated, set a delay of 100 ms, for example.
Parameter: Operate delay
•
Default setting (_:6) Operate delay = 0.30 s
The Operate delay parameter determines the time during which the pickup conditions must be met to
issue the operate indication. The operate indication is issued when this time expires.
Settings
Addr. Parameter C Setting Options Default Setting
Y0> #
_:1 Y0> #:Mode
•
off
•
on
•
test
off
_:2 Y0> #:Operate & flt.rec.
blocked
•
no
•
yes
no
_:10 Y0> #:Blk. by meas.-volt.
failure
•
no
•
yes
yes
_:27 Y0> #:Blk. w. inrush curr.
detect.
•
no
•
yes
no
_:101 Y0> #:V0> threshold
value
0.300 V to 200.000 V 5.000 V
_:102 Y0> #:Threshold Y0> 0.10 mS to 100.00 mS 2.00 mS
_:103 Y0> #:Pickup delay 0.00 s to 60.00 s 0.00 s
_:6 Y0> #:Operate delay 0.00 s to 60.00 s 0.30 s
Information List
No.
Information Data Class
(Type)
Type
Y0> #
_:81 Y0> #:>Block stage SPS I
_:501 Y0> #:>Block delay & op. SPS I
_:54 Y0> #:Inactive SPS O
_:52 Y0> #:Behavior ENS O
_:53 Y0> #:Health ENS O
_:60 Y0> #:Inrush blocks operate ACT O
_:55 Y0> #:Pickup ACD O
_:56 Y0> #:Operate delay expired ACT O
_:57 Y0> #:Operate ACT O
Pulse-Pattern Detection Stage
Description
Overview
The Pulse-pattern detection stage detects a faulty feeder during a permanent ground fault in overcompen-
sated systems. This method is not reliably applicable to undercompensated systems.
6.15.12.3
6.15.12.4
6.15.13
6.15.13.1
Protection and Automation Functions
6.15 Sensitive Ground-Fault Detection
SIPROTEC 5, Overcurrent Protection, Manual 619
C53000-G5040-C017-8, Edition 07.2017