Siemens SIPROTEC 7SJ61 User Manual

Technical Data
4.5 DynamiC Cold Load Pickup
SIPROTEC, 7SJ61, Manual
C53000-G1140-C210-1, Release date 02.2008
332
4.5 DynamiC Cold Load Pickup
Timed Changeover of Settings
Setting Ranges / Increments
Controlled Elements Time overcurrent protection elements (separate phase and ground set-
tings)
Initiation Criteria Current Criterion BkrClosed I MIN
Interrogation on the circuit breaker position
Automatic reclosing function ready
Binary Input
Timing 3 Time Delays
(T
CB Open
, T
Active
, T
Stop
)
Current Control Current threshold "BkrClosed I MIN"
(reset on current falling below threshold: monitoring with timer)
Current Control
„BkrClosed I MIN“
for I
Nom
= 1 A 0.04 A to 1.00 A Increments 0.01 A
for I
Nom
= 5 A 0.20 A to 5.00 A
Time Until Changeover To Dynamic
Settings T
CB OPEN
0 s to 21600 s (= 6 h) Increments 1 s
Period Dynamic Settings are Effective
After a Reclosure T
Active
1 s to 21600 s (= 6 h) Increments 1 s
Fast Reset Time T
Stop
1 s to 600 s (= 10 min) or ∞ (fast reset inactive) Increments 1 s
Dynamic Settings of Pickup Currents and
Time Delays or Time Multipliers
Adjustable within the same ranges and with the same increments
as the directional and non-directional time overcurrent protection

Siemens SIPROTEC 7SJ61 Specifications

General

Brand	Siemens
Model	SIPROTEC 7SJ61
Category	Controller
Language	English