Dynamic Cold Load Pickup
Timed Changeover of Settings
Controlled functions
Directional and non-directional time overcurrent protection (separated
acc. to phases and ground)
Initiation criteria
Current Criteria "BkrClosed I MIN"
Interrogation of the circuit breaker position
Automatic reclosing function ready
3 time elements
Time control
3 time elements
(T
CB Open.
, T
Active
, T
Stop)
Current control
Current threshold "BkrClosed I MIN" (reset on current falling below
threshold: monitoring with timer)
Setting Ranges / Increments
Current Control
for
Ι
N
= 1 A
0,04 A to 1,00 A
Increments
0.01 A
for
Ι
N
= 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 Reclo-
sure 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
4.6
Technical Data
4.6 Dynamic Cold Load Pickup
SIPROTEC 4, 7SJ62/64, Manual
465
C53000-G1140-C207-8, Edition 08.2016
Summary of Contents for SIPROTEC 4
Page 8: ...8 SIPROTEC 4 7SJ62 64 Manual C53000 G1140 C207 8 Edition 08 2016 ...
Page 18: ...18 SIPROTEC 4 7SJ62 64 Manual C53000 G1140 C207 8 Edition 08 2016 ...
Page 30: ...30 SIPROTEC 4 7SJ62 64 Manual C53000 G1140 C207 8 Edition 08 2016 ...
Page 540: ...540 SIPROTEC 4 7SJ62 64 Manual C53000 G1140 C207 8 Edition 08 2016 ...
Page 594: ...594 SIPROTEC 4 7SJ62 64 Manual C53000 G1140 C207 8 Edition 08 2016 ...
Page 720: ...720 SIPROTEC 4 7SJ62 64 Manual C53000 G1140 C207 8 Edition 08 2016 ...