Siemens 7SC80 Manual page 573

Siprotec compact feeder protection and recloser controller
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1)
for nominal frequency
2)
Display of cos φ starting from Ι/Ι
Long-Term Mean Values
Time Window
Frequency of Updates
Long-Term Averages
Min./Max. Memory
Storage of Measured Values
Reset automatic
Manual Reset
Min/Max Values for Current
Min/Max Values for Voltages
Min/Max Values for Power
Min/Max Values for Overload Protection
Min/Max Values for Mean Values
Local Measured Value Monitoring
Current symmetry
Voltage symmetry
Current sum
Current phase sequence
Voltage phase sequence
Fault Logging
Recording of indications of the last 8 power system faults
Recording of indications of the last 3 ground faults
SIPROTEC Compact, 7SC80, Manual
E50417-G1140-C486-A8, Edition 07.2017
and V/V
Nom
Nom
of Currents
of Real Power
of Reactive Power
of Apparent Power
greater than 10 %
5, 15, 30 or 60 minutes
adjustable
; Ι
; Ι
; Ι
in A (kA)
Ι
Admd
Bdmd
Cdmd
1dmd
P
in W (kW, MW)
dmd
Q
in VAr (kVAr, MVAr)
dmd
S
in VAr (kVAr, MVAr)
dmd
with date and time
Time of day adjustable (in minutes, 0 to 1439 min) Time
frame and starting time adjustable (in days, 1 to 365 days,
and ∞)
Using binary input
Using keypad
Via communication
; Ι
; Ι
;
Ι
A
B
C
(positive sequence component)
Ι
1
V
; V
; V
;
A-N
B-N
C-N
V
(positive sequence component);
1
V
; V
; V
A-B
B-C
C-A
S, P; Q, cos φ; frequency
Θ/Θ
tRIP
; Ι
; Ι
;
Ι
Admd
Bdmd
Cdmd
(positive sequence component);
Ι
1dmd
S
; P
; Q
dmd
dmd
dmd
> balance factor, for Ι > Ι
Ι
max
min
V
/V
> balance factor, for V > V
max
min
| i
+ i
+ i
+ k
· i
| > limit value, with
A
B
C
I
E
Clockwise/counter-clockwise phase sequence
Clockwise/counter-clockwise phase sequence
Technical Data
4.23 Additional Functions
limit
limit
573

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