Siemens 7SC80 - Page 573

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