Siemens SIPROTEC 7SK80 - Page 391

Technical Data
4.20 Additional Functions
SIPROTEC, 7SK80, Manual
E50417-G1140-C344-A4, Release date 08.2010
391
1)
at nominal frequency
2)
Display of cos ϕ above I/I
Nom
and V/V
Nom
greater than 10%
Long-Term Averages
Min / Max Report
Range
Tolerance
1)
0 mA to 1600 mA
or 0 A to 8 A for I
Nom
= 5 A
3 % of measured value or 1 mA
Temperature
Restart inhibit
Θ
L
/Θ
L Trip
in %.
Range
Tolerance
1)
0 % to 400 %
5% class accuracy per IEC 60255-8
Restart threshold
Θ
Restart
/Θ
L Trip
in %.
Inhibit time T
Reclose
in min
Phase angle between zero sequence voltage
and sensitive ground current ϕ (3V0, INs)
in °
Range
Tolerance
1)
- 180° to + 180°
± 1°
RTD box See section (Temperature Detection via RTD Boxes)
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
I
Admd
; I
Bdmd
; I
Cdmd
; I
1dmd
in A (kA)
P
dmd
in W (kW, MW)
Q
dmd
in VAr (kVAr, MVAr)
S
dmd
in VAr (kVAr, MVAr)
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 I
A
; I
B
; I
C
;
I
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 I
Admd
; I
Bdmd
; I
Cdmd
;
I
1
(positive sequence component);
S
dmd
; P
dmd
; Q
dmd