Siemens SIPROTEC 7SJ62, Руководство пользователя

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Technical Data
4.25 Additional Functions
SIPROTEC, 7SJ62/64, Manual
C53000-G1140-C207-2, Release date 01.2008 533
1)
at nominal frequency
Long-Term Averages
Min / Max Report
Fuse Failure Monitor
Currents of sensitive ground fault de-
tection (total, real, and reactive cur-
rent)
I
Ns
, I
Ns real
; I
Ns reactive
in A (kA) primary and in mA secondary
Range
tolerance
1)
0 mA to 1600 mA
2 % of measured value or 1 mA
Phase angle between zero sequence
voltage and sensitive ground current
ϕ
(3V0,
I
Ns
)
in °
Range
tolerance
1)
- 180° to + 180°
±
1°
RTD-box See section (Temperature Detection via RTD Boxes)
Synchronization Function 25 See section (Synchronization Function 25)
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
Operating Modes - in grounded systems
- in resonant-grounded/isolated systems
only for connection of phase-to-ground voltages
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