Technical Data
10-28 7SA522 Manual
C53000-G1176-C119-2
all U
Ph-E
< FFM U<max
AND
at the same time
all I
Ph
< (I
Ph
> (Dist.))
AND
all I
Ph
> 40 mA
– FFM U<max 2 V to 100 V (steps 1 V)
– FFM I
delta
0.05·A to 1.00·A
1)
(steps 0.01·A)
1
) Secondary values based on I
N
= 1 A; for I
N
= 5 A they must be multiplied with 5.
Trip Circuit Super-
vision
Operation with 1 binary input or with 2 binary inputs
Alarm delay 1 s to 30 s (steps 1 s)
10.17 Supplementary Functions
Measured Value
Processing
Operational measured values of currents I
L1
; I
L2
; I
L3
; I
4
in A primary and secondary and in % I
N
– Tolerance ≤ 1% of I
N
for I ≤ I
N
≤ 1% of measured value for I > I
N
Operational measured values of voltages U
L1–E
; U
L2–E
; U
L3–E
; U
X
in kV primary and V second. and % U
N
/√3
– Tolerance ≤ 1% of U
N
for U ≤ U
N
≤ 1% of measured value for U > U
N
Operational measured values of voltages U
L1–L2
; U
L2–L3
; U
L3–L1
in kV primary and V secondary and % U
N
– Tolerance ≤ 1% of U
N
for U ≤ U
N
≤ 1% of measured value for U > U
N
Operational measured values of power P; Q (active; reactive power)
in MW and Mvar primary and % S
N
(operational nominal power)
= √3
· U
N
· I
N
– Tolerance ≤ 2 % of S
N
Operational measured values of power
factor cos ϕ
– Tolerance 0.01
Operational measured values
of frequency
in Hz and % f
N
– Range 96 % to 104 % of f
N
– Tolerance 10 mHz or 0.2 %
Fault Event Data
Log
Storage of the messages of the last 8 faults
with a total of max. 200 individual messages
Fault Recording Number of stored fault records max. 8
Total storage period
(start with pick-up or trip) max. 15 s
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