Seg HighTECH MRG3 - Erasure of Fault Storage

Manual MRG3 SEG Electronics GmbH
DOK-TD-MRG3, Rev. D 59
Recorded fault data:
Measuring
Displayed value
Corresponding LED
Voltage
U_L1
U_L2
U_L3 in star connection
U_L1/L2
U_L2/L3
U_L3/L1 in delta connection
U + L1
U + L2
U + L3
U + L1 + L2
U + L2 + L3
U + L3 + L1
Frequency
f
f min
f max
f
f + min
f + max
Vector surge
_L1(L1/L2)
_L2(L2/L3)
_L3(L3/L1)
/df + L1
/df + L2
/df + L3
Frequency changing rate
df
/df
Phase current
I_L1
I_L2
I_L3
I + L1
I + L2
I + L3
Expired tripping time in % of tI>
tI>%
I + 1 + > + t>
Residual voltage
U
0
U + E
Earth current
Earth current active portion
Earth current reactive portion
I
E
I
E
_E
P
I
E
_E
Q
I
E
I
E
+ E
P
I
E
+ E
Q
Expired tripping time in % of tI
E
>
tI
E
>%
E + 1 + > + t>
Circuit breaker failure protection
tCBFP
CB + t>
Time stamp
Date:
Y = 99
M = 03
D = 10



Time:
h = 17
m = 21
s = 14
Table 5.7: Fault data indications on display
Note:
It is only possible to call up those measuring values whose function was implemented in the re-
spective de-vice version.
5.10.8 Erasure of fault storage
To delete stored fault records, the push button combination <SELECT/RESET> and <->, has to be
pressed for about 3s. The display shows “wait”.