IM30-GLF
Doc. N° MO-0062-ING
Rev.
3
Date
14.02.2005
Copyright 2010 - Microener
Firmware:
2.0X
Pag
17
of
31
10. READING OF MEASUREMENTS AND RECORDED PARAMETERS
Enter the MODE "MEASURE", SELECT the menus "ACT.MEAS"-"MAX VAL"-"LASTTRIP"-
-"TRIP NUM", scroll available information by key "+" or "-" .
10.1 - ACT.MEAS
Actual values as measured during the normal operation.
The values displayed are continuously refreshed.
Display
Description
IA
xxxxx
A
True R.M.S. value of the current of phase A displayed as primary Amps. (0 - 99999)
IB
xxxxx
A
As above, phase B
IC
xxxxx
A
As above, phase C.
Io
xxxxx
A
As above, earth fault current
Us
xxxxx
%
R.M.S. voltage as % of rated VTs secondary
I2
xxx
%Ib
R.M.S. Negative sequence current as % of basic setting Ib
xxxxx
°
Symmetric phase displacement (I
E).
N.B:If no key is operated within 60 sec. the display is automatically switched to the default indication
(
IAxxxxxA)
10.2 - MAX VAL
Maximum demand values recorded starting from 100ms after closing of main Circuit Breaker plus
highest inrush values recorded within the first 100ms from Breaker closing, (updated any time the
breaker closes).
Display
Description
IA
xxxx
In
Max. value of phase A current after the first 100ms, displayed as p.u. of C.Ts rated current
IB
xxxx
In
As above, phase B
IC
xxxx
In
As above, phase C.
Io
xxxx
On
As above, earth fault current
I2
xxx
%Ib
As above, negative sequence current
Us
xxxx
%
Max. val. of input voltage after the first 100ms, as % of rated input.
SA
xxxx
In
Max. current of phase A during the first 100ms.
SB
xxxx
In
As above, phase B.
SC
xxxx
In
As above, phase C.
So
xxxx
On
As above, earth fault current.
SU
xxxx
%
Max. input voltage during the first 100ms
