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A-19
Micrologic A/E/P integrated Power Meter functions
Type
Display
A/E P Micrologic
LCD
FDM121
display
Display of protection settings
Pick-ups (A) and delays All settings can be displayed
Ir, tr, Isd, tsd, Ii, Ig, tg
A/E P
b
-
Measurements
Instantaneous rms measurements
Currents (A)
Phases and neutral
I1, I2, I3, IN
A/E P
b
b
Average of phases
Iavg = (I1 + I2 + I3) / 3
A/E P
-
b
Highest current of the 3 phases and neutral Imax of I1, I2, I3, IN
A/E P
b
b
Ground fault (Micrologic 6)
% Ig (pick-up setting)
A/E P
b
b
Current unbalance between phases
% Iavg
-
/E P
-
b
Voltages (V)
Phase-to-phase
V12, V23, V31
-
/E P
b
b
Phase-to-neutral
V1N, V2N, V3N
-
/E P
b
b
Average of phase-to-phase voltages
Vavg = (V12 + V23 + V31) / 3
-
/E P
-
b
Average of phase-to-neutral voltages
Vavg = (V1N + V2N + V3N) / 3
-
/E P
-
b
Ph-Ph and Ph-N voltage unbalance
% Vavg and % Vavg
-
/E P
-
b
Phase sequence
1-2-3, 1-3-2
- / -
P
b
b
Frequency (Hz)
Power system
f
- / -
P
b
b
Power
Active (kW)
P, total
-
/E P
b
b
P, per phase
-
/E P
b
(2)
b
Reactive (kVAR)
Q, total
-
/E P
b
b
Q, per phase
- / -
P
b
(2)
b
Apparent (kVA)
S, total
-
/E P
b
b
S, per phase
- / -
P
b
(2)
b
Power Factor
PF, total
-
/E P
b
b
PF, per phase
- / -
P
b
(2)
b
Cos
.
ϕ
Cos
.
ϕ
, total
- / -
P
b
(2)
b
Cos
.
ϕ
, per phase
- / -
P
b
(2)
b
Maximeters / minimeters
Associated with instantaneous rms
measurements
Reset via FDM121 display unit and
Micrologic keypad
A/E P
b
b
Energy metering
Energy
Active (kW), reactive (kVARh), apparent
(kVAh)
Total since last reset
-
/E P
b
b
Demand and maximum demand values
Demand current (A)
Phases and neutral
Present value on the selected window
-
/E P
b
b
Maximum demand since last reset
-
/E P
b
(2)
b
Demand power
Active (kWh), reactive (kVAR),
apparent (kVA)
Present value on the selected window
-
/E P
b
b
Maximum demand since last reset
-
/E P
b
(2)
b
Calculation window
Sliding, fixed or com-synchronised
Adjustable from 5 to 60 minutes in 1 minute
steps
(1)
-
/E P
-
-
(1)
Available via the communication system only.
(2)
Available for Micrologic P only.
PB104842_24
PB103360
PB106351A13