METREL MI 2893 User Manual

MI 2893 / MI 2892 / MI 2885 Energy
54
Sn avg
Sen avg
Phase nonfundamental apparent power (Sɴ1, Sɴ2, Sɴ3)
Total effective nonfundamental apparent power (Seɴ).
Shown nonfundamental apparent power is averaged over chosen time interval (key: F2)
 TOT – shows total average (for complete record) of nonfundamental apparent
power
 LAST – shows average nonfundamental apparent power in the last interval
 MAX – shows average nonfundamental apparent power in interval where Ep was
maximal.
Su
Fundamental unbalanced power, according to the IEEE 1459-2010
Ep+
Ep-
Consumed phase (Ep
1
+
, Ep
2
+
, Ep
3
+
) or total (Ep
tot
+
) active energy
Generated phase (Ep
1
-
, Ep
2
-
, Ep
3
-
) or total (Ep
tot
-
) active energy
Shown active energy depends on chosen time interval (key: F2)
 TOT – shows accumulated energy for complete record
 LAST – shows accumulated energy in last interval
 MAX – shows maximal accumulated energy in any interval
Eq+
Eq-
Consumed (+) phase (Eq
1
+
, Eq
2
+
, Eq
3
+
) or total (Eq
tot
+
) fundamental reactive energy
Generated (-) phase (Eq
1
-
, Eq
2
-
, Eq
3
-
) or total (Eq
tot
-
) fundamental reactive energy
Shown reactive energy depends on chosen time interval (key: F2)
 TOT – shows accumulated energy for complete record
 LAST – shows accumulated energy in last interval
 MAX – shows accumulated reactive energy in interval where Ep was maximal.
Conductors’
utilisation
Shows conductor cross section utilisation for chosen time interval (TOT/LAST/MAX):
 GREEN colour – represents part of conductor cross section (wire) used
for active energy transfer (Ep)
 RED colour – represents part of conductor cross section (wire) used for
fundamental reactive energy transfer (Eq)
 BLUE colour – represents part of conductor cross section (wire) used for
nonfundamental (harmonic) apparent energy transfer (Sɴ)
 BROWN colour – represents unbalanced power (S
U
) portion flowing in
polyphase system in respect to phase power flow.
Date
End time of shown interval.
Max. Power
Demand
Shows three intervals where measured fundamental active power was maximal.
According to the selected channel (key: F3), and VIEW (key: F1) consumed phase and
total fundamental active power is shown (Pfund
1
+
, Pfund
2
+
, Pfund
3
+
, P
+
tot
+
) or generated
phase and total fundamental active power is shown (Pfund
1
-
, Pfund
2
-
, Pfund
3
-
, P
+
tot
-
)
Table 22: Keys in Energy (TREND) screens
VIEW
Switches between Consumed (+) and Generated (-) energy view.
TOT LAST MAX
Shows parameters for complete record duration
TOT LAST MAX
Shows parameters for last (complete) recorded interval
TOT LAST MAX
Shows parameters for interval, where active energy was maximal
1 2 3  T
Shows energy records for phase L1.
1 2 3 T
Shows energy records for phase L2.
1 2 3  T
Shows energy records for phase L3.
1 2 3  T
Shows all phases energy records.
1 2 3  T
Shows energy records for Totals.
F1
F2
F3

METREL MI 2893 Specifications

General

Brand	METREL
Model	MI 2893
Category	Measuring Instruments
Language	English