MI 2883 Energy Master
Operating the instrument
41
Table 3.19: Keys in Energy (TREND) screens
Ep+
Eq+ Ep- Eq-
Shows active consumed energy for time interval (IP)
selected by cursor.
Ep+
Eq+
Ep- Eq-
Shows reactive consumed energy for time interval (IP)
selected by cursor.
Ep+ Eq+
Ep-
Eq-
Shows active generated energy for time interval (IP)
selected by cursor.
Ep+ Eq+ Ep-
Eq-
Shows reactive generated energy for time interval (IP)
selected by cursor.
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.
METER
Switches to METER view.
TREND
Switches to TREND view.
EFF
Switches to EFFICIENCY view.
Returns
to the “MEASUREMENTS” submenu.
3.7.3 Efficiency
EFFICIENCY view is available only during active
recording
(see section 3.14 for
instructions how to start GENERAL RECORDER).
Figure 3.29: Energy efficiency screen
Table 3.20: Instrument screen symbols and abbreviations
P avg+
P+ avg+
P avg-
P+ avg-
Consumed phase fundamental active power (
Pfund
1
+
, Pfund
2
+
, Pfund
3
+
)
Positive sequence of total fundamental consumed active power (P
+
tot
+
)
Generated phase fundamental active power (
Pfund
1
-
, Pfund
2
-
, Pfund
3
-
)
Positive sequence of total fundamental generated active power (
P
+
tot
-
)
Shown active power is averaged over chosen time interval (key: F2)
TOT
– shows total average (for complete record) active power
LAST
– shows average active power in the last interval
MAX - shows average active power in interval where
Ep
was
F2
F3
F4
