MI 2883 Energy Master
Operating the instrument
43
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.
Conducto
rs
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 active power was maximal.
Table 3.21: 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.
METER
Switches to METER view.
TREND
Switches to TREND view.
EFF
Switches to EFFICIENCY view.
Returns to the “MEASUREMENTS” submenu.
F1
F2
F3
F4
