hager hw+ - Measurement functions; 6.1 Overview of measurements

78 6LE008146B
Measurement functions
6.1 Overview of measurements
The sentinel Energy trip unit is used to measure the following types of values:
Measurements in real-time
sentinel
Energy
display
Panel
display
Hager
Power
touch
Voltages
phase-phase U12, U23, U31
■ ■ ■
phase-neutral V1N, V2N, V3N
■ ■ ■
Ph-Ph arithmetic mean Uavg = (U12 + U21 + U23) / 3
■ ■ ■
Ph-N arithmetic mean Vavg = (V1N + V2N + V3N) / 3
■ ■ ■
Instantaneous maximum Voltages Ph-Ph and Ph-N - - -
Instantaneous minimum Voltages Ph-Ph and Ph-N - - -
Unbalances Ph-Ph and Ph-N (1) % Uavg and % Vavg
■ ■ ■
Max. instant. unbalance (1) Unba, Vnba -
■
-
Phase sequence 1-2-3, 1-3-2
■ ■ ■
(1) The availability of these measurements depends on the type of rating plug installed.
Currents
Phase and neutral I1, I2, I3, IN
■ ■ ■
Arithmetic mean Iavg = (I1 + I2 + I3)/3 -
■ ■
Instantaneous maximum Imax of I1, I2, I3, IN -
■ ■
Instantaneous minimum Imin of I1, I2, I3 -
■
-
Earth fault IG
■ ■ ■
Unbalance per phase Inba1, Inba2, Inba3
■ ■ ■
Neutral unbalance InbaN -
■ ■
Max. instant. unbalance Inba
■
- -
Frequency
Frequency f
■ ■ ■
Quadrant
I, II, II, IV
■ ■ ■
Rotary field
direct, inverse
■ ■ ■
Power
Active P total per phase
■ ■ ■
Reactive Q total per phase
■ ■ ■
Apparent S total per phase
■ ■ ■
Energy
Total active energy imported/
exported (consumed/produced)
EaIn / EaOut
■ ■ ■
Total reactive energy imported/
exported (consumed/produced)
ErIn / ErOut
■ ■ ■
Total active energy imported/
exported (consumed/produced)
(partial counter)
EaIn part / EaOut part
■ ■ ■
Total apparent energy Es
■ ■ ■
Total net active energy Ea net - - -
Total net reactive energy Er net - - -
Absolute value of the total net
active energy
Ea
- - -
Absolute value of the total net
reactive energy
Er
- - -
Maximum and minimum values since last reset