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PM 1001484 000 06
Device handbook SINEAX DM5000
64/87
Annex
A Description of measured quantities
Used abbreviations
1L
Single phase system
2L
Split phase; system with 2 phases and center tap
3Lb
3-wire system with balanced load
3Lb.P
3-wire system with balanced load, phase shift (only 2 voltages connected)
3Lu
3-wire system with unbalanced load
3Lu.A
3-wire system with unbalanced load, Aron connection (only 2 currents connected)
4Lb
4-wire system with balanced load
4Lu
4-wire system with unbalanced load
4Lu.O
4-wire system with unbalanced load, Open-Y (reduced voltage connection)
A1 Basic measurements
The basic measured quantities are calculated each 200ms by determining an average over 10 cycles at 50Hz resp.
12 cycles at 60Hz. If a measurement is available depends on the selected system.
Depending on the measured quantity also minimum and maximum values are determined and non-volatile stored with
timestamp. These values may be reset by the user via display, see
Measurement
pr
es
ent
m
ax
m
in
1L
2L
3Lb
3Lb.
P
3Lu
3Lu.
A
4Lb
4Lu.
O
4Lu
Voltage U
● ● ● √
√
√
√
Voltage U
1N
● ● ●
√
√
√
Voltage U
2N
● ● ●
√
√
√
Voltage U
3N
● ● ●
√
√
Voltage U
12
● ● ●
√
√
√
√
√
Voltage U
23
● ● ●
√
√
√
√
√
Voltage U
31
● ● ●
√
√
√
√
√
Zero displacement voltage U
NE
● ●
√
√
√
√
√
Current I
● ●
√
√
√
√
Current I1
● ●
√
√
√
√
√
Current I2
● ●
√
√
√
√
√
Current I3
● ●
√
√
√
√
Neutral current I
N
● ●
√
√
√
√
√
Earth current I
PE
(calculated)
● ●
√
√
Active power P
● ●
√
√
√
√
√
√
√
√
√
Active power P1
● ●
√
√
√
Active power P2
● ●
√
√
√
Active power P3
● ●
√
√
Fundamental active power P(H1)
● ●
√
√
√
√
√
√
√
√
√
Fundamental active power P1(H1)
● ●
√
√
√
Fundamental active power P2(H1)
● ●
√
√
√
Fundamental active power P3(H1)
● ●
√
√
Total reactive power Q
● ●
√
√
√
√
√
√
√
√
√
Total reactive power Q1
● ●
√
√
√
Total reactive power Q2
● ●
√
√
√
Total reactive power Q3
● ●
√
√
Distortion reactive power D
● ●
√
√
√
√
√
√
√
√
√
Distortion reactive power D1
● ●
√
√
√
Distortion reactive power D2
● ●
√
√
√
Distortion reactive power D3
● ●
√
√
Fundamental reactive power Q(H1)
● ●
√
√
√
√
√
√
√
√
√
Fundamental reactive power Q1(H1)
● ●
√
√
√
Fundamental reactive power Q2(H1)
● ●
√
√
√
Fundamental reactive power Q3(H1)
● ●
√
√