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Lumel ND20 - Page 44

Lumel ND20
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44
4005 RW 0..3
Synchronization of mean active
power:
0 – 15 minutes’ walking window
(record synchronized every 15
minutes with the clock)
1 – measurement synchronized
every 15 minutes with the clock
2 – measurement synchronized
every 30 minutes with the clock
3 – measurement synchronized
every 60minutes with the clock
0
4006 RW 0..22
Number of the measured
harmonic/ THD
0 – THD,
1 – all harmonics are succes-
sively measured and placed
in registers 7660-7780, 2...21
– harmonic number with energy.
0
4007 RW 0,1
Storage way of minimum and
maximum values
0 – without errors,
1 – with errors
0
4008 RW 0,1
Way to calculate reactive power:
0:
22
PSQ =
1:
( )
ii
k
i
ii
IUIUQ ,sin**
1
=
=
k – harmonic number,
k = 21 for 50 Hz,
k = 18 for 60 Hz
0
4009 RW 0,1
Way to calculate reactive energy:
0 – inductive and capacitive
energy
1 – positive and negative energy
0
4010 RW 0...61
Display backlit:
0 – disabled,
1-60 – backlit time in seconds
since the push-button pressure,
61 – always enabled
61

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