Download Enerium 50-150 operating manual

25.10 Peak factor
25.11 Tan(ϕ
ϕ)
The measurements are performed from the “10-period’’
active power measurements for a network frequency
parametered at 50Hz and “12-period’’ for a network
frequency parametered at 60Hz. The formulas are:
The product measures the global “at the second’’ Tan(φ) .
25.10.1 For the voltages
5
FC VL[ 1 s ]= 1 ×∑ FC VL[ 10 T ] (For F=50Hz) or
5 1
5
FC VL[ 1 s ]= 1 ×∑ FC VL[ 12 T ] (For F=60Hz)
5 1
with FC [10 T ] = Vpeak [10 T ]
VL
tg(ϕg )[1s] =
Q[1s]
P[1s]
25.12 Frequency
The
measurements
are
performed
from
the
measurements of “10-period’’ active powers for a network
frequency parametered at 50Hz and “12-period’’ for a
network frequency parametered at 60Hz. The formulas
ares:
V [10 T ]
and FC [12 T ] = Vpeak [12 T ]
VL
V [12 T ]
with V [10 T ] =
The quadrant is associated with each of these variables.
If P[1s] and Q[1s] (three-phase variable) are of the same
sign, then the quadrant is selfic, otherwise it is capacitive.
1280
1
× ∑ v L2
1280
1
10T
F[1s]=F_sampling x
Nbr_Samples_on_10T
1536
1
× ∑ v L2
1536
1
and V [12 T ] =
With the following functional relationship: F_sampling =
128 * F[1s]
with Vpeak [10T ] = max[ abs ( v L )]
and Vpeak [12 T ] = max[ abs ( v L )]
25.13 Harmonics
L = 1, 2, 3
25.10.2 For the currents
5
FC IL[1 s ]= 1 ×∑ FC IL[10 T ] (For F=50Hz)
5 1
OR FC [1s ] = 1 ×
IL
5
5
∑ FC
IL
[12 T ] (For F=60Hz)
The products measure the harmonic rate Hx "at the
second", range by range, on the three ground voltages V1,
V2, V3, on the three line voltages U12, U23, U31 and on the
three currents I1, I2, I3, in compliance with the CEI 610004-7 standard (edition 2). The measurements are
performed from the harmonics hx[10T], according to the
formula :
1
with FC [10 T ] = Ipeak [10 T ]
IL
I [10 T ]
and FC [12 T ] = Ipeak [12 T ]
IL
I [12 T ]
When the ground voltage, line voltage or current is equal
to 0, then the harmonic rate of the concerned variable is
not calculated and its value is 0.
with
I [10 T ] =
1280
1
× ∑ i L2 and I [12 T ] =
1280
1
1536
1
× ∑ i L2
1536
1
With Ipeak [10 T ] = max[ abs (i L )] and
Ipeak [12 T ] = max[ abs (i L )]
In the case of ENERIUM 50, the measurement is
performd up tol range 25. In the case of ENERIUM 150,
the measurement is performed up to range 50.
25.14 Harmonics rate
L = 1, 2, 3
The products measure the harmonic rate “at the second’’
on the three ground voltages THDV1[1s], THDV2[1s],
THDV3[1s], on the three line voltages THDU12[1s],
THDU23[1s] and THDU31[1s], as well as on the three
currents THDI1[1s], THDI2[1s] and THDI3[1s], according to
the definition of the CEI 60050-551-20 standard.
ENERIUM Measure Station
89