Siemens SICAM P 7KG7750 - Remarks to the Measuring Quantities

3
3.2 Formulas and Calculation of Derived Quantities
46 Power Meter SICAM P 7KG7750/55, Manual
E50417-B1076-C340-A6, Edition 09.2013
3.2.2 Remarks to the Measuring Quantities
Note 1
N: Nominal value of the counting pulses per period at nominal value of the system frequency
T: Nominal value of the period length of the system frequency in µs
P: Counted pulses within one period
V: Asymmetry
G: Unbalanced system
M: Balanced system
M
n
: Vector of the measured quantity, U
LN
or I
L
, from Fourier transformation
Note 2
No. of Equation Equation
1
2
3
4
5
6
22
BAG +=
⎟
⎠
⎞
⎜
⎝
⎛
++
⎟
⎠
⎞
⎜
⎝
⎛
−+=
πϕπϕ
3
2
cos
3
2
cos
1331221
MMMA
⎟
⎠
⎞
⎜
⎝
⎛
++
⎟
⎠
⎞
⎜
⎝
⎛
−=
πϕπϕ
3
2
sin
3
2
sin
133122
MMB
22
DCM +=
⎟
⎠
⎞
⎜
⎝
⎛
−+
⎟
⎠
⎞
⎜
⎝
⎛
++=
πϕπϕ
3
2
cos
3
2
cos
1331221
MMMC
⎟
⎠
⎞
⎜
⎝
⎛
−+
⎟
⎠
⎞
⎜
⎝
⎛
+=
πϕπϕ
3
2
sin
3
2
sin
1331222
MMD