User Manual

KEW6310 16.3 Integration measurement
KEW6310 16.4
Power factor PF
Display digit -1.000 ~ 0.000 ~ 1.000
Mark - : leading phase
+ : lagging phase
×1
S
P
PF =
×2
()
2,1== i
Si
Pi
PFi
，
S
P
PF =
×3
(
)
3,2,1== i
Si
Pi
PFi
，
S
P
PF =
1P2W
×4
(
)
4,3,2,1== i
Si
Pi
PFi
，
S
P
PF =
1P3W ×1
(
)
2,1== i
Si
Pi
PFi
，
S
P
PF =
3P3W ×1
()
2,1== i
Si
Pi
PFi
，
S
P
PF =
Formula
3P3W3A
3P4W
×1
(
)
3,2,1== i
Si
Pi
PFi
，
S
P
PF =
Neutral current
Formula
32
cos3cos21
θ
θ
AAAAn
×
×
=
*θ2 : Phase difference between A1-A2
θ3 : Phase difference between A1-A3
16.3 Integration measurement ( Range)
Display item
Consumption :
+
WP
Regenerating :
−
WP
Display ra nge
0.00Wh ~ 999999GWh
(Display digit and unit are unified to the bigger ones of
+WS
and
−WS
.)
Consumption
(WP+)
Each phase :
(
)
∑
+
=+
h
Pi
WPi
Total :
(
)
∑
+=+ WPiWP
Formula
Regenerating
(-WP)
Each phase :
(
)
∑
−
=−
h
Pi
WPi
Total :
(
)
∑
−=− WPiWP
* when
Pi
+
:
P
> 0, -
Pi
:
P
< 0
*
h
: integration period
*
i = 1(1P2W×1)
*
i = 1,2 (1P2W×2, 1P3W, 3P3W)
*
i = 1,2,3 (1P2W×3, 3P3W3A, 3P4W)
*
i = 1,2,3,4 (1P2W×4)