KYORITSU 6310 Instruction Manual - Manual (Page 287)

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
3 2
cos 3 cos 2 1 θ θ
A A A An
Ч Ч =
*θ2 : Phase difference between A1-A2
θ3 : Phase difference between A1-A3
16.3 Integration measurement ( Range)
Display item
Consumption :
+
WP
Regenerating :
−
WP
Display range
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 :
( ) ∑
+ = +
WPi WP
Formula
Regenerating
(-WP)
Each phase :
( )
∑
−
= −
h
Pi
WPi
Total :
( ) ∑
− = −
WPi WP
* 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 (1P2WЧ4)