
13.3 KEW6305
(5) Calculation items
Apparent power S [VA]
Displayed digit Same as active power.
×1
AVS
×2
)2,1(1_
iAiViS
,
2_1_ SSS
1P2W
×3
)3,2,1(1_
iAiViS
,
3_2_1_ SSSS ++
1P3W
)2,1(
iAiViSi
,
21 SSS
3P3W
)2,1(
iAiViSi
,
()
21
2
3
SSS +=
3P3W3A
)3,2,1(
iAiViSi
,
321 SSSS +
Equation
3P4W
)3,2,1(
iAiViSi
,
321 SSSS +
Reactive power Q [Var
Displayed digit Same as active power.
Polarity indication - (minus) : leading phase
+ (no sign) : lagging phase
×1
22
PSQ −=
×2
()
2,1___
22
=−= iiPiSiQ
,
2_1_ QQQ
1P2W
×3
()
3,2,1___
22
=−= iiPiSiQ
,
3_2_1_ QQQQ
1P3W
()
2,1
22
=−= iPiSiQi
,
21 QQQ +
3P3W
()
2,1
22
=−= iPiSiQi
,
21 QQQ +
3P3W3A
()
3,2,1
22
=−= iPiSiQi
,
321 QQQQ ++
Equation
3P4W
()
3,2,1
22
=−= iPiSiQi
,
321 QQQQ ++
Power factor PF
Display range -1.000 to 0.000 to 1.000
Polarity indication - (minus) : leading phase
+ (no sign) : lagging phase
×1
S
P
PF =
×2
)
2,1== i
Si
Pi
PFi
,
S
P
PF =
1P2W
×3
()
3,2,1== i
Si
Pi
PFi
,
S
P
PF =
1P3W
)
2,1== i
Si
Pi
PFi
,
S
P
PF =
3P3W
()
2,1== i
Si
Pi
PFi
,
S
P
PF =
3P3W3A
)
3,2,1== i
Si
Pi
PFi
,
S
P
PF =
Equation
3P4W
)
3,2,1== i
Si
Pi
PFi
,
S
P
PF =
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