User Manual

16.2 Inst measurement KEW6310
16.3 KEW6310
(6) Item and formula
Apparent power S [VA]
Display digit same to the indication for active power
×1
AVS
×
=
×2
)2,1(1_
=
×
=
iAiViS
2_1_ SSS +
=
×3
)3,2,1(1_
=
×
=
iAiViS
3_2_1_ SSSS ++
=
1P2W
×4
)4,3,2,1(1_
=
×
=
iAiViS
4_3_2_1_ SSSSS
+
+
+
=
×1
)2,1(
=
×
=
iAiViSi
21 SSS
+
=
1P3W
×2
2_1_ SSS
+
=
()
2_22_12_,1_21_11_ SSSSSS +
=
+
=
×1
)2,1(
=
×
=
iAiViSi
()
21
2
3
SSS +=
3P3W
×2
2_1_ SSS
+
=
(
()
1_21_1
2
3
1_ SSS +=
()
2_22_1
2
3
2_ SSS +=
)
Formula
3P3W3A
3P4W
×1
)3,2,1(
=
×
=
iAiViSi
321 SSSS +
+
=
Reactive power Q [Var]
Display digit same to the indication for active power
Mark - : leading phase (current phase against voltage)
+ : lagging phase (ditto)
×1
22
PSQ =
×2
()
2,1___
22
== iiPiSiQ
2_1_ QQQ
+
=
×3
()
3,2,1___
22
== iiPiSiQ
3_2_1_ QQQQ
+
+
=
1P2W
×4
()
4,3,2,1___
22
== iiPiSiQ
4_3_2_1_ QQQQQ
+
+
+
=
×1
()
2,1
22
== iPiSiQi
21 QQQ +
=
1P3W
×2
2_1_ QQQ
+
=
()
2_22_12_,1_21_11_ QQQQQQ +
=
+
=
×1
()
2,1
22
== iPiSiQi
21 QQQ +
=
3P3W
×2
2_1_ QQQ
+
=
()
2_22_12_,1_21_11_ QQQQQQ +
=
+
=
Formula
3P3W3A
3P4W
×1
()
3,2,1
22
== iPiSiQi
321 QQQQ ++=