Total harmonics current phase angle θak [deg – KYORITSU 6315 Instruction Manual User Manual
Page 150
KEW6315
Items measured at Harmonics measurement
KEW6315
- 148 -
Total harmonics current phase angle θAk [deg]
Displayed digit
4-digit
Display range
0.0º to ±180.0º
Equation
−
=
−
cki
ckr
ck
A
A
A
1
tan
θ
c: Measurement channel θA
1k ,
θA
2k ,
θA
3k ,
θA
4k
A: Harmonics current
k:Harmonics of each order
r: Real number after FFT conversion,
i: Imaginary number after FFT conversion
Harmonics voltage current phase angle difference θk [deg]
Displayed digit
4-digit
Display range
0.0º to ±180.0º
Equation
ck
ck
ck
V
A
θ
θ
θ
−
=
c: Measurement channel, k: Harmonics of each order
1P2W-1 to 4
θ
1k
, θ
2k
, θ
3k
, θ
4k
,
=
−
sumk
sumk
sumk
P
Q
1
tan
θ
1P3W(3P3W)-1
to 2
θ
1k
, θ
2k
,
=
−
k
sum
k
sum
k
sum
P
Q
1
1
1
1
tan
θ
θ
3k
, θ
4k
,
=
−
k
sum
k
sum
k
sum
P
Q
2
2
2
1
tan
θ
=
−
sumk
sumk
sumk
P
Q
1
tan
θ
3P3W3A(3P4W)-1
θ
1k
, θ
2k
, θ
3k
,
=
−
sumk
sumk
sumk
P
Q
1
tan
θ