K Factor; Sequence Harmonics - AEMC 8335 Power Pad User Manual

Distortion factors of phase (i+1) with i ∈ [0 ; 2] (DF or THD-R).

K factor

(excluding neutral – over 4 consecutive cycles every second)
K factor for phase (i+1) with i ∈ [0 ; 2].

Sequence harmonics

(over 3 × (4 consecutive cycles) every second)
Negative-sequence harmonics
2
1
∑
Vharm =
−
3
i = 0
Zero-sequence harmonics
2
1
∑
Vharm =
0
3
i = 0
Positive -sequence harmonics
2
1
∑
Vharm
=
+
3
i
= 0
Shop for AEMC products online at:
118
7
∑
[ ][
Vharm i 3 j +
j = 0
[ ][ ]
Vharm i 1
7
∑
[ ][
Vharm i 3 j
+
j
= 0
[ ][ ]
Vharm i
1
7
∑
[ ][
Vharm i j
3 +
j = 0
[ ][ ]
Vharm i 1
PowerMeterStore
www.
]
2
1
∑
, Aharm =
−
3
i
]
3
1
∑
, Aharm =
0
3
i =
]
4
1
∑
, Aharm
=
+
3
i
Power Quality Analyzer Model 8335
7
∑
[ ][
Aharm i 3
2
j = 0
[ ][ ]
Aharm i 1
= 0
7
∑
[ ][
Aharm i
3
2
j
= 0
[ ][ ]
Aharm i
1
0
7
∑
[ ][
Aharm i
3
2
j = 0
[ ][ ]
Aharm i 1
= 0
.ca
]
j + 2
]
j
+ 3
]
j
+ 4
1.877.766.5412