MI 2893 / MI 2892 / MI 2885 Measurements
226
0 ÷ 20
th (1)
0 ÷ 13
th (2)
0 ÷ 5
th (3)
I
Nom
: Nominal voltage (RMS)
Ih
N
: measured harmonic current
N
: harmonic component
(1)
: If fundamental voltage frequency is within 5÷16Hz range
(2)
: If fundamental voltage frequency is within 16÷33Hz range
(3)
: If fundamental voltage frequency is within 33 ÷ 120Hz
0 % I
Nom
< THD
I
< 100 % I
Nom
100 % I
Nom
< THD
I
< 200 % I
Nom
I
Nom
: Nominal current (RMS)
6.2.16 Voltage interharmonics
1 % U
Nom
< Uih
N
< 20 % U
Nom
0 ÷ 20
th (1)
0 ÷ 13
th (2)
0 ÷ 5
th (3)
1 % U
Nom
< Uih
N
< 20 % U
Nom
U
Nom
: Nominal voltage (RMS)
Uih
N
: measured harmonic voltage
N
: interharmonic component
(1)
: If fundamental voltage frequency is within 5÷16Hz range
(2)
: If fundamental voltage frequency is within 16÷33Hz range
(3)
: If fundamental voltage frequency is within 33 ÷ 120Hz
6.2.17 Current interharmonics
0 ÷ 20
th (1)
0 ÷ 13
th (2)
0 ÷ 5
th (3)
I
Nom
: Nominal current (RMS)
Iih
N
: measured interharmonic current
N
: interharmonic component 0
th
÷ 50
th
(1)
: If fundamental voltage frequency is within 5÷16Hz range