MTR-3
Installation Instructions
DEIF A/S
Page 51 of 51
THD
( )
100
I
In
%
THD
I
1
63
2
n
2
f
⋅
=
∑
=
Current THD
I
1
− value of first harmonic
n − number of harmonic
( )
100
U
Un
%
THD
U
1
63
2
n
2
f
⋅
=
∑
=
Phase voltage THD
U
1
− value of first harmonic
n − number of
harmonic
( )
100
U
Un
%
THD
U
1
63
2
n
2
ff
⋅
=
∑
=
Phase-to-phase voltage THD
U
1
− value of first harmonic
n − number of harmonic
Energy
exponent
price
Tarif
10
Price
in tariff
Price
⋅
=
Total exponent of tariff price and energy price
in all tariffs
DEIF A/S reserves the right to change any of the above.
