DOC-0017-04-EN: AC20 Series - Hardware Installation Manual
DOC-0017-04-EN-A 22.03.2023
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Calculation
The choke ratings listed above are for guidance only. Customers may want to calculate their own ratings
using the formula below:
𝐿𝐿
=
�𝑉𝑉𝐼𝐼𝑉𝑉𝑡𝑡
√
3
×
𝑍𝑍
100
�
𝐼𝐼𝐼𝐼𝑉𝑉𝑡𝑡
÷ (2
𝜋𝜋
×
𝑓𝑓𝐼𝐼𝑉𝑉𝑡𝑡
)
Where:
L
= Inductance/phase (H)
Vout
= Line-to-Line Output Voltage (V)
Z
= AC Motor Choke Impedance (%)
Iout
= Rated Output Current (A)
fout
= Output frequency (Hz)