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The type 8, 9 and 10 inverters require the use of an AC line choke. In the event of a system comprising a number
of type 8, 9 and 10 modules connected to a common supply, a separate AC line choke is required in the supply to
each module.
The AC line choke impedance required is nominally 3% of the inverter rating for the highest power build of each
frame size. Eurotherm Drives can supply the following line chokes:
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The choke should not saturate at the peak instantaneous current level specified. This value accommodates the
150% overload condition.
For complete details refer to the following Eurotherm Drives drawings included in Appendix A:-
HL463115C Rating Specification for HPAC AC Line Choke
CO389936D201/2/3 584S Type 8,9 and 10 Choke Outline Drawing
Where an inverter is individually supplied from a dedicated transformer with the required impedance, the AC line
choke is not required. When an EMC filter is used the line choke must go between the filter and inverter.
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This manual was downloaded on www.sdsdrives.com
+44 (0)117 938 1800 - [email protected]
