Over rate excitation transformer for harmonics?
Over rate excitation transformer for harmonics?
(OP)
When selecting an excitation transformer for a static excitation system, is it necesasry to over rate the transformer to handle harmonics caused the thyristor swtiching?
Thanks in advance!
Thanks in advance!






RE: Over rate excitation transformer for harmonics?
From my point of view:
You MUST ask static excitation system supplier.
More better if it will be one package, less problem for you.
Best Regards.
Slava
RE: Over rate excitation transformer for harmonics?
Rather than guess on an over-rating factor I would start by telling the prospective transformer manufacturer that the load was a controlled rectifier of whatever output is required and let them size it appropriately. They'd ask for more information for sure, and if they didn't I would look for a different manufacturer.
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If we learn from our mistakes I'm getting a great education!
RE: Over rate excitation transformer for harmonics?
We have had quite a varied response to date, despite telling the manufacturers the rating of the existing unit, so the question was more to verify the offers than anything. If we go with the same rating as the exsintg unit we cant go wrong I suppose, and I definitely agree with you last comments Scotty.
Regards,
Paul