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On line oil filter

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sky72

sky72

Electrical
Joined
Mar 21, 2001
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15
Why the SF6 intefacing 240MVA auto-transfomrer need this on line oil filter while the AIR type not required?
Thks.
 
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Could you please clarify the problem you have encountered? It appears you are questioning the reasoning for an oil filtration system on an SF6 cooled transformer. In this case an oil filter for cooling oil will not be required.
 
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i think you are talking about bushings interfacing SF6 switcggera to the transformer, the bushing is most probably oil to sf6 type or is it of some other type. for oil to air type the online oil filtration system can also be used, as it only keeps the oil in good condition and minimises oil deterioration rate.

please give some more details then only the actual need of the same can be identiifed.
 
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It may be needed for SF6 auxiliaries.
 
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