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Voltage Rating of Kraft Transformer Insulating Paper vs Kraft Diamond Epoxy Paper

Voltage Rating of Kraft Transformer Insulating Paper vs Kraft Diamond Epoxy Paper

Voltage Rating of Kraft Transformer Insulating Paper vs Kraft Diamond Epoxy Paper

(OP)
In terms of volts/mil, are these two equal in their voltage ratings. When oil soaked following a full vpi and when not soaked.

RE: Voltage Rating of Kraft Transformer Insulating Paper vs Kraft Diamond Epoxy Paper

I haven't heard of kraft diamond paper but I guess it's this
https://www.electro-wind.com/3-mil-0076-mm-thick-g...

Clicking specs at the bottom of that page, shows 50 kV/mm oil soaked for that product.

I don't think the phrase vacuum pressure impregnation (VPI) applies to any of this, but I gather you mean filling with oil under a vacuum.

RE: Voltage Rating of Kraft Transformer Insulating Paper vs Kraft Diamond Epoxy Paper

No difference in KV/mm between the two. BDV in oil is approximately 5-7 times more than in air.

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