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"Are galvanized zinc coatings okay for transformer oil?"

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Current postings:

Ed. note: Please!
No abstract questions.
Huh?

May 4, 2022

Q. What are the reasons for getting green colour transformer oil in storage drums?

Lakshmi .g
Employee - Hyderabad, India
^




Closely related Q&A's, oldest first:

July 29, 2008

Q. WE ARE A TRANSFORMER MANUFACTURER IN INDIA. THE CONTAINERS ARE GALVANIZED ON THE INSIDE. DOES IT HAVE ANY EFFECT ON TRANSFORMER OIL WHEN IT IS IN CONTACT WITH ZINC? DOES INSIDE SURFACE WITH ZINC/ GALVANIZING REQUIRE ANY PAINT TO AVOID ANY EFFECT ON TRANSFORMER OIL?

JAYAPRAKASH RAO
- Hyderabad, A.P. , India
^


August 1, 2008

A. You are fortunate in that transformer oil must be dry (low water content) to retain its insulating properties. Moisture in oil is the reason that any reaction takes place in this type of situation. But in a transformer, moisture in the oil causes arcing, a much bigger problem that slow corrosion.
Zinc does not dissolve in or react with most mineral oils.

geoff_crowley
Geoff Crowley
Crithwood Ltd.
Westfield, Scotland, UK
crithwood logo
^


August 12, 2008

A. In certain conditions zinc may create a zinc metalo-organic compound . I would go for a test piece ,immersion in oil for couple of days or weeks and to weigh before and after, checking any weight loss.

Cair Shishani
Khair Shishani
aircraft maintenance - Al Ain, UAE
^

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