Answer / sms

You can run your transformer with
1. Max winding temp up to 95 Deg.C
2. Max Oil temp up to 85 Deg.C

Answer / k.prakashchandra

The flash point of good oil is about 125'c.You can go upto
85'c

Answer / nn duc

According to ABB,
The temperature rise limits for transformers with
temperature class of insulation A is then:
- Maximum winding temperature rise of 65ºC
- Maximum top oil temperature rise of 60ºC
If the transformer is designed for service, where the
temperature of cooling air exceeds one of the
maximum values, the allowable temperature rise for the
winding, core and oil shall be reduced

We have received supplies of the ordered material. payments against the supplies also released. Where ST paid 4% against form C. Meanwhile it has been observed that 25% of material supplied was defective. Please suggest whether the issuance of C form from our side would be stopped till settlement of liabilities.

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