Writing Transformer Ratio 1

[mgtrp]

I recall that somewhere in the IEEE standards collection, there is a note on the correct way to write the transformer voltage and ratio, e.g. 13800-600/347V vs 13800/600V vs 13800:600V, etc. I have been looking through them this morning trying to find this, but haven't managed to yet - does anyone know the standard number?

Thanks in advance.

 

[jghrist]

LIQUID-IMMERSED DISTRIBUTION, POWER, AND REGULATING TRANSFORMERS Std C57.12.00-2000

Table 10, Note 3—The voltage ratings of a transformer or autotransformer shall be designated by the voltage rating of each winding separated by a dash (-) or voltages may be listed in tables. The winding voltage ratings shall be designated as specified in Table 11(a) and 11(b).

 

[mgtrp]

Thanks, that's exactly the table I was looking for. I'm not sure how I missed it before!