Transformer voltage

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Ainsley Whyte

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Location
Jamaica
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Senior Electrical Engineer
TR-3 XMFR
SEC. FEEDER
2.4/4.16KV SWG

I have seen this on a electrical distribution system and trying to understand the voltage

I know it is the secondary voltage of the transformer switch gear . but 2.4/4.16KV ( WHAT IS IT SAYING CAN SOMEONE EXPLAIN ?)
 
SO for a TR-4 XMFR
SEC. FEEDER
1.387/2.4KV SWG is a Wye secondary that will be 2400V line to line and 1387V line to neutral.

this should be correct ??
 
Last edited:
Ainsley Whyte said:
no we actually have 2400v voltage line to line
Click to expand...
2400 volts line to line was a common industrial voltage system around here a long time ago. It was almost always an ungrounded delta system. I worked on a couple of projects where we changed the distribution voltage from 2400 to 4160. The transformer banks were all made up 3 single phase transformers, so we just changed the primary connections from delta to wye when the supply voltage was increased.
 
don_resqcapt19 said:
2400 volts line to line was a common industrial voltage system around here a long time ago. It was almost always an ungrounded delta system. I worked on a couple of projects where we changed the distribution voltage from 2400 to 4160. The transformer banks were all made up 3 single phase transformers, so we just changed the primary connections from delta to wye when the supply voltage was increased.
Click to expand...
What was the advantage to change from 2400 to 4160 v
 
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