star-triangle AC motor 3 phase, thermal breaker

Hi,

Before a star - triangle circuit I have fuses. But in the Tringle circuit there is a thermal breaker (don't know if I'm using the right words).

I know to calculate the triangle thermal breaker that I should use 0,58 to multiply with the motorcurrent.

From where does the 0,58 comes ?

oops

oops found it

IF = IL / 3 sqrt

1 / 3 sqrt = 0,58

Only took 8 minutes to get the answer.

This forum ROCKS!

lol

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