Why an auto transformer always has a tertiary winding & that is of delta connection?:?
D Debabrata Member Location Kolkata Jun 3, 2015 #1 Why an auto transformer always has a tertiary winding & that is of delta connection?:?
T templdl Senior Member Location Wisconsin Jun 3, 2015 #2 Debabrata said: Why an auto transformer always has a tertiary winding & that is of delta connection?:? Click to expand... By "always", Auto transformer as is a motor starter or as in a buck/boost transformer?
Debabrata said: Why an auto transformer always has a tertiary winding & that is of delta connection?:? Click to expand... By "always", Auto transformer as is a motor starter or as in a buck/boost transformer?
Tony S Senior Member Location Resting under the Major Oak UK Jun 3, 2015 #3 An autotransformer is almost transparent to harmonics and the fault currents pretty horrendous, the tertiary winding is to control both. For a motor starter I wouldn?t expect to see one, for the time it?s in circuit it?s not worth the expense.
An autotransformer is almost transparent to harmonics and the fault currents pretty horrendous, the tertiary winding is to control both. For a motor starter I wouldn?t expect to see one, for the time it?s in circuit it?s not worth the expense.