'n' on Dyn11 transformers?

[rail1996]

Please tell me what the 'n' stands for on a Dyn11 vector group transformer.

 

[mvcjr]

n -> neutral

The neutral point is brought out of the transformer tank.

God bless!

 

[busbar]

FWIW, in ANSI parlance it would be the "X0" terminal on a ∆-Y transformer.

 

[davidbeach]

An in ANSI parlance, it would have the Wye on primary and the Delta on the Secondary to have the primary lead the secondary by 30 degrees.

 

[busbar]

davidb -- So noted. My mistake.

 

[davidbeach]

busbar,

Not necessarily a mistake. If the transformer is a step up transformer, it would be the X0 terminal, and the H0 terminal on a step down transformer.

 

[jbartos]

Suggestion: Visit

http://www.mss.de/eng/stromversorgungen/produkte/pdf/gr3e-inh.pdf

page 4 where "n" is not being used

 

[mvcjr]

If I remember right, when there is no 'n' in the vector group designation, e.g. Dy11, the neutral is not brought out (not accessible for use). When there is an 'n' in the vector designation the neutral terminal 'n' or 'X0' is available.

Please correct me if I am wrong!

God bless!

 

[hheid]

When we mention to n in vector group ,it means that the neautral is brought out and earthed

 

[jbartos]

Suggestion: The neutral n is grounded, which implies one of various system grounding schemes

 

[askit9197]

The "n" stands for the neutral being brought out of the transformer tank and being available for current measurement or for being earthed. If "n" is absent from DYn11 that means it is an isolated neutral Delta-wye Xmer