what does the transformer connection symbol YNaod1 mean ?

Answer Posted / sujeet pandey

you all people must be knowing about the symbols like YN and
d1 but what about a0. The 'a' represents that is
auto-transformer and 0 represents that there is 0 phase
difference b/w H.V. and I.V.(intermediate voltage) winding
since both are star-star. d1 means the transformer has a
tertiary winding which is delta connected and this delta is
lagging the H.V. winding by 30 degree.
There is no symbol for Intermediate voltage becoz all EHV
transformers are star-star connected.

Is This Answer Correct ?    28 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

WHAT IS THE DIFFERENCE BETWEEN GENERAL INVERTER AND SOLOR INVERTER TELL ME PLZ

1632


What is the IS standard for MCCB to be use (As per capacity of AMP)& for ACB also.

1550


is the value of inductance depends upon the evalue of thitha in doubly excited machine?

1435


what are the analog quality input for protection function?what are minimum reqiments?

1390


What are the Full Forms of TVM, MTL, CVT ?

883






what is (+) and (-) in generator field detector stand for?

1361


how will calculate the safe starting current of 3-phase squirrel cage induction motor?

1421


what is the pulse and audio frequency transformer? what is different between induction regulators and tap changing transformer?

1616


HOW TO CALCULATE THE HEAT AND LOAD OF LT-SUBSTATION WHICH CONTAINS 2*1MVA TRANSFORMERS,LT SWITCH BOARD,MLDB,ACB,BUSBAR,ETC...?

3453


If you don’t have coal, salt and copper, then how would you earth your connection temporarily at a camp site.?

1710


what is the mechanism of operation of brushless dc motor why is it more wexpensive then ordinary permanent magnet motors

1476


What is the purpose of stand by earth fault protection for transformer ?

1526


Describe the colour rendering properties of i) tungsten filament lamps ii) tubular fluorescent lamp

2598


we have 2.2kw,Y,3000rpm motor but 6leads found in TB what happen if we connect in delta?

1230


specify the inbuilt protections in DG

1584