what happen if i connect DYn11 and DYn1 vector group
transformer in parrallel?other things are same like votage
ration,x/r ratiob etc...

Answer Posted / tanesh

When DYn11 and DYn1 are out of phase by 60deg. Although the magnitude of both transformers are same, but phase different would cause potential difference between the transformers. This will cause short circuit the two transformers are paralleled.

Is This Answer Correct ?    4 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What will happen if we on 200kvr capacitor bank(11kv in bus)If there is low load on transformer (1.5 mva 33/11 kv)

1128


what is meaning of sympathetic tripping with respect to relays and give the values for current carrying capacities for copper and aluminium cables from 16sq mm to 500sq mm

4370


What is the drawback of static coefficients?

913


What is the requirement of grounding the neutral of single phase generators on load? If the neutral is not grounded, what will be the effect?

1630


why capacitive load is not used in routine life????any reason is there ??????

1147






how to calculate the torque of a motor?

1589


What Maximam Gap Taibaar & Bush

1824


Draw a 230kv two-bus bar system showing the following. 1.Two generators (150MW) each connected through one 15.75/230KV transformers 2. 1 outgoing lines 3. Two 230/130 KV transformers 4. BUS PT's 5. CT

2133


How much earthing frequency is capable?

1584


What is the phase relationship between the primary and secondary voltages of a transformer?

595


What is marx circuit?

661


Sir, I have applied for the of Assistant.engineer of NPDCL. please send me all AP TRANSCO AND JENCO solved papers of previous exams . I requested send me the papers to my id as soon as possible (rajanikanth_peddi@yahoo.co.in) (This is very urgent) Thank You,

2407


we have two generators different capacity on 15 MW and other 6MW at 11 KV , 15 MW gen. bus short level current 40KA,and 6MW short level current 25KA,, length of cable 100MTR between 6 MW from 15MW gen. for bus coupling . kindly tell any one can we use both NGR OR one NGR from any GEN. BOTH NGR has diff. rating. Tariq pakistan

1232


ITI r/tv trade APPLY (J.T.O VACANCEY) ALSO INCLUD AITT ELECTRONIC,WRITEEN XAM DONE 23.03.10 BUT NO RESPONCE WHY ANATHER ID gopal_gh007@rediffmail.com

2960


when we design electrical schemes of 11/.415kv distribution..wen and were should we show the relays??what is the function of it?for example..we place EFR Relay CT between transformer neutral link and transformer earth.Like this what are the other type of relays we should use?why?where?Explain please..Thank you

1386