Why generally the transformer primary is connected in star
& secondary in delta
- 7 Answers
- 16474 Views
- I also Faced
- E-Mail Answers
Answer Posted / rekha goley
i think the reason behind this is that we know that vp=vl/1.732 and il=ip for star connection....similarly for delta connection vp=vl and ip=il/1.732....means we can say that line current is i.732 times the phase current in delta connection ......and we dont want more line current at the recieving side because this leads to more losses and due to heavy current our transformer cud be burn,it can be happen only in that case if we connect our secondary side in star although in some app.we need its reverse also........thats why we always connect primary side of transformer in star and secondary side in delta........thank you...
| Is This Answer Correct ? | 0 Yes | 2 No |
Post New Answer View All Answers
If we have to feed a housing complex having load 8MVA, than what would be the better option, either we first step down 33kv supply into 11kv & than 430v or we proposed no of 33/.44 kv transformer, also which option is economical?
in the directional overcurrent and earthfault protection,normally we are setting the angle 45 deg lead for phase fault overcurrent and -45 deg lead for earthfault fro forward direction.but both the fault are operating on the same angle region only.why?how the relay will response?
can we use engine degreaser for electrical motors?
How we calculate the current carrying capacity of H.T. cabel?
how can we design robots
what is the step by step formula for calculating bus bar phase and neutral size of a panel board.suppose the incomer of panel board is 100A..???step by step answer please
Help need in transformer !? Hello Friends The parameters of 2300/230 v 50hz t/f is R1=0.286 ohm R`2=0.319 ohm Rc=240 ohm X1=0.73 ohm X`2=0.73 ohm Xm=49.2 ohm Secondary Load impedance ZL=0.387+J0.29 solve the exact equivalent circuit with normal voltage across primery.. I know every thing but i cant find CURRENT I1=? and I`2=? Please help me give solution or only Formula please please...
what are types of encoder
Can i use the B-curve MCB instead of C-curve MCB
How to Preparation of online test
Is there chopping current in resistive circuit
How to select, design,size & calculate for 11 KV/33KV/66KV/132KV/220 KV/440 KV circuit breaker for HT side of transformer protection/HT distribution protection?
I need HT sphere gap calibration table. Can any body help me.
I Have 3 Phase 10 KW AC Alternator i found one phase weak, so what will be the reason & what action shouls i take to rectify the same.
how will reduce the voltage. if 12volt/250ma transformer toreduce 6 volt
