Why generally the transformer primary is connected in star
& secondary in delta
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
What is the limitation of kirchoffs law?
What is the instrument to check the rotating diode fuse of alternator in running conditions?
What is the difference between earthing,ground&nutral?
The capacitive reactance of a capacitor of 1/(2(PI)) F at 10^3 H is
whate is the meaning of balance/unbalance,in stabilizers type
how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?
What is real time power factor control panel(RTPFC)?
What is the difference between shortcircuit current, rated current of cable & MCB with example? What will be the size of cable required for 5.5 KW motor (Full load current 10 Amps approx.), Starting current with DOL is 120 Amps. Aprrox. Short circuit current with LLLG fault is 2000 Amps Approx.
describe the phenomena of vacuum interruption in C.B
How to choose size of the cable w.r.to current carrying capacity ...
how to calculate the loss tangent of electrical cables
in our all power plant have connected in grid and grid voltage and plant voltage is same, but as per as electrical concept the power will transmit from high potential to low potential but here altough same,then how power transmit from power plant to grid.
i applied for c licence with my one year apperents trainee and i have attaced with A grade contractor company experiance that is for 14 monts experiance this document is sufeicant for c licence? pls tell why they rejected
how to calculate kvar in Akiva
Define steady state error.