Answer / dinesh

star & delta connection is done in 3 phase AC supply
system . In star conn. there is three phase & one neutral
terminal whereas in delta only three phase terminal is
there.


in star conn. resistance is more because two coils having
in series.
in delta conn. resistance is less because two coils having
in parallel with third coil.

Answer / amol moon

In star conection Line voltage= Root3.Phase voltage, and
Line current=phase current, and Nutral is usedfull to
stable to voltage.
In Delta conection Line voltage=Phase voltage, and Line
current= Root3.phase current.when single phasing in delta
he worked v connection and incresed heatting.

Answer / vamsi krishna

Star and Delta Connections are more importantly give
priority in electrical studies as they are the key
techniques to transmit, distribute and supply power. As the
power developed is in poly phase(mostly 3-ph), the Delta
connections are used to Transmit power in Bulk amount from
remote station and Star connection is used to distribute the
transmitted power as it has got neutral in it.

In poly phase System, Star-delta conversions are done so
that transmission and distribution is made possible with
less losses and more power viz Pdelta= 3 X Pstar.

Similar way losses are 3times in star than delta.

Seeing from harmonics point, both have their own imperatives.

why do you give the dc supply to field of alternator

3 Answers  

---

in star-delta tranformer,if the input of star connection is 400/7v 3 kva then what is the output of delta connection?

0 Answers   Elicon,

---

generally on the roadside v hav 11kv line which is being step down to 440v line to line....so any1 can tell me which type of transformer they r using whether it is star to delta,delta to star etc...???

9 Answers   Core Solutions,

---

i m in need of current rating chart of heavy duty pvc/xlpe, cu/al cables. can somebody provide me? if yes, plz send me at ashish_patel111@yahoo.com

0 Answers  

---

why capacotors burnt out

2 Answers   GMR,

---

why dc measurements are noted in mc whereas it is mi in ac measurements?

1 Answers  

---

What are the no-load losses for the 11000/415V transformer with the following rated capacity? 1.1500 kVA 2. 2000 kVA 3. 2500 kVA 4. 3000 kVA

0 Answers  

---

What is the permissible maximum flux density in transformer core?

0 Answers  

---

what is the meaning of ceiling voltage in Generator exciter?

1 Answers  

---

Explain Analog and Digital signals?

1 Answers   UOG,

---

What is the advantage and disadvantage of dry type transformer?

5 Answers   Bhel,

---

for 5KW resistive load can anyone please suggest me whether to go for UPS/Inverter or Generator depending upon cost calulations

0 Answers  

---