Answer / virendra

Delta - de;ta transfomer is used at Gnerating station or a
receiving station for Change of Voltage , generally it is
used where the Voltage is high & Current is low.
where Delta star is a distribution kind of transfoemr where
from secondary star neutral is taken as a return path .
this configuration is used for Step down voltage phenomina

Answer / raj

delta delta transformer is used in generating systems and
transmission systems because voltage is major
consideration(voltage is stepped up to above 11 or 33kv i.e
220 or 440kv) and delta star transformer is a distribution
transformer(stepped down to 11kv or 440v) because current is
major consideration, in distribution systems we need a
neutral, so the neutral point is taken from star connection.

Answer / rajendran m

Delta - Delta is 3 phase to 3phase.
Delta - Star is 3 phase with neutral

what is the function of open delta System?

1 Answers  

---

which one is more efficient, torq, power & ecnomy with the same frame size AC motor / DC motor?

0 Answers  

---

While testing LA mast,What are the parameter limits ?

0 Answers   TATA,

---

Has someone here done a sizing for a generator (3 phase), its for a pumping station. If you have an example for standby/duty and both running (I) star delta (ii) Soft Starter.

0 Answers  

---

WHAT IS THE HIGHEST UNDERGROUND TRANSMISSION VOLTAGE IN THE WORLD?

3 Answers   Power Grid,

---

How to select a transformer group to connect a 0,433 KV generation with 33 KV grid in bi directional flow of current

0 Answers  

---

What is differance betwwen Conventional MCC & Inteligent MCC?

2 Answers   Quantum, Siemens,

---

Why does amplifier gain reduce?

0 Answers  

---

what is load shedding

4 Answers   KSEB,

---

How do the synchronizing lamps indicate the correctness of phase sequence between existing and incoming alternators?

0 Answers   VECL,

---

WHAT IS NORMAL VECTOR GROUP USED FOR DESIGNING OF TRANSFORMERS??

11 Answers  

---

is that any software calculator to calculate the size of cable

0 Answers   JSW,

---