Answer / ramesh

from AVR

what is an isolation transformer??? what is its purpose??? what happens if it is not used where it should be used?????

2 Answers  

---

What are the advantages of stationary armature and rotating field system?

0 Answers  

---

WHY THE +VE POLARITY OF 48V DC POWER SUPPLY IS USUALLY GROUNDED?

1 Answers   Tulip,

---

i have some screw comprressor with 630kw power,i have established them with simple star to delta circuit,by the way there is so much inertia when the screw comprressors start, can you offer me contactors power with 400vac or any cataluge to choose the contactors

0 Answers  

---

why contactors are used ...? is contactors and relays are same ...?

5 Answers  

---

---

What are the site acceptance tests for power cables, DG Sets, LT panels & 30kVA UPS ?

0 Answers  

---

What is corona loss?

2 Answers   PWD,

---

how power trnafor from 1 point to another point in bus bar ya transmission line( voltage trnasfer from 1 point to another poin)

0 Answers   Suzlon,

---

how DC motor operating in detail .pls any one guide me .iam not clear idea about that .thank u

2 Answers  

---

i Have 1000kva 11/.4 kv voltemp make t/f Its a 2 year old. i wants to known how much iron losses & copper loses during no load condition.

2 Answers  

---

induction motor. we have a three phase supply from diffrent source like R= transformer. Y = DG sets. B = ups. if motor is runing.

4 Answers   Birla,

---

Why a transformer is known as a static device?

7 Answers  

---