What is dc current source?

0 Answers  

---

Why is back emf used for a DC motor? Highlight its significance.

0 Answers   ABB,

---

TO CALCULATE THE RESISTANCE OF GRR OF HT MOTOR 400KW WHEREAS STATOR VOLTAGE 6.6KV AND ROTOR VOLTAGE 705V AND ROTOR CURRENT IS 346A.

0 Answers   Bhel, NTPC,

---

Why does the rotor rotate?

1 Answers   Machino Polymers, OPTCL,

---

when a 500kva-400hz single phase transformer operated on a 100hz supply then what will be kva required

2 Answers  

---

hi pal, i am vengatesh from tamilnadu(chidambaram),i have called for the written test for the post of jr executive(ELECTRICAL) of AAI ,I dont know about the question paper pattern,so any kindly help me to face the examination,post me the model question papers and some tips to write my examination to (vengi.annadurai@gmail.com)

0 Answers  

---

what is the diffrence between preventive maintinance corrective maintinance?

7 Answers   Siemens,

---

what is necessity of using isolation transformer?

4 Answers   NTPC,

---

What are the effects to a distribution transformer rated 10Kv with ratio 10Kv/0.433Kv, 3phase 50hz for example but fed with power supply of 11Kv?

2 Answers  

---

whether the generating voltage can be made to be transmitted by means of signals to the recieved end or at the consumers end?

6 Answers   TCS,

---

What is the automatic voltage regulator with servomotor?

0 Answers   Simbhaoli Sugars,

---

Why the CT Secondary is rated as 5A generally?

2 Answers  

---