can some one clearly explain why -48 volt DC use in telecom site????

0 Answers  

---

two 100W/230V bulb are connected in series. what would be the voltage drop across 1 bulb

6 Answers  

---

What will happened if the neutral of the (star connected secondry) Xformer disconnected? (if its Above KVA rated one)

0 Answers   Equate,

---

what is the function of commutator in dc motor?

52 Answers   Aviation, HP, Raj Construction, TCE, University Exams,

---

why are we maintaining some specific gravity in battery ?

5 Answers  

---

Why 268hp induction motor taking different current in three different phases? (In which two phase having same current and one having higher value compare to other 2 phases.)

1 Answers  

---

What is the difference between circuit breaker and isolator

0 Answers  

---

List the time domain specifications.

0 Answers  

---

Why the power factor improvement is so important in industrial loads

0 Answers  

---

what is the current rating of 2500 KVA,33KV/433v transformer on secondary(LT) side

9 Answers   Reddy Labs, Vitrum Glass,

---

Is it a better option to procure screw type air compressor rather than reciprocating air compressor?If so, what is the reason?How should we select an air compressor(100 CFM)? Please mention the important parameters of air compressor.

0 Answers  

---

During speed control of dc shunt motor with flux control methode,when armature voltage is constant, How can it possible to increasing the armature current?

1 Answers  

---