Answer / ram

It is has advantage?let see

power= VICOS(@)

when voltage is reduced,current increases to keep the power
constant,

consider that ur going to export 500w power to user
current(i)=500*0.8/110=3.63A
if its is 230 v
current(i)=500*0.8/230=1.73 A

note that current is nearly doubled it will increase the
conductor cost and breaker rating etc.
110 v transmission line requires conductor of more capacity
when compared to 230 v

why do we not use equivalent voltage source in negative sequence equivalent ckt.

0 Answers   TATA,

---

Give the selection criteria of a 3 Phase transformer for industrial purposes ?

5 Answers   NDDB, TATA,

---

explain the what is a drive ? 0 4 which type motor r use in the celling fan..... PCB plannet 2 13 If stator & rotor of a 3-phase induction motor have different no. of poles, will the motor run or not?? types of drives Why dc supply is used for closing and tripping coil of ht breakers. What happen if we use only ups ac supply only. ACC 1 41 how the 3phase induction motor is running in 2phase supply with help of capacitor? 1 33 what is the actual difference betwen constructional details and constructional features? 1 20 how does commutator convert a.c to d.c?

0 Answers  

---

how many types of dc batteries standards are present?

2 Answers  

---

What is the exact formula for one weber of magnetic flux?

0 Answers   Bhel,

---

---

For what purpose an AVR in generator sensing generator output voltage?and how the sensing is done by AVR?

3 Answers  

---

What is different between MCB & MCC & isolator switch

1 Answers   Standard Chartered,

---

If 3-Ph motor of same rating connected in Delta & Star for same load one by one then which connection take more current in running (not in starting)for full load.(eg 8.5 KW,3-Ph 400 V)

1 Answers   GE,

---

Why we use auxillary relay ? what is function of differential relay, directional o/c relay?

0 Answers   Century Rayon, Mechanical,

---

why the capacitors works on ac only

5 Answers  

---

How many electrones need to flow in one second to equivalent to one Ampere.

3 Answers  

---

we use 3 phase supply for induction motor why not use two phase supply .

4 Answers   TLC,

---