Answer / shariff

It is not economical and feasible to generate other than 3 Phase. It require more and complex applications for to generate and transmit the power.

Answer / bhuvnesh wadhwa

we can Generate 3phase, 6phase, 9phase even 12 phase.
Which is not economical Feasible.
Handling, cost and complexity is too much Increse.

Answer / prakash

no, it is not possible to generater 4 and 5 phases.The main
thing is symmetrical phase diffrence. In 3 phase the phase
diffrence is 120 deg. between each phase.Hence we can
generate 3 phase .We can also generate 6 phases with phase
differance 60 deg.

What are safety features considered for Lifts during emergency?

1 Answers  

---

A separately excited dc motor having 2 ohm armature resistsance draws a current of 10A and torque developed is 20 Nm under rated field condtion. the speed of the motor under the rated field condtion , when it is connected to a 100V DC source and delivering 10Nm torque....

2 Answers   DRDO,

---

In a three phase transformer(delta/star connected)when i touch one end of the bulb in any one phase and other end to earth..will the bulb glow or not..if not why?..i'm touching the bulb in star connected side...

6 Answers  

---

why the earth pin is thicker than other pins in a plug? If it is for reducing resistance, then why the copper earth wire is not so thick as earth pin of socket?

5 Answers   Omax,

---

limitation of conductor height on ground when we consider EMC

0 Answers  

---

Make a list observation on Transformer?

0 Answers   HSL,

---

How is the speed of a DC shunt motor related to the armature current?

0 Answers   GE,

---

why transmission is only 3 phase and not 2 or 4 or poly phases

0 Answers   Infosys,

---

circuit diagram of trip circuit supervision relay

0 Answers  

---

I have a drawing of a wound rotor induction motor for a crane. This crane motor has 5 forward speeds & 5 reverse speed implemented of course with different amount of resistance for each speed setting selected. What has got me scratching around is the fact that 8 of the 10 speed selections switch in uneven (unbalanced) amounts of resistances on each of the 3 connections to the motor's rotor.Can this be possible? I would have assumed this would produce unbalanced rotor currents and therefore vibration in the motor. I would greatly appreciate anyone's comments on this. Many thanks, Confused.

0 Answers  

---

i have been tasked with a design of protection, metering and control(PMC) relay panel extension to accommodate all PMC relays.There is an already existing panel where this one will be built.What are the design aspects for this kind of project? thank you.

0 Answers  

---

If our power factor is lagging then who is in profit? I mean consumer or Supplier!

1 Answers   Sail,

---