Answer Posted / pratap kumar

In India the electrical system is come later as compared with U.S. USA is choose 60hz frequency for 110-120v. The losses are increased in any machine by increase the frequency. but the voltage is low as compared with India. then the voltage loss occur in machine is low when compared to India.but the frequency losses are more . My conclusion is in India the machines are supported to 240v,50hz for cover the losses and in U.S is 120v,60hz respectively.
advantages for USA supply
1: it is safe from shock hazards because the voltage is low
2: suppose the supply is grounded less power is loss as compare with India
the above two points are disadvantages for India
suppose we use 60hz with 240v it is very dangerous and it cause more losses in machine.

How PADO software increase the efficiency of power plant?

6553

---

State ohm’s law?

1169

---

what happen as when voltage drop(or may decrease) ? in case of atomic base theory?

2081

---

errection check list for transformer maintenance

2654

---

1.What will be stored in online ups EPROM IC?

2100

---

What is q factor?

1170

---

What are the advantages of skewing of cage rotor conductors?

1277

---

WHY THE DIMENSION OF TWO SAME RATED MACHINE IS DIFFERENT ?

2282

---

can i connect the two phases of scott connected transformer,if not why?

2011

---

How much of the total hydro power potential has been exploited so far in india?

1176

---

If the rated speed of a d.c. Shunt motor is1440 r.p.m, which method of speed control would you suggested to obtain a speed of 1500 r.p.m?

1210

---

explain me the relation between torque, frequency,speed,voltage and current in the 3 phase induction motor?

2302

---

What are the different types of controllers?

1131

---

we can run 2phase as 3phase .what will be the differnce with respect to phase angle, power, current between the two modes

2308

---

Explain using drawings what is reverse PID action w.r.t PID controllers.

3533

---