Answer / badshah

1.2 times that of 50 Hz Power. Frequency increases the
Speed & which in turn increases the power consumption
[P=(2*pi*N*T)/60 and N = 120f/Poles)]..so the ratio is
60/50. But the losses will be more, cause iron & hystersis
losses proportional to frequency squared. I think overall
efficiency may be reduced than when the motor is connected
50 Hz supply.

how can we make cable shedule for controll wiring ? which details must be required for it.?

0 Answers   L&T,

---

specify the inbuilt protections in DG

0 Answers  

---

What is the formula to calculate the rating of a thermal over load relay

2 Answers  

---

WHY WE CAN GENERATE POWER IN 3PHASE MODE ONLY NOT IN 4 OR 5 PHASE?

10 Answers  

---

what will happen if i commission a transformer without connecting the neutral?

2 Answers   L&T, Sail,

---

As per principle we say in three phase supply ,the voltage is producing by phase angle between two phase so two phase is needed means then why we using three phase ?

2 Answers  

---

What is transformer tap changers please explain

3 Answers   Feedback Venture, Sail,

---

why the excitation is necessary to produce the reactive power

2 Answers  

---

explain the operating principles of CVT & RVT

2 Answers  

---

What is relation between transmission lines & Communication lines ?

0 Answers   NTPC,

---

How reverse power relay sense the power is reverse in the system.

2 Answers  

---

What is the meaning of Dyn11 of Transformer.

17 Answers  

---