Answer / binay agrawal

if we give approx 1500rpm to stator, only that case good
induction is covered, & the winding is of genetrally 4 pole.
so according to N=120f/P,
Frequency should be around 50-60HZ.

Answer / atul

it is the just standard which is adopted globally (60hz china, 50hz rest of the world). Design of equipment adopting common standard is easy. the design of equipments based on different freqencies would have been different which is quit difficult.

how many earthing should need for UPS, where its connected

7 Answers   HCL,

---

How to apply 'c' license and also explain what is difference between 'c' and 'b'license.i am also working in one of the private company.i have finished my diploma in 2014 .i have already finished in ITI electrician course.....

0 Answers  

---

Why oil preferred over the air as a cooling medium for high rated transformer?

1 Answers  

---

what is sevice settings for mccb?How can be it setted?

0 Answers   Bhel, Minda,

---

which motors is used in mixies

3 Answers  

---

1 Ton = ? amperes & power. How much power 1.5 TON split AC consumes in an hour at 17 C , 26 C & 28 C (thermostat' temperature).

18 Answers   Aamal, Ashiana Housing, Carrier, College School Exams Tests, Eastin Hotels, Godrej, LG, Medha, Medha Servo, Onida, Orean, PEL, Sahara, Voltas,

---

why is the power generator connected as star earthed or star earthed through reactance and what its features ?

0 Answers  

---

For a spring controlled governer the relation F = ar+b (F is the controlling force, r is the radius of rotation a and b are constants), indicates that the governer is

0 Answers   Caterpillar,

---

what is lightning arester?generaly which type of used in industeries? why its used?

7 Answers   Essar,

---

How many types of Transformers are there?

8 Answers  

---

Explain why machinery used on a.c supply is usually rated in KVA instead of KW?

10 Answers   EEE, Mtandt,

---

IN MCCB AND MCB TERMINATIONS ARE IN-COMING ON TOP AND OUT GOING ON BOTTOM,IF WE TERMINATED INTERCHANGED TOP AND BOTTOM ITS WORKS?

2 Answers  

---