Answer Posted / ashish yadav

IN A AITCRAFT SPACE SAVING IS IMPORTANT, BY USING A 400 HZ FREQ THE SIZE OF MOTOR, GENERATOR, ALTERNATOR & TRANSFORMER SIZE CAN REDUCED BECAUSE SPEED IS DIRECTLY PROPORTIONAL TO FREQ AND INVERSELY PROPORTIONAL TO FLUX THERFORE FLUX IS INVER TO FREQ.HIGHER THE FREQ LESSER THE FLUX AND LESSER THE CORE SIZE MEANS LESS WEIGHT AND SIZE.
ALSO 400 HZ IS A CRITICAL FREQ ABOVE WHICH CONDUCTOR SHOW SKIN EFFECT MEANS START RADIATING, THIS AFFECT THE RADIO SYSTEM PERFORMANCE.

various transmission tower like .,D tower ,K.C.O tower ,C.C.O tower,K.C.R tower ,C.C.R tower ,H.C.O tower in different tons.

3309

---

List the power rating of any 5 important electrical appliances used in houses.

2053

---

We have Diesel generator of 200KW. fuel consumption is always same,even connected light load or full load. Is it right?

2167

---

How to arrange a hous hold earthing system to keep minimum earth resistance( below 7ohms).

2179

---

why do we need to use 3c+3e cable, normally i select only 3c+e cable and i think it is enough. pls explain the usefull of 3e cable ( in this project the earthing system is well done)

2472

---

how to check three phase motor torque value?

2374

---

when elecromagnatic waves are propogated in a wave guide?

2010

---

how to calculate distance between busbar supporters for LT panel, what are the factors influencing in this design

5321

---

from where the self excitrd induction generator get the power?why is the voltage regulation is poor of seig?

2282

---

i have a 1500kVA transformer what is the kWH meter i need to use?

1791

---

define reflection method?

1949

---

How to calculate VCB rating for 33KV ,25 MW Power line?

1750

---

what is maxemo work permit procedure

2201

---

We have 250 KW x 2 motors, which are load from 25% to 100% varying load in every minute , so how can we compansate the power factor. pl give your opinions on the above subject.

1875

---

What are approaches to tackle sedimentation problem of reservoir?

1023

---