Answer Posted / glenn gross
a transformer conveys energy by a change of magnetic flux. The change is essential. No change- no induction in the secondary. As such it is an AC only device and because of it magnetic core properties it is only efficient at frequencies it is designed for- like 50-50 hertz, or 400 hz or 1 mhz. Step out of the efficient frequency band and its useless
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
In the formula : Knee point voltage = Burden X alf / class, Please inform what is alf? regards Shashidhar M.R.
3Cx240 & 3Cx300 sqmm Al. cable from lv side. What is the calculation for this cable??
A 1F capacitor is charged to 100V initially. A 1H inductor is connected accros the capacitor througha a switch. The current in the circiut when the switch is closed is____
Explain about technical and non technical losses in distribution system?
list of tests to be carried out at manufacturers end while purchasing a step up transformer of 11kv to 66kv ,2MVa Capacity.
why do we carry out winding resistance test?
Thumb rule of cable size(rm>30 rm)X multiplying factor=ampere
How should i design a 1ph & 3 ph transformer. Kindly let meknow all steps and formulaes related to design from scratch.
Explain bypass capacitor?
Explain Energy and Power signals?
why electron produce magnetic field when it is in motion?
how to test and calculat the head and discharge in borewell compressor
electrical knowelge
full form of flry b
why booster transformer is used in sumpners test conducted on transformer????