how step up transformer step up the voltage and what is the
reason behind it?

Answer Posted / ankit

Emf equation of transformer is
E=4.44f*flux*N
E directly propotional to no. Of turn in winding. So high no. Of turn volatage is high

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Can the output voltage of a rectifier be greater than the input AC voltage without the use of any voltage multiplier in the circuit??please provide the explanation too..

1660


what is power factor ? how we can calculate the low power factor and amount of capacitor for improve that low factor ?

1104


what is ground fault in ACB?

1661


what is feeder bay?

1132


During Testing of Maintenance Free Earthing, How deep should be the Spikes of Earth Test Meter should be inserted in the soil(one spike is 15 Meter & Other spike is 30 Mtrs away from the Main Earth Electrode. Because, recently, we observed that when spike is inserted 3-4 Inch in the earth- results are better, If spike is inserted 1 feet deep than results are increasing.

1457






if i am in front of transmission line how to know that current direction without any equipment

1274


where can i get vijaya electricals limited in hyderabad interview auestions can u give me the website address plz

1655


What are test values for an 63 KVA and 100 Kva Distribution Transformers for the following typical tests 1)Magnetic balance 2)Short circuit test 3)Open Circuit test 4)Vector group confirmation test .please give me the standard values for all the above tests.

2286


How to justify this statement ??? "Capacitors in series provide less capacitance but higher voltage breakdown rating for the combination"

1468


which motor have relatively high power factor and what is reason for have high pf? 1.capacitor run motor 2.shaded pole motor 3.capacitor start motor 4.split phase motor

1500


Why arc quenching is used in Diode ?

1583


As per the Anchor capstan motor specification, full load current is 200A. starting current is 1750 A and acceleration time is less than 8 seconds. Please guide for selection of cable size.

1445


While testing a ZCT what parameters have to check or measure?

1906


How you will determine the volume of oil in a particular Distribution transformer.

1453


i have attended the interview on 4th June,08 at Kolkata in IOCL, can anybody tell me what is its result

1561