HOW TO FIND THE PRIMARY AND SECONDARY OF TRANSFORMER(IN OFF
CONDITION) USING MULTIMETER? IS IT POSSIBLE FIND BY SEEING
RESISTANCE???

Answer Posted / rahul bawangade

as per working principle transformer , there is no primary &
secondary of transformer . transformer can be work in either
ways.

but if we have to check HV & LV we can do with multimeter .
as per transformer ratio

V1/V2=N1/N2=I2/I1. ................eqn 1
&
R =rho L/A . ...............eqn 2
\
as LV side requirement of current more & no of turns are
less , & cross sectional area of conductor is lare as per
eqn no.1& 2,resistance offered by conductor is less as
compare to HV .

Is This Answer Correct ?    11 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What are the different types of dams?

642


What is icu and ics in Acb and how many time icu or ics passes from breaker?

1040


Actuality I have at home electrical panel with 220v 50hz, and I want to converter from there to 110v 60hz, to wiring on the half of my house. Also I like to keep another half of my house with the original 220v 50hz. What is the best and safety way to do?

1350


What is tranformer differtial?

1457


cc of scorpio?

1770






How to know any size of cable if there are not written on cable? Answer must be theurical not by experience.

1668


In a Impedance Based Distance Relay (Quad Characteristics) - Could there be two different Line Angle(RCA) for Ph-Ph & Ph-Gnd? If So Kindly Let me Know.. Where, What are the advantages of the same?

956


what is solkor relay and which condition it will act?

2849


Difference between control junction box (cjb) and power junction box(pjb)?

2969


how to select overload-relay for perticular motor 1.for D.O.L. starter 2. for Star-delta starter ????

2375


what is KSR type transmission tower? What is LSR type transmission tower?

4615


how to calculate sizing of NGTR (Transformer rating,Loading resistor value and Current rating of resistor) and what is the X/R ratio. Details : 11kV,Capacitance 1.73532 micro farads,40kA for 1sec.

1728


is the value of inductance depends upon the value of thitha in doubly excited machine??

1557


Tell me about ur past electrical maintanence job

1424


A 15 kw squirrel cage motor having a maximum efficiency of 90% on a continuous full load has temperature rise of 42 degrees celcius after 30 min and 52 degrees celcius after 1 hr under the above operation conditions. a) calculate its final steady state temperature rise on continuous load and the heating time constatnt. b) if the motor is operated on a short load for 9 min estimate its temperature rise. c) calculate the maximum overload that can be applied on a short, 9 min rating so that the temperature rise is the same as the final steady state temperature rise on continuous load.

686