WHAT IS BASICS TO SELECTION OF 11 kv Trasformer, send any
calculation sheet for selection of transformer

Answer Posted / anuya

Basic & most important factor is transformer capacity which
can be derived by calculating all connected loads at
downstream. It will give the KVA rating.
Primary-secondary voltage ratio & vector group.
Environmental conditions like temp, etc. Application
Indoor/outdoor.
Cooling type requirement will deside the Xmer will be Oil
cooled or dry type unit.
Impedance of the Xmer.
Load type.

Is This Answer Correct ?    6 Yes 5 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

1. The DC generaror,s induced output emf is connected with a DC motor(as load). when increasing the load of the motor by using brake drum or any way. what are the parameters will changes in both motor and generator(voltage, current, resistance, frequency, speed, torque, power, flux etc...) 2. Similarly for AC generator and AC motor 3. similarly if using DC batteries instead of DC generator, What happens?

1694


can anybody send me syllabus of rrb section engg (electrical). and also send previous question pepar...

1570


how to calculate percentage impedence at 75 deg C at normal tap

1804


Why 9KV surge arrester having 7.65KV of MCOV?

1109


which is chemical used as in ro water what is difference betweeen multi grade filter&dual media filter

1638






how oil in the MOCB was reduced compared with OCB? what are the features of the MOCB?

2349


Define ampere

712


what is the difference between c power and U power acb breaker

5284


how to calculate slip ring induction motor stator and rotor currents??

1737


How you calculating the 30 Hp 3 phase AC motor of power what size of cable is used for this motor?

1155


solar inverters was not connected to the nuteral link .this nutwral possible to any other systems

1353


WHAT DO YOU MEAN THE DIFFERENT TYPE OF CURVES OF RELAY LIKE STANDARD INVERSE, VARY INVERSE, NORMAL INVERSE, LONG INVERSE ETC....

1542


An active element is one which a. Supplies energy b. Absorbs energy c. Supplies energy and convert energy from one form to another

1649


Good morning: I'm looking for some informations about the OLTC or the LTC: I wont to know what the function of the tie-resistor in during the operation of reversing/coarse operation Cordially

1570


what is the purpose of shading ring or shading coil in electrical equipments.

3963