Answer / umesh ghore

step up &step down

Answer / kravi

they are mainly two types,but they dived in to uses ie
1) Power t/f
2) Signal matching t/f

Answer / hafiz mehroz khan

there are two main types of transformers.
1)step up transformers
2)step down transformers

Answer / alarabi

The typws of transformers are
1- power transformers
2- voltage transformers
3- current transformer

Answer / akanksha sharma

types of transformer depends on different factors
1.on the basis of no. of turns
a.step up
b.step down
2.on the basis of ac supply
a.single phase.
b.three phase.
3.on the basis of their construction
a.shell type.
b.core type.
4.on the basis of cooling
a.oil filled
b.oil filled air cooled
c.oil filled air blast type
5.other distribution
a.Power transformer
b.Distribution transformer

Answer / bhavanan

 By power capacity: from a fraction of a volt-ampere (VA) to over a thousand MVA;
 By frequency range: power-, audio-, or radio frequency;
 By voltage class: from a few volts to hundreds of kilovolts;
 By cooling type: air-cooled, oil-filled, fan-cooled, or water-cooled;
 By application: such as power supply, impedance matching, output voltage and current stabilizer, or circuit isolation;
 By purpose: distribution, rectifier, arc furnace, amplifier output, etc.;
 By winding turns ratio: step-up, step-down, isolating with equal or near-equal ratio, variable, multiple windings.

Answer / shivendra mohan srivastava

In the construction base-
* core type transformer
* shell type transformer
* berry type transformer

In the their winding base-
* step-up
* step-down

Answer / gowrisankar

BASICAIY transformer differance bitween two typs first one
praimary and secondry trans former

Answer / qadeer

dry type tf
cooling type tf
oltc type
octc

Answer / shivnath kumar

There are following types of transformer
1-core type
2-shell type
3-berry type
4-step up
5-step down

Dear sir, we are getting voltage fluctuations suddenly for 2 or 3 minutes again it becomes normal. we checked each and every connection some times we are getting 110 volts like that from earth to neutral again it is reducing we are getting supply from 45 kva DG set give earthing properly.

3 Answers   Triveni,

How transformer neutralshould earthed ? Transformer neutral connected to earth mat in substations, right or wrong ?

4 Answers  

Why power factor should not be in leading (capacitive) mode of any load.

3 Answers   GE,

Basic laws governing motor and generator

2 Answers  

Difference between SFU & FSU with advantantages & drawback?

1 Answers  

WHY THE SYNCHRORONOUS MOTOR IS NOT SELF STARTING, AND WHY THE STATOR AND ROTOR IS COUPLED?

3 Answers   Essar, GCUF,

Why star delta starter is preferred with induction motor?

0 Answers  

In synchronous generators field is rotor and armature is stator.Can we take the output at the rotor in case of synchronous generator by the dc excitation on the stator?

2 Answers  

what is the size of cable for 15kw motor and 85 meter cable length using with vfd

0 Answers  

how LT meggar works

1 Answers   Essar,

How we can find the regulation of transformer?

2 Answers  

how to calculate cooling requirement of datacentre from electrical load?

0 Answers