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

star delta advantage and disadvantage?

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Where the ON LOAD TAP CHANGER is provided in the setp up transformer?

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During regenerative breaking= A rotating magnetic field is reversed B slip is positive C torque is positive D slip is negative

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