Answer / p.v.loganathan

basicaly five types of transformer:
* step up transformer
* step down transformer
* potential transformer
* current transformer
* isolation transformer

Answer / sanjeet swarnakar

step up transformer
step down transformer
auto transformer

Answer / vinodkumar ks

Ther are 3 types of transformer?

1. CORE TYPE
2. SHELL TYPE
3. BERRY TYPE

Answer / bhanu pratap

depending on application
1.Distribution
2.Power
3.Control
4.Auto
5.Isolation
6.Instrument potential
7.Instrument current
depending on construction
1.core type
2.shell type

Answer / vin

(i) According to core,

1. Core type.

2. Shell type.

(a) Simple Shell,

(b) Distributed Shell.

(ii) According to winding.

1. Two winding (ordinary type).

2. Single winding (Auto type).

3. Three winding (Power transformer).

(iii) According to phase.

1. Single phase.

2. Three phase.

(iv) According to arrangement of coils.

1. Cylindrical type.

2. Disc type.

(v) According to use.

1. Power Transformers.

2. Distribution Transformers.

3. Instrument Transformers

(a) Current transformer,

(b) Potential transformer.

(vi) According to type of cooling

(a) Natural cooled.

(i) Natural air cooled.

(ii) Oil immersed natural cooled.

(iii) Oil immersed natural cooled with forced oil circulation.

(b) Forced air cooled.

(i) Oil immersed air blast cooled.

(ii) Oil immersed air blast cooled with forced air circulation.

(c) Water cooled.

(i) Oil immersed water cooled.

(ii) Oil immersed water cooled with forced oil circulation.

Answer / azim

1)power 2)current 3)instrument 4)pulse 5)Flyback
6)step-up 7)step-dowm

Answer / saurabh gupta

Types of transformers:
a. Distribution
b. Power
c. Control
d. Auto
e. Isolation
f. Instrument potential
g. Instrument current

Answer / aniket singhwal

a)According to Voltage
1)Step-Up transformers
2)Sttep-down transformers
3)Auto transformers
C)BASED ON THEIR CONSTRUCTION OF CORE
1)CORE TYPE
A)Air Core transformers
B)Iron Core transformers
C)Ferrite Core transformers
2)SHELL TYPE
d)further based on phase as,
1)1-phase
2)3-phase

Answer / nayeem basha

the types of transformers are

1.single phase transformer
2.three phase transformer
a.core type
b.shell type
3.auto transformer

Answer / deepak

A)power transformer
B)distribution transformer

Classification based on construction:

Core Type
Shell Type

Classification based on number of phases:
Single Phase
Three Phase

Classification based on Voltage:
Step-up
Step-down

what is formula of dc current and resistance.

2 Answers  

why the generating / transmitting voltage is in the order of multiples of 11(ie 11kv,22kv,33kv......)

1 Answers  

how a resistor resists to flow the current?how an inductor oppses the sudden change in current?how a capacitor opposes a DC voltage.

0 Answers   Hindustan Unilever Limited,

Can anybody tell me how to calculate(formula) earth flat size(for copper and aluminium).

3 Answers  

what is the purpose of battery tap voltage.

3 Answers   ABB, Crompton Greaves,

what is the powerfactor

5 Answers   GVK,

Which type of questions well asked. ?

0 Answers  

why humming sound occured in h HT transmission line

3 Answers  

Tell me about Simence PLC 'BLOCK'.How many types and what for.

1 Answers   Gurit,

how can we find thae value of capacitor for single phase motor. what is difference between starting capacitor and running capacitor.

0 Answers  

Between AC generator(alternator) and DC generator which can be designed for high voltage and why?

1 Answers  

Hi,My name is ranms i want to know the machine vibration related problems.post me if any body knows. 1) Possible causes of machine horizontal vibration high? 2) Possible causes of machine vertical vibration high? 3) Possible causes of machine axial vibration high?

1 Answers