Answer / gaurav tripathi

auto transformer is the transformer in which only one
winding is used and output is found by changing the tapping
of the winding

Answer / chella

autotransformer is a tybe of single winding transformer
which electrical energy transfered from primary to secondary
winding by electrical as well as mutual induction

Answer / shafi

Auto transformer is electrical device which provides variable output voltage for a fixed input voltage.

Answer / thanigai1984

Auto Transformer is a single winding transformer.. we change the voltage by increasing or decrease the voltage...

How to run 1ph motor(230 VOLTS its full load amps is 4.5 ampa))with 480 volts main(we didn hav neutral)Thn we go for step down transformer.Our load 10 amps,so we conisder this amps in primary are secondary side

1 Answers  

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is high voltage or high current is danger

16 Answers   L&T,

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When we use PT in HT Panel why the ratio is 11Kv/√3/110v/√3 please explain briefly with suitable formula?

1 Answers  

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Why MCCB is Getting tripped sometimes when there is no load in the Midnight ?

0 Answers  

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how to get more than 1000 ohms between 2 earth pits ?

2 Answers   HCL,

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What is different between MCB & MCC & isolator switch

1 Answers   Standard Chartered,

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why a three phase induction motor cannot run at synchronous speed ?

7 Answers   RUET,

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What is d role of reactive power in power system??How it produce & consume?

5 Answers   ABB,

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what is raw power & normal power

2 Answers  

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what is the difference between effective earthing and resistive earthing?

3 Answers   REL,

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what is exact meaning of CT core saturation or simply saturation of core.

1 Answers  

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If we want the fan to consume less electricity at low speed, what do we have to do?

1 Answers  

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