Answer / sidharth

An autotransformer doesn't provide electrical isolation between its windings like an ordinary transfomer. hence, the maximum limit for voltage transformation in an autotransformer is 3:1. beyond this value, it is safer to use a 2 winding transformer.

Answer / iftikhar

It is unsafe for stepping down a high voltage to low voltage
in an auto transformer, if an open circuit develops in the
common portion of winding then full primary voltage will
appear across the load which could be dangerous to both the
persons and the equipment.

Answer / dipak

An auto transformer can could fail in such a way as to have
a primary voltage secondary and such condition cause a
damage or injury.

Answer / gourav bapna

autotransformer is a single winding transformer with unity
ratio.that implies a 1:1 ratio which cannot step up voltage
from a low voltage source.

Answer / bhigesh

al type transformers are step up tramsformer.its aim to
decrease voltage at the keys of independent voltage inverter

what are protective device needed to power a 360W ,50hz,240v,single phase,0.65 pf universal motor

1 Answers   L&T,

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What is contract demand in solar system?

0 Answers  

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why efficiency of generator is greater than motor?

2 Answers  

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there are 3 transformers each of 1500 kva and one transformer of 1000kva for a 11 floor building . total otgoing kw is 4066 kw. i need an extra 260 kw .is there any provision for that? what is the max kw that can be connected with these transformers?

2 Answers  

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what is spill current?

4 Answers   Adani, NPCIL,

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Why we are not placing c.B 's btwn generator and transformer.? what happens when generator gets disconnected from transformer when it is running @ full load?

3 Answers   Areva,

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i m electrical diploma holder i want to do plc $ Scada some body tell me which insitute is best for me near chandigarh

0 Answers  

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1 Answers   Mukand,

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0 Answers   ABB,

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a transformer can beb used as aload?give discription

2 Answers   Esses Eltech Systems,

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what happens when back charging of transformer is done for longer period

1 Answers  

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why we used to transmitt the power at higher voltage why not at lower voltage

8 Answers  

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