Answer / g.sridhar

Because it depending up on the load current material melting
point & resistivity

explanation:In loads occurs short circuit(or) high starting
current the conductor(thin wire) temperature is increase for
that certain stage when the material reach that melting
point the conductor (thin wire) melt & disconnect the circuit.

To test Transformer we give HT side 440V to see wheather that it is producing 17.6V on LT to verify Voltage ratio is correct or not but when we give the 440V voltage to LT side then what will happen to HT voltage ?

3 Answers   Aditya Birla,

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WHAT IS THE FUNCTION OF RCCB

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What is stepper motor. What is its uses?

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How to Preparation of online test

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I WANT TO INSTALL LIGHTING ARRESTOR ABOVE 20 FEET HEIGHT INDUSTRIAL BUILDING. NOW IT WAS 15 FEET HEIGHT HOW MUCH DISTANCE IT WILL COVER & HOW TO CALCULAT THE DISTANCE COVER BY THE ARRESTOR

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In power point wiring,often,we use less size of earth wire compared to phase & neutral wire and we use big size pin in pug top. how is it justified? can we use small size cable for earthing?

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How to select the cable size for the given load ?Pls explain the Formulae

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Draw the wave shape of armature current in a generator subjected to a sudden three phase short- circuit at its terminals. Define various reactance of generator from this wave shape.

0 Answers   VECL,

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Is there any problem ,if R-Y-B voltage is constant , but the air compressor taking one phase high current.what is possible causes.the said compressor is very new.(55kw).

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what is the difference between the alternator used in hydro and thermal power plants??

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if there is nutral in phase why we use earthing wire and grounding? even at fault condition the fault current flows to neutral (it is a lower path)

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what is the earthing condition between earth & phase.

3 Answers   ABB,

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