Answer Posted / vinod kumar

Variac and Autotransformer are the trade names of variable
auto transformers -- standard name is variable auto transformer

where as auto transformer is a constant output for a
constant input device

What is grid collapse? what is the reason for it?

2129

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why the starting voltage drop in a cable needs to be limited?what is percentage of the voltage drop allowed during starting?

1816

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Could you measure voltage in series?

1276

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What is the difference between the transmission line and distribution line?

1166

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for hipot test on 33kV busbar, we will test on 70 kV or 56kV, what is the acceptable leackage current?

1167

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how to calculate sizing of NGTR (Transformer rating,Loading resistor value and Current rating of resistor) and what is the X/R ratio. Details : 11kV,Capacitance 1.73532 micro farads,40kA for 1sec.

2276

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what is the difference between c power and U power acb breaker

6415

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Define settling time.

1167

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what is the clear formula to calculate cable size for a load

1964

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what is ps impedance test

2131

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what is ic 01,ic 06 ?is it types of cooling?

4316

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Why there are some equipment(i.e:TV) that using 2-pin plug instead of three? What happen if there is current leakage? Are we going to get electric shock??

2192

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What is the difference between electronic regulator and ordinary electrical rheostat regulator for fans?

1101

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we have a 2.5hp Starite electric motor water pump,the elec motor burned out,we need to replace starting capacitor(old capacitor specs erased),what microfarad rating capacitor do we need? 110-125V

1870

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I need bhel previous year quetion papers for electrical engineering department.I searched but i could not find out

2084

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