what is voltage,current,restance,. what is single phase&three phase motar. what is basic electrical 'farmoulas. what is defirens quetions of electrical maintenance.

2 Answers  

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We know that, in case if there is a faulty insulation,or sc, the current is bypassed to earth through the earth wire that has low resistance.Actually, what will happen to that current that flows through gnd?In that case,if we come in contact with that faulty appliance, wont that current flow through us as we form a closed path by standing in gnd?Is grounding a safety measure?

3 Answers  

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What is a DC series motor?

0 Answers   Ericsson,

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what is the use of power transformer in GSS.

0 Answers   College School Exams Tests, DLF, TCS,

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what are the applications of TIG welding

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can i use 10 mfd + 6 mfd instead of 15 mfd capacitor in single phase motor as running capacitor

3 Answers  

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What is the difference between Surge protection device and Lighting arrester?

6 Answers  

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is it possible to turn on the single phase star delta on delay timer using 24 v dc ?

0 Answers   L&T,

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How does CT can measure the high value DC current?

4 Answers  

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i am using auto transformer for starting of induction motor to provide reduse voltages...but the principle of a tansformer according to definition"which transform energy to on circuit to another circuit with constant power and constant frequency". so if i am using reduse voltage then current obsely hige because power is same.but we use auto transfarmer for starting of induction motor to give low current.but here according to definition we are giving hige current.

0 Answers  

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why we have to particulary use ACB for below ratings,even available of MCB,MCCB with that range ?

2 Answers   QRG Health City, Siemens,

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how to increase or decrease speed in DC shunt motor by DC convertor

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