I try to check the three phase voltage in multimeter, in 125A isolator switch incommer. first i touch R phase, and then i touch Y phase using multimeter, the moment i touched, it blasts and that moment i got blindness. multimeter selector position is correct(750V AC MODE AND RED PROBE WASS IN v AND BLACK PROBE WASS IN COM. MODE. COULD ANYBODY GIVE ANSWER FOR THIS TO AVOID FURTHER ACCIDENTS PLEASE?

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Sir, Please tell me that how I will calculate the efficiency of rectifier. Because input is ac and output is dc. Is it right to put two unlike signal together.

2 Answers  

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How will u calculate wire size according to current rating?

2 Answers   Global Computer,

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What Happen When We provide Dc Supply to Ac Motor

6 Answers  

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WHAT MEANT BY SEVICE FACTOR?

2 Answers  

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How many types of fault occur in a 3-phase power system?

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Why the tank of transformer is made rectangular not circular??

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an amazing situation was faced when an alive distribution panel with 415 volts and carrying almost 200Amps has become short and this metal cubical showing 220 volts against neutral and earth. to redress any confusion i checked the panel with help of single 200watts test lamp which also glowing with max.intensity b/w neutral & metal body of DB. amazing situation is that i hold the DB firmly more than once with necked foot means without insulated shoes but not received any electrical shock. whereas our all running gen sets neutral points also proper grounded and this short DB was completely earthed , this is beyond my understanding . any body explain how is it possible . our running gen set neutral also grounded firmly

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what are the interview question asked in wind mill about electrical

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why ct mensioned 0.5/5p20 plese any reply to me

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how squirrel cage & slip ring motor works? how they differ from each other

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What is the power factor,apparent power,reactive power and formula of power factor.

3 Answers   MNC,

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