HOW TO MEASURE AC VOLTAGE BY USING GALVANOMETER?

1 Answers  

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what is MCCB?

8 Answers   NTPC,

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what is the differance of acb and mcb and mccb

12 Answers   MacAir, MDS,

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Why is back emf used for a DC motor? Highlight its significance.

0 Answers   ABB,

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What is the Polarisation index value ? (pi value)and simple definition of polarisation index ?

15 Answers   Essar,

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for 5KW resistive load can anyone please suggest me whether to go for UPS/Inverter or Generator depending upon cost calulations

0 Answers  

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The electrical energy required to raise the tempreture of a given amount water is 200 kwh. If the heat losses are 20%, the energy required is?

0 Answers  

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Why transformer neutral earthing? What is advantages?

3 Answers  

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How transformer neutralshould earthed ? Transformer neutral connected to earth mat in substations, right or wrong ?

4 Answers  

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Difference between low impedance and high impedance Restricted Earth Fault

0 Answers  

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Dear Friends, I have a 500KVA transformer supplying whole factory having 3 phase and single phase mixed loads. Power room has ammeters connected via CTs for individual phase. Now I know that readings shown on meter for each phase say R,Y and B are line currents. But when I want to know the total on transformer do I need to add the currents of all three phases readings shown on meter or value for anyone phase will give me the correct power load on transformer for that point of time. 2. If ammeter shows unbalanced readings for R,Y, B phases say 150, 250 and 300 respectively so can I assume that 150A i.e average of 3 will be the 3phase load currents and remaining will be 1phase currents. Please clarify my doubt.

4 Answers  

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how many type of of electrical fuse please explan?

9 Answers  

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