Why the brushes used in dc machines are made of carbon not from other metal?

3 Answers  

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where the protection CT in neutral of transformer be located, before bifurcation or after bifurcation and why.

2 Answers  

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How to decide cable tray size?

0 Answers  

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In my home i am getting too much electricity bill (more than 4000) but I am very much sure that we are not consuming that much. How i can check this ?

6 Answers  

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How to justify this statement ??? "Capacitors in series provide less capacitance but higher voltage breakdown rating for the combination"

0 Answers  

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what is RR number Abbreviation energy meter

2 Answers   Trimax,

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what is difference between elr and R eartl realy.

0 Answers  

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What is the difference between Isolator annd Circuit Breaker.

21 Answers   ABB, Lanco, NTPC, Power Grid, RInfra,

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why we can stote dc? why we cant store ac?

0 Answers  

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How do performance buccholz relay testing in power transformer

1 Answers  

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While HT line put on to activate ACB in low tention panel VCB tripping instantly.why it happens

0 Answers   Engineering,

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What is the Different Between Breaker and One and half breaker.

2 Answers  

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