What is the criteria in selecting Air circuit breaker(ACB) & Moulded case circuit breaker(MCCB) for a particular range?

3 Answers   DLF,

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In one village i have seen Earthing transformer's earthing line was also connected to the Transformer body to ground the transformer,can it be possible to maintain 0Volt reutral line this way?

2 Answers  

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In 110V DC supply,if a closed circuit gets open, How can we identify the voltage which is measured after the resistor(4KOhm) which is open with negative.it shows 55V +ve when measured, also the actual positive source is 55V +ve .Because there is no voltage drop in open circuit. How can we identify whether this is the voltage which is series with the resistor or the DC source direct +ve.

1 Answers   GE,

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How much energy save vfd if motor run on 50 Hz (full speed)

3 Answers   Reliance,

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in transformer input is d.c signal which type of emf is induced

1 Answers  

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how can see the ac indoor or out door ac which Tr

0 Answers   Wipro,

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IN A HT CABLES i.e. 1.9/3/3 kv, what is the meaning of 1.9 and 3.3.

1 Answers  

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What does Transformer vector connection Dy11y5 means?

1 Answers  

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How dia computation perfomed in cold rolling mills .

0 Answers  

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why and how fault current flows through ground?

1 Answers  

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when qty of cable being purchased is not sufficient according to the standard,what should the inspector do to ensure its quality according to the standard?

0 Answers  

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What is the Difference Between choke & ballast

3 Answers   ABB, ICS Integrated Computer Solutions,

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