HOW TO CALCULATE THE VT SIZING?

0 Answers   L&T,

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who is invented transforner (230v).......

2 Answers  

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difference between generator and alternator

0 Answers   Havells,

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When we use air circuit breaker, it has O/L protection ,time delay SC protection, Instataneous SC protection & ground fault protection. They all have some setting range. But what is the suitable/allowable setting for the above protection which will be safe for the equipment? For example-O/L protection setting have a range of (0.4,0.45,0.5,0.55,0.6,0.65,0.7,0.8,0.9,1.0)xIn Time delay SC protection have a range of (1.25,1.5,2,3,4,6,8,10,12)xIn Time delay setting is 0.02,0.1,0.2,0.3,0.4 Instataneous setting is fixed to 20xIn Gound fault setting is given 100A,300A,600A,900A,1200A This setting are for 2500A ACB. So what will be the basic allowable setting for the above protection? is there any formulae to calculate this<

0 Answers   Lupin,

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Why power genaration in India is at 50HZ while America its 60HZ

0 Answers   TATA,

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We have received supplies of the ordered material. payments against the supplies also released. Where ST paid 4% against form C. Meanwhile it has been observed that 25% of material supplied was defective. Please suggest whether the issuance of C form from our side would be stopped till settlement of liabilities.

0 Answers  

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How many points does a Circuit can have?

0 Answers  

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what is ferranti effect?

3 Answers  

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Is it possible to obtain 480v or 550v in single phase output by giving the input to 230v to a single phase torodial type transformer without using a stepup transformer?

0 Answers  

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Is itnecessary to use capacitor in an Fluorescent Tube Light Fixtures? Why? What if not capacitors are not included?

2 Answers  

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How to find synchronous motor speed formula Ns=120f/P ?....

2 Answers   Cranedge,

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What is the required value while doing the megering

1 Answers  

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