Which is the best between SCADA & PLCC & Why ?

2 Answers   ABC,

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What are the material used for inductance coil?

0 Answers  

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What's is the difference between IVT and CVT?

1 Answers   CPCL,

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What is the exact minimum vale of voltage between an earth and netural which can damage or can do malfunction of the electronic equipments ? If this is mentioned in any book, pl.give reference.

0 Answers   Bhushan Power Steel,

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What are the advantages and disadvantages of negative feed back?

0 Answers  

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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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How delta connection in the primary of distribution transformer reduces harmonics?how delta connections reduces harmonics?Please answer me...Hope that question is correct.

0 Answers  

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From what on-site components does the HT panel monitoring the bus-bars in a 11kV system take inputs?

0 Answers  

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What is sensitivity of a measurement?

0 Answers  

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What is the diff. between single compression and double compression gland

0 Answers   ASL,

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What is the possible cause for failure of lightning arrestors in outdoor substation under normal condition

0 Answers  

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Briefly define and explain the following different types of Pulse Amplitude Modulation (PAM) with some examples. i) 2-PAM ii) 4-PAM iii) 8-PAM iv) 16-PAM v) Quadrature Amplitude Modulation (QAM)

0 Answers   UOG,

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