Answer / j.karthik(cce)

PIR means Pre insertion resistor... This PIR is connects
parallel to the main interruptor..This is used to limit the
current to be interrupted.

why should we india maintain frequency of 50 Hz.

8 Answers  

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How to calculate cable size? How to O&m of vcb?

0 Answers  

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what will be the breaking capacity of MCCB of 1000kVA (6% Impedence) transformer? Voltage being 415V, Power Factor 0.8.

2 Answers   BPC,

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how we identify AC or DC machine at the time of seeing, with out use of name plate?

4 Answers  

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In UPS, battery connections if parallel connection given, what will happen?

2 Answers  

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How can we calculate the current if we have load in KVA and if the load in KW then what formula will be use for calculating the current. please give both the formula for calculating the current.

3 Answers  

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state working of halogen lamp?

0 Answers  

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We have 2 Nos. Transformer with the capacity of 2000KVA and 1250 KVA and currently using only one 2000KVA T/R during operational hours while non- operational hous 1250 KVA T/R also used to reduce T & D losses. Similarly, 2 capacitor bank of 500KVAR and 300 KVAR also installed to balance reactive power. Now problem is around 1000 KW load PF is not maintaning 0.99 as 350 KVAR capacitor is in healty condtion. Now the PF is maintain 0.95 to 0.96.

2 Answers  

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wat is mean by HRC fuse... WHY we choose it...?

3 Answers  

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what is counter poise conductors

0 Answers   IBM,

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How many kinds of E.L.C.B and how to work E.L.C.B

0 Answers   Accenture,

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only some transformers and some generator requires NGR why?

1 Answers  

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