Answer / parth belani

when there is a frequent requirement of some application
(for example, square or cube of numbers) in some program,
if every time we do the calculation, the length of the
program can become very large. In such applications, we use
the look-up table to considerably reduce the size of the
program. Look up tabe is a predefined table in which one
answer is corresponding to every number. for example, 1-->1
2-->4, 3-->9, 4-->16.... will be the look-up table for the
square of a number. Whenever in the program, there is an
application of squaring a number, we don't need to do the
calculation. what we need to do is just to relate that
number with the one against it in the look-up table. We
need to reserve required amount of memory for the look-up
table.

I hv a question regarding power factor improvement just after transformer. I request you to reply me plzz. thank you sir. My friend has a small unit of fabrication. in his factory the main load is a welding machine, lathe machine, grinding machine. this load is not continuous type. now our electricity board has installed 16 KVA, 11000/433 V transformer for our factory. In the energy meter (trivector meter) at LV side of transformer, i hv seen power factor value of 0.15 only when only 3 KW load was flowing. Further electricity board has suggested to install 4 KVAR capacitor at LV side after energy meter. Now my question is that if we permanantly install and switch on 4 KVAR capacitor after energy meter, during some load on transformer and also without any load on transformer, wht will be the power factor shown in energy meter?i dont want to get any penalty by electricity board, so plz suggest me if i can permanantly install and switch on the 4 kvar capacitor or not at LV side of transformer just after energy meter? Thank you again and awaiting for ur positive reply soon.

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