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#1 kuan

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Posted 22 September 2002 - 10:46 AM

Q1. How to measure by calculation and by meter the inrush current flow in series reactor?

Q2.Where the harmonics come from?Because this capacitor bank is located at HTSWGR panel and supply to motors etc.

Q3.Oil type reactor explode may be due to not enough capacity of the reactor itself?.

Q4.If I use dry type reactor instead of oil type reactor is it more practical?

Q5.What is the best preventive maintenance for this Capacitor bank panel?

Thank you for your help.

#2 marke

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Posted 24 September 2002 - 08:08 PM

Hello kuan

QUOTE

Where the harmonics come from?Because this capacitor bank is located at HTSWGR panel and supply to motors etc.

Harmonics are always present on the supply and com from many different types of equipment connected to tne supply. Some harmonics are introduced by iron cored items such as motors and transformers, but by far the greatest source of harmonics are electronic rectifiers as found in inverters and switched mode power supplies. Arc furnaces are another large source of harmonics. These harmonics are caused by the non sinusoidal current drawn by the connected load. If the supply impedance is very low, then the effect of harmonic currents on the supply voltage is reduced.

QUOTE

Oil type reactor explode may be due to not enough capacity of the reactor itself?.

Correct, if the reactor is overloaded, it will overheat.

QUOTE

If I use dry type reactor instead of oil type reactor is it more practical?

You still have the problem of overloading the reactor if it is not big enough. The oil filled reactor can use smaller components internally because the oil helps to increase the effective cooling area. For large units, oil filled are smaller. For small units, there may be little advantage.




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