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"Even an inert material such as copper Network Impedances are a major factor affecting power quality. In general, having a lower impedance means lower losses, having lower losses means loads haven't got the same influence on the source, meaning another more sensitive load will cohabitate on the same source with less damaging effects inflicted upon it. But being fed from lower impedances is not always designed into a product. Combatting losses can also open the way to damage, and "Low Network Impedances" investigates this. The other side of the coin is also investigated being that an increased source impedance may help alleviate damage to equipment, but when it gets too high then the source becomes influenced by high current loads and can affect more sensitive devices. Also, losses are inevitable and "High Impedance Networks" shows the pitfalls of this. It almost appears as if there is a no-win situation. Too high is bad. Too low is bad. Hopefully you've made it this far without diving for the Prozac because the choice is simple - low is good, all round. We end this section on a slightly lighter note with "The Clean Earth Conspiracy". Impedance is an inherent fact of life, but then comes along a data centre designer!
© 01.05.03 |
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