Noble M20 Dual, Руководство по установке

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lights and especially compact fluorescent light.
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Harmonics from traditional power supplies (not switch mode supplies) that power various
electronics, noted above.
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Dirty electricity and harmonics from motor speed controls, light dimmers and solid state
switches. The latter includes SCR’s and Triacs.
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Harmonics from electrical motors.
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Broadband Dirty electricity from electric arc welders. This is severe, intense dirty electricity.
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Dirty electricity from induction heaters. This is severe, intense dirty electricity.
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Dirty electricity from certain Radio Frequency (RF) transmitters.
2.0 DNA Products
Many of the DNA products as simple to install and use. They plug into a standard AC outlet. These
are "parallel" devices that provide a path-of-least resistance to the DE. They capture the DE and
turn it into a small amount of heat. These parallel devices work to reduce DE in the frequency
range, from roughly 5 kHz to 500 kHz In the lower end of this range (near 5 kHz) these parallel
devices are not performing as well as they perform at higher frequencies – just by the nature of their
design. Examples of these parallel products are: MxDNA, RxDNA-V2, PxDNA.
In addition, there are true "line filter" products that we offer that provide excellent reduction of DE
at the frequencies of typical inverter switching regulators. Please continue to read for a discussion
on these.
3.0 Alternative Power, A Source Of Dirty Electricity
3.1 Dirty Electricity Generation By Inverters
With the growing installation of alternative energy sources in recent years, there has been a
significant increase in the DE in residential, commercial and industrial settings.
The most common alternative energy sources are photo-voltaic solar arrays and wind mills, aka
wind turbines. These devices usually produce direct current (DC). Most, or all, of the appliances
that the users have, will be alternating current (AC) appliances, at 50 or 60 Hz (cycles per second).
To accommodate this disparity between the DC available from the alternative source (solar and
wind) and the AC required by the user's appliances, a device known as an Inverter is used. It is an
electronic system that switches the DC on-and-off very quickly and thereby generates AC (for use
by the appliances).
These Inverters are typically switch-mode-power-supplies and as a by-product they generate DE.
These Inverters generate 60 Hz AC (in the US), but they do so by switching the DC on-and-off at a
fundamental switch frequency, such as 16 Khz. As a result, the 60 Hz AC coming from this Inverter,
will be "polluted" with the 16 Khz (in this example) switch frequency. In addition there will be
numerous harmonics of the 16KHz present. For example:
2 x 16 KHz = 32 Khz
3 x 16 KHz = 48 Khz
4 x 16 KHz = 64 KHz
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