SA Graan November 2013 - page 70

Are you using more electricity
than you need on your farm?
Electrical systems could be unnecessarily pushing up your operating costs.
Variable Speed Drives (VSDs) can help you reduce energy usage and improve
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Variable Speed Drives regulate electrical motor speeds to
match energy demand with system loads, thereby reducing the
amount of electricity they consume. In most cases, motors run
full speed, regardless of the actual output required, while many
are oversized and rarely get to meet the demand they are
designed for.
Oversizing or over delivery is generally corrected
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Variable Speed Drives can help you meet demand effectively
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business activities on your farm.
The fans in green houses, broilers and dryers. The vacuum
pumps, cold and freezer rooms, and bulk milk tank compressors
in your dairy. Cold storage and air-conditioning. Your hammer
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effective and immediate way for farmers to save electricity
and respond to the energy constraints facing the agricultural
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“Farmers can quickly recoup investments in technologies such
as Variable Speed Drives with savings on monthly electricity
costs. Rising electricity tariffs could quicken your return on
investment. Strategically committed to support farmers in their
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Farmers can contact the Eskom Customer Contact Centre
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information on the funding programmes and assistance from
an Energy Advisor in their region.
Issued by Eskom Integrated Demand Management November 2013
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