development:calculations
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- | Using the DIN rail meters we do not get power or energy readings, but pulses for every consumed unit. Typically (depends on the meter) we get between 800 and 2.000 pulses for every KWh cosumed. | ||
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- | Measuring the time between two pulses we can calculate the power that was being drawn in the mean time: | ||
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- | power = 3, | ||
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- | e.g.: | ||
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- | p = 3, | ||
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- | rearranging it we can use the same formula to calculate the time between two pulses: | ||
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- | time between two pulses = 3, | ||
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- | e.g.: | ||
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- | t = 3, | ||
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development/calculations.1293321309.txt.gz · Zuletzt geändert: 2011/05/29 13:09 (Externe Bearbeitung)