To: Miss Norhafiza Bt Mohamad
From: Ruhidayu Bt Mohd Yusof
Date: 13 April 2014
Salam,
For this week, the data for fluorescent tube light has been tabulated. And the result will be compare with TNB tariif.
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| Power Cost from Mini Ammeter |
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| Discrepancy power cost for each day |
To calculate the discrepancy power cost for each day, the formula as shown below:
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| Discrepancy power cost formula |
To calculate the total data power cost for each day, the formula as shown below:
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| Total data power cost |
To calculate the power cost by using TNB tariff, the formula as shown below:
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| Power cost TNB Tariff |
After that, the all data will be tabulated in one table.
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| Table for fluorescent |
The graph for TNB tariff power cost and total data power cost as shown below:
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| Graph for fluorescent |
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| Graph for percentage of comparison |
The percentage is less than 1%, therefore the data from mini ammeter is reliable to use.
P/s: LED data will be collected.
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