Daily real power and reactive power consumption of a factory
Daily real power and reactive power consumption of a factory are shown as detailed below:
|
Time |
Real power |
Reactive |
|
0800 – 1200 |
1350 kW |
1300 KVar |
|
1200 – 1300 |
1850 kW |
1650 KVar |
|
1300 - 1800 |
1450 kW |
1335 KVar |
|
1800 - 2200 |
1250 kW |
1200 KVar |
|
2200 - 0800 |
1200 kW |
1100 KVar |
Given Tariff E2 – Medium Voltage Peak/Off-Peak Mining Tariff as the followings:
|
For each kilowatt of maximum demand |
RM 29.80/kW |
|
For all kilowatt during the peak period |
31.30 cents/kWh |
|
For all kilowatt during the off-peak period |
17.20 cents/kWh |
The minimum monthly charges are RM 120.00
Peak hour: 08.00 – 22.00, Off-peak hour: 22.00 – 08.00
Power Factor Surcharge:
- 1.5% surcharge of the current bill - for every 0.01 less than 0.85 power factor.
- 3.0% surcharge of the current bill - for every 0.01 less than 0.75 power factor.
Answer the following:
(i) Determine the monthly (30 days) electricity bill of the factory where tariff E2 is employed (excluding the power factor surcharge).
(ii) Calculate the monthly power factor surcharge for the factory.
(ii) Calculate the total electricity bill for the factory.
Please note that RM is Malaysian Ringit,
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