Question

1) Use the data given in Example 2.1 and assume that the feeder has the peak loss of 72 kW at peak load and an annual loss factor of 0.14. Determine the following:

a. The daily average load of the feeder:

b. The average power loss of the feeder

(Example 2.1
Assume that the loading data given in Table 2.1 belongs to one of the primary feeders of the No
Light & No Power (NL&NP) Company and that they are for a typical winter day. Develop the idealized
daily load curve for the given hypothetical primary feeder.
Solution
The solution is self-explanatory, as shown in Figure 2.3.)

2000 1800 1600 1400 ︵ 1200 1000 800 600 400 200 12 AM 2 68 10 12N 2 46 8 10 12 PM Time (h) 100 100 Street lighting load (kW) 300 400 600700 1000 600 Residential load (kW) 800 800 800 800 300 500 400 200Commercial (kW) FIGURE 2.3 The daily load curve for Example 2.1 Table 2-2 Idealized load data for the NL&NP'S primary feeder Load, kW Strcet lighting Time Residential Commercial 12 A.M 100 200 200 100 100 100 200 200 100 100 100 200 200 200 200 200 300 100 500 10 500 500 1000 1000 12 noon 500 1000 1000 1200 1200 500 1200 600 200 100 700 800 100 800 100 100 1000 1000 400 10 t00 800 200 100 200 600 12 P.M 100 300 200

Answer 1

500 aoo 2oo 617 a 0 0 lo 0 o.oooooo! 으 0_ 으 ol o O 0 |0000| 0 2 Noon o0 110 0 O bop 30 o Ib 50 Io 600 3 oo dead 2 q

Daily average landーー2.G100-11 12°Skyn スy Aonal deass Lact Pouaer les at hea 0 1 2 O% 0。