A Diesel station supplies the following loads to various consumers:

Industrial consumer = 1500 kw   Commercial establishment = 750 kw

Domestic power = 100 kw    Domestic light = 450 kw

If the maximum demand on the station is 2500 kw and the number of kwh generated per year is 45 x 105, determine the diversity factor and load factor.

a. 1.12, 20.5%

b. .97, 31.2%

c. 1.53, 65.7%

d. 21.1, 50.2%

Single phase transformer 10kVA, 2200/220v, 50Hz has the following
configure:
R1=4Ω, X1=5Ω, Rfe=25kω, XM=4kω, R2=0.04 Ω, X1=0.05 Ω
The transformer operates at rated voltage and feeds rated load
with a power factor of 0.8 inductive. To be identified:
1. The voltage fluctuation and the degree of efficiency.
2. The excitation current of the transformer.
3. The energy it consumes in a 24-hour period (in kWh) if it works under a load of 16
hours a day and the rest he works without load.

Which of the following statements are true about inflation?

a) It occurs when the overall level of prices increases.

b) Some prices may fall even when most others rise.

c) Some prices affect consumers more than others.

d) When in the 2-4% range, it can be a sign of a healthy economy.