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Example 2.24

# Example 2.24 - Problem 2.24 February-01-2008 kVA kW kVAR kW...

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Q Symot P Symot tan acos 0.95 ( ) ( ) := Q Symot 2.884 kVAR = P Total P Light P Imot + P Symot + := P Total 27.773 kW = Q Total Q Imot Q Symot + := Q Total 1.475 kVAR = pf Total cos atan Q Total P Total := pf Total 0.999 = S Total P Total 2 Q Total 2 + := S Total 27.812 kVA = S Old P Total 2 Q Imot 2 + := zero 1 watt := k 0 1 .. := P d zero P Total := Q l P Total P Total j Q Imot + := S old zero S Old e j atan Q Imot P Total := S new zero S Total e j atan Q Total P Total := Problem 2.24: February-01-2008: kVA kW kVAR kW A source supplies power to the following three loads connected in parallel. (1) a lighting load drawing 10 kW, (2) an induction motor drawing 10 kVA at 0.9 power factor lagging, and (3) a synchronous motor operating at 10 hp, 85% efficiency and 0.95 power factor leading. Determine the real, reactive

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