9Load Models
The loads on a distribution system are typically specified by the complex power consumed. With reference to Chapter 2, the specified load will be the “maximum diversified demand.” This demand can be specified as kVA and power factor, kW and power factor, or kW and kvar. The voltage specified will always be the voltage at the low-voltage bus of the distribution substation. This creates a problem because the current requirement of the loads cannot be determined without knowing the voltage. For this reason, some form of an iterative technique must be employed. An iterative technique is developed in Chapter 10 that is called the “ladder” technique or the “backward/forward sweep” technique.
Loads on a distribution feeder can be modeled ...
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