EasyPower performs various types of load calculations at each level in the distribution system, from the load circuits up to the source. Load calculations are performed on each phase.
Connected Load
Connected load refers to the specified or rated load in individual load equipment. For multiple downstream loads, the total loading is calculated using a vector sum, with the active load (W) and reactive load (VAR) being summed separately. Connected load excludes demand factors.
Demand Load
Demand load refers to the specified or rated load in individual load equipment multiplied by the demand factor. For multiple downstream loads, the total loading is calculated using a vector sum, with the active load (W) and reactive load (VAR) being summed separately.
Code Factor Load
This is the NEC method of load calculations. For each category of load, the total apparent power (VA) is calculated using the scalar sum. Demand factors are applied based on the code factors table in File Properties or the device library. The continuous factor is applied to the result. The VA values for individual motors are calculated from the amp values in NEC. The resulting total VA for the various load categories is summed up to obtain the total code factor load at each feeder or bus.
Design Load
Design load is calculated by multiplying the code factor load by the design factor.
Nota: Load calculations are performed for equipment that are in a radial configuration. If you have loops or multiple sources in your system, you can temporarily open switching devices to make the system radial to complete load calculations.
