What You Will Need Page (Electric Optimization Wizard)
Displays all the variables used in the optimization calculations. In a subsequent step, you will be given the opportunity to accept default values for these variable or specify new values. The analysis options that you choose will determine which variables are used in the analysis calculations.
| Setting | Description |
|---|---|
| Load Power Factor (%) | The ratio between real power and apparent power. The closer the factor is to 1.0 (or 100%), the more efficient the system. In Bentley OpenUtilities Designer, the Load Power Factor is expressed as a percentage. Limited to a value between 0 and 100. A typical setting is 90%. |
| Load Multiplier (per unit) | An additional multiplier used by some utility companies. Limited to a value between 0 and 2.00. A typical setting is 1.0. |
| Maximum Allowable Voltage Drop (%) | The maximum allowable percentage drop in the nominal voltage of the system. Separate values can be specified for primary and secondary facilities. Limited to a value between 0 and 5.00. Typical settings for primary systems are 2.5% to 3.5%; a typical setting for secondary systems is 5.0%. |
| Maximum Initial Conductor Loading (%) | The percentage of the conductor load rating that is to be used as the ceiling for initial loading (to allow for future load growth). Separate values can be specified for primary and secondary facilities. Limited to a value between 0 and 100. A typical setting is 60% for primary facilities, 80% for secondary. |
| Allowable Line Overloading (%) | The percentage by which the conductor load rating can be safety exceeded for a limited duration. Limited to a value between 0 and 200. A typical setting is 125%. |
| Allowable Transformer Overload (%) | The percentage by which the transformer KVA rating can be safety exceeded for a limited duration. Limited to a value between 0 and 200. A typical setting is 150%. |
| Maximum Flicker-Multi-Service (%) | The maximum percentage by which the nominal voltage of a multi-service system is allowed to dip due to additional loads imposed by the startup of large motors (such as AC units). Limited to a value between 0 and 10.00. A typical setting is 5.50%. |
| Maximum Flicker-Single Service (%) | The maximum percentage by which the nominal voltage of a single-service system is allowed to dip due to additional loads imposed by the startup of large motors (such as AC units). Limited to a value between 0 and 10.00. A typical setting is 7.00%. |
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| Cancel | Closes the Electric Optimization Wizard. |
| Help | Opens the online Help topic for this page of the Electric Optimization Wizard. |