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Protection and Conductor Calculations

 

Automated Distribution & Motors Calculations


DraftLogic Electrical’s patent-pending Automated Distribution & Motors Protection and Conductor Calculations provide building systems designers quick and accurate completely automated expert system selection of protection and conductors for their entire project.  DraftLogic Electrical removes the tedious table-searching part of protection/conductor/kVA selection but still gives the designer complete control over the protection and conductors used throughout the distribution network of their project. 
 

Reports Always Use Fresh Data

DraftLogic Electrical recalculates all loads and resulting protection and conductors required on all distribution equipment & the conductors for motors each time a report is requested by the user that includes any such equipment.   Transformer kVA is also calculated.  By recalculating in this manner, the report is assured of having accurate data to rely upon each time it is run.

The calculations start by calculating the wattage load for each circuit connected to the branch circuit panels and work their way up through the power distribution network.  The entire power distribution network is thus refreshed for each report that relies upon it.  One of the ‘users’ of the data, the Single Line Diagram, shows all the distribution equipment relationships & the calculated protection, conductors, protection type, grounding/bonding conductors, feeder lengths, transformer kVA, and large motors.
 

Designer and Electrical Code Control Results

The completely automated calculations take a comprehensive set of data into account, all either driven by electrical code requirements or designer selection: 
·    electrical code to apply (CEC or NEC)
·    ampacity corrections due to conductor congestion
·    ambient temperature modifiers
·    feeder safety factor to apply
·    user settings for voltage drop allowable & calculate for conductor upsizing effects where allowable voltage drop is exceeded
·    conduit fill limitations to set conduit size
·    wire sizes you want to allow
·    diversity settings (CEC) or demand factors (NEC)—can be applied the same over the entire project or specified at each individual panel
·    minimum bus and protection desired by designer
·    threshold to use aluminum conductors
·    threshold to use fused disconnects
·    threshold to apply parallel feeders
·    apply bonding conductors to all conduit or in-slab only
·    bonding conductor to match conductor material (CU/AL) or always copper
·    in-slab conduit type
·    Section 8 adjustment (CEC only)
·    conductor routing for each distribution member (overhead versus in-slab)
·    transformer full load or actual load used for sizing distribution network feeding each transformer and its parents
·    motor protection and conductors sized based on MCA, MOCP, FLA, HP, or wattage—whichever is available and highest priority
·    future/existing wattage—for the designer to use on renovation jobs to represent existing wattage on a panel or to provide a buffer of distribution capacity for future distribution needs
 

Suite Derating and Reporting Automatically Occurs

When the project includes apartments or suites, the suite derating rules for each of CEC and NEC as applicable are applied; complete suite derating schedules are automatically produced as part of the panel schedules reporting (suite load calculator, meter center schedule, suite derating schedule for any new aggregation of suites).
 

User Overrides to Exercise Your Design Discretion

Every distribution device (panels, transformers, etc.) and motor has attributes on it that allow you to exercise ultimate control over the protection and conductors that are selected for it, regardless of what DraftLogic Electrical calculates. This complete set of overrides allows the designer to specify protection amperage, protection type, conductors, bonding/ground, bus, kVA, and distance to parent of their liking to be used instead of calculated values.