Managing Multiple Sources, Bus Couplers and Synchronization in ElectricalOM NEC-IN
Introduction
One of the standout features of ElectricalOM NEC-IN is its capability to handle multiple sources for key components. Whether you are working with a Switch Board, Junction Box, Transfer Switch, Transformer, Converter, or UPS, ElectricalOM NEC-IN allows you to efficiently connect and manage multiple supplies, whether from various sources or different distribution nodes. This guide provides a detailed explanation of how to configure multiple sources for your system components, focusing primarily on the Switch Board.
Connecting Multiple Sources to a Switch Board
In ElectricalOM NEC-IN, connecting multiple sources to a Switch Board is critical in designing complex electrical systems. To begin this process, a switch board must first be connected to an initial source. Afterward, the user can add another source by right-clicking on the switch board (either from the Schematic Module or the System Tree Section) and selecting the Install supply from... option. This will open the Supply Selection window, where all available supplies are listed.
From here, the user selects the desired source and clicks OK. ElectricalOM NEC-IN will then connect this new supply to the switchboard, complete with switches. The user can further manipulate the switches by double-clicking on an open switch or by using the right-click menu. Note that once a switch is closed, it cannot be reopened unless manually adjusted. Only one supply will be active at any given time unless parallel operation is configured.
Adding a Generator to the Switch Board
ElectricalOM NEC-IN also provides the option to insert a generator directly into the system. By selecting Switchboard functions and using the Install immediate supply option, users can seamlessly integrate a generator into the switch board setup. This can be a practical solution for backup power scenarios.
Configuring Switchboard Coupling
Coupler sections can be added to switchboards to enable more intricate system designs. To do this, select the switchboard and choose either Install couple section before or Install couple section after from the Switchboard functions menu. ElectricalOM NEC-IN will place a coupler section next to the switchboard and automatically insert a switch between them.
The coupler section behaves like a switchboard and can accept additional supply connections. These connections are managed through switches, which can be opened or closed by double-clicking. When a switch is opened, specific parts of the system will be deactivated, depending on which source is active.
Decoupling is also possible using the Decouple option. This action requires that the switch be open, and ElectricalOM NEC-IN will warn the user if a closed switch is selected for decoupling.
Parallel Source Operation
ElectricalOM NEC-IN excels at modelling parallel source operation, which is critical when designing systems that require redundancy or load sharing between multiple sources. The system supports parallel operation for components like Switchboards, Junction Boxes, and Transfer Switches.
To initiate parallel source operation, the user must first ensure that the active source is one of the sources to be run in parallel. Then, the user can select Parallel source operation... from the Functions Menu, which will display a list of available sources. The user can select multiple sources to be run in parallel, and upon clicking OK, all selected sources will become active, with their corresponding switches set to a closed position.
Each source in parallel operation will maintain identical settings, with the exception of their names. If the user wishes to remove a source from parallel operation, the same menu can be used to deselect the source, and ElectricalOM NEC-IN will remove it from the parallel setup.
Conclusion
The software’s capability to handle multiple sources and parallel operations provides users with robust options for designing and managing complex electrical systems. Whether dealing with backup generators, transformers, or multiple feeder circuits, ElectricalOM ensures that users can configure their systems to meet the highest standards of reliability and safety. By mastering these features, electrical designers can create versatile, efficient, and fail-safe power systems tailored to any project’s needs.