DEW Extension modules available to assist in system design and analysis include:

Capacitor Design - calculates the size and location of capacitors needed to satisfy power factor and voltage magnitude specifications.

Feeder Performance - computes system performance parameters over an entire year, saving the results to a spreadsheet file.

Phase Balancing - predicts the best phase move, the next best move, etc.  Can be performed at both start of circuit and tie switches.

Phase Prediction - uses customer kWH and circuit SCADA measurements to predict phasing of laterals.

Protection-Coordination - automatically locates protection and coordination problems within a circuit. Automatically searches the database to find list of devices that will coordinate, displays zones of protection, and can update circuit protective devices from within application.

Reliability Analysis - predicts changes in reliability as a result of circuit modifications and evaluates improvements in reliability due to the addition of distributed resource generation.

Statistical Analysis of Lightning Data - calculates lightning density within specified corridor around every line in the DEW model; may be used to predict outages due to lightning

DEW Extension modules available to support system operations and maintenance include:

Circuit Download - enables transfer of circuits between server and client machines.

Outage Display - displays actual outage statistics on circuit model for visual analysis and allows analysis of sectionalizing problems that are resulting in lower reliabilities. Also, can be used to predict where additional sectionalizing devices are needed or where coordination is lacking.

Generic Reconfiguration - optimizes recovery from component failure outages by re-configuring sectionalizing devices to isolate the failed component and restore service to applicable system loads in accordance with user-established load priorities and system interdependencies.

Radial Reconfiguration - isolates failed component and attempts radial load restoration, with reconfiguration limited to the associated feeder instead of the entire system. This streamlined application is well suited for real-time scenarios, where the speed of restoration is prioritized over the evaluation of all possible alternatives available for a system-optimized solution, as done in Generic Reconfiguration.

Switch Plan Analysis - enables the evaluation of a planned switching sequence, determining
potential system/loading impacts prior to implementation.

 

DEW Extension modules available for analyzing/optimizing the utilization of Distributed Resources include:

DER Adoption Analysis - analyzes the impact of new and existing distributed energy resources on the system by customer class. Can be used to evaluate impacts on primary and secondary systems from projected growth of solar and wind generation, energy storage, and plug-in electric vehicles.

DER Interconnection Studies - enables user to perform semi-automated studies of interconnection requests, which are aligned with IEEE 1547 standards and can be group processed to evaluate combined effects of multiple DER interconnections.

DR Control - evaluates use of distributed generators to eliminate system overloads or low voltages.

DR FuseChecker - calculates time varying fault currents due to distributed resource generators and predicts if the additional fault currents will affect fuse protection.

PhotoVoltaic Measurements Loader - enables distributed resources to retrieve local measurement data for solar incidence directly from the NREL database, as a function of geographical location and installation parameters.

DEW Extension modules available for enhancing user interface options include:

Circuit/Schematic Viewer - enables user to generate and view a schematic representation of the modeled system, in either an orthogonal or skeletal diagram view.

Google Earth Viewer - enables user to overlay the DEW model onto a Google Earth view of the geographical location.

Visualization - enables user to quick-pick select application results for immediate display in the summary dialog.

Voice Recognition - enables user interface with voice commands.

DEW Extension modules available for analyzing secondary distribution systems include:

Secondary Fault Analysis - determines the resulting currents at a distribution transformer due to faults on secondary side.

Secondary Flicker Analysis - analyzes flicker tolerances at a distribution transformer due to secondary motor loading.

Other DEW Extension modules available include:

Batch Power Flow - enables batch running of power flow analyses on selected systems from database.

Build Circuit File - enables user to build or update DEW model from import of input file data.

Harmonic Analysis - enables user to concurrently analyze any number of harmonic sources by automatically creating a separate graphical model for each harmonic.

Scenario Builder - enables user to incorporate the output from one application run as input for a subsequent application run, i.e. use the output from a phase balancing run as input scenario for running capacitor design.

Time Series Measurements - provides automated time series analysis of SCADA measurements.