Product Features

Build complete digital models of AC and DC power systems.
The Network symbol represents a subnetwork, for large hierarchical systems.
Show or hide each component's name, annotation and data block, and the protective device symbols.
Draw components with ANSI or IEC symbols, and rotate and size each one.
Group, zoom, pan and rotate.
Libraries of cables, overhead lines, transformers, relays, fuses, LV breakers and trip units, reclosers, overload relays, batteries, PV modules and reliability data.
English and Chinese user interface.

Power Flow: snapshot load flow.
Short Circuit: AC faults (3-phase, line-to-ground, line-to-line, line-to-line-to-ground) by the classical, ANSI/IEEE and IEC 60909 methods; DC pole-to-pole and pole-to-ground faults with IEC 61660-1 time curves and capacitor discharge.
Motor Starting: voltage drop when motors start.
Equipment Sizing: cables and transformers.

Protection & Coordination: time-current curves from the device libraries, with coordination checks between device pairs (IEEE 242 coordination time intervals).
Arc Flash: system-wide incident energy, arc flash boundaries and PPE categories. AC to IEEE 1584-2018 or the Lee method (NFPA 70E); DC by the maximum power or Stokes-Oppenlander method (NFPA 70E).
Harmonic Analysis: frequency scan, THD, and limit checks against IEEE 519-2014 and GB/T 14549 limits from the library.
Cable Ampacity: IEC 60287 for duct banks, directly buried cables and conduits, and cables in air; Neher-McGrath for cables and conduits in air.
Battery Study: sizing and discharge, with duty cycles from the loads.
Sag & Tension: ruling span, ice and wind loading, by NESC-style loads or GB 50545-2010 wind.
Power Flow time series: load shapes and solar irradiance over time.
Motor Starting dynamics: induction and synchronous motors, with direct-on-line, wye-delta, autotransformer, soft and VFD starting.

Transient Stability: generators with exciters, governors and stabilizers (such as SEXS, ST1C, GGOV1 and IEEEG1), induction and synchronous motors, induction generators, and motor undervoltage relays.
EMT Simulation: switching transients such as capacitor switching, transformer inrush with saturation curves, and fault transients.
Control Block Simulation: time-domain simulation of control block diagrams.
Continuation Power Flow: the path to voltage collapse.
Optimal Power Flow: minimum generation cost, losses, control actions, load shedding or VAR investment, within network limits.
Contingency Analysis: N-1 outages of branches and generators, and your own multiple-outage cases, each solved by a full AC power flow.
Distribution Reliability: minimal cut sets with IEEE 493 (Gold Book) failure data.
Composite Reliability: generation and transmission together, by state enumeration or Monte Carlo, with EENS and interruption cost (ECOST).
Generation Adequacy: capacity outage probability tables or Monte Carlo, with LOLE, LOLP and EENS.

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