Network Analysis
10Pages

ANSI and IEC standards are used for calculating short circuit current for parts of the network below main panels, subpanels, UPS, and phase adapters. Device duty calculation compares the calculated fault current from these networks for evaluation of protective devices and automatically generates critical and marginal alerts based on user-defined alarm limits. > Save hours of tedious hand calculations and take the guess- work out of short circuit studies by automating the process with multiple calculation and result analysis tools within ETAP. The Short-Circuit module makes it easy to go...

U 1-phase & panel systems device evaluation > IEEE C37.04 Standard Rating Structure for AC High-Voltage Circuit Breakers Rated on a Symmetrical Current including Supplements: IEEE C37.04f, IEEE C37.04g, IEEE C37.04h, IEEE C37.04i Uʊ 1-pole / 2-pole short circuit device duty for 1-phase > IEC 62271-100 High-Voltage Switchgear and Controlgear, Part 100:High-Voltage Alternating-Current Circuit Breakers U Determine maximum & minimum short circuit fault panel / UPS systemsUnbalanced L-G, L-L, & L-L-G faults analysis currents Calculate ʽ cycle, 1.54, & 30 cycle balanced > IEC 62271-200...

U Automatically determine the Arcing Fault Clearing Time > Uʊ Instant determination of the flash protection, prohibited, restricted, & limited approach boundaries according to NFPA 70EDetermine individual arcing current contributions ETAP Arc Flash Analysis brings you new and enhanced capabilities which allow for faster and easier performance of arc flash hazard analysis. Identify and analyze high risk arc flash areas in your electrical system with greater flexibility by simulating various incident energy mitigation methods.Arc Flash is a completely integrated module that solves multiple...

Generator Decrement Curve U Customizable energized electrical work permits Uʊ Consider Generator AC Decay & Decrement Curve U Custom data sheets to communicate arc flash study automatically for individual synchronous generatorsConsider AC Motor short-circuit current decay parametersUser-interface for defining hazard categories (NFPA Uʊ U 70E 2000 & 2004) or customize based on your safety program requirementsGenerate IEEE 1584 & NFPA 70E look-up table Uʊ Time varying fault clearing time calculation based on system bolted SC current decay Perform arc flash calculations for both 3-phase & > Mo...

U Option to update initial conditions Uʊ Phase-shifting transformers U Auto-adjust LTC / regulator settings > Uʊ Power factor correction U Saves solution control parameters for each scenario With ETAPʒs advanced Load Flow module, you can create and validate your system model with ease and obtain accurate and reliable results. Built-in features like automatic device evaluation, summary alarms / warnings, result analyzer, and intelligent graphics make it the most efficient Load Flow program available today.ETAP calculates bus voltages, branch power factors, currents, and power flows...

ETAP Load Flow Result Analyzer is a time-saving tool that compares and analyzes multiple reports in a single view. You can compare the results of general information about a project or more specific information such as the load flow results for buses, branches, loads, or sources. U Newton-Raphson, fast decoupled, & accelerated Gauss SeidelGenerator governors with isochronous or droop mode Uʊ U Generator exciters with AVR or Mvar / PF controllers Uʊ Transformer load tap changers (LTC / regulators) U Advanced solution techniques for fast convergence Uʊ Multiple loading conditions U Multiple...

Motor Starting Time Slider: M otor Startin g Time Slider : View time domain results graphically View time domain results g raphicall y > Dy Dynamic Modeling: namic Modelin g: Complete modeling of machines and connected load C omplete modelin g o f machines and connected loa d Accelerate Multiple Motors: A cce l erate M u l t i p l e M otors: Start multiple motors using unlimited sequence of events Start multiple motors using unlimited sequence of events >

U Graphical display of time-varying results Uʊ Multiple motor / load acceleration / stop & sequencing U Auto-alert abnormal conditions with marginal or Uʊ Switch on / off static loads & capacitors critical levelsGraphically display buses with marginal or critical U Open / close MOVs with five operating stages Uʊ U Include transformer LTC / voltage regulator action voltage levelsComprehensive plots with operation details Uʊ Generator / grid operating parameters & load profiles U > User-Defined Alerts: Use r-D efi ned Al ert s : Automatically flag marginal and overstressed devices...