QA Verification & Validation Cases

Sample Validation Cases & Comparison Results

ETAP is Verified and Validated (V&V) against field results, real system measurements, established programs, and hand calculations in order to ensure its technical accuracy.

Each release of ETAP undergoes a complete V&V process using hundreds of test cases for each and every calculation module.

The following are test cases which provides a sample of the type of tests performed for each analysis. Note that all of these cases indicate a very close correlation between ETAP simulated results and field measurements or other programs.

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Arc Flash Analysis

Case No. 1
Comparison of ETAP Arc Flash Results Against Hand Calculated Results Based on IEEE Standards
Evaluation between ETAP Arc-Flash analysis results and hand calculated results based on the equations listed in IEEE standard 1584 2002.

Case No. 2
Verification from ETAP Arc Flash NFPA 70E Results Against Hand Calculations
Evaluation between ETAP Arc Flash analysis results for Open-Air systems rated higher than 600 Volts and hand calculated results based on equations listed in Std. NFPA 70E 2004.
Harmonic Analysis

Case No. 1
Comparison of ETAP Harmonic Analysis Results Against an IEEE Example
Evaluation between ETAP Harmonic Analysis (HA) results and those published in IEEE Standard 519-1992 Example 13.1.
Load Flow Analysis

Case No. 1
Comparison of ETAP Load Flow Results Against a Published Textbook Example
Evaluation between the ETAP Load Flow results and those published in the textbook “Computer Aided Power System Operation and Analysis” by R.N Dhar.

Case No. 2
Comparison of ETAP Load Flow Results Against a Published Example
Evaluation between the ETAP Load Flow results and those published in the textbook “Power System Control and Stability” by P.M. Anderson and A.A. Fouad.

Case No. 3
Comparison of ETAP Load Flow Results Against a Published Textbook Example
Comparison between ETAP Load Flow results against those published in IEEE Std. 399-1997, Brown Book.
Motor Starting Analysis

Case No. 1
Comparison of ETAP Motor Starting with Torque Control Against Hand Calculated Results
Evaluation between the ETAP Motor Starting results and hand calculated values for a Torque control solid-state Motor Starter.

Case No. 2
Comparison of ETAP Motor Starting Results Against Transient Stability
Evaluation between ETAP Motor Starting results and Transient Stability results that have been validated against field measured data and hand calculations.
Short Circuit Analysis - ANSI / IEEE

Case No. 1
Comparison of Short-Circuit Results Against Hand Calculations Based on Application Engineering Information
Evaluation between the ETAP Short-Circuit results and hand calculations developed based on "Short-Circuit Current Calculations for Industrial and Commercial Power Systems” a GE Publication.

Case No. 2
Comparison of ETAP Unbalanced Short-Circuit Calculations Against a Published Example
Comparison of ETAP Short-Circuit Calculations Against a Published IEEE Example Evaluation between the ETAP Short-Circuit results and those published in IEEE Std. 399-1997 Section 7.7.

Case No. 3
Comparison of ETAP 3-Phase Duty Short-Circuit Calculations against Published IEEE Std 399-1997 Example
Evaluation of ETAP 3-Phase Duty Short-Circuit results and those published in 44-bus example from the IEEE Std. 399-1997, Section 7.7.
Short Circuit Analysis - IEC

Case No. 1
Comparison of ETAP Short-Circuit IEC Calculations Against Published Example
Evaluation between ETAP Short-Circuit IEC results and those published in IEC Std. 60909-4 2000 Example 4.
Transient Stability Analysis

Case No. 1
Comparison with Field Measurement Data for Generator Start-Up Condition
Evaluation between the ETAP Transient Stability/Generator Start-Up simulation results and field measurement data for a nuclear generation plant.

Case No. 2
Comparison with I.E.E. Japan (IEEJ) Electrical Power System Standard Benchmark
Evaluation between the ETAP Transient Stability simulation results and I.E.E. Japan (IEEJ) Electrical Power System Standard Benchmark for a transmission system with a synchronous generator and the associated controls elements.

Case No. 3
Comparison with Field Measurements from a Digital Fault Recorder
Evaluation between the ETAP Transient Stability simulation results and actual fault-recorder measurements before and after a three-phase fault in an industrial system.

Case No. 4
Comparison with 9-Bus Multi-Machine System Benchmark
Evaluation between the ETAP Transient Stability simulation results and a 9-Bus multi-machine power system benchmark (Power System Control and Stability by Anderson and Fouad) for rotor angle stability study in a multi-machine transmission system.

Case No. 5
Comparison with PTI PSS/E Simulation Results
Evaluation of simulation results between the ETAP Transient Stability and PTI PSS/E for a sequential motor dynamic acceleration study in an islanded industrial system.
Unbalanced Load Flow

Case No. 1
Comparison of ETAP Unbalanced Load Flow Results Against a Published IEEE 13-Bus Feeder System
Evaluation between ETAP Unbalanced Load Flow results and those published in "Radial Test Feeders" an IEEE Distribution System Analysis Subcommittee publication.

ETAP Validation Cases & Comparison Results (all cases in one document)

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Validation Test Cases

Sample Validation Cases & Comparison Results