Electrical Transient Analyzer Program (ETAP) is an electrical networkmodeling and simulation software tool^[1] used by power systems engineers to create an 'electrical digital twin' and analyze electrical power system dynamics,^[2] transients and protection.^[3]

Dr. Farrokh Shokooh is the founder and current CEO of ETAP. While Dr. Shokooh worked at Fluor Corporation^[4] he was made in charge of selecting electrical engineering software. Realizing a lack of comprehensive, efficient and intelligent power system analysis software, the vision of Electrical Transient Analyzer Program (ETAP) was born. Dr. Shokooh left Fluor Corporation to develop ETAP and founded Operation Technology, Inc (OTI) in 1986. OTI dba ETAP is an ISO 9001-certified electrical power system design and automation software company headquartered in Irvine, California, with international offices in India, UAE, KSA, Brazil, Mexico, France, UK, Malaysia and China.

Schneider Electric took controlling stake in ETAP on November 16, 2020 to spearhead smart and green electrification. ^[5]

ETAP was developed for utilization on MS-DOS operating system and intended for commercial and nuclear power system analysis ^[6] and system operations. OTI has been developing ETAP for 30 years by providing the comprehensive and widely used enterprise solutions for generation, transmission, distribution, industrial, transportation, and low-voltage power systems.

ETAP is the most powerful software in the area of Electrical Power systems. Using this software you can design and analyse your power system from the source of power all the way to the loads connected to it. Download etap 12.6.5 for free. Education software downloads - ETAP by Operation Technology, Inc and many more programs are available for instant and free download.

OTI has generated numerous innovations and patents throughout the years, including the first digital twin driven predictive simulation and automation platform; the first Intel-based energy management system based on the MS-DOS platform in the 1990s; the first comprehensive advanced user interface and situational awareness system for transmission, distribution, and generation operators; the first advanced intelligent load shedding system in the mid-2000s; and the adoption of big data technology and no-SQL database technologies.^{[citation needed]}

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Today, OTI provides electrical design to operation on a single platform, open automation, network management, and optimization solutions worldwide. The company offers supervisory control and data acquisition (SCADA) systems, energy management systems (EMS), generation management systems (GMS), advanced distribution management systems (DMS), substation automation systems (SAS), data warehousing (historian) analytics, distributed energy resource management systems (DERMS), situational intelligence systems, and individual software and hardware products for electrical system operations.

Power system simulation requires an electrical digital twin consisting of a power system network model that includes system connectivity, topology, electrical device characteristics, historical system response and real-time operations data in order to make offline or online decisions. ETAP power engineering software utilizes an electrical digital twin in order for electrical engineers and operators to perform following studies in offline or online mode:

• Load flow or power flow study^[7]
• Short circuit or fault analysis^[8]
• Protective device coordination, discrimination or selectivity^[9]
• Transient or dynamic stability.^[10]
• Substation design and analysis^[11]
• Harmonic or power quality analysis^[12]
• Reliability^[13]
• Power system stabilizer tuning^[14]
• Optimal capacitor placement^[15]
• Motor starting and acceleration analysis^[16]
• Voltage stability analysis^[17]
• Arc flash hazard assessment^[18]
• Ground loop impedance calculation^[19]
• Battery modeling and simulation^[20]
• DC Arc Flash Hazard Assessment^[21]

Software applications[edit]

ETAP software applications include:

• Power system design for ANSI and IEC networks^[22]
• Electric supply substation simulation^[23]
• Monitoring and feeder analysis^[24]
• Simulation of distributed photovoltaic power^[25]
• Study of a DC network^[26]
• Open-phase fault analysis^[27] - Multiple events across the nuclear power industry have highlighted the need for greater understanding of what happens during an open phase fault. These open phase events have occurred on the high side of offsite power supply transformers and have involved loss of one or two phases.
• Diesel power plant analysis^[28]
• Combined cycle power plant analysis^[29]
• AC/DC hybrid system simulation^[30]
• Wind turbine design and analysis^[31]
• Harmonics in railway power systems^[32]
• Rural distribution system analysis^[33]
• Distributed generation protection^[34]
• Reliability assessment of renewable energy systems^[35]
• Wind and PV penetration studies^[36]
• Microgrid power system design^[37]
• Power system analysis of High-Rise Buildings^[38]

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References[edit]

1. ^'Electrical Network's Modeling & Simulation Tools: The State of the Art'.
2. ^Hase, Yoshihide (December 2019). Power system dynamics with computer based modeling and analysis. p. 1112. ISBN978-1-119-48745-6.
3. ^'Electrical Transient Analyzer Program (ETAP)'. United States Department of Veterans Affairs. United States: United States Department of Veterans Affairs.
4. ^'The Leading Electrical Power System Analysis & Operation Software ETAP - Operation Technology, Inc'. The Silicon Review. Retrieved 2019-09-28.
5. ^'Schneider Electric invests in Operation Technology, Inc. ('ETAP') to spearhead smart and green electrification | Schneider Electric Global'. www.se.com. Retrieved 2021-03-23.
6. ^Shertukde, Hemchandra (January 29, 2019). Power systems analysis illustrated with matlab and etap. PRODUCTIVITY Press. ISBN9781498797214.
7. ^Soni, C. J.; Gandhi, P. R.; Takalkar, S. M. (April 2015). 'Design and analysis of 11 KV distribution system using ETAP software'. 2015 International Conference on Computation of Power, Energy, Information and Communication (ICCPEIC): 0451–0456. doi:10.1109/ICCPEIC.2015.7259526. ISBN978-1-4673-6525-3.
8. ^Zeggai, A.; Benhamida, F. (February 2019). 'Power flow and Short circuit of 220 kV Substation using ETAP'. 2019 Algerian Large Electrical Network Conference (CAGRE): 1–6. doi:10.1109/CAGRE.2019.8713172. ISBN978-1-7281-1823-9.
9. ^Pathan, M.; Shah, A. (August 2017). 'Co-ordination of protective relays for 16MW load system using ETAP'. 2017 International Conference on Energy, Communication, Data Analytics and Soft Computing (ICECDS): 2222–2231. doi:10.1109/ICECDS.2017.8389847. ISBN978-1-5386-1887-5.
10. ^Bashir, Adnan; Jabbar Khan, Rana A.; Junaid, Muhammad; Mansoor Asghar, M. (2010-06-15). 'Etap software based transient, ground grid and short circuit analyses of 132 kv grid'. AIP Conference Proceedings. 1239 (1): 25–30. Bibcode:2010AIPC.1239...25B. doi:10.1063/1.3459758. ISSN0094-243X.
11. ^Zeggai, A.; Benhamida, F. (February 2019). 'Power flow and Short circuit of 220 kV Substation using ETAP'. 2019 Algerian Large Electrical Network Conference (CAGRE): 1–6. doi:10.1109/CAGRE.2019.8713172. ISBN978-1-7281-1823-9.
12. ^Alsaaq, Mohammed (2014-08-06). Power System Harmonic Analysis Using Etap. Lap Lambert Academic Publishing GmbH KG. ISBN9783659584312.
13. ^Gómez, Cristhian A. Giraldo; M, Rafael Franco (April 2012). Análisis de Confiabilidad Usando El Software Etap (in Spanish). EAE. ISBN9783659003141.
14. ^Saber, A. Y. (December 2014). 'Power system stabilizer tuning using swarm based optimization in ETAP'. 2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES): 1–5. doi:10.1109/PEDES.2014.7041959. ISBN978-1-4799-6373-7.
15. ^Chopade, P.; Bikdash, M. (March 2011). 'Minimizing cost and power loss by optimal placement of capacitor using ETAP'. 2011 IEEE 43rd Southeastern Symposium on System Theory: 24–29. doi:10.1109/SSST.2011.5753771. ISBN978-1-4244-9594-8.
16. ^Zhu, H.; Liu, X.; Mastorakis, N. E. (September 2014). 'The Simulation Analysis of Motor Startup Based on the ETAP Platform'. 2014 International Conference on Mathematics and Computers in Sciences and in Industry: 245–248. doi:10.1109/MCSI.2014.36. ISBN978-1-4799-4324-1.
17. ^Ullah, M. A.; Qaiser, A.; Saeed, Q.; Abbasi, A. R.; Ahmed, I.; Soomro, A. Q. (March 2017). 'Power flow voltage stability analyses and remedies for a 340 MW nuclear power plant using ETAP'. 2017 International Conference on Electrical Engineering (ICEE): 1–6. doi:10.1109/ICEE.2017.7893436. ISBN978-1-5090-1241-1.
18. ^Khan, A.; Aman, M. M. (April 2018). 'Investigation of the effects of critical incident energy parameters using ETAP® to reduce arc flash hazards'. 2018 1st International Conference on Power, Energy and Smart Grid (ICPESG): 1–6. doi:10.1109/ICPESG.2018.8384488. ISBN978-1-5386-5482-8.
19. ^Liu, H.; Mitolo, M.; Qiu, J. (March 2014). 'Ground-Fault Loop Impedance Calculations in Low-Voltage Single-Phase Systems'. IEEE Transactions on Industry Applications. 50 (2): 1331–1337. doi:10.1109/TIA.2013.2272285.
20. ^Sheng Chen; Saber, A.; Khandelwal, T. (July 2016). 'General battery modeling and simulation using non-linear open circuit voltage in power system analysis'. 2016 IEEE Power and Energy Society General Meeting (PESGM): 1–5. doi:10.1109/PESGM.2016.7741929. ISBN978-1-5090-4168-8.
21. ^Weimann, Corey S.; Kerestes, Robert J.; Grainger, Brandon M. (2020). 'Comparative Analysis of Experimental DC Arc Flash Results to Industry Estimation Methods'. IEEE Open Journal of Industry Applications. 1: 181–193. doi:10.1109/OJIA.2020.3031768. ISSN2644-1241.
22. ^Prabhu, J. A. X.; Sharma, S.; Nataraj, M.; Tripathi, D. P. (March 2016). 'Design of electrical system based on load flow analysis using ETAP for IEC projects'. 2016 IEEE 6th International Conference on Power Systems (ICPS): 1–6. doi:10.1109/ICPES.2016.7584103. ISBN978-1-5090-0128-6.
23. ^Khan, Faisal; Usjict, Editor. 'Electric Supply Substation Simulation using ETAP Software'.Cite journal requires |journal= (help)CS1 maint: extra text: authors list (link)
24. ^'Analyses and monitoring of 132 kV grid using ETAP software'. S2CID30563725.Cite journal requires |journal= (help)
25. ^Wang, Wen Bin; Xiong, Jun Jie (2015). 'Simulation of Distributed Photovoltaic Power Connecting to Grid Based on ETAP'. Advanced Materials Research. Retrieved 2019-09-29.
26. ^'Study of a DC network with ETAP - CAPSIM'. www.capsimulation.com. Retrieved 2019-09-29.
27. ^'ETAP addresses open-phase faults - World Nuclear News'. www.world-nuclear-news.org. Retrieved 2019-09-29.
28. ^Klungtong, S.; Chompoo-inwai, C. (October 2016). 'Power flow monitoring and analysis for 24.6 MW at 6.9 kV bus Diesel Power Plant(DPP) using ETAP'. 2016 International Conference on Smart Grid and Clean Energy Technologies (ICSGCE): 307–312. doi:10.1109/ICSGCE.2016.7876074. ISBN978-1-4673-8903-7.
29. ^Reddy, D. S.; Kumari, C. S. (January 2017). 'Transient Stability Analysis of a Combined Cycle Power Plant Using Etap Software'. 2017 IEEE 7th International Advance Computing Conference (IACC): 510–515. doi:10.1109/IACC.2017.0111. ISBN978-1-5090-1560-3.
30. ^Xiaran Chen; Guorong Zhang (May 2016). 'Harmonic analysis of AC-DC hybrid microgrid based on ETAP'. 2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia): 685–689. doi:10.1109/IPEMC.2016.7512368. ISBN978-1-5090-1210-7.
31. ^Afifi, S. N.; Wang, H.; Taylor, G. A.; Irving, M. R. (September 2013). 'Impact of DFIG wind turbines on short circuit levels in distribution networks using ETAP'. 2013 48th International Universities' Power Engineering Conference (UPEC): 1–4. doi:10.1109/UPEC.2013.6714976. ISBN978-1-4799-3254-2.
32. ^Yan Pang; Yonghai Xu (October 2016). 'Analysis and treatment of harmonic in power network with railway based on ETAP software'. 2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC): 1424–1429. doi:10.1109/APPEEC.2016.7779724. ISBN978-1-5090-5418-3.
33. ^Zala, Y. (August 2017). 'Comparative study and simulative analysis of high voltage and low voltage distribution systems for rural agricultural loads: Simulation using etap software'. 2017 IEEE International Conference on Smart Energy Grid Engineering (SEGE): 46–50. doi:10.1109/SEGE.2017.8052774. ISBN978-1-5386-1775-5.
34. ^Yadav, S. K.; Sharma, N. K.; Choube, S. C.; Varma, A. (October 2017). 'Optimal coordination of overcurrent relays in power systems for reliability assessment under the presence of distributed generation using ETAP'. 2017 6th International Conference on Computer Applications in Electrical Engineering-Recent Advances (CERA): 51–56. doi:10.1109/CERA.2017.8343300. ISBN978-1-5090-4874-8.
35. ^Kamaruzaman, M. Z.; Wahab, N. I. A.; Nasir, M. N. M. (November 2018). 'Reliability Assessment of Power System with Renewable Source using ETAP'. 2018 International Conference on System Modeling Advancement in Research Trends (SMART): 236–242. doi:10.1109/SYSMART.2018.8746980. ISBN978-1-5386-6369-1.
36. ^Waqfi, R. R.; Nour, M. (April 2017). 'Impact of PV and wind penetration into a distribution network using Etap'. 2017 7th International Conference on Modeling, Simulation, and Applied Optimization (ICMSAO): 1–5. doi:10.1109/ICMSAO.2017.7934892. ISBN978-1-5090-5454-1.
37. ^Liu, Guanghao (September 2019). 'Application of ETAP in distributed power supply and micro-grid interconnection'. 2019 4th International Conference on Intelligent Green Building and Smart Grid (IGBSG). Hubei, Yi-chang, China: IEEE: 108–112. doi:10.1109/IGBSG.2019.8886250. ISBN978-1-7281-2148-2.
38. ^Patel, Rutwa N.; Gandhi, Pimal R.; Velani, Keval (May 2019). 'Power Distribution Network Analysis of High-Rise Building using ETAP'. 2019 International Conference on Intelligent Computing and Control Systems (ICCS). Madurai, India: IEEE: 230–236. doi:10.1109/ICCS45141.2019.9065786. ISBN978-1-5386-8113-8.

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Our lessons include tests, and courses include assessments and exams, all graded by the system and recorded for you. And because we know that not everyone thinks the same way, all lessons include videos and resources to give the student alternative ways to learn the material. Parents have their own accounts, so they can easily check on all their students' scores and progress. The time saved can be spent focusing on a student's weak area, developing a student's unique interests, teaching other subjects like art or music, doing crafts, or just letting the kids be kids.

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eTAP requires no special equipment or downloads. The only requirements are a device with a browser, and an intenet connection. That means you can use it on any desktop, laptop, tablet, or phone. Want to do a lesson at the beach, or take your kids on a trip around the world? eTAP will travel with you.

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