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Technical University of Bia l ystok

Technical University of Bia l ystok. MSc Jarosław WIATER. New MOV element model with hysteresis loop in ATP/EMTP. New MOV element model with hysteresis loop in ATP / EMTP. 1. Introduction 2. Surge arrester with hysteresis loop 3. New model 4. Verification 5. Conclusions.

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Technical University of Bia l ystok

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  1. Technical UniversityofBialystok MSc Jarosław WIATER New MOV element model with hysteresis loop in ATP/EMTP

  2. New MOV element model with hysteresis loop in ATP/EMTP 1. Introduction2. Surge arrester withhysteresis loop3. New model4. Verification5. Conclusions Technical University of Bialystok

  3. New MOV element model with hysteresis loop in ATP/EMTP • 1. Introduction • ATP/EMTP uses MOA element • Limitations of MOA • Hysteresis loop Technical University of Bialystok

  4. New MOV element model with hysteresis loop in ATP/EMTP 2. Surge arrester withhysteresis loop 8/20s Technical University of Bialystok

  5. New MOV element model with hysteresis loop in ATP/EMTP 2. Surge arrester withhysteresis loop Technical University of Bialystok

  6. New MOV element model with hysteresis loop in ATP/EMTP 2. Surge arrester withhysteresis loop Technical University of Bialystok

  7. New MOV element model with hysteresis loop in ATP/EMTP 2. Surge arrester withhysteresis loop • omaximum continuous operating voltage Uc=275V • o rated voltage Ur<1500V • onominal discharge current In=20kA • omaximum discharge current Imax=40kA Technical University of Bialystok

  8. New MOV element model with hysteresis loop in ATP/EMTP 3. New model Technical University of Bialystok

  9. New MOV element model with hysteresis loop in ATP/EMTP 4. Verification Technical University of Bialystok

  10. New MOV element model with hysteresis loop in ATP/EMTP 5. Conclusions oprecisely approximates surge arrester characteristic oreal MOA V-I characteristic can be directly transferred from odigital measurement to computer simulation program othere is no need to approximate any MOA analog parameters onew model can be also use for any non-linear element with ohysteresis loop in V-I characteristic or not too otricky algorithm eliminates oscillation during step parameter change oit’s easy to improve in future by simple ATP/EMTP user Technical University of Bialystok

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