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Errors in the power loss measured in clockwise and anticlockwise rotational magnetisation. Part 1: Mathematical study

Errors in the power loss measured in clockwise and anticlockwise rotational magnetisation. Part 1: Mathematical study

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It is well known that the rotational power loss differs if the flux vector is rotated in either a clockwise or an anticlockwise rotation direction. An analysis is presented that shows that averaging the clockwise and anticlockwise values introduces an additive error that is dependent on the angular misalignment between the measuring sensors. Equations to minimise this error are presented and validated by application to experiments on electrical sheet steel.


    1. 1)
    2. 2)
    3. 3)
      • Anuszczyk, J.: Analiza rozkladu indukcji i strat mocy przy przemagnesowaniu obrotowym w obwodach magnetycznych maszyn elektrycznych (Analysis of localisation of flux density and power loss in rotational magnetisation in magnetic circuits of electric machines, in Polish), Zeszyty Naukowe Politechniki Lodzkiej, Nr 629, Rozprawy Naukowe z. 158, Lodz, 1991.
    4. 4)
      • S. Zurek , T. Meydan . On errors in power loss measured in clockwise and anticlockwise rotational magnetisation, part II. IEE Proc., Sci., Meas. Technol , 4 , 152 - 157
    5. 5)
      • Gumaidh, A.M., Meydan, T., Moses, A.J.: ‘Characterisation of magnetic materials under two-dimensional excitation’, Presented at the IEEE Intermag Conf., Stockholm, Sweden, 1993.
    6. 6)
      • K. Atallah , D. Howe . Calculation of the rotational power loss in electrical steel laminations from measured H and B. IEEE Trans. Magn. , 6 , 3547 - 3549
    7. 7)
      • Gorican, V., et al.: ‘Performance of round rotational single sheet tester (RRSST) at higher flux densities in the case of GO materials’, Presented at the 2DM Workshop, Ludenscheid, Germany, 2002.
    8. 8)
      • J. Sievert . Recent advances in the one- and two-dimensional magnetic measurements technique for electrical sheet steel. IEEE Trans. Magn. , 5 , 2553 - 2558
    9. 9)
      • W. Saltz . A two-dimensional measuring equipment for electrical steel. IEEE Trans. Magn. , 3 , 1253 - 1257
    10. 10)
      • T. Kanada , M. Enokizono , K. Kawamura , J.D. Sievert . Distributions on localised iron loss of three-phase amorphous transformer model core by using two-dimensional magnetic sensor. IEEE Trans. Magn. , 5 , 4797 - 4799
    11. 11)
    12. 12)
      • Salz, W., Hempel, K.A.: ‘Which field sensors are suitable for a rotating flux apparatus?’, Presented at the 2DM Workshop, Braunschweig, Germany, April 1992.

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