homopolar


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Related to homopolar: Homopolar generator

homopolar

[¦hä·mə′pō·lər]
(electricity)
Electrically symmetrical.
Having equal distribution of charge.
References in periodicals archive ?
The optimum solution to these losses is to use homopolar technology in which the field distribution has only one cyclic change around the rotor and only when the rotor is subjected to radial loading, unlike heteropolar designs in which magnetic field distribution around the rotor has at least four cyclic changes.
Another state-of-the-art magnetless machine for the FESS is the homopolar machine, which not only offers the features of high-speed capability, high robustness and low cost, but also the merit of very low zero-torque spinning losses [52].
[12.] Aanstoos, T, Beno, J., and Caprio, M., "Prototype Low Voltage Homopolar Traction Motor," SAE Technical Paper 2002-01-1876.
Thus the stator windings resistance (Rs) can be determined by measurement in DC and the leakage inductance [L.sub.s[sigma]] can be approximated with the homopolar inductance.
So the symmetrical components are a Direct sequence (also called Positive sequence), an inverse sequence (also called negative sequence), and a zero sequence (also called Homopolar sequence).
Once the Thevenin-equivalent impedance as seen from the node where the fault lies is known, the direct sequence impedance [Z.sub.1], the inverse [Z.sub.2] and the homopolar [Z.sub.0] can be calculated [19].
Phillips and Van Vechten (1969) had calculated the homopolar and heteropolar gaps considering the effect of 'd' core electrons.
Among his topics are cooling and thermal insulation systems, synchronous alternative current homopolar machines, fault current limiters, and maglev transport.
Wilson, the guide includes direct and indirect offerings for new, remanufactured and used portable, truck-mounted, homopolar, gas & diesel operated backup generators as well as alternators, wind turbines, thermogenerators, solar cells, superconducting electric machines as well as power supply equipment for computing applications such as AC-DC convertors, AC-DC wide adjust, dual & single output as well as redundant systems.