摘要:
Disclosed herein are electrical power distribution units designed to substantially reduce the magnetic fields emanating from the power distribution units by using two or more bus bar elements for each electric carrying element of the bus system, and positioning each bus bar element in parallel and adjacent at least one other bus bar element carrying a different electrical phase or current direction. Various arrangements of bus bar elements are also disclosed, as well as methods of modifying conventional power distribution units to provide such bus bar arrangements of the invention, that substantially reduce the magnetic fields emanating from the bus bar systems of the units.
摘要:
A bus-bar system usable for electrical cabinets for distributing electrical power supplied by an electrical supply cable comprising two or more electrically conducting wires. In some embodiments the bus-bar system comprises a predetermined number of bus-bar elements each electrically connectable to at least one of the wires of the electrical supply cable. At least one of the bus-bar elements may be formed by a group of at least two sub-bus-bar elements electrically connectable to each other in parallel. Each group of the sub-bus-bar elements may be electrically connectable to at least one of the wires of the electrical supply cable, where each of said bus-bar and sub-bus-bar elements being located adjacent at least one other bus-bar or sub-bus-bar element associated with either different electrical phase or different electrical current direction to thereby cause magnetic fields emanating from said bus-bar and sub-bus-bar elements to destructively interfere with each other.
摘要:
The present invention provides electric cable having substantial immunity to external magnetic fields. The cables may be prepared by splitting one or more conductors of an original cable design into two or more sub-conductors, determining a crosssectional area for each one of the sub-conductors to obtain a desirable electrical current density therethrough, arranging the sub-conductors in said cable in an intervening fashion such that each sub-conductor is placed adjacent and alongside at least one neighboring conductor or sub-conductor associated with either a different electrical phase or electric current direction, and electrically connecting the sub-conductors of each split conductor in parallel.