Arrangement for transferring electrical energy from a furnace tr

Details Arrangement for transferring electrical energy from a furnace tr Arrangement for transferring electrical energy from a furnace tr

1997-05-23

1999-03-30

Walberg, Teresa

Industrial electric heating furnaces

Arc furnace device

Power supply system

373101, H05B 711

Patent

active

058898115

ABSTRACT:
An apparatus for transferring the electrical energy from a furnace transformer to the electrodes of a three-phase arc furnace held by coplanar mast arms. A mast arm for the center current phase is made of aluminum or a material with a similar permeability. The conductor of the center current phase, which is made of at least one high-current tube made of a material with good electrical conductivity, is mounted in insulated fashion in the mast arm and has a smaller geometrical diameter than the conductors for the outer current phases provided by the other two mast arms.

REFERENCES:
patent: 2908736 (1959-10-01), Ernst
patent: 4425658 (1984-01-01), Bretthauer et al.
patent: 4682341 (1987-07-01), Ehle et al.
Timm, K. "Reactance Balancing in High-Current Supply Lines For Three-phase Electric Arc Furnaces." Elektrowarne International 49 (Nov. 1991), B4, pp. B201 to B211.

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