F - Mech Eng,Light,Heat,Weapons – 27 – D
Patent
F - Mech Eng,Light,Heat,Weapons
27
D
324/45, 307/9, 3
F27D 21/00 (2006.01) G01R 31/08 (2006.01) H05B 6/28 (2006.01)
Patent
CA 1206527
INDUCTION FURNACE MONITOR ABSTRACT OF THE DISCLOSURE The specification discloses a computerized monitor for a coreless induction furnace. The monitor includes a first potential transformer connected across the coil and a second potential transformer connected between one end of the coil and an electric ground. The relative location of a ground fault along the length of the coil is determined by computing the ratio of the transformer outputs. The monitor further includes a first current transformer in the coil power line and a second current transformer in the melt bath ground. Internal ground faults are detected by computing the phase difference between the coil and ground currents. A graphic representation of the furnace is also generated to illustrate the location of the ground fault with respect to turns and yokes of the coil. The monitor also calculates liner wear by determining melt bath volume, which is inversely proportional to melt bath resistance, which in turn is pro- portional to coil resistance. If the furnace being monitored is provided with more than one coil, a differential current transformer is connected across each coil to detect the fault grounded coil when the transformer associated with the faulted coil exhibits a substantially nonzero output. -37-
431605
Borden Ladner Gervais Llp
Smalley Daniel S.
LandOfFree
Induction furnace monitor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Induction furnace monitor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Induction furnace monitor will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1214724