Electricity: motive power systems – Motor-reversing – Field circuit control
Patent
1986-07-14
1987-06-16
Shoop, Jr., William M.
Electricity: motive power systems
Motor-reversing
Field circuit control
318815, 323255, 323256, H02P 764
Patent
active
046738509
ABSTRACT:
An electrical control means useful in systems wherein a motor, such as a blower motor for an air handling unit, must be run at different speed levels and wherein low voltage power must simultaneously be supplied to another part of the system such as a condenser unit. The invention combines auto-transformer and transformer technologies into a single motor control unit. Wiring to the auto-transformer portion of the unit is arranged in such manner that it may be readily field changed to accommodate the various line voltage and frequency levels encountered worldwide. Thus, a signle standardized unit allows accurate motor speed control and simultaneous low voltage power supply without motor overheating or instability under various line voltage and frequency conditions encountered throughout the world.
REFERENCES:
patent: 1519284 (1924-12-01), Wilson
patent: 2417754 (1947-03-01), Hibbard
patent: 2677810 (1954-05-01), Lennox
patent: 2805378 (1957-09-01), Blondet et al.
patent: 3392325 (1968-07-01), Glowinski et al.
patent: 3513380 (1970-05-01), Vargo
patent: 3621374 (1971-11-01), Kettler
patent: 3824449 (1974-07-01), Hase
patent: 4130789 (1978-12-01), Neumann
patent: 4214195 (1980-07-01), Logan
patent: 4330818 (1982-05-01), Peschel
patent: 4363060 (1982-12-01), Stich
patent: 4384247 (1983-05-01), Stewart
patent: 4390822 (1983-06-01), Wechsler
patent: 4554502 (1985-11-01), Rohatyn
patent: 4591779 (1986-05-01), Carpenter et al.
O'Connor Daniel J.
Paul Shik L.
Shoop Jr. William M.
York International Corp.
LandOfFree
Universal motor control system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Universal motor control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Universal motor control system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-685553