interested
farmers. An off the shelf three-phase Baldor Motor has been
changed
by a unique patented connection into the largest single-phase induction
motor in the world at 40 horsepower. Single-phase motors have
been
available to date usually only below ten horsepower. Many areas
only
have single-phase power. The Smith Motor runs on a single-phase
power
supply with three-phase economy and efficiency. The motor is
installed
to Cornell pump which delivers 1350 gallons per minute from canal to
overhead
sprinklers..
It has multiple advantages to the user:
All components
are readily available at low cost because they are standard items in
inventory.
The components are circuit breaker, contactors, capacitors, relays,
transformers,
and an ammeter. No special manufacturing is needed. A new
installation
can be operating soon after the decision to purchase the patent license
from Dr. Smith and assemble the components according to the Smith
design.
For every component, there are several suppliers making equivalent
competing
products, so that either the shortest delivery time or the lowest cost
can be chosen by the consumer.
This motor is quiet and vibration free at full-load. This motor installed on single phase is robust and satisfactory for variations in the line voltage. The single-phase starting current is much less than the three-phase starting current. The single-phase power factor is much higher than the three-phase power factor. This is a more economical method than the extension of a three-phase line to a farmer.
This motor has 94.4 percent efficiency at 42.8
horsepower
to an irrigation pump delivering
1350 GPM. With this method any three-phase motor can be changed
into
a single phase motor. Agricultural needs can use these new
single-phase
motors between ten horsepower and 100 horsepower.
This new single-phase motor has a unique patented connection of a capacitor circuit to the motor windings to make the full-load performance on a single phase line superior to performance on the three-phase supply. Full-load current has almost unity power factor which is preferred for power company single-phase lines. The soft start starting current is less than full-load current and is also at unity power factor.
Hi-efficiency polyphase motors can also be used on all air conditioners and freezers for single phase, saving substantial amounts of energy for consumers, and reducing the severity of summer afternoon power system overloads to inefficient air conditioners.
123Phase Inc.Webmaster: cshock@fmtc.com
POB 1451
Port Townsend WA, 98368
Tel: (360) 379-0142
Fax: (866) 612-9074