Higher Efficiency and Power Factor
These two performance characteristics provide multiple advantages. Energy requirements are reduced so basic utility costs are lower. With a 30 to 50% lower current; the wiring, switchgear, and inverter needs become smaller and less expensive.
Higher Energy Density
Use of Samarium Cobalt (SmCO) rare earth magnets allow the PM motors to become smaller than reluctance motors, often saving a whole frame size. This reduces both weight and size. Rare earth magnets with high coercive force are used to prevent the motors from demagnetizing in an over-voltage and/or over-temperature condition.
No External Power Supply for Mechanical Braking
Braking torque is produced by simply shorting the motor leads.
Precise Open-Loop Speed Control
Maintained without the expense of peripheral equipment such as tachometers, regulators or expensive closed-loop systems.
Stable Operation
Achieved over a wide frequency range. In many cases this eliminated the need for gears or belts and pulleys.
High Reliability / Longer Life
Vari-Hertz™ motors, as a standard, use Class H insulation (180ºC). Because they are designed for Class B use (80ºC temperature rise), you get a better motor for your money.
- U. S. Patented motor technology.
- Inverter Duty Class H insulation with a Class B temperature rise for a longer life.
- Complete speed regulation with no feedback means precise speed control for a simple, accurate and reliable process without additional peripheral costs.
- Extremely high-energy reliable Samarium Cobalt (SmCO) rare earth magnets that are virtually impossible to demagnetize.
- Inherent dynamic braking by simply shorting the leads.
- Thousands of designs over 20 years, to provide the complete technical support.
- Rugged cast iron enclosures provide rigid mechanical mounting.
- Higher power in a smaller package