NEMA Premium Vertical Pump Motors
A complete upgrade, Ultra Series vertical pump motors combine all the benefits of rugged and reliable XSD Ultra materials with advanced thrust and cooling technologies. All ratings of the Ultra family are fully inverter-duty exceeding NEMA MG1-31 requirements. Ultra Series vertical pump motors are completely NEMA premium efficient, meeting IEEE 841 levels with a full cast iron frame, inline, high thrust, space heaters, and a non-reverse ratchet. Durable construction meets the requirements in a wide range of vertical hollow and solid shaft motor applications.
All lines fully inverter-duty
NEMA Premium Efficient – all lines
Low temperature rise, Class H insulation
Precision RCF data (+/- 5%)
Improved axial ball ratchet systems for better equipment protection
Effective WPI rodent protection
Rugged and reliable cast iron construction
Thrust capability 20% above industry standard for deep well applications
No water cooling required
Expanded 449 frame MV capability
SRC couplings available on stock motors
Insulated bearing and AEGIS SGR Standard
Extended bearing life able to meet 100,000-hour (~12 year) requirement
Standard WPI available in 575V rating
GE pump motors are manufactured standard with a GEGARD2400 insulation system. This system exceeds NEMA MG1-31 (which is 3.1 times the nameplate voltage) for motors operating on inverters. This insulation system is comprised of class H materials. The combination of this and the varnish process provides a typical Corona Inception Voltage of 2400 volts peak with a rise time of 0.1 seconds.