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Features
GEGARD2000™ Insulation System | Integral to motor life and reliability is a robust insulation system. The GEGARD2000™ system utilized in Ultra™ gives a wide thermal margin between the insulation components and designed operation temperatures. All components except motor leads have been selected using Class H materials, while the motor temperature is kept below Class B temperature rise.
Six Star Bearing System™ | Another key component in motor operation and longevity is the bearing system. The GE Six Star Bearing System™ has been designed to significantly reduce the potential for bearing failure. Vibration has been reduced to an industry leading .04 IPS (inches per second), reducing a leading cause of bearing failure. Regreasing consideration has been made easy with extended greasing provisions, which allows motor users improved ability to regrease these motors when they are installed in the application.
Meets or Exceeds New NEMA Premium Standards | Energy consumption by electric motors can be a significant portion of a large Industrial Manufacturer’s operating budget. As a result NEMA has created a new NEMA Premium Standard for Efficiency, giving users some guidelines to use for selecting motors for Efficiency and best payback for power consumption. The Ultra™ line of motors meets or in several cases exceeds this standard.
Best in Class Drive Compatibi | Electric motors are being used in increasing percentages on variable frequency drives. As a result, we have added several elements to our motor design to allow customers to apply the Ultra™ motor in their applications with greater flexibility. The insulation system has been designed to exceed the NEMA standard MG1-31 regarding Inverter Duty Motor Insulation. Further, the Ultra™ motor has a special designed shaft on the opposite drive end (ODE) to allow for field installation of a tachometer to provide process feedback to the drive.
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Technical Specifications
| Frame Size | 143-449 |
| Poles | 2,4,6,8 |
| Voltage | 230/460,460,575 |
| Frequency | 60 |
| NEMA Design | B |
| Time Rating | Continuous |
| Mounting | Fl |
| Mounting Holes | 2 per foot |
| Ambient | 40C, Alternate rating 65C @ 1.0 SF |
| Altitude | 3300 ft |
| Service Factor | 1.15. Alternate rating 65C @ 1.0 SF |
| Insulation Class | F (Class H materials with Class F leads) |
| Insulation System | Non-Hygroscopic, Anti-Fungus, 2000 Volt @ .lmicrosecond rise time. Exceeds NEMA MG1-31 |
| Temperature Rise | 80°@1.0SF |
| Efficiency | Bearing Type Meets or exceeds NEMA Premium nominal. Exceeds all NEMA Premium minimum efficiencies. |
| Bearing Type | Ball, Belted 4-pole have Roller Brg |
| Bearing Housing Rise | Ball, Belted 4-pole 250-300 HP have Roller Brg 65C Both ends. 143-286: ODE is gasketed, 324-449: both ends are gasketed |
| Bearing Caps | Recessed Slinger, Inpro Seal kit available |
| Bearing Protection | Belted: 26,280 hrs, Belted LlOa 50,000 |
| L10 Bearing Life | Direct Coupled: 130,000 hrs, |
| Grease | Exxon Polyrex EM (Polyurea) |
| Relubrication | Both ends, extended through the fan cover |
| Frame Material | Cast Iron |
| End Shield | Gasketed & rotatable, Fabricated Steel above 250 Amps, All other: Cast iron |
| Conduit Box | Cast Iron |
| Fan Cover | Non-Sparking Plastic or Bronze |
| Fan | SAE, Grade 5 |
| Fasteners | Stainless Steel Includes weight, 3/4 load efficiency.vibration limit, alternate Ambient & Service Factor |
| Nameplate | Ground lug in Conduit Box |
| Ground | 4 Lugs cast into frame |
| Lifting Means | Brass T-drains |
| Drains | Buff, Epoxyester |
| Paint | Cast Aluminum |
| Rotor | ISO Grade 1, Ball Bearings: 0.040 in/sec (P) |
| Balance/Vibration | Roller Bearings: 2P: 0.0003 in (P-P) |
| | 4P: 0.0004 in (P-P) |
| | 6P: 0.0005 in (P-P) |
| | 8P: 0.0007 in (P-P) |
| Shaft | TIR Meets IEEE 841, .001 in for shaft diameter 1.625 in and smaller, .0015 in for shaft diameter greater than 1.625 in |
| Foot Draft Angle | +/-1.5 degrees |
| Foot Flatness | 0.005 inches |
| Tach Mounting | Tack kits for field modifications are available |
| Vibration Pads | Cast in vibration pads for repeatable measurements |
| Centered Core | Allows F1-F2 field conversion |
| Tests | NEMA Routine Report including Vibration supplied with motor, IEE112B |
| Agency Approvals | UL - Component and Insulation System Recognition, CSA - Motors and C-390 |
| Warranty | 3 Years |
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