WEG Generators

At Owens Electric Motor Rewinds, we recommend and supply WEG Generators.

Available with ratings up to 4200kVA, the G Plus series generators from WEG are normally used in gas and diesel generating set units. They are also suited to operate with steam, gas or hydraulic turbines. They operate in many configurations from emergency to continuous duty power units in the following applications:

• Industrial
• Commercial
• Naval
• Telecommunications
• Mining
• Homes
• Irrigation
• Hospitals
• Airports and others

Certifications

WEG's Quality System is certified in accordance with the ISO 9001/14001 standard requirements. The Quality System is audited and certified by the Bureau Veritas Quality Institute. To comply with the most demanding markets, WEG synchronous generators are certified by worldwide institutions such as C.S.A. (CANADIAN STANDARDS ASSOCIATION), C.E. (EUROPEAN COMMUNITY) AND UL (UNDERWRITES LABORATORIES).

WEG synchronous generators for naval applications can be supplied if requested with certificates from classifying entities such as Lloyds, Bureau Veritas, ABS, Germanischer Lloyd, DNV and others.

Constructive Features

Technical Features

• Power: up to 4200 kVA
• Frames: 160 to 630 (IEC)
• Low Voltage: 110 to 690 V
• High Voltage: 2300 to 13,800 V
• Frequency: 50 and 60 Hz
• Degree of Protection: IP21 (IP23, IP23W, IP54, IP54W, IP55 and IP55W under request)
• Insulation Class: H (low voltage) and F (medium & high voltage)
• Winding pitch: 2/3
• Poles: 4, 6 and 8 poles.

Note:
1) The three-phase generators with 12 leads can operate on 190/208/220/240/380/440/480V in 60Hz and 190/208/220/230/380/400V in 50Hz.
2) Three-phase generators with 12 leads can be reconnected to supply single-phase voltages from 110 to 480V.

Operating Conditions

Altitude
Rated power refers to installations up to 1000 m.a.s.l. On applications in higher altitudes the following correction factor must be applied to the output:

Ambient temperature
Rated power refers to installations with maximum ambient temperature of 40 °C. For applications with ambient temperature other than 40 °C, apply the following output correction factor:

Abrasive dust
Additional protections are recommended if the generator is to be used in environments where abrasive dust may enter through ventilation.
Although the generator coils are protected against abrasive environments, severe conditions may require additional protection such as : deflectors, closed cabinets, filters or other suitable protection. Contact WEG for recommendations.

Marine environments
Generators are manufactured with an additional protection over all windings (main stator/rotor and excitation) for marine environments or naval applications.

Outdoor applications (weather-exposed)
In all outdoor applications the generators must be protected and still maintain adequate openings for ventilation.
This protection must be designed in such a way as to prevent the generator of being directly exposed to rain, snow or dust. The use of space heaters is recommended depending on the location and application. Contact WEG for recommendations about required protections.

Duty Cycle

S1 / Continuous / Prime Duty
The generator operates at rated power levels during unlimited periods of time with up to 10% overloading during 1 hour every 12 hours or 2 hours every 24 hours without causing any damage to its insulation system.
The Continuous or Prime Duty is mostly applied where no other source of power is available such as: renal units, irrigation units, refrigeration, co-generation, peak shaving applications etc. temperature rise for continuous duty are typically 125°C, 105°C or 80°C over 40°C ambient.

Stand-by Duty (Ambient temperature of 40°C)
The generator operates as a backup, with variable loads during emergency situations in locations where the main source of power is off. In this duty cycle the generator will not allow overloads and will operate with variable loads up to its maximum rated power level for the stand-by duty at 40°C ambient. The maximum allowed winding temperature is 150°C (per Nema MG-1 and IEC 34 standards), however under these conditions the generator's expected life will be reduced 2 to 6 times. The usage of the generator in stand-by duties is limited to 500 hours per year.

Stand-by Duty (Ambient temperature of 27°C)
This condition is similar to the 150°C temperature rise over 40°C ambient described previously. However the maximum ambient temperature is now 27°C. In this application the generator can supply higher power levels at temperature rise of 163°C. The main application remains in emergency as a back-up for the main source as well as limited to 300 hours per year of operation.

WARRANTY

WEG warranty for continuous duty generators covers manufacturing or material defects for a period of 12 months starting from the invoice issue date (shipping), or 12 months starting from the WEG distributor or retailer's invoice issue date, limited to 18 months from the date of manufacturing. For stand by duty the warranty is limited to 24 months from invoice issue date (shipping) or 30 months from the manufacturing date.

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Contact Owen's Rewinds

Whatever the generator need, contact Jeff at Owen's Electric Motor Rewinds on 07 5482 7171.

Email: workshop@owensrewinds.com.au
Phone (07) 5482 7171
Fax (07) 5482 7993