Marelli Motori Series Generators Oil & Gas MJV – MJHV series represent a specialized range of high-performance synchronous generators engineered specifically to meet the rigorous and uncompromising demands of the Oil & Gas industry. These series are designed to provide maximum reliability in extreme environments, whether for onshore or offshore applications, including refineries, pumping stations, and floating production storage and offloading (FPSO) units.

Technical Features and Specifications: Marelli Motori Series Generators Oil & Gas MJV – MJHV
- High Power Output: MJV – MJHV generators are capable of producing massive electrical power to meet the energy demands of drilling rigs, production platforms, and processing facilities.
- Heavy-Duty Industrial Quality: Engineered with high-grade materials and robust construction, these generators are built to withstand intense vibrations, extreme temperatures, and corrosive environmental conditions.
- High Efficiency: Utilizing advanced electric motor technology, the MJV – MJHV series offers superior energy efficiency, which reduces fuel consumption and lowers overall operational costs.
- Extensive Customization: These generators can be tailored to meet the specific requirements of any project, including various voltage levels, frequencies, and specialized cooling systems.
- Superior Reliability: High-quality components combined with rigorous manufacturing processes ensure the long-term reliability and extended service life of the MJV – MJHV units.
Types of Power Generation Units in Oil & Gas
- Natural Gas Generators: These units can utilize natural gas sourced directly from the wellhead to be used as fuel.
- Diesel Generators: These generators are designed to provide Prime Rated Power (PRP) or Continuous Operating Power (COP).
- Nitrogen Generators: These specialized units are utilized across both offshore and onshore applications.
Advantages of Marelli Motori Series Oil & Gas Generators MJV – MJHV
- Peak Performance in Extremes: Engineered for high efficiency in harsh temperatures, humidity, and corrosive environments.
- Advanced Safety: Equipped with sophisticated overload and thermal protection for secure, reliable operation.
- Easy Mobility & Setup: Modular, lightweight design simplifies transport and installation at remote sites.
- Seamless Integration: Fully compatible with standard Oil & Gas control systems and equipment.
Technical Features
- SERIES: MJV (Low Voltage) / MJHV (Medium Voltage)
- POWER: Up to 10000 kVA
- VOLTAGE: Up to 15000 V
- FRAME: 315 – 1250
- POLES: 4 to 12
- FREQUENCY: 50/60 Hz
- PROTECTION DEGREE (IP): 44 (up to 56 on request)
- COOLING METHOD (IC): 611
- AMBIENT TEMPERATURE: -15°C to +60°C
- AVR: E-Vo up to 630 frame; MGC II above (Low Voltage), Vn <= 6900 V: MGC I up to 560; MGC II above; Vn > 6900 V: D-Vo Light (Medium Voltage)
- BEARINGS: antifriction or sleeve (on request)
- APPLICATIONS: Power Generation, Stand-by/Emergency
- STANDARDS: IEC 60034-1 – BS 4999-5000 – NEMA MG 1.32
- CERTIFICATIONS: UL/CSA certification available on request
Main Options of Marelli Motori Series Generators Oil & Gas MJV – MJHV
- Flanged shaft for direct coupling with engine flywheel (in case of single bearing solution)
- Reinforced construction for high linear vibrations
- Neutral point terminals in separate terminal box
- Raised feet to match engine baseframe dimensions (B20 – IM1101)
- Dedicated current transformer installed on neutral point (differential protection and measurement)
- Insulated bearing and earthing brush
- Excitation/overboosting PMG mounted on generator
- Arrangement for rotor earth fault protection 64R
- Arrangement for vibration sensors
Maintenance and Care of Marelli Motori Series Generators Oil & Gas MJV – MJHV
- Routine Physical Inspections: Regularly monitor the unit for any leaks, structural damage, or visible signs of wear and tear.
- Operational Testing: Conduct periodic performance evaluations to verify that the generator consistently meets its technical specifications.
- Scheduled Lubrication: Execute oil changes at designated intervals to maintain engine longevity and smooth operation.
- System Cleaning: Keep the unit free from dust and debris accumulation to ensure proper ventilation and prevent overheating.
Source: www.marellim
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