Introduction
MarelliMotori is a well-recognized name in the industrial world, particularly in the field of electric motor and generator production. One of their flagship products is the MJVM – MJHVM series of marine generators, specifically designed to meet the high demands of the maritime sector.
What is MarelliMotori Series Generators Marine MJVM – MJHVM?
MarelliMotori Series Generators Marine MJVM – MJHVM is a range of electric generators designed to provide reliable and efficient performance in a variety of maritime applications. These generators are capable of delivering stable and high-quality electrical power, even in harsh and challenging environmental conditions such as at sea.
Key Advantages
- High Performance: Designed with the latest technology, this generator is capable of delivering large and stable output power, even under heavy load conditions.
- Reliability: Built with high-quality materials and rigorous manufacturing processes, this generator has a high level of reliability and a long service life.
- Efficiency: This generator is designed to operate with high efficiency, saving fuel consumption and reducing operating costs.
- Flexibility: Available in a variety of sizes and configurations, they can be customized to suit the specific needs of each application.
- Safety: Equipped with various safety features, such as protection against overload, short circuit, and overheating, to ensure safe and reliable operation.
- Compatibility: The generator is compatible with various types of drive engines, both diesel and gas engines.
What Makes It Special?
- Reliable Performance in Extreme Environments: This generator is designed to operate optimally in harsh marine conditions, including extreme temperatures, high humidity, and vibration.
- High Efficiency: With advanced technology, this generator is able to generate electrical power with high efficiency, thus saving on fuel consumption.
- Maximum Safety: Equipped with various safety features to protect the generator from damage, such as protection against overload, short circuit, and overheating.
- High Flexibility: Available in a variety of sizes and configurations, making it adaptable to different power requirements.
- Long Service Life: Constructed with high-quality materials, this generator has a long service life and requires minimal maintenance.
Key Advantages
- High Performance: Designed with the latest technology, this generator is capable of producing large and stable output power, even under heavy load conditions.
- Reliability: Constructed with high-quality materials and rigorous manufacturing processes, this generator has a high level of reliability and a long service life.
- Efficiency: This generator is designed to operate with high efficiency, saving fuel consumption and reducing operating costs.
- Flexibility: Available in a variety of sizes and configurations, they can be customized to suit the specific needs of each application.
- Safety: Equipped with various safety features, such as protection against overload, short circuit, and overheating, to ensure safe and reliable operation.
- Compatibility: The generator is compatible with various types of drive engines, both diesel and gas engines.
Applications
Marine MJVM – MJHVM generators are widely used in various maritime applications, including:
- Commercial Ships: As the main or backup power source for various equipment on board, such as propulsion systems, navigation systems, and communication systems.
- Offshore Vessels: To provide electrical power for offshore oil and gas production equipment.
- Warships: As an electrical power source for various weapon systems and electronic equipment.
- Cruise Ships: To meet the high electrical power requirements for various passenger facilities and comfort.

Technical Features
SERIES: MJVM (Low Voltage) / MJVHM (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; D-Vo Light above (Low Voltage) / D-Vo Light (Medium Voltage)
BEARINGS: antifriction or sleeve (on request from frame 400)
APPLICATIONS: Stand-by/Emergency, Off-shore
STANDARDS: IEC 60034-1 – BS 4999-5000 – NEMA MG 1.32
CERTIFICATIONS: Marine Survey Certifica
Main Options:
- 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
Conclusion
MarelliMotori Series Generators Marine MJVM – MJHVM is the right choice for those of you who need a reliable, efficient, and durable electric generator for maritime applications. With its various advantages, this generator can be relied upon to fulfill your electrical power needs at sea.
Source: www.marellim
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