200KW 250KVA Marine Diesel Generator Set for the Commercial Vessels, Fishing boats, Workboats, Offshore service boats

The 200kW marine generator set is a widely used type of marine power equipment; acting as the “heart” of the vessel, it supplies electricity to almost all onboard systems.

⚙️ A Proven Mainstay: The 200kW Diesel Generator Set
This is currently the most widely applied and mature solution. Market reports indicate that generator sets rated at 200kW or below account for over 21% of global sales, enjoying particular popularity in regions such as Southeast Asia and Africa.

200kw marine generator

250KVA Marine Diesel Generator Applications:

These marine generators serve as either the primary power source or the emergency backup power supply for many vessels. They are primarily used on:

Small commercial vessels: Fishing boats, coastal ferries, and small passenger ships.

Medium-sized workboats: Offshore service vessels, medium-sized cargo ships, and supply vessels.

Specialized vessels: Serving as onboard emergency generator sets to ensure safety.

In general, generator sets in the 200kW power class can be categorized by vessel type and function:

Fishing vessels & small commercial ships:  Serve as the primary power source, supplying electricity for fishing gear, navigation and communication systems, and crew amenities.Passenger ships & ferries: Provide primary or backup power for onboard lighting, air conditioning, ventilation, and passenger service facilities.

Medium-sized cargo ships & offshore vessels: Act as auxiliary power sources, powering cargo handling equipment (such as winches and cranes) and ballast systems.

Specialized engineering & offshore support vessels: Serve as primary or auxiliary power to support specialized operations, such as hydraulic fracturing and offshore wind farm maintenance.
Naval vessels: Provide reliable power for critical systems, including combat systems, communications, and radar.

Technical Features of 250KVA Marine generator:

Mainstream Configuration: Diesel generator sets typically consist of two main components: a diesel engine and an alternator. A typical setup features a Cummins NTA855-DM series or Weichai WP10CD series diesel engine paired with an alternator from brands such as Marathon or Stamford. 

Key Technologies:

Cooling System: Marine units often utilize seawater-to-freshwater heat exchangers; seawater cools the freshwater, which in turn cools the engine, ensuring suitability for the marine environment.

Certification Standards: Products generally require certification from authoritative bodies—such as the China Classification Society (CCS), Bureau Veritas (BV), or the American Bureau of Shipping (ABS)—to ensure compliance with maritime safety and construction regulations.

250KVA Marine generator testing

Advantages of Stamford Marine Generators

1. Permanent magnet generator PMG excitation
2. Advanced automatic voltage regulator control (MX341), providing ±1.0% voltage regulation, it is used on marine generators as a standard configuration. This AVR has built-in protection against internal or external faults caused by persistent over-excitation. Cut off the excitation after a minimum of 5 seconds
3.  2/3 winding pitch suppresses excessive neutral current. 2/3 pitch winding can effectively eliminate the third harmonic of the voltage and the multiples of 3 harmonics. It is the best design for uninterruptible power supply equipment and other nonlinear loads. When it is connected in parallel with the power grid, the 2/3 pitch structure suppresses This eliminates the excessive neutral current that sometimes occurs with larger coil pitches.
4. A fully continuous damping winding reduces oscillations when the generators are operated in parallel. The 2/3 pitch, pole and teeth are carefully matched to suppress the waveform distortion of the output voltage.
5. Single or double fulcrum structure and dynamically balanced rotor with sealed bearings
6. Easy to install and maintain
7. Standard IP23 protection level
8. Manufactured to leading marine standards

250KVA 200KW Marine diesel generator specification

When you need marine diesel generators, please call us. +86 15095247272. Email: elaine@uleengen.com