1. Technical characteristics of water-cooled transformer
·Water cooling is highly efficient in heat dissipation, significantly reducing the size. Water cooling has a much higher heat exchange efficiency than air cooling, and the overall volume and weight of the AN/AF dry-type transformer are reduced by more than 30% compared to the same capacity. It is perfectly suitable for compact and narrow installation spaces in ship engine rooms.
·Sealed and oil-free, with high fire safety standards for ships and no mineral oil media. The epoxy casting fully sealed winding is non flammable and non explosive, meeting the maritime fire safety regulations for ships and eliminating the safety hazards of engine room oil leakage and fire.
·The metal frame and water-cooled pipeline of the whole machine are treated with anti-corrosion passivation and epoxy coating, and the winding is vacuum sealed to isolate water vapor and salt spray, which can withstand high humidity and salt spray condensation environment at sea for a long time.
·Anti harmonic, suitable for ship converter load, ship propulsion frequency converter UPS、 Charging equipment generates a large amount of harmonics, and adopts a structure of reducing eddy currents and magnetic shielding to suppress additional harmonic losses and avoid continuous harmonic heating.
·Low noise, shock-absorbing and anti ship vibration. The whole machine is equipped with double-layer shock-absorbing rubber pads, iron core fastening and anti loosening structure, which can resist ship navigation bumps and main engine vibration impacts. It has low operating noise and does not interfere with engine room equipment and crew living areas.
·Integrated water circulation temperature control system with built-in waterway temperature and winding PT100 dual temperature measurement, linked with ship cooling water pump and temperature control valve, automatically adjusts water flow temperature control, over temperature alarm and shutdown interlock connected to ship centralized control system.
·Insulation moisture resistance, low partial discharge vacuum casting/VPI immersion process, extremely low partial discharge, stable insulation performance under long-term condensation environment in the cabin, and no daily insulation maintenance required.
2. Product features
2.1 Design standards: GB, IEC
2.2 Capacity (MVA): 0.05-8
2.3 Voltage (KV): 0.2~10kV
2.4 Cooling method: WC (water cooling)
2.5 Installation location: Ship engine room power distribution room, superstructure power distribution room, offshore platform electrical control room, ship shore power access room, limited to indoor enclosed ventilation rooms.
2.6 Application scenarios: ocean going container ships, cruise ships, roll on/roll off ships, inland transport vessels, offshore wind power operation and maintenance ships, offshore oil drilling platforms, port ship shore power systems, special engineering salvage ships.
2.7 Insulation level: F or H level
2.8 Operating environment
·Environmental temperature: -35 ℃ to+40 ℃; The maximum short-term ambient temperature in the cabin can reach 50 ℃;
·Altitude: There is no altitude limit at sea, and high-altitude lake areas in inland rivers can be customized to strengthen insulation;
·Atmospheric conditions: high salt spray, high relative humidity ≤ 98%, frequent condensation; There is no strong explosive gas, and there is a small amount of oil and gas in the cabin;
·Special working conditions: able to withstand continuous vibration conditions of ship roll ± 22.5 ° and pitch ± 10 °; The installation space is limited and requires independent water circulation cooling pipelines.
2.9 Types
·According to insulation structure: epoxy cast water-cooled ship transformer, VPI vacuum impregnated water-cooled ship transformer;
·According to insulation and heat resistance level: F-class water-cooled ship transformer, H-class high-temperature resistant water-cooled ship transformer;
·According to the purpose of the vessel:
·Ship daily power distribution water-cooled transformer (lighting, air conditioning, living equipment)
·Water cooled rectifier transformer for ship propulsion system (matching with ship main propulsion frequency converter)
·Ship shore power dedicated water-cooled step-up/step-down transformer
Marine platform power water-cooled transformer
