The Main Switchboard Design And Application Of Ship

Ship electrical power system is the core part of the ship power and controller. With the large scale, electrification, electronic and automatic development of ship, electrical power system takes on the important task. The main switchboard is an important link of ship electrical network; electrical power is transmitted from the main switchboard to different users via power cable and intermediate power distribution systems (distribution switch bard, sub-distribution panels, etc.). So the basic requirement for the ship electric network is ruggedness. The electric network should be able to provide continuous power supply for the loads even in case of failure of local break, prevent further damage caused by a failure and minimize the impact of the failure.To achieve the power network normal power supply, the paper is beginning from the basic function, parameters, etc. of ship generator, as an example of the main switchboard design and application of3700M3Liquefied Gas Carrier, including the principle design methods, finishing function, component using, etc. combine practical design require, the relevance standard requirements should be consider, but also the economy, practicality and reliability should be require, to finish the design of main switchboard, contenting actual use.Ship power distribution units distribute, monitor, measure, protect, convert and control power supply and load. The functions include the generator control, monitor and protect, shore power indication and chain of the generator, insulation monitoring, emergency light chain, combination startup board, ship power station management and load distribution.Schneider main breakers with affix to adopt finish the function in the design, include in the opening and closing breaker of main switchboard, the necessary chain and the protection function of generator. Monitoring instruments realize monitoring function by means of collecting the voltage and current, etc. The ship power station realizes the ship power station system management by means of the PPU with Siemens plc-200combinations. The ship had get through the local debugging and delivery, pass by sailed actual using after more than two years, the ship is running in good condition.