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1. LV alternative maritime power solutions
The LV alternative maritime power solutions are divided into 63A, 125A, and 250A types according to the plug specifications; According to the number of cable reels, there are mainly single cable reel type and double cable reels type; According to the number of plugs, there are mainly single plug type, double plugs type, and four plugs type.
1.1 LV single cable reel, single plug type alternative maritime power solution
This solution can be classified as grade 63A, 125A and 250A.63A solutions are for ships with shore power capacity less than 30kW, 125A solutions are for ships with shore power capacity of 30kW~60kW, and 250A solutions are for ships with shore power capacity of 60kW~120kW. The system is mainly composed of cable reel, shore power connection box and shore power receiving panel (or shore power measurement box).
1.2 LV single cable reel, double plugs type alternative maritime power solution
This solution is used for ships with a shore power capacity of 120kW~250kW. The system is mainly composed of cable reel, shore power connection box and shore power receiving panel, generally equipped with AC690V, 250A plug.
1.3 LV single cable reel, four-plugs type alternative maritime power solution
This solution is used for ships with a shore power capacity of 250kW~500kW. The system is mainly composed of cable reel, shore power connection box and shore power receiving panel, generally equipped with AC690V, 250A plug.
1.4 LV double cable reels, single plug type alternative maritime power solution
The solution is suitable for situations where the ship bow berth or stern berth. Cable reels are arranged on the bow and stern respectively, which can be divided into 125A and 250A according to the plug type. 125A scheme is used for ships with shore power capacity of 30kW~60kW, and 250A scheme is used for ships with shore power capacity of 120kW~250kW. The system is mainly composed of cable reel, shore power connection box and shore power receiving panel (or shore power measurement box).
1.5 LV double cable reels, double-plugs type alternative maritime power solution
This solution is used for ships with shore power capacity of 120kW~250kW. The system is mainly composed of cable reel, shore power connection box and shore power receiving panel, and is generally equipped with AC690V and 250A plug.
1.6 LV double cable reels, four-plugs type alternative maritime power solution
This solution is used for ships with shore power capacity of 250kW~500kW. The system is mainly composed of cable reel, shore power connection box and shore power receiving panel, generally equipped with AC690V and 250A plug.
2. HV alternative maritime power solutions
HV alternative maritime power solutions are for ships with shore power capacity greater than 500kW, mainly including fixed alternative maritime system solutions and containerized alternative maritime system solutions.
2.1.1 HV single reel,single plug type alternative maritime power solution
The cable reel in this scheme can be installed on the PS or STBD deck (suitable for RO-RO ships) or on the middle of the deck (equipped with cable rollers). The shore power receiving panel can be formed into a separate panel or the MSB can realize relevant functions. The system is mainly composed of cable reel, connection switchboard, transformer and shore power receiving panel, and is generally equipped with AC 7.2kV and 350A plug.
2.1.2 HV single reel,double plugs type alternative maritime power solution
This scheme adopts the low-voltage synchronizing mode where shore power connecting to MSB through the step-down transformer, the shore power capacity greater than 500kW. The shore power receiving panel can be formed into a separate panel or the MSB can realize relevant functions. The system is mainly composed of cable reel, connection switchboard, shore power transformer and shore power receiving panel, and is generally equipped with AC 7.2kV and 350A plug.
2.1.3 HV double reels,single plug type alternative maritime power solution
This scheme adopts the low-voltage synchronizing mode where shore power connecting to MSB through the step-down transformer, the shore power capacity greater than 500kW. The shore power receiving panel can be formed into a separate panel or the MSB can realize relevant functions. The system is mainly composed of cable reels, connection switchboard, shore power transformer and shore power receiving panel, and is generally equipped with AC 7.2kV and 350A plug.
2.1.4 HV double reels,double plugs type alternative maritime power solution
(1) HV double reels,double plugs type alternative maritime power solution (LV synchronizing mode)
The HV connection switchboard is connected to the receiving panel by the step-down transformer for ships with shore power capacity greater than 500kW and the ship's MSB is low-voltage. The shore power receiving panel can be formed into a separate panel or the MSB can realize relevant functions. The system is mainly composed of cable reels, connection switchboard, shore power transformer and shore power receiving panel, and is generally equipped with AC 7.2kV and 350A plug.
(2) HV double reels,double plugs type alternative maritime power solution (HV synchronizing mode)
This scheme does not need to configure a step-down transformer, and the HV connection switchboard is directly connected to the receiving panel for ships with shore power capacity greater than 500kW and the ship's MSB is low-voltage. The shore power system is mainly composed of cable reels, connection switchboard and shore power receiving panel, and is generally equipped with AC 7.2kV and 350A plug.
2.2 Containerized alternative maritime power solutions
2.2.1 Containerized HV alternative maritime power solution
(1) Container HV alternative maritime power solution (LV synchronizing mode)
The shore-side cable reel and ship-side cable reel are installed in the container for the connection of on-shore power supply and on-board AMP system, the system is mainly composed of containerized cable reel system (shore-side cable reel, ship-side cable reel and connection switchboard inside),HV/LV socket box, connection switchboard, shore power transformer and shore power receiving panel, and generally equipped with AC 7.2kV and 350A plug.
(2) Container HV alternative maritime power solution (HV synchronizing mode)
In this solution, the shore-side cable reel and the ship-side cable reel are installed in the container for connecting the on-shore power supply and on-board AMP system. The system is not equipped with a step-down transformer, and the HV shore power is directly connected to the MSB. The system is mainly composed of containerized cable reel system (shore-side cable reel, ship-side cable reel and connection switchboard inside), HV/LV socket box, connection switchboard and shore power receiving panel, and generally equipped with AC 7.2kV and 350A plug.
2.2.2 Fixed cable reel and containerized switchboard alternative maritime power solution
For this solution, the HV connection switchboard and transformer are installed in container for ships with shore power capacity greater than 500kW. The system mainly consists of cable reel, containerized switchboard ( connection switchboard, UPS and shore power transformer inside) and shore power receiving panel, and generally equipped with AC 7.2kV and 350A plug.
3. Solutions for alternative maritime power with socket box(without cable reel)
The solutions mainly include HV AMP system with socket box and LV AMP system with socket box.
3.1 LV alternative maritime power with socket box solution
For this solution, the cable reel is installed onshore. During ship mooring, the on-shore cable reel is connected with the socket box onboard to supply shore power, which is suitable for ships with shore power capacity of 30kW ~500kW. The system mainly includes socket box, shore power connection box and shore power receiving panel, generally installed onshore. During ship mooring, the on-shore cable reel is connected with the socket box onboard to supply shore power, which is suitable for ships with shore power capacity ofonfigured with AC 690V, 250A sockets, and the number of sockets is determined according to the shore power capacity.
3.2 HV alternative maritime power with socket box solution
For this solution, the cable reel is installed onshore. During ship mooring, the on-shore cable reel is connected with the socket box onboard to supply shore power, which is suitable for ships with shore power capacity greater than 500kW. The system mainly includes socket box, connection switchboard, shore power transformer (optional) and shore power receiving panel, generally equipped with AC 7.2kV, 350A or AC12kV, 500A sockets, and the number of sockets is determined according to the ship type and shore power capacity.
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