A high-protection double-power shore power box

Abstract

A high-protection dual-power shore power box, comprising a box body, three plastic case main circuit breakers, a 380V AC busbar, two contactors, and a DC fast fuse assembly; wherein the two plastic case main circuit breakers have the same specifications, Power is taken from the AC busbar, the outgoing end is connected to the incoming end of the two contactors, and the outgoing end of the two contactors is respectively connected to two onboard chargers; Power is taken from the incoming terminal of the DC fast fuse; four fuse bodies are installed on the DC fast fuse assembly, the DC fast fuse assembly is fixed on the DC copper bar, the DC copper bar is fixed to the box through the insulator, and the copper bar and the insulator are fixed between the copper bar and the insulator. A rubber spacer is installed; the wire entry method of the fuse body is bottom in and top out; the box body is provided with an upper door panel and a lower door panel. The invention solves the problem of shore power distribution of the shore power box to the shipboard charger, and simplifies the operation and monitoring process of the shore power box panel, the internal monitoring circuit, and the charging of the shipboard charger.

Description

technical field [0001] The invention belongs to the technical field of ships, and in particular relates to a high-protection dual-power shore power box. Background technique [0002] Shore power boxes are onboard equipment and are installed on the deck of the ship. When the ship docks at the dock, the shore power box will quickly connect the standard mains on the shore (or on the barge) to the docked ship, so as to meet the life power supply, conduction and signal system power supply required by the ship at this time. [0003] With the development of the shipbuilding industry, new energy ships, especially pure battery-powered ships, have gradually emerged in inland rivers and lakes, while traditional shore power boxes can no longer fully meet the needs of new energy ships for docking shore power access, especially Demand for DC shore power charging of traction batteries. [0004] The power distribution function of the current shore power box is limited to the life power su...

AI Technical Summary

Problems solved by technology

New energy ships, especially battery-powered ships, need to carry out on-board charging operations for power batteries when they are berthed. The existing shore power boxes do not have the functions of charging and distributing batteries and pre-charging and distributing DC busbars.

In addition, when using the shore-based DC charging pile to charge the traction battery, it is necessary to open the door of the battery cabin, and the required charging cable is long, which is not convenient for the laying and storage of the charging cable

Opening the door to charge in rainy days may cause water to enter the power battery compartment

In addition, the charging switch of the on-board power battery is located in the engine room, and the connection of the shore power is completed on the deck, but the charging operation and charging status monitoring need to enter the engine room, and the charging operation process is not smooth

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