Ship shore power connecting circuit and isolating switch box
A ship and circuit technology, which is applied in the field of ship shore power connection circuit and isolation switch box, can solve the problems such as the hidden danger of power consumption in the wrong phase sequence of cables, and achieve the effect of ensuring safety.
Pending Publication Date: 2019-06-25
GUANGZHOU DESIGN & RES INST OF SHIPS & MARINE ENG +1
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Problems solved by technology
[0004] Based on this, it is necessary to provide a ship shore power connection circuit and an isolating switch box for the problems that the shore power cables are easily connected in the wrong phase sequence and there are hidden dangers in power consumption in the shore power connection system.
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[0048] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. A preferred embodiment of the invention is shown in the drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present invention will be thorough and complete.
[0049] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to and integrally integrated with the other element, or there may be an intervening element at the same time. The terms "disconnected", "one end", "other end" and similar expressions are used herein for the purpose of description only.
[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of o...
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The invention relates to a ship shore power connecting circuit and an isolating switch box. The ship shore power connecting circuit comprises a busbar with the output end being connected with a shorepower box and input circuits connected with corresponding shore power cables, wherein each input circuit includes a switch module, a cable input terminal and a phase difference detection module connected with the switch module; the cable input terminals are connected to the busbar through the switch module and the phase difference detection module; and the phase difference detection module controls the switch module to disconnect the connection with the busbar when detecting the existence of phase difference between the busbar and the cable input terminal. The ship shore power connecting circuit solves a problem that the wrong connection in the ship shore power cable connecting process leads to an interphase short circuit when the shore power line is electrified, and ensures the shore power utilization safety.
Description
technical field [0001] The invention relates to the technical field of ship shore power, in particular to a ship shore power connection circuit and an isolating switch box. Background technique [0002] When a ship obtains power from external power distribution devices such as wharf distribution boxes, external power supply facilities of other ships or offshore platforms, it usually connects the external power supply to the ship’s power distribution system through the ship’s shore power connection system; when the ship When the required external power supply capacity is large, two or more shore power cables are usually required to be used in parallel to meet the maximum capacity requirements of the ship's shore power working conditions. [0003] During the implementation process, the inventor found at least the following problems in the traditional technology: when two or more shore power cables are used at the same time, it is easy to wrongly connect the phase sequence, res...
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IPC IPC(8): H02H11/00
Inventor 危成亮赵凯
Owner GUANGZHOU DESIGN & RES INST OF SHIPS & MARINE ENG