Ship shore power system with fault diagnosis and alarm functions

Abstract

The present invention discloses a ship shore power system with fault diagnosis and alarm functions. The system comprises: three phase circuits, wherein at least two of the three phase circuits are arranged in parallel, a neutral point of the three phase circuits is provided with a first electrical signal collection unit, a parallel line of input ends of two of the three phase circuits is providedwith a second electrical signal collection unit, a parallel line of output ends of two of the three phase circuits is provided with a third electrical signal collection unit; a plurality of fault collection units; a fault detection device comprising a plurality of electrical contact terminals arranged in an insulation mode, wherein one angular displacement ball gate ruler is at least arranged at aspace at the inner side of each electrical contact terminal, selection detection units are respectively rotationally arranged at two ends of each angular displacement ball gate ruler, the selection detection units are restrictedly rotated on the angular displacement ball gate rulers, and the bottom portion of each selection detection unit is provided with one reading head rotationally sleeving each angular displacement ball gate ruler; and a fault analysis unit and a location analysis unit. The technical problem is solved that a shore power system cannot rapidly determine and locate faults.

Description

technical field [0001] The present invention relates to a ship shore power system, more specifically, the present invention relates to a ship shore power system with fault diagnosis and alarm functions. Background technique [0002] The method of using land power to supply power to berthing ships is called "shore power technology". When the ship berths at the wharf, all marine diesel power plants are stopped, and the ship's electricity is provided by shore power to reduce pollution in the port area. emissions. In 2006, the European Union proposed and passed the Act 2006 / 339 / EC on the use of shore power supply for ships berthing in various seaports within the EU, suggesting that member states propose preferential policies for the use of shore power and jointly formulate international standards for shore power. , should exchange experience on shore power supply with each other, and vigorously promote the use of shore power. [0003] In order to strengthen energy conservation...

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Problems solved by technology

[0007] Another purpose of the present invention is to provide a ship shore power system with fault diagnosis and alarm functions for the above design defects of the shore power system, and automatically troubleshoot the shore power system through the fault acquisition unit, fault detection device and fault analysis unit Diagnose and analyze, and at the same time give the alarm in time, give the location information of the fault source, so that the staff can solve the fault as soon as possible, thereby improving the reliability of the shore power system. The invention solves the problem that the shore power system cannot be quickly judged. and technical problems in locating faults

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