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首页> 外文期刊>International Journal of Marine Engineering Innovation and Research >Design of Protection Coordination for Overcurrent on Electrical System in Tanker Ship Plan Using Electro Mechanical Trip Device
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Design of Protection Coordination for Overcurrent on Electrical System in Tanker Ship Plan Using Electro Mechanical Trip Device

机译：用电机械跳闸装置对油轮船舶计划电气系统过流保护协调设计

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摘要

Disturbance of power system in ship is unavoidable case that required a function from safety system to separate the affected parts of system. The disturbance in electrical system generally is a short-circuit current. It is affected when there are two conductors having lowest impedance in normal condition that have two different voltages thus causing an overcurrent. There is one of the device protection to prevent a disturbance like short circuit current, is circuit breaker. It opens the contact with component or system that disturbance using electromechanical trip device. The principal operating of trip device is using electric current flow in the circuit breaker and the magnet induces the tripping part to moving the contact from closed position to the opened position. The main discussion is to coordinate circuit breakers in four operating conditions of the ship's generator using software ETAP. The simulation of the result obtained value of short circuit in main bus one at sailing condition is 8.2 kA. Tripping time for the circuit breakers in sailing condition at one typical disturbance are 0.75 seconds for circuit breaker number 29; 0.83 seconds for circuit breaker number 37 and 1 second for circuit breaker number 28.
机译：船舶中电力系统的扰动是不可避免的情况，需要从安全系统到分离受影响的系统的功能。电气系统的干扰通常是短路电流。当存在具有两个不同电压的正常情况下具有最低阻抗的导体时受到影响，从而导致过电流。有一个设备保护可防止像短路电流的干扰，是断路器。它与使用机电跳闸装置的干扰的组件或系统打开了接触。跳闸装置的主要操作是在断路器中使用电流流动，并且磁体会使跳闸部分引起将接触从关闭位置移动到打开位置。主要讨论是使用软件ETAP在船舶发电机的四个操作条件下坐标断路器。在帆船条件下的主总线中的短路的结果的模拟为8.2 ka。一个典型干扰的帆船条件下断路器的跳闸时间为0.75秒，用于断路器编号29;电路断路器编号为37和1秒的电路断路器编号28.83秒。

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