公开(公告)号：KR101093030B1

公开(公告)日：2011-12-13

申请号：KR1020100089281

申请日：2010-09-13

Applicant: 한국철도기술연구원

Inventor： 정호성 ,  박영 ,  민명환 ,  김형철 ,  나희승

IPC: G01R19/10 ,  G01R31/08

Abstract: PURPOSE: A fault point expression system which uses a fault ratio of a current flowing in a car-line of both fault section ends in an alternating current feed system and a method thereof are provided to arrange linearity between a fault current ratio and fault distance regardless of various fault conditions, thereby precisely determining the fault distance. CONSTITUTION: A fault current measurement module(100) measures a current of a car-line on a real time basis. The fault current measurement module measures a fault current of the car-line and generates fault current information when a short-circuit accident of the car-line is generated on a rail. The fault current of the car-line flows in both ends of two loops arranged in a transformer of both sides adjacent to an accident point. A current ratio measurement module(200) receives the fault current information from the fault current measurement module. The current ratio measurement module generates fault current ratio information by calculating a current ratio with respect to the fault current of the car-line. A fault point expression module(300) receives the fault current ration information from the current ratio measurement module.

Abstract translation: 目的：提供一种故障点表达系统，其使用在交流馈电系统中的两个故障部分端部的车线中流动的电流的故障比及其方法来布置故障电流比和故障距离之间的线性度 的各种故障条件，从而精确确定故障距离。 构成：故障电流测量模块（100）实时测量汽车线路的电流。 故障电流测量模块测量汽车线路的故障电流，并在轨道上产生汽车线路的短路事故时产生故障电流信息。 汽车线路的故障电流在布置在与事故点相邻的两侧的变压器中的两个回路的两端流动。 电流比率测量模块（200）从故障电流测量模块接收故障电流信息。 电流比率测量模块通过计算相对于车线的故障电流的电流比来产生故障电流比率信息。 故障点表达模块（300）从当前比率测量模块接收故障电流比例信息。

公开(公告)号：KR101315476B1

公开(公告)日：2013-10-04

申请号：KR1020120037550

申请日：2012-04-10

Applicant: 한국철도기술연구원

Inventor： 정호성 ,  김형철 ,  박영 ,  민명환

IPC: G01R31/02 ,  G01R19/00 ,  B60L3/04

Abstract: PURPOSE: A rail potential rise limit system on a DC electric railway and a method thereof instantaneously suppress a rail potential rise in the event of a dangerous voltage and avoid the risk of a human body. CONSTITUTION: A rail potential rise limit system includes a voltage measurement unit (100), a switch unit (200), a current measurement unit (300), and a control device (400). The voltage measurement unit measures a voltage between a rail and the ground. The switch unit operates when a dangerous voltage is generated through the voltage measurement unit. The dangerous voltage is measured while a voltage over an allowable value exceeds a predetermined time. The current measurement unit measures a current flowing from the rail to the ground when the rail and the ground are connected through the switch unit. The control device sets or controls a voltage value in which the switch unit operates and a current value in which the switch unit stops. [Reference numerals] (100) Voltage measurement unit; (200) Switch unit; (300) Current measurement unit; (400) Control device; (AA) Rail; (BB) Ground

Abstract translation: 目的：直流电铁路上的轨道上升极限系统及其瞬时抑制危险电压下的轨道电位上升并避免人体的危险的方法。 构成：轨道电位上限系统包括电压测量单元（100），开关单元（200），电流测量单元（300）和控制装置（400）。 电压测量单元测量轨道和地面之间的电压。 当通过电压测量单元产生危险电压时，开关单元工作。 当超过允许值的电压超过预定时间时，测量危险电压。 当轨道和地面通过开关单元连接时，当前测量单元测量从轨道流向地面的电流。 控制装置设置或控制开关单元工作的电压值和开关单元停止的当前值。 （附图标记）（100）电压测量单元; （200）开关单元; （300）电流测量单元; （400）控制装置; （AA）铁路; （BB）地面