본 발명에 따른 팬터그래프 접촉저항 측정장치는, 복수의 급전전극에 측정전류를 공급하는 측정 전원부; 복수의 급전전극과 측정 전원부 사이에 배치되고, 측정 전원부에서 공급된 측정전류에 대해서 상이한 전류경로를 형성하도록 제어되는 급전 스위치부 및 수전 스위치부; 및 전류경로 상의 급전전극 양단의 전압과 측정전류에 기초하여 급전전극과 수전전극 사이의 접촉저항을 각각 산출하는 산출부를 포함하여 구성된다.이에 따라, 본 발명은, 측정전류의 전류경로를 달리한 다수의 측정방식을 통하여 팬터그래프 충전방식에서 간단한 구조로도 급전전극과 수전전극 간의 접촉저항을 측정함과 동시에 접촉불량이 발생하는 전극을 식별하여 손쉽게 접촉불량을 해결하도록 함으로써, 접촉불량에 의한 화재 및 감전사고를 사전에 예방할 수 있는 효과가 있다.
According to the present invention, provided is a pantograph contact resistance measuring device, which comprises: a measurement power supply unit supplying a measurement current to a plurality of power supply electrodes; a power supply switch unit and a power receiving switch unit disposed between the plurality of power supply electrodes and the measurement power supply unit and controlled to form a different current path for the measurement current supplied from the measurement power supply unit; and a calculation unit calculating a contact resistance between the power supply electrode and the power receiving electrode based on a voltage and the measurement current of both ends of the power supply electrode on a current path. Accordingly, the device of the present invention measures the contact resistance between the power supply electrode and the power receiving electrode even with a simple structure in the pantograph charging method through a number of measurement methods in which the current path of the measured current is different. By identifying the electrode where a contact failure occurs to easily solve the contact failure, fire and electric shock accidents by the contact failure can be prevented in advance.
Apparatus and method for measuring contact resistor of pantograph and pantograph charging system having the same
팬터그래프 접촉저항 측정장치 및 측정방법, 이를 구비한 팬터그래프 충전시스템
2022-01-17
Patent
Electronic Resource
Korean
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