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公开(公告)号：US20150270697A1
公开(公告)日：2015-09-24
申请号：US14730785
申请日：2015-06-04
申请人： ABB RESEARCH LTD
发明人： Hariram SATHEESH , Bernhard DECK , GN KRISHNAMOORTHY , Mallikarjun KANDE , Sanjeev KOUL , Naman RAVAL , Nayan SHAH , Vishal H. SHAH
摘要： A protection relay is disclosed that generates a trip signal to operate a circuit breaker in case of a fault condition. A first module provides measurement and analysis of power parameters of the power line connecting the power equipment that is being protected, the protection being provided by generating a first trip signal for operating a circuit breaker connected in the power line. One or more second modules can boost performance of the protection relay by measurement and analysis of power parameters-to generate a second trip signal for operating a circuit breaker connected in the power line. The first trip signal and the second trip signal are logically combined to generate a trip signal that operates the circuit breaker.
摘要翻译： 公开了一种保护继电器，其在故障情况下产生跳闸信号以操作断路器。 第一模块提供连接被保护的电力设备的电力线的功率参数的测量和分析，通过产生用于操作连接在电力线路中的断路器的第一跳闸信号来提供保护。 一个或多个第二模块可以通过测量和分析功率参数来提高保护继电器的性能，以产生用于操作连接在电力线路中的断路器的第二跳闸信号。 第一跳闸信号和第二跳闸信号被逻辑地组合以产生操作断路器的跳闸信号。
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公开(公告)号：US20130141827A1
公开(公告)日：2013-06-06
申请号：US13751474
申请日：2013-01-28
申请人： ABB RESEARCH LTD
发明人： Abhisek UKIL , Bernhard DECK , Vishal H. SHAH
摘要： A method of determining a fault parameter of a fault on an AC transmission line 10 of a power distribution system 1 relative to a measurement location 12 of the transmission line 10 comprising: measuring a time-dependent current of the transmission line 10 at the measurement location 12; transmitting a current signal indicative of the measured current to a decision logic section 36, the current signal comprising a plurality of pre-fault current values and a plurality of post-fault current values; determining, by the decision logic section 36, a plurality of phase difference values indicative of respective phase differences between respective pre-fault current values and respective post-fault current values; accumulating the plurality of phase difference values into an accumulated phase difference parameter; obtaining the fault parameter by comparing the accumulated phase difference parameter to a threshold value; and outputting the determined fault parameter.
摘要翻译： 一种确定配电系统1的交流传输线路10相对于传输线10的测量位置12的故障参数的方法，包括：测量测量位置处的传输线路10的时间相关电流 12; 将指示所测量的电流的电流信号发送到判定逻辑部分36，该电流信号包括多个故障前电流值和多个故障后电流值; 由判定逻辑部分36确定指示相应的故障前电流值和相应的故障后电流值之间的相位差的多个相位差值; 将所述多个相位差值累积为累积相位差参数; 通过将累积的相位差参数与阈值进行比较来获得故障参数; 并输出所确定的故障参数。
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