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1.发明授权
公开(公告)号：US4328551A
公开(公告)日：1982-05-04
申请号：US130569
申请日：1980-03-14
申请人： Mitsuru Yamaura , Ryotaro Kondow , Kunio Matsuzawa
发明人： Mitsuru Yamaura , Ryotaro Kondow , Kunio Matsuzawa
IPC分类号： H02H3/02 , G06F1/30 , G06F11/14 , G06F12/16 , G11C14/00 , G11C16/04 , H02H3/00 , H03K3/356 , G06F15/56
CPC分类号： G11C14/00 , G06F11/1441 , G11C16/0466 , H02H3/00 , H03K3/356008
摘要： In a protective relaying apparatus for an electric power transmission system and the like there is provided a nonvolatile memory device in which various values required for protection of the system are written electrically. An input device designates addresses in the memory device and memorizes values in the addresses under control of a control device. A digital processing device carries out the protective operations for the electric power transmission system based on the values thus set in the non-volatile memory device.
摘要翻译： 在用于电力传输系统等的保护性中继装置中，提供了一种非易失性存储装置，其中，电气地写入保护系统所需的各种值。 输入装置指定存储装置中的地址，并存储控制装置的控制下的地址中的值。 数字处理装置基于在非易失性存储装置中设定的值，对电力传输系统进行保护作业。
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公开(公告)号：US4772978A
公开(公告)日：1988-09-20
申请号：US918038
申请日：1986-10-14
申请人： Yoshifumi Oura , Kunio Matsuzawa , Kazuyoshi Yoshida , Keizo Inagaki , Hiroyuki Kudo , Yoshihiro Sano
发明人： Yoshifumi Oura , Kunio Matsuzawa , Kazuyoshi Yoshida , Keizo Inagaki , Hiroyuki Kudo , Yoshihiro Sano
摘要： In a transformer protection system, data of voltages and currents detected at individual terminals of a transformer connected to an electric power system are supplied to a computer. The computer computes driving point admittances or shunt admittances of the transformer on the basis of the voltage and current data and predetermined transfer admittances of the transformer and decides that an internal fault has occurred in the transformer when the values of the driving point admittances or shunt admittances deviate from pre-set reference values, thereby disconnecting the transformer from the electric power system.
摘要翻译： 在变压器保护系统中，连接到电力系统的变压器的各个端子处检测到的电压和电流的数据被提供给计算机。 计算机根据电压和电流数据以及变压器的预定转移导纳点计算出变压器的驱动点导纳或分流导纳，并确定当变频器内部故障发生在驱动点接收或分流导纳时 偏离预设参考值，从而将变压器与电力系统断开连接。
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公开(公告)号：US4419737A
公开(公告)日：1983-12-06
申请号：US157340
申请日：1980-06-09
CPC分类号： H02H3/006
摘要： Digital setting value data, having been stored in a first non-volatile memory in response to the operation of a first switch, is transferred to and memorized in a second non-volatile memory. Stored setting value data is read out from at least one of the first and second memories under the control of an address control circuit and coupled to a digital processing section for carrying out digital arithmetic processing for protective control in the processor.
摘要翻译： 已经存储在第一非易失性存储器中以响应于第一开关的操作的数字设定值数据被传送到并存储在第二非易失性存储器中。 存储设置值数据在地址控制电路的控制下从第一和第二存储器中的至少一个读出，并耦合到数字处理部分，用于对处理器中的保护控制进行数字运算处理。
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公开(公告)号：US4357666A
公开(公告)日：1982-11-02
申请号：US130526
申请日：1980-03-14
CPC分类号： H02H3/40
摘要： In a digital distance relay including sample-hold circuits for sampling the voltage and current of an electric power line system, analog-digital converters for converting the outputs of the sample-hold circuits into digital values, memory devices for memorizing the digital values and a program, and a central processing unit for exercising a relaying operation, there is provided a central processing unit which includes means for determining whether at least one of the digital values is greater than a predetermined value. The relaying operation of the distance relay is initiated only when the one digital value is greater than the predetermined value. A method is disclosed which includes the above determining step.
摘要翻译： 在包括用于对电力线系统的电压和电流进行采样的采样保持电路的数字距离继电器中，用于将采样保持电路的输出转换为数字值的模数转换器，用于存储数字值的存储器件和 程序和用于执行中继操作的中央处理单元，提供了一种中央处理单元，其包括用于确定数字值中的至少一个是否大于预定值的装置。 距离继电器的中继操作仅在一个数字值大于预定值时启动。 公开了一种包括上述确定步骤的方法。
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