公开(公告)号：US4722059A

公开(公告)日：1988-01-26

申请号：US725195

申请日：1985-04-19

申请人： Joseph C. Engel ,  Leonard C. Vercellotti ,  Richard A. Johnson ,  Seymour Salowe ,  William R. Verbanets, Jr.

发明人： Joseph C. Engel ,  Leonard C. Vercellotti ,  Richard A. Johnson ,  Seymour Salowe ,  William R. Verbanets, Jr.

IPC分类号： H02H3/093 ,  H02H3/08 ,  G06F15/46

CPC分类号： H02H3/0935

摘要： Programmed overcurrent protection control apparatus with selectable time-overcurrent operation to govern the interruption of current through at least one power line associated with either a ground phase or a power phase of a power system network is disclosed. A programmed processor is included to derive an overcurrent time-to-trip in accordance with sampled measurement current values of the power line and selected derivation constants stored in a memory look-up table. The derivation constants are selected from the look-up table based on derivation parameters which may be set and read by the programmed processor from time to time. The programmed processor utilizes the selected derivation constants to derive the time-to-trip over a number of predetermined time intervals during which the overcurrent condition persists. An alternate overcurrent time-to-trip relationship utilizing different derivation parameters selected from the look-up table may be utilized for the conditions in which overcurrent exists in an initial predetermined range. In some situations, both of the derivation relationships may be used concurrently to derive the overcurrent time-to-trip.

摘要翻译： 公开了一种编程过电流保护控制装置，其具有可选择的时间过流操作，以控制通过与电力系统网络的接地相或电力相关联的至少一个电力线的电流中断。 包括编程处理器以根据存储在存储器查找表中的电力线的采样测量电流值和选择的导出常数导出过电流时间跳闸。 基于可由编程的处理器不时地设置和读取的导出参数，从查找表中选择推导常数。 编程的处理器利用所选择的导出常数来导致在过电流状态持续的多个预定时间间隔内的跳闸时间。 使用从查找表中选择的不同推导参数的替代的过电流时间到跳闸关系可用于在初始预定范围内存在过电流的条件。 在某些情况下，两个推导关系可以同时使用以导出过电流跳闸。

公开(公告)号：US4623949A

公开(公告)日：1986-11-18

申请号：US773473

申请日：1985-09-06

申请人： Seymour Salowe ,  Robert T. Elms ,  Richard A. Johnson

发明人： Seymour Salowe ,  Robert T. Elms ,  Richard A. Johnson

IPC分类号： H02H3/28 ,  H02H7/22 ,  H02H7/26

CPC分类号： H02H7/22 ,  H02H3/283

摘要： A bus differential relay which is capable of distinguishing between an internal bus fault and an external fault on a feeder line with saturation of the faulted feeder line current transformer during portions of the alternating current cycles thereof is disclosed. The relay generates a net current signal or differential signal from the signals generated by the feeder line current transformers of the protected bus section. During an internal fault, the current differential signal extends in amplitude beyond fault current limits and a trip signal is generated to interrupt current to the bus section. During an external fault with current transformer saturation, the current differential signal will include amplitude portions of the alternating current cycles which exceed the fault limits. However, the current differential signal will also include portions of its waveform which are zero or near zero in amplitude (flat spots) which portions reflect that the current transformer of the faulted feeder line is operating out of saturation. If these flat spots occur for a sustained duration of time, for each half cycle the trip signal generation by the relay is inhibited.

摘要翻译： 公开了一种总线差动继电器，其能够在其交流电周期的部分期间区分故障馈线线路电流互感器饱和的馈线上的内部总线故障和外部故障。 继电器由受保护母线段的馈线电流互感器产生的信号产生净电流信号或差分信号。 在内部故障期间，电流差分信号幅度超出故障电流限制，产生跳闸信号以中断到总线部分的电流。 在电流互感器饱和的外部故障期间，电流差分信号将包括超过故障极限的交流电循环的振幅部分。 然而，电流差分信号还将包括零度或接近零幅度（平坦点）的波形的部分，其部分反映了故障馈线的电流互感器的运行不饱和。 如果这些平坦点出现持续的持续时间，则对于每个半周期，继电器产生的跳闸信号被抑制。

公开(公告)号：US4371829A

公开(公告)日：1983-02-01

申请号：US321159

申请日：1981-11-13

申请人： Seymour Salowe ,  Thomas C. Zinchuk

发明人： Seymour Salowe ,  Thomas C. Zinchuk

IPC分类号： H02J3/18

CPC分类号： H02J3/1821 ,  Y02E40/30

摘要： A capacitor unit including a capacitive element connected in parallel with a discharge resistor is provided with a switch in series with the resistor. This switch responds to power frequency current flowing through the capacitive element such that it opens to remove the discharge resistor from the circuit when power frequency current is flowing through the capacitor unit and closes when power frequency current stops, thus reinserting the discharge resistor to eliminate any residual charge remaining on the capacitive element.

摘要翻译： 包括与放电电阻并联连接的电容元件的电容器单元设置有与电阻器串联的开关。 该开关响应流过电容元件的工频电流，使得当工频电流流过电容器单元时，该电源断开以从电路中去除放电电阻，并在工作频率电流停止时闭合，从而重新插入放电电阻以消除任何 剩余电荷残留在电容元件上。

公开(公告)号：US4635258A

公开(公告)日：1987-01-06

申请号：US663242

申请日：1984-10-22

申请人： Seymour Salowe

发明人： Seymour Salowe

IPC分类号： G06F11/00 ,  G06F11/14

CPC分类号： G06F11/0763 ,  G06F11/1441 ,  G06F11/0754 ,  G06F11/076

摘要： A system for detecting a fault in the program execution of a programmed digital signal processing system is disclosed. The fault detection system may include a plurality of monitoring devices for monitoring the execution of a plurality of program portions of the programmed processor and for generating a fault signal in response to a detected faulty program execution condition. Logic circuitry is included for restarting of suspending any fault signal generation rendered by the plurality of monitoring devices. Further included is circuitry for limiting the number of automatic restarts to a predetermined number which avoids continuous cycling between fault signal generation and reset. Still further, the predetermined number of fault generations must occur within a given time interval which may be set and from time to time changed by the program instructions, for example. A fault indication or alarm is not provided until the predetermined number of fault signal generations has occurred within the predetermined time interval. While in the alarm state, the monitoring devices are inhibited, rendering the fault detection system inoperative, and the program execution of the programmed processor is sustained in an initial state. The fault detection system further includes a power supply monitor which disables the logic circuitry when the power supply of the program processor is below a predetermined level to render the fault detection system inoperative and to sustain the program execution at its initial state.

摘要翻译： 公开了一种用于检测编程数字信号处理系统的程序执行中的故障的系统。 故障检测系统可以包括多个监视装置，用于监视编程处理器的多个程序部分的执行，并响应于检测到的故障程序执行条件而产生故障信号。 包括用于重新启动由多个监视装置呈现的任何故障信号产生的逻辑电路。 还包括用于将自动重起次数限制为预定数量的电路，其避免故障信号产生和复位之间的连续循环。 此外，预定数量的故障代数必须在给定的时间间隔内发生，该给定的时间间隔可以被设置并且不时地被程序指令改变。 在预定时间间隔内发生了预定数量的故障信号产生之前，不提供故障指示或报警。 在报警状态下，监控设备被禁止，故障检测系统不起作用，程序执行程序处于初始状态。 所述故障检测系统还包括电源监视器，当所述程序处理器的电源低于预定电平时，所述电源监视器禁用所述逻辑电路，以使所述故障检测系统不起作用并且在其初始状态下维持所述程序执行。

公开(公告)号：US4577279A

公开(公告)日：1986-03-18

申请号：US499624

申请日：1983-05-31

申请人： Seymour Salowe

发明人： Seymour Salowe

IPC分类号： H02H3/02 ,  H02H1/04 ,  H02H3/18

CPC分类号： H02H1/04

摘要： An apparatus and method for removing a transient exponential noise signal from a sinusoidal signal. The effects of the transient are removed by sampling the sinusoidal signal, averaging the transient over a time interval corresponding to an integral number of cycles of the sinusoidal signal, and subtracting this average from the sample at the midpoint of the time interval. The result is a compensated sinusoidal signal wherein the effects of the transient have been removed. The time interval is progressively moved ahead to produce a complete compensated signal by subtracting the average of the exponential from the value thereof at the midpoint of each successive time interval.

摘要翻译： 一种用于从正弦信号中去除瞬态指数噪声信号的装置和方法。 通过对正弦信号进行采样来消除瞬态的影响，在对应于正弦信号的整数周期的时间间隔内对瞬态进行平均，并在时间间隔的中点从样本中减去该平均值。 结果是补偿的正弦信号，其中瞬态的影响已被去除。 通过从每个连续时间间隔的中点的值减去指数的平均值，逐渐向前移动时间间隔以产生完整的补偿信号。

公开(公告)号：US4670891A

公开(公告)日：1987-06-02

申请号：US709239

申请日：1985-03-06

申请人： Seymour Salowe ,  George T. Mallick, Jr.

发明人： Seymour Salowe ,  George T. Mallick, Jr.

IPC分类号： G01T1/17 ,  G01D1/00 ,  G06F17/40

CPC分类号： G01D1/00

摘要： Method and apparatus for monitoring the time rate of successive events the rate of occurrence of which can vary over a wide range by: detecting the successive events during a succession of consecutive time intervals of equal duration; producing successive counts each representing the number of events occurring during each interval in which at least one event occurs; producing successive counts each representing the number of intervals between the end of a respective interval in which at least one event occurred and the end of the immediately preceding interval in which at least one event occurred; and storing representations of the successive counts produced.

摘要翻译： 用于通过以下步骤监测连续事件的时间速率的方法和装置，其发生速率可以在宽范围内变化：检测在连续的相同持续时间间隔期间的连续事件; 产生连续计数，每个计数表示在发生至少一个事件的每个间隔期间发生的事件的数量; 产生连续计数，每个计数表示在发生至少一个事件的相应间隔的结束与发生至少一个事件的紧接在前的间隔的结束之间的间隔数; 并存储产生的连续计数的表示。