公开(公告)号：US4747994A

公开(公告)日：1988-05-31

申请号：US40696

申请日：1987-04-20

申请人： Robert E. Hager ,  Jerzy Gutman

发明人： Robert E. Hager ,  Jerzy Gutman

IPC分类号： G21C7/36

CPC分类号： G21C7/36 ,  Y02E30/39

摘要： A control system for a trip coil in a switchgear mechanism which controls the supply of power to a process control device and ensures de-energization of the trip coil shortly after the trip coil is energized. A transformer is supplied with power by the switchgear and outputs reduced power to a rectifier which is connected to the trip coil via a trip activation device. The output of the rectifier can be monitored to determine the ability of the control system to activate the trip coil and the condition of the power supplied to the process control device.

摘要翻译： 一种用于开关机构中的跳闸线圈的控制系统，其控制向过程控制装置供电的功能，并且在跳闸线圈通电后不久即可确保跳闸线圈的断电。 变压器由开关柜供电，并通过跳闸启动装置将降低的功率输出到整流器，整流器连接到跳闸线圈。 可以监控整流器的输出，以确定控制系统激活跳闸线圈的能力以及提供给过程控制装置的功率状态。

公开(公告)号：US4683105A

公开(公告)日：1987-07-28

申请号：US793381

申请日：1985-10-31

申请人： Robert E. Hager

发明人： Robert E. Hager

IPC分类号： G01R31/00 ,  G05B9/03 ,  G21D3/04 ,  H02J3/00 ,  G21C17/00

CPC分类号： G21D3/04 ,  G01R31/00 ,  G05B9/03 ,  Y02E30/40

摘要： A power interface circuit for normally deenergized loads includes the capability to test the operation and connections thereof without any possibility of accidental activation of the load. Three input signals may be received by the power interface circuit which supplies power to a load if two out of three of the input signals indicates activation of the load. A normally closed switch which ordinarily provides power directly to the voter is opened during testing so that the voter is supplied with a reduced power that is insufficient to activate the load. The normally closed switch is closed if any of the input signals indicate activation of the load. Current sensors are included in the power interface circuit to detect all possible logic combinations for activating the load and to detect the operation of the normally closed switch.

摘要翻译： 用于正常断电负载的电源接口电路包括测试其操作及其连接的能力，而没有任何意外启动负载的可能性。 如果三个输入信号中的三个指示负载的激活，则电力接口电路可以接收三个输入信号，该电力接口电路向负载供电。 在测试期间通常向选民提供通常提供电力的常闭开关，使得选民被提供不足以激活负载的降低功率。 如果任何输入信号表示负载的激活，常闭开关闭合。 电流传感器包括在电源接口电路中，以检测用于激活负载的所有可能的逻辑组合并检测常闭开关的操作。

公开(公告)号：US4418279A

公开(公告)日：1983-11-29

申请号：US306448

申请日：1981-09-28

申请人： Robert E. Hager ,  Laurence H. Moss

发明人： Robert E. Hager ,  Laurence H. Moss

IPC分类号： H01J9/227 ,  H01J40/14

CPC分类号： H01J9/2272

摘要： A method and apparatus are disclosed for altering the exposure time of a master timer in a CRT light house to accommodate masks having different aperture sizes. For each expected aperture size, an exposure time modifier is pre-stored, the aperture size of a mask is sensed, and the modifier corresponding to the mask's aperture size is automatically selected. The selected modifier is used to alter the rate at which the master timer times out so as to provide an exposure interval appropriate for the mask being processed.

摘要翻译： 公开了一种用于改变CRT灯室中的主计时器的曝光时间以适应具有不同孔径尺寸的掩模的方法和装置。 对于每个期望的孔径尺寸，预先存储曝光时间修改器，感测掩模的孔径尺寸，并且自动选择对应于掩模孔径尺寸的修改器。 所选择的修饰符用于改变主定时器超时的速率，以提供适合于正在处理的掩码的曝光间隔。

公开(公告)号：US3967257A

公开(公告)日：1976-06-29

申请号：US539145

申请日：1975-01-07

申请人： Robert E. Hager

发明人： Robert E. Hager

IPC分类号： G01R19/15 ,  G08B21/00

CPC分类号： G01R19/15

摘要： A visual indicator in parallel with a zener diode, positioned in series with a load is provided to monitor the presence of current flow in a circuit over a range of several orders of magnitude. In addition, a circuit arrangement is described to monitor the continuity and current flow in two separate parallel paths, feeding a common load in order to check the continuity of the circuitry and associated switching devices. For this purpose, a second current monitor, including a series switch, is placed in parallel with a first series arrangement of a current monitor and a switch. Alternate polarity arrangements of the respective zener diodes associated with the corresonding current monitors are illustrated to show the varing modes of operation contemplated by this invention.

摘要翻译： 提供与与负载串联放置的齐纳二极管并联的视觉指示器，以监视电流在几个数量级范围内的电流的存在。 另外，描述了一种电路装置来监视两个独立的并行路径中的连续性和电流流动，馈送公共负载以便检查电路和相关联的开关装置的连续性。 为此，包括串联开关的第二电流监视器与当前监视器和开关的第一串联装置并联放置。 示出了与相应的电流监视器相关联的各个齐纳二极管的交替极性布置，以示出本发明考虑的操作的变化模式。

公开(公告)号：US4804515A

公开(公告)日：1989-02-14

申请号：US666696

申请日：1984-10-31

申请人： Albert W. Crew ,  James A. Neuner ,  Gilbert W. Remley ,  Robert E. Hager ,  George M. Chambers ,  Eric A. Delava ,  Susan A. Wilbur ,  Thomas J. Kenny ,  James F. Sutherland

发明人： Albert W. Crew ,  James A. Neuner ,  Gilbert W. Remley ,  Robert E. Hager ,  George M. Chambers ,  Eric A. Delava ,  Susan A. Wilbur ,  Thomas J. Kenny ,  James F. Sutherland

IPC分类号： G01D21/00 ,  G05B9/03 ,  G05B23/02 ,  G06F11/16 ,  G06F17/40 ,  G08C15/00 ,  G21C17/00 ,  G21D3/04 ,  G21C7/36

CPC分类号： G06F11/16 ,  G05B9/03

摘要： Signals from redundant sensors located throughout a pressurized water reactor (PWR) nuclear power plant are processed in four independent channel sets each of which includes a plurality of independent microcomputers which calibrate, convert to engineering units and calculate partial trip signals and engineered safeguard actuation signals from the sensor signals for use in the conventional voting logic of a plant protection system. The primary and secondary partial trip and engineered safeguard actuation functions associated with various postulated abnormal events are allocated to different independent microcomputers in the channel set for reliability. A test unit common to the channel set automatically, rapidly bypasses and tests each protection function independently while the other protection functions in the channel set remain on-line and also continually tests each microcomputer through a dummy test function performed along with the assigned protection functions. Signals representative of the analog value of the sensor signals are stored by the microcomputers and are transmitted by a serial data link through a common electrical isolation unit to a common analog output device for use by the plant control and monitoring systems under the control of a communication processor common to a group of microcomputers in the channel set.

摘要翻译： 来自位于整个压水反应堆（PWR）核电站的冗余传感器的信号在四个独立的通道组中进行处理，每个独立的通道组包括多个独立的微型计算机，其校准，转换为工程单位并计算部分跳闸信号和设计的保护启动信号 传感器信号用于植物保护系统的常规投票逻辑。 与各种假设的异常事件相关联的主要和次要部分行程和设计的保护动作功能被分配给可靠性通道组中的不同的独立微型计算机。 通道设置通用的测试单元自动快速旁路并测试每个保护功能，而通道组中的其他保护功能保持在线，并且还通过与分配的保护功能一起执行的虚拟测试功能来连续测试每台微型计算机。 代表传感器信号的模拟值的信号由微型计算机存储，并通过串行数据链路通过公共电气隔离单元发送到公共模拟输出设备，以供通信控制下的工厂控制和监控系统使用 通道集中的一组微型计算机共有的处理器。

公开(公告)号：US4664870A

公开(公告)日：1987-05-12

申请号：US793382

申请日：1985-10-31

申请人： Robert E. Hager

发明人： Robert E. Hager

IPC分类号： G21C17/003 ,  G01R31/00 ,  G01R31/317 ,  G05B9/03 ,  G21C17/00 ,  G21D3/04 ,  G21C7/36

CPC分类号： G05B9/03 ,  G21D3/04 ,  Y02E30/40

摘要： In a protection system for a complex process control system which generates three independent actuation signals, the power interface circuit includes three pairs of switches arranged in three parallel groups of switches connected in series with the load and a voltage source. Each group of switches includes two switches selected from different pairs of switches and connected in series. Normally closed switches are used with normally energized loads and normally open switches with normally de-energized loads. Logic gates control actuation of each individual switch in response either to an associated actuation signal or a test signal generated by a microprocessor. The microprocessor generates a sequence of patterns of test signals which result in various combinations of switch actuations. The current through each group of switches resulting from each combination of switch actuations is compared by the microprocessor with expected values to evaluate circuit performance.

摘要翻译： 在用于产生三个独立的致动信号的复杂过程控制系统的保护系统中，电力接口电路包括三对开关，这三组开关被布置成与负载串联连接的三组并联开关和一个电压源。 每组开关包括从不同开关组中选择的两个开关并串联连接。 常闭开关与正常通电的负载一起使用，并且通常断开开关，正常断电的负载。 响应于相关联的致动信号或由微处理器产生的测试信号，逻辑门控制每个单独开关的致动。 微处理器产生测试信号的一系列模式，其导致开关致动的各种组合。 由开关驱动的每个组合产生的每组开关的电流由微处理器与期望值进行比较以评估电路性能。