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公开(公告)号：US4428022A
公开(公告)日：1984-01-24
申请号：US383926
申请日：1982-06-02
摘要： A circuit interrupter includes a microprocessor based trip unit having a plurality of output control lines and a power supply for providing operating power to said trip unit. Interlock means are provided to maintain the output control lines in a predetermined inactive status for a predetermined time period following energization of the power supply to allow time for operating power to rise to a level sufficient to enable the microcomputer to assert positive control over the status of the control lines. An automatic reset circuit is provided to reset the microcomputer program counter to an initialization routine unless a pulse pattern produced by proper execution of the microcomputer instructions is received by the automatic reset circuitry.
摘要翻译： 断路器包括具有多个输出控制线的基于微处理器的跳闸单元和用于向所述跳闸单元提供工作电力的电源。 提供互锁装置以在电源通电之后将输出控制线保持在预定的非活动状态，以允许操作电力的时间上升到足以使微型计算机能够对 控制线。 提供自动复位电路以将微计算机程序计数器复位到初始化程序，除非由微计算机指令的适当执行产生的脉冲模式被自动复位电路接收。
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公开(公告)号：US4351013A
公开(公告)日：1982-09-21
申请号：US140557
申请日：1980-04-15
CPC分类号： H01H73/14 , H02H3/044 , H01H2009/0292 , H01H2071/006
摘要： A circuit interrupter includes a microcomputer-based trip unit, and a display and control panel comprising a numeric display device and a plurality of legends associated with light-emitting diodes. The trip unit presents a sequential display of numeric values of associated circuit electrical parameters and time-current trip characteristic setting values, with the currently visible numeric quantity being identified by an energized light emitting diode and associated legend. The control panel also includes a test switch for initiating a test operation and a potentiometer for selecting a desired simulated fault current value for the test operation. The test capability is provided simultaneously with normal circuit breaker operation which maintains full protection of the associated circuit. A short-delay feature is provided having a selectable i.sup.2 t characteristic with adjustment of both pick-up and time parameters.
摘要翻译： 断路器包括基于微型计算机的跳闸单元，以及包括数字显示装置和与发光二极管相关联的多个图例的显示和控制面板。 跳闸单元呈现相关联的电路电气参数和时间 - 电流跳闸特性设置值的数值的顺序显示，其中当前可见的数字量由通电的发光二极管和相关联的图例识别。 控制面板还包括用于启动测试操作的测试开关和用于为测试操作选择所需的模拟故障电流值的电位计。 测试能力与正常的断路器操作同时提供，保持相关电路的完全保护。 提供了具有可选择的i2t特性的短延迟特征，其具有拾取和时间参数的调节。
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3.发明授权Circuit interrupter with digital trip unit and means to enter trip settings 失效具有数字跳闸单元的断路器和进入跳闸设置的手段
公开(公告)号：US4351012A
公开(公告)日：1982-09-21
申请号：US140553
申请日：1980-04-15
CPC分类号： H02H3/006 , H01H2071/006
摘要： A circuit breaker includes a digital electronic trip unit having a microprocessor. The front panel of the trip unit includes a potentiometer connected across a reference voltage, and a numeric display device. The potentiometer is adjusted by an operator to enter a value of a parameter defining the time-current characteristic of the circuit breaker. An analog-to-digital converter receives the voltage supplied by the potentiometer and converts it to a digital quantity for use by the microcomputer in performing limit checks with the current flow through the contacts of the breaker. The microcomputer formats the converted digital value of the potentiometer voltage and supplies it to a front panel-visible numeric display so that the value of the potentiometer setting as interpreted by the microcomputer in defining the time-current trip characteristic is presented on the numeric display to provide real-time feedback to the operator as he adjusts the parameter value.
摘要翻译： 断路器包括具有微处理器的数字电子跳闸单元。 跳闸单元的前面板包括连接在参考电压上的电位器和数字显示装置。 电位器由操作者进行调整，以输入定义断路器时间电流特性的参数值。 模数转换器接收由电位计提供的电压并将其转换为数字量，供微型计算机使用，并通过断路器的触点进行限流检查。 微型计算机对转换后的电位器电压进行格式化并将其提供给前面板可视数字显示屏，以便在数字显示屏上显示由微型计算机解释的电位器设置值，用于定义时间 - 电流跳闸特性 在调整参数值时，向操作员提供实时反馈。
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4.发明授权Circuit interrupter with digital trip unit and potentiometers for parameter entry 失效具有数字跳闸单元的电路断路器和用于参数输入的电位计
公开(公告)号：US4331997A
公开(公告)日：1982-05-25
申请号：US140558
申请日：1980-04-15
CPC分类号： H02H3/006
摘要： A circuit interrupter includes a microprocessor-based trip unit, a numeric display, and a plurality of potentiometers each associated with one parameter of the time-current trip characteristic of the circuit interrupter. The trip unit provides a sequential display of the present setting values of the time-current trip characteristic parameters. Adjustment of any of the potentiometers is operable to interrupt the sequential display and to cause the present setting of the parameter associated with the adjusted potentiometer to be displayed. Adjustment of the potentiometer to either limit of its travel causes the most conservative setting value for that parameter to be selected. A hysteresis feature is provided to require a significant adjustment of the potentiometer before a different parameter setting will be selected.Although the potentiometers are continuously variable, operator adjustment thereof results in the selection of one of eight predetermined discrete values stored in the trip unit.
摘要翻译： 电路断路器包括基于微处理器的跳闸单元，数字显示器和多个电位器，每个电位器与电路断续器的时间 - 电流跳闸特性的一个参数相关联。 跳闸单元提供时间电流跳闸特性参数的当前设定值的顺序显示。 可以调节任何电位器来中断顺序显示，并且使得显示与调节的电位器相关联的参数的当前设置。 将电位器调整到其行程的任何一个限制都会导致选择该参数的最保守的设定值。 提供滞后功能，以便在选择不同的参数设置之前需要对电位器进行显着的调整。 尽管电位器是连续可变的，但是操作员的调整导致存储在跳闸单元中的八个预定离散值之一的选择。
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公开(公告)号：US4335413A
公开(公告)日：1982-06-15
申请号：US140556
申请日：1980-04-15
CPC分类号： H01H73/14 , H02H3/04 , H01H2071/006
摘要： A circuit breaker includes a microcomputer-based trip unit, and a remote indicator unit and power supply. The trip unit includes an optically-coupled data output system and means for generating a pulse code containing cause-of-trip information and excess demand alarm information. The remote indicator unit includes an optically coupled input circuit and a plurality of light emitting diodes to indicate cause of trip and excess demand alarm information upon receipt of an appropriate pulse code pattern. The remote indicating unit also includes relays to provide control of external alarm circuitry upon receipt of cause of trip and demand alarm information. The remote indicator unit further includes a power supply for supplying operating power to the remote indicator unit and to the trip unit. The power supply is powered both from an external AC line connection and from internal rechargeable batteries.
摘要翻译： 断路器包括基于微型计算机的跳闸单元和远程指示器单元和电源。 跳闸单元包括光耦合数据输出系统和用于产生包含旅途信息和过量需求警报信息的脉冲代码的装置。 远程指示器单元包括光耦合的输入电路和多个发光二极管，用于在接收到适当的脉冲编码模式时指示跳闸和超出需求报警信息的原因。 远程指示单元还包括继电器，用于在接收到跳闸和需求报警信息的原因时提供对外部报警电路的控制。 远程指示器单元还包括用于向远程指示器单元和跳闸单元提供操作电力的电源。 电源由外部交流线路连接和内部可充电电池供电。
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6.发明授权
公开(公告)号：US4331998A
公开(公告)日：1982-05-25
申请号：US140628
申请日：1980-04-15
CPC分类号： G05B19/08 , H02H3/00 , G05B2219/25092 , G05B2219/25114
摘要： A circuit breaker includes a microprocessor-based trip unit and a designator circuit including a plurality of jumper positions. Each jumper position corresponds to one digit of a four digit style number specifying which of a plurality of optional functions and features are incorporated in the specific trip unit. Each jumper position is a multitap voltage divider. Selection of one tap on each of the jumper positions causes a set of four analog voltages to be supplied to the trip unit. An analog-to-digital converter converts the analog voltages to a series of digital representations which are interpreted by the microcomputer as a style number used to command execution of a discrete set of instruction groups, with each instruction group corresponding to one of the optional functions and features.
摘要翻译： 断路器包括基于微处理器的跳闸单元和包括多个跳线位置的指示器电路。 每个跳线位置对应于四位数样式号的一个数字，其指定多个可选功能和特征中的哪一个并入特定跳闸单元中。 每个跳线位置是一个多点分压器。 在每个跳线位置上选择一个抽头将导致一组四个模拟电压提供给跳闸单元。 模拟 - 数字转换器将模拟电压转换成由微计算机解释的一系列数字表示，作为用于命令执行一组离散指令组的样式编号，每个指令组对应于可选功能之一 和功能。
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7.发明授权Arc fault circuit interrupter and method of parallel and series arc fault detection 有权电弧故障电路断路器及并联和串联故障检测方法公开(公告)号：US07558033B2
公开(公告)日：2009-07-07
申请号：US11679281
申请日：2007-02-27
申请人： Xin Zhou , John J. Shea , Joseph C. Engel , Kevin L. Parker , Theodore J. Miller
发明人： Xin Zhou , John J. Shea , Joseph C. Engel , Kevin L. Parker , Theodore J. Miller
CPC分类号： H02H1/0015
摘要： An arc fault circuit interrupter includes separable contacts, a neutral conductor, an operating mechanism structured to open and close the separable contacts, at least one current sensor structured to sense current flowing through the separable contacts and output a sensed current value; and a processor. The processor includes a first routine structured to provide parallel arc fault detection, a second routine structured to provide series arc fault detection, and a third routine structured to enable the first routine and disable the second routine for a predetermined time when the sensed current value is greater than a predetermined value and to enable the second routine and disable the first routine for the predetermined time when the sensed current value is less than the predetermined value.
摘要翻译： 电弧故障电路断路器包括可分离触点，中性导体，构造成打开和闭合可分离触点的操作机构，至少一个电流传感器，其构造成感测流过可分离触点的电流并输出感测的电流值; 和处理器。 该处理器包括构造成提供并联电弧故障检测的第一例程，构造成提供串联电弧故障检测的第二例程，以及第三例程，其构造成使得第一程序能够在预定时间内启用第二例程，当检测到的电流值为 大于预定值，并且当感测到的当前值小于预定值时，启用第二程序并禁用第一例程达预定时间。
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公开(公告)号：US07253640B2
公开(公告)日：2007-08-07
申请号：US10341483
申请日：2003-01-13
申请人： Joseph C. Engel , Engelbert Hetzmannseder , Kevin L. Parker , Peter J. Theisen , Joseph C. Zuercher
发明人： Joseph C. Engel , Engelbert Hetzmannseder , Kevin L. Parker , Peter J. Theisen , Joseph C. Zuercher
CPC分类号： H02H3/042 , H02H1/0015
摘要： A circuit breaker for locating an arc fault for a protected circuit includes separable contacts interrupting the protected circuit and an arc fault detector determining an arc fault in the protected circuit. An analog to digital converter circuit measures a value of peak arc current at the arc fault detector. Another analog to digital converter circuit provides a peak line-to-neutral voltage. A memory provides an arc voltage operatively associated with the value of peak current. A microprocessor determines a distance from the arc fault detector to the arc fault from the value of peak arc current, a wire resistance per unit length or a wire conductance per unit length, the peak line-to-neutral voltage and the arc voltage.
摘要翻译： 用于定位受保护电路的电弧故障的断路器包括中断受保护电路的可分离触点和确定受保护电路中的电弧故障的电弧故障检测器。 模数转换器电路测量电弧故障检测器的峰值电弧电流值。 另一个模/数转换器电路提供峰值线对中性电压。 存储器提供与峰值电流的值可操作地相关联的电弧电压。 微处理器根据峰值电弧电流的值，每单位长度的导线电阻或每单位长度的导线电导率，峰值线对中性电压和电弧电压来确定从电弧故障检测器到电弧故障的距离。
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9.发明授权Apparatus for detecting and responding to series arcs in AC electrical systems 失效用于检测和响应交流电气系统中的串联电弧的装置
公开(公告)号：US5726577A
公开(公告)日：1998-03-10
申请号：US633603
申请日：1996-04-17
CPC分类号： H02H1/0015 , H02H3/44
摘要： Series arcs in an ac circuit are discriminated from other phenomenon by analyzing the timing between pulses in a second derivative of the current signal. A first timer starts timing upon detection of a first pulse in the second derivative of current signal. Time out of the first timer starts a second timer which times a second interval or window during which a series arcing fault will generate a second pulse of opposite polarity to the first pulse. Detection of the first pulse followed by a second pulse of opposite polarity during the window sets a flip-flop to record the event. When a predetermined number of events are counted by a counter within a given time-period set by a third timer, an output signal indicating an arcing fault is generated. If the second pulse is generated before the window opens, or a third pulse occurs during the window, the flip-flop cannot be set so that other events such as the switching of a dimmer do not generate a false output signal.
摘要翻译： 通过分析当前信号的二次导数中的脉冲之间的定时来鉴别交流电路中的串联电弧与其他现象。 当检测到电流信号的二次导数中的第一脉冲时，第一定时器开始定时。 超出第一定时器的时间开始第二定时器，其次数为第二间隔或窗口，其中串联电弧故障将产生与第一脉冲相反极性的第二脉冲。 在窗口期间检测第一脉冲后面是具有相反极性的第二脉冲，设置触发器来记录事件。 当在由第三定时器设置的给定时间段内由计数器对预定数量的事件进行计数时，产生指示电弧故障的输出信号。 如果在窗口打开之前产生第二个脉冲，或者在窗口期间产生第三个脉冲，则不能设置触发器，使得其他诸如调光器的切换的事件不产生错误的输出信号。
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10.发明授权Electrical switches with current protection interfaced with a remote station and a portable local unit 失效具有电流保护的电气开关与远程站和便携式本地单元接口
公开(公告)号：US5596473A
公开(公告)日：1997-01-21
申请号：US384728
申请日：1995-02-06
申请人： Richard A. Johnson , Joseph C. Engel , Michael F. Boccabella , David M. Oravetz , James I. Wise
发明人： Richard A. Johnson , Joseph C. Engel , Michael F. Boccabella , David M. Oravetz , James I. Wise
CPC分类号： H02H3/044 , H02H3/006 , H02H3/0935
摘要： An electrical switch with overcurrent protection communicates as a slave with a remote master station by sending return messages to the remote master station only in response to messages addressed to it. A portable unit plugs into the electrical switch and disables communications between the electrical switch and the remote master station. The portable unit then establishes communications with the electrical switch by sending a global message to the electrical switch requesting the unique address at successive baud rates until a return message containing the electrical switches' address is received. A communications module in the electrical switch transfers to a master mode in response to the global message in order to send the return message containing its unique address. It then reverts to the slave mode for response to subsequent messages from the portable unit containing the unique address. Either the remote master station or the portable unit can test the circuit breaker by sending a message containing a digital test current to the circuit breaker.
摘要翻译： 具有过电流保护功能的电气开关只能通过向远程主站发送返回消息，作为远程主站的从站，仅响应于寻址到远程主站的消息。 便携式设备插入电气开关并禁用电气开关和远程主站之间的通信。 然后，便携式单元通过向电气开关发送全局消息来建立与电气开关的通信，以电连接波特率请求唯一地址，直到接收到包含电开关地址的返回消息。 电气开关中的通信模块响应于全局消息传送到主模式，以便发送包含其唯一地址的返回消息。 然后，它恢复到从模式，以响应来自包含唯一地址的便携式单元的后续消息。 远程主站或便携式单元都可以通过向断路器发送包含数字测试电流的消息来测试断路器。
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