Mehrpoliger Schalter zum gestaffelten Ein- oder Ausschalten
    51.
    发明公开
    Mehrpoliger Schalter zum gestaffelten Ein- oder Ausschalten 失效
    Mehrpoliger Schalter zum gestaffelten Ein- oder Ausschalten。

    公开(公告)号:EP0663675A1

    公开(公告)日:1995-07-19

    申请号:EP94100349.3

    申请日:1994-01-12

    发明人: Hux, Guido

    IPC分类号: H01H9/56 H01H33/02

    CPC分类号: H01H9/563 H01H33/022

    摘要: Jede Unterbrechereinheit (10,12,14) des Schalters für Mittel- und Hochspannung weist eine Antriebswelle (30), ein bewegtes Schaltkontaktstück (18) und ein dieses mit der Antriebswelle (30) verbindendes Uebertragungsgestänge (38) auf. Alle Unterbrechereinheiten (10,12,14) sind identisch aufgebaut. Auf jeder Antriebswelle (30) sitzt drehfest ein Antriebshebel (40), die über Koppeln (44,46) miteinander verbunden sind. Um ein gestaffeltes Schalten herbeizuführen, sind die Antriebshebel (40) mindestens zweier Unterbrechereinheiten (10,12,14) bezüglich deren Antriebswellen (30) in unterschiedlicher Drehlage angeordnet.

    摘要翻译: 多极介质和高压开关具有每个极的中断单元(10,12,14)。 这些单元(10,12,14)各自具有驱动轴(30),可动接触元件(18)和将接触件(18)连接到驱动轴(30)的过渡杆(38)。 驱动手柄(40,56)位于平行驱动轴(30)上。 手柄(40,56)经由驱动杆(51)连接到与所有中断单元(10,12,14)共用的驱动器(50)。 所有中断单元(10,12,14)的过渡棒(38)是相同的。 驱动杆(51)具有布置在把手(40,56)之间的联接件(44,46)。 手柄臂(40`,58.58`)相对于驱动轴具有不同的旋转轴承。

    Controller for fixed-time pull-in of a relay
    54.
    发明公开
    Controller for fixed-time pull-in of a relay 失效
    一个继电器固定时间控制器

    公开(公告)号:EP0528357A3

    公开(公告)日:1995-03-22

    申请号:EP92113784.0

    申请日:1992-08-13

    申请人: EATON CORPORATION

    IPC分类号: H01H47/32 H01H9/56

    CPC分类号: H01H9/56 H01H47/325

    摘要: A controller for a relay (R) controls the pull-in time of the armature of the relay by controlling the power applied to the relay coil (1). To determine the actual pull-in time, the time of closure of the contacts is sensed (37,39) and the time at which power is applied to the coil (6) is subtracted from it (38). The actual pull-in time (at 40) is then compared (42) with a stored value (at 44) of ideal pull-in time to produce an error signal (46). The error signal corrects (14,13) the level of power applied to the relay coil upon the next actuation of the relay, to make the actual pull-in time approximately equal to the ideal pull-in time. In some embodiments, to control the level of power on the coil, a Grey-code counter samples a duty-cycle register (14) in a microcomputer (4) and produces a train of pulses (at 8) that is filtered to provide a DC control signal. The DC control signal controls the duty cycle of a pulse-width-modulated oscillator that rapidly switches (modulates) the power to the relay coil.

    摘要翻译: 用于继电器(R)的控制器通过控制施加到继电器线圈(1)的功率来控制继电器的电枢的引入时间。 为了确定实际的引入时间,检测到触点闭合的时间(37,39),并且从其中减去向线圈(6)施加电力的时间(38)。 然后将实际的引入时间(40)与理想引入时间的存储值(44)进行比较(42)以产生误差信号(46)。 误差信号在继电器下一次动作时,校正(14,13)施加给继电器线圈的功率电平,使实际的吸合时间大致等于理想的吸入时间。 在一些实施例中,为了控制线圈上的功率电平,格雷码计数器(20)对微计算机(4“)中的占空比寄存器(14)进行采样,并产生一串脉冲(在8” )被提供直流控制信号(51“),被滤波(53”,“55”)。 DC控制信号控制脉冲宽度调制振荡器(9)的占空比,其快速地切换(调制)到继电器线圈的功率。

    Method and circuit for synchronization of relay operation
    55.
    发明公开
    Method and circuit for synchronization of relay operation 失效
    Verfahren und Schaltung zur Synchronisierung derBetätigungeines Relais。

    公开(公告)号:EP0617443A1

    公开(公告)日:1994-09-28

    申请号:EP94103654.3

    申请日:1994-03-10

    IPC分类号: H01H9/56

    摘要: A control circuit (17) synchronizes operation of a latching relay (K0) to extend contact life. The relay (K0) is switched using an H-bridge drive circuit (22). The synchronization is done using a two-step delay. The first delay is provided by a phase shifter (35), which delays the timing signals used by a logic controller (20) relative to a zero crossing. The second delay is provided by an adjustable timer circuit (22) including a potentiometer (UR2). The two delays are used so that the latching relay (K0) is tripped at a selectable time coinciding with the second zero crossing after a switching command is received.

    摘要翻译: 控制电路(17)使闩锁继电器(K0)的操作同步以延长触头寿命。 继电器(K0)使用H桥驱动电路(22)进行切换。 使用两步延迟完成同步。 第一延迟由移相器(35)提供,其延迟逻辑控制器(20)相对于过零点使用的定时信号。 第二延迟由包括电位计(UR2)的可调定时器电路(22)提供。 使用两个延迟,使得在接收到切换命令之后,锁存继电器(K0)在与第二过零点重合的可选择时间跳闸。

    Method and apparatus for enhancing relay life
    56.
    发明公开
    Method and apparatus for enhancing relay life 失效
    Verfahren und Einrichtung zurVerlängerungder Lebensdauer eines Relais。

    公开(公告)号:EP0571122A1

    公开(公告)日:1993-11-24

    申请号:EP93303625.3

    申请日:1993-05-11

    IPC分类号: H01H9/56 H01H47/32

    摘要: An electronic control for gas furnaces controls a two speed main blower fan and an induction draft fan based on inputs from a room thermostat, a high limit and an ignition control including a gas valve. The control has a circuit board having a power supply for providing 24 volts DC current source to drive DC relays and a 5 volt DC power source to power a microprocessor. 24 volt AC input signals are coupled to the input ports of the microprocessor through current limiting resistors and to AC ground through pull down resistors. AC ground is also connected to the IRQ port of the microprocessor. The output ports of the microprocessor are connected to a relay driver which in turn is connected to relays for energizing and de-energizing the fans.
    The control calibrates itself on a continuing periodic basis to read the AC inputs synchronously at the peak of their wave and can switch the relays asynchronously based on the Real Time Clock of the microprocessor or can be switched synchronously by providing a selected delay so that contact engagement and disengagement occurs at or near the zero crossing of the AC line voltage wave form. When used with resistive loads the relays are switched in response to a signal from the microprocessor which is delayed based on the mechanical switching time constant of the relays to provide contact closure and opening at the selected point on the AC line voltage wave form. An alternate embodiment shows a feedback network used to calibrate the specific delay period for each relay upon initialization. When used with inductive loads contact closing can be effected synchronously and contact opening asynchronously.

    摘要翻译: 用于气体炉的电子控制器基于来自房间恒温器,上限和包括气体阀的点火控制器的输入来控制双速主风机风扇和感应通风机。 该控制器具有电路板,该电路板具有用于提供24伏直流电流源以驱动直流继电器的电源和5伏直流电源来为微处理器供电。 24伏交流输入信号通过限流电阻耦合到微处理器的输入端口,并通过下拉电阻耦合到交流接地。 交流接地也连接到微处理器的IRQ端口。 微处理器的输出端口连接到继电器驱动器,继电器驱动器又连接到用于为风扇通电和断电的继电器。 该控制器在持续的周期性基础上自行校准,以在其波峰值同步读取AC输入,并且可以基于微处理器的实时时钟异步地切换继电器,或者可以通过提供所选择的延迟来同步地切换,使得接触接合 并且在AC线电压波形的过零点处或附近发生分离。 当与电阻性负载一起使用时,响应于来自微处理器的信号来切换继电器,该信号基于继电器的机械开关时间常数被延迟,以在AC线电压波形上的选定点处提供触点闭合和断开。 替代实施例示出了用于在初始化时校准每个继电器的特定延迟周期的反馈网络。 当与感性负载一起使用时,触点闭合可以同步进行,并与异步开启接触。

    Relay with ARC sensor
    58.
    发明公开
    Relay with ARC sensor 失效
    Relais mit Lichtbogen-Sensor。

    公开(公告)号:EP0429159A2

    公开(公告)日:1991-05-29

    申请号:EP90301915.6

    申请日:1990-02-22

    申请人: Polster, Louis S.

    发明人: Polster, Louis S.

    IPC分类号: H01H47/24 H01H9/56 H05B1/02

    摘要: The relay has contacts (14,16) to control delivery of AC power to a load (20), and includes a sensor (46) mounted for detecting any arc at the relay contacts, and a control circuit (50) which controls the time of subsequent actuation or deactuation of the relay with respect to the AC power supply so that the relay contacts open or close substantially at a zero crossing point of the AC current, so as to minimise relay contact arcing, per EP-AZ-0 349 273. The sensor (46) is fixedly mounted by a bracket (48) on the relay base (43), so that its face is reliably fixed in position close to the contacts. The sensor may comprise an optical sensor (46), or the input end (54) of an optical fibre (58; Figure 3), or a field effect sensor (62; Figure 4), or may be in (96; Figure 6) or beneath (65; Figure 5) the relay base.

    摘要翻译: 继电器具有用于控制向负载(20)的交流电力的传递的触点(14,16),并且包括安装用于检测继电器触点上的任何电弧的传感器(46),以及控制电路(50),其控制时间 继电器相对于AC电源的致动或去激活,使得继电器基本上在AC电流的过零点处打开或关闭,以便使每个EP-AZ-0 349 273的继电器接触电弧最小化 传感器46通过托架48固定在继电器基座43上,使得其表面被可靠地固定在接近触点的位置。 传感器可以包括光学传感器(46)或光纤(58;图3)的输入端(54)或场效应传感器(62;图4),或者可以在(96;图6 )或下方(65;图5)继电器底座。