Analogue electronic trip device for an electrical power breaker responding to a short-circuit
    1.
    发明申请
    Analogue electronic trip device for an electrical power breaker responding to a short-circuit 审中-公开
    用于断电器的模拟电子跳闸装置,用于响应短路

    公开(公告)号:US20050141163A1

    公开(公告)日:2005-06-30

    申请号:US10508790

    申请日:2003-03-13

    IPC分类号: H02H1/00 H02H1/06 H02H3/00

    CPC分类号: H02H1/063 H02H1/0007

    摘要: A trip device is for an electrical power breaker, for tripping on a short-circuit. It is embodied as an analogue electrical circuit. The circuit components and devices necessary for tripping on a short circuit form a discrete module, completely independent of other trip devices on the power breaker. A direct current is provided by transformers together with rectifiers which flows through a power semiconductor switched to conduct in the normal operating state of the power breaker. A measurement and control circuit is controlled by way of a voltage generated across a measuring resistance through which the direct current flows and closes the power semiconductor when a threshold value is exceeded. The current is then commutated from the power semiconductor to the trip magnet which opens the switch contacts with a particularly small delay.

    摘要翻译: 跳闸装置用于断电器,用于短路跳闸。 它被实现为模拟电路。 在短路上跳闸所需的电路组件和设备形成离散模块,完全独立于断路器上的其他跳闸装置。 变压器与整流器一起提供直流电流,整流器流过切换电源的功率半导体,以在断电器的正常工作状态下导通。 测量和控制电路通过跨越测量电阻产生的电压进行控制,通过该测量电阻,当超过阈值时,直流电流流动并闭合功率半导体。 电流然后从功率半导体转换到跳闸磁体,其以特别小的延迟打开开关触点。

    Electric power switch with an electronic memory unit for parameters and conversion factors
    2.
    发明申请
    Electric power switch with an electronic memory unit for parameters and conversion factors 有权
    电力开关带有电子存储单元的参数和转换因子

    公开(公告)号:US20050174712A1

    公开(公告)日:2005-08-11

    申请号:US10513461

    申请日:2003-04-10

    IPC分类号: H02H3/00 H02H3/08

    CPC分类号: H02H3/006

    摘要: An electrical power breaker includes an electronic protective device and an electronic memory. The memory is accommodated in the power breaker such that it is physically separated from said protective device, for operational data for the power breaker. Data security when using the additional electronic memory is increased by the electronic memory being connected to the protective device via a data bus, which can be used to transmit control signals for the purpose of activating or deactivating a write protection device of the electronic memory. The data bus is preferably an I2C bus, and the write protection device is controlled by an I/O module which is likewise controlled by the I2C bus.

    摘要翻译: 电力断路器包括电子保护装置和电子存储器。 存储器容纳在断电器中,使得其与所述保护装置物理分离,用于断电器的操作数据。 通过经由数据总线连接到保护装置的电子存储器增加使用附加电子存储器时的数据安全性,数据总线可以用于传送控制信号,以激活或去激活电子存储器的写保护装置。 数据总线优选地是I总线,并且写保护装置由同样由I 2 C C总线控制的I / O模块控制。

    Method and Circuit for Amplifying the Input Signals of an Electronic Overcurrent Release of Low-Voltage Circuit Breakers with a Selectable Amplification Factor
    3.
    发明申请
    Method and Circuit for Amplifying the Input Signals of an Electronic Overcurrent Release of Low-Voltage Circuit Breakers with a Selectable Amplification Factor 审中-公开
    用于放大具有可选择放大因子的低压断路器的电子过电流释放输入信号的方法和电路

    公开(公告)号:US20080123237A1

    公开(公告)日:2008-05-29

    申请号:US11791857

    申请日:2005-11-10

    IPC分类号: H02H3/08

    CPC分类号: H02H1/0007 H02H3/006

    摘要: A method and a circuit are disclosed for amplifying the input signals of an electronic overcurrent release of low-voltage circuit breakers with a selectable amplification factor. The electronic overcurrent release includes at least one integrating condenser on the input side, and at least one pre-amplifier and a microprocessor. According to at least one embodiment of the invention, a resistance is coupled to a switch in series, parallel to an integrating condenser, and the switch is switched by way of the microprocessor in a pulsewidth-modulated manner. In this way, the effectively active resistance value of the inserted resistances is inversely increased proportionally to the pulsewidth repetition rate, thus obtaining an extremely wide regulating range.

    摘要翻译: 公开了一种方法和电路,用于放大具有可选放大系数的低压断路器的电子过电流释放的输入信号。 电子过电流释放包括至少一个在输入侧的积分电容器,以及至少一个前置放大器和微处理器。 根据本发明的至少一个实施例,电阻与并联于积分电容器的串联开关耦合,并且开关通过微处理器以脉冲宽度调制方式被切换。 以这种方式,插入的电阻的有效电阻值与脉冲重复频率成比例地成反比地增加,从而获得极宽的调节范围。

    Three- or four-pole low-voltage power switch with rogowski coils operating as current sensors
    4.
    发明申请
    Three- or four-pole low-voltage power switch with rogowski coils operating as current sensors 有权
    具有罗格斯基线圈的三极或四极低压电源开关作为电流传感器工作

    公开(公告)号:US20070182401A1

    公开(公告)日:2007-08-09

    申请号:US10591461

    申请日:2005-03-02

    IPC分类号: G01R15/18

    CPC分类号: H02H3/32 H02H1/0007

    摘要: A three or four pole low-voltage power switch is disclosed wherein the switch is partly provided with a device for detecting ground faults. For this purpose, the current vectorial sum must be produced in the three or four conductors of a monitored network. For the switches of this type, output signals received from Rogowski coils are directed via resistances to an integration capacitor whose voltage forms an input signal of another measuring amplifier representing the current sum of a monitored network. The output signal of the measuring amplifier is, afterwards processed in a known manner in the microprocessor of an excess-current trip.

    摘要翻译: 公开了三极或四极低压电力开关,其中开关部分地设置有用于检测接地故障的装置。 为此,当前的矢量和必须在被监控网络的三根或四根导体中产生。 对于这种类型的开关,从罗戈夫斯基线圈接收的输出信号通过电阻被引导到积分电容器,该电容器形成表示被监控网络的当前和的另一个测量放大器的输入信号。 测量放大器的输出信号后来以已知的方式处理在微处理器中的过电流跳闸。

    Voltage transformer with increased electric strength
    5.
    发明授权
    Voltage transformer with increased electric strength 失效
    具有增加电力强度的电压互感器

    公开(公告)号:US5859529A

    公开(公告)日:1999-01-12

    申请号:US894575

    申请日:1997-12-18

    CPC分类号: G01R15/06 G01R15/18

    摘要: A voltage transformer with increased electric strength has a resistance divider made of ohmic resistances as well as a working amplifier and an inductive transformer. The secondary side of the inductive transformer forms the undervoltage side of the voltage transformer. Since high electric strength resistances are cheap to obtain, this voltage transformer is particularly useful in cases where an inductive voltage cannot be used because of its size and price, for example in low voltage power switches with voltage display or voltage measurement.

    摘要翻译: PCT No.PCT / DE96 / 00291 Sec。 371 1997年12月18日第 102(e)日期1997年12月18日PCT 1996年2月16日PCT PCT。 WO96 / 26447 PCT出版物 日期1996年8月29日具有增加电强度的变压器具有由欧姆电阻制成的电阻分压器以及工作放大器和电感变压器。 感应变压器的次级侧形成变压器的欠压侧。 由于高电阻值获得便宜,所以在电压显示或电压测量的低压电源开关中,由于电压电压的大小和价格不能使用,因此该变压器特别有用。

    Circuit configuration for supplying power to electronic tripping device
    6.
    发明授权
    Circuit configuration for supplying power to electronic tripping device 失效
    用于向电子跳闸装置供电的电路配置

    公开(公告)号:US6150739A

    公开(公告)日:2000-11-21

    申请号:US147998

    申请日:1999-03-24

    IPC分类号: H02H1/06 H02M3/155 H01H47/00

    CPC分类号: H02M3/155 H02H1/066

    摘要: A circuit configuration for supplying power to electronic tripping devices from a current-transforming device. A switched-mode power supply unit, in particular a choke/step-up transforming device having a pulse-width voltage control, is connected downstream of a charging capacitor. Once a set point of the output voltage at an output capacitor is reached, only a very high pulse duty factor is provided. Particularly, maximum power point control is provided during an initial charging phase. Circuit configurations of this kind serve the power supply of overvoltage tripping devices in low-voltage and medium-voltage systems.

    摘要翻译: PCT No.PCT / DE97 / 02215 Sec。 371 1999年3月24日第 102(e)1999年3月24日PCT 1997年9月24日PCT公布。 第WO98 / 13918号公报 日期1998年4月2日用于从电流转换装置向电子跳闸装置供电的电路配置。 开关模式电源单元,特别是具有脉冲宽度电压控制的扼流/升压转换装置连接在充电电容器的下游。 一旦达到输出电容器的输出电压的设定点,只提供非常高的脉冲占空因数。 特别地,在初始充电阶段期间提供最大功率点控制。 这种电路配置用于低压和中压系统中过电压跳闸装置的电源。

    Intrinsically safe power supply with a current regulator
    7.
    发明授权
    Intrinsically safe power supply with a current regulator 失效
    本质安全电源带有电流调节器

    公开(公告)号:US4646219A

    公开(公告)日:1987-02-24

    申请号:US794962

    申请日:1985-11-04

    申请人: Wolfgang Rohl

    发明人: Wolfgang Rohl

    IPC分类号: H02M3/335

    CPC分类号: H02M3/33523

    摘要: An intrinsically safe power supply arrangement with a current regulator is provided with a controlled semiconductor, coupled to a clock generator and coupled between a rectifier and a primary winding of a transformer, for periodically interrupting a DC current in response to a clock signal. A short-circuit switch is disposed between a secondary winding of the transformer and an output of the power supply arrangement. A choke is coupled to the short-circuit switch, and a voltage limiter is coupled to the choke. A current regulator, coupled between the voltage limiter and the output of the power supply arrangement, has a retrogressive current-voltage characteristic and a delay stage for producing a time-delayed rise of a selectable combination of current and voltage. A circuit element supplies a selectable input and output signal of the current regulator to an input of a voltage regulator. An output of the voltage regulator is coupled to the clock generator. A current measuring circuit coupled to the primary winding of the transformer and the clock generator limits the current supplied to the primary winding of the transformer in the event of a short-circuit on the secondary side of the transformer.

    摘要翻译: 具有电流调节器的本质安全的电源装置设置有被耦合到时钟发生器并耦合在变压器的整流器和初级绕组之间的受控半导体,用于响应于时钟信号周期性地中断DC电流。 短路开关设置在变压器的次级绕组和电源装置的输出端之间。 扼流器耦合到短路开关,并且电压限制器耦合到扼流圈。 耦合在电压限制器和电源装置的输出之间的电流调节器具有逆向电流 - 电压特性和用于产生可选择的电流和电压组合的时间延迟上升的延迟级。 电路元件将电流调节器的可选输入和输出信号提供给电压调节器的输入端。 电压调节器的输出耦合到时钟发生器。 耦合到变压器的初级绕组的电流测量电路和时钟发生器在变压器的次级侧发生短路的情况下限制提供给变压器的初级绕组的电流。