ARCING FAULT DETECTION SYSTEM
    3.
    发明公开
    ARCING FAULT DETECTION SYSTEM 失效
    LICHTBOGENFEHLERERFASSUNGSSYSTEM

    公开(公告)号:EP1012611A4

    公开(公告)日:2000-08-09

    申请号:EP98903658

    申请日:1998-01-23

    Applicant: SQUARE D CO

    Abstract: A system for testing an arcing fault detection system in an electrical distribution network having a line conductor carrying an electrical signal between a power source and a load, the arcing fault detection system including a sensor coupled to the line conductor for monitoring the electrical signal and generating a sensor signal representing the electrical signal, the arcing fault detection system generating and arc-indicative signal in response to the sensor signal having characteristics indicative of an arcing fault. The testing system couples the sensor to a test line simultaneously with the line conductor and periodically produces a test signal on the test line. The sensor simultaneously monitors the test signal and the electrical signal and produces a sensor signal representing both the test signal and the electrical signal when the test signal is present on the test line. The arcing fault detection system generates an arc-indicative signal in response to the sensor signal associated with either the test line or line conductor having characteristics indicative of an arcing fault. A diagnostic test integrator evaluates the status conditions of the test signal and the arc-indicative signal and generates a trip signal to trigger the interruption of the electrical signal in response to certain status conditions of the test signal and the arc-indicative signal.

    Abstract translation: 一种用于测试配电网络中的电弧故障检测系统的系统,所述电力配电网络具有承载电源与负载之间的电信号的线路导体,所述电弧故障检测系统包括耦合至线路导体的传感器,用于监测电信号并产生 表示电信号的传感器信号,电弧故障检测系统响应于具有指示电弧故障的特性的传感器信号而生成电弧指示信号。 测试系统将传感器与线路导体同时连接到测试线路,并在测试线路上定期产生测试信号。 当测试信号出现在测试线上时,传感器同时监测测试信号和电信号,并产生代表测试信号和电信号的传感器信号。 电弧故障检测系统响应于与具有指示电弧故障的特征的测试线路或线路导体相关联的传感器信号而生成电弧指示信号。 诊断测试积分器评估测试信号和电弧指示信号的状态条件并产生跳闸信号以响应测试信号和电弧指示信号的某些状态条件而触发电信号的中断。

    EFFICIENT VENTING MEANS FOR A CIRCUIT BREAKER

    公开(公告)号:CA2502809A1

    公开(公告)日:2005-10-01

    申请号:CA2502809

    申请日:2005-03-31

    Applicant: SQUARE D CO

    Abstract: An arrangement for reducing pressure inside a circuit breaker caused by gas produced during an electrical interruption event, including a base, an interrupter assembly, and a trip unit base. A structure having a surface is positioned i n the base at an angle relative to a vent opening of the interrupter assembly. The trip unit base includes a complementary structure opposing the structure to form a cavity. The base includes a chamber area adjacent to an opening of a vent chute that leads aw ay from the circuit breaker. During an electrical interruption event, hot explosive gas, carbon, and molten metal debris are directed away from the vent opening of the interrupter assembly along the angled surface of the structure and toward the opening of the vent chute. In this manner, pressure in the circuit breaker is reduced during an electrical interruption event, and undesirable buildup of debris is reduced.

    LIGHTING CONTROL FOR ENERGY MANAGEMENT SYSTEM

    公开(公告)号:CA2073985A1

    公开(公告)日:1992-05-29

    申请号:CA2073985

    申请日:1991-11-27

    Applicant: SQUARE D CO

    Abstract: A modular energy management circuit breaker (EMCB) system is adapted for installation with existing panelboards. It comprises a bus way (37) that includes a connector (34) that is coupled to an inter- face module connector (24). The interface module (24), which extends across the panelboard, makes connection with the power bus and is connected to the panelboard by snap-in means. A control module is adapted to interengage with another connector in the interface module and to control a plurality of EMCBs (32). A bus way includes a plural- ity of connectors adjacent a plurality of circuit breaker positions which are connected to suitable circuits in the control module for con- trolling the drivers for the EMCBs. A terminal box (30) is formed at the end of the control module and has provision for connecting a plu- rality of control wires to suitable terminating devices for interfacing external controlling devices to the control module. The bus way is sup- ported adjacent the panelboard solely by means of the connectors con- necting it to the interface module and to one or more EMCBs. All wir- ing to the energy management system is via printed circuit boards in the modules and interconnecting connectors.

    CONVENIENCE CENTER MOUNTING ARRANGEMENT

    公开(公告)号:CA2007791A1

    公开(公告)日:1990-07-19

    申请号:CA2007791

    申请日:1990-01-15

    Applicant: SQUARE D CO

    Abstract: An electrical convenience center mounting system includes an open rigid frame attachable to a support member in a wall. A ribbon cable containing a plurality of power and control wires is electrically terminated by a branch tap having a flat surface containing a plurality of socket terminals. The system further includes a plurality of plug-in control modules, connectible to and supportable on the branch tap, and duplex outlet receptacle module mountable to a rigid frame support member, that is mounted to the wall support member for supporting the branch tap and attached modules. An open box support type support frame is also disclosed with the branch tap and box support cooperating to position the branch tap partially within the box support A cover plate that completely overlies the surface of the convenience center includes apertures for enabling plug-in connections to the receptacle module. The cover plate may be opaque or transparent to enable decorator patterns to be inserted between the transparent cover plate and the convenience center surface.

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