发明名称 |
ELECTRICAL FAULT DETECTION CIRCUIT WITH DUAL-MODE POWER SUPPLY |
摘要 |
<p>An arcing fault protection assembly and a corresponding method determin e whether arcing is present in electrical circuits. The assembly powers-up quickly without dissipating excessive heat while power is being supplied to the assembly. The assembly comprises a sensor, a broadband noise circuit, a controller, and a dual-mode power supply. The sensor detects a current flowing in an electrical circuit and develops a corresponding sensor signal. The broadband noise circuit determin es the presence of broadband noise in the sensor signal and produces a correspondin g output signal. The controller processes the sensor signal and the output signal in a predetermined fashion to determine whether an arcing fault is present in the circuit. The dual-mode power supply supplies power to the sensor, broadband noise circuit and controller using a first mode and later switching to a second mode. The first mode reaches steady state faster than the second mode.</p> |
申请公布号 |
CA2341945(C) |
申请公布日期 |
2006.08.22 |
申请号 |
CA20012341945 |
申请日期 |
2001.03.22 |
申请人 |
SQUARE D. COMPANY |
发明人 |
HAUN, ANDY A.;LARSON, BRETT E.;GRATTAN, BRIAN G.;DVORAK, ROBERT F.;WONG, KON B. |
分类号 |
H02H3/16;H01H71/12;H01H83/00;H01H83/02;H01R4/36;H01R11/26;H02H1/00;H02H1/06;H02H3/10;H02H3/33;H02H3/44 |
主分类号 |
H02H3/16 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|