公开(公告)号：US06680583B2

公开(公告)日：2004-01-20

申请号：US10092606

申请日：2002-03-08

申请人： Makoto Noda ,  Yoshihiro Nakamura ,  Hideki Shimizu ,  Ikuo Suzuki ,  Daiki Goshima ,  Yoshihiro Matsui ,  Tadayoshi Samura ,  Ryoichi Uda ,  Takahiro Takizuka

发明人： Makoto Noda ,  Yoshihiro Nakamura ,  Hideki Shimizu ,  Ikuo Suzuki ,  Daiki Goshima ,  Yoshihiro Matsui ,  Tadayoshi Samura ,  Ryoichi Uda ,  Takahiro Takizuka

IPC分类号： H05B3702

CPC分类号： H05B41/2851

摘要： An abnormality detection circuit detects abnormality relating to ground fault in secondary winding circuitry of transformer, non-grounding fault of transformer assembly casing or false connection of the AC power source to the transformer assembly in reverse polarity. An interrupter circuit turns a switch off in response to detection of the abnormality by the abnormality detection circuit to interrupt the supply of the AC power to the transformer. When the supply of the AC power is interrupted, the switch is connected to a restart circuit, whereupon the circuit is activated to allow a charging current to flow to a capacitor, which is connected in series in a drive current path of a drive circuit with a time delay on the order of 0.5 to 1.0 second which is determined by a delay circuit thereof. The charging current drives a restoring circuit, which controls the interrupter circuit to its restoring condition temporally so that the switch is turned to its “on” condition only once.

摘要翻译： 异常检测电路检测变压器次级绕组电路中的接地故障，变压器总成壳体的非接地故障或交流电源与变压器组件的极性相反的异常。 断续电路响应于异常检测电路的异常检测而断开，以中断向变压器供电的交流电。 当交流电源的供应中断时，开关连接到重启电路，由此电路被激活以允许充电电流流向电容器，电容器串联连接在驱动电路的驱动电流路径中， 由延迟电路确定的0.5至1.0秒的时间延迟。 充电电流驱动恢复电路，其将断续器电路在时间上控制到其恢复状态，使得开关仅转换到其“接通”状态一次。