公开(公告)号：US6040778A

公开(公告)日：2000-03-21

申请号：US63475

申请日：1998-04-20

申请人： William Thomas Hopkins ,  David Henrik Riesland ,  Anthony William Banks

发明人： William Thomas Hopkins ,  David Henrik Riesland ,  Anthony William Banks

IPC分类号： G01R31/02 ,  H05B41/285 ,  G08B21/00

CPC分类号： H05B41/2851 ,  G01R31/025

摘要： A power supply circuit detects ground fault paths, and miswiring of the load, using a test mode in which electrical power is applied to only one power output terminal of the power supply relative to the ground terminal, while substantially no electrical power is applied to the second power output terminal relative to the ground terminal. If application of power during the test mode causes substantial current flow through ground, then there is a ground fault path, or an incorrect connection between the midpoint of the load and ground. The power supply further includes unique features for signaling the presence and kind of fault it has detected; the power supply is capable of distinguishing between ground faults in at least two different locations, and when a fault is detected, the power supply signals the presence of the fault and its location, e.g., by timed blinking of the connected discharge light. These features are enhanced by a diagnostic analyzer for connection to the power supply. The diagnostic analyzer monitors power flow from the output terminals of the diagnostic analyzer to the input terminals of the power supply, and evaluates the power flow to identify power flow patterns indicative of a fault and the kind of fault. The power supply also reduces inrush current by disconnecting and reconnecting power to the transformer primary winding in opposite half-cycles of the alternating current electrical power.

摘要翻译： 电源电路使用对电源相对于接地端子的仅一个电力输出端子施加电力的测试模式来检测接地故障路径和负载接线，同时基本上没有电力施加到 第二功率输出端子相对于接地端子。 如果在测试模式下施加电源导致大量电流流经地面，则存在接地故障路径，或负载中点与地之间的不正确连接。 电源还包括用于发信号通知检测到的故障的存在和种类的独特功能; 电源能够区分至少两个不同位置的接地故障，并且当检测到故障时，电源例如通过连接的放电灯的定时闪烁来指示故障的存在及其位置。 这些功能由诊断分析仪增强，用于连接电源。 诊断分析仪监视从诊断分析仪的输出端子到电源输入端的功率流，并评估功率流，以识别指示故障和故障种类的功率流模式。 电源还通过在交流电力的相反的半个周期内断开和重新连接变压器初级绕组的电源来降低浪涌电流。

公开(公告)号：US06366208B1

公开(公告)日：2002-04-02

申请号：US09453426

申请日：1999-12-02

申请人： William Thomas Hopkins ,  David Henrik Riesland ,  Anthony William Banks

发明人： William Thomas Hopkins ,  David Henrik Riesland ,  Anthony William Banks

IPC分类号： G08B2100

CPC分类号： H05B41/2851 ,  G01R31/025

摘要： A power supply circuit detects ground fault paths, and miswiring of the load, using a test mode in which electrical power is applied to only one power output terminal of the power supply relative to the ground terminal, while substantially no electrical power is applied to the second power output terminal relative to the ground terminal. If application of power during the test mode causes substantial current flow through ground, then there is a ground fault path, or an incorrect connection between the midpoint of the load and ground. The power supply further includes unique features for signaling the presence and kind of fault it has detected; the power supply is capable of distinguishing between ground faults in at least two different locations, and when a fault is detected, the power supply signals the presence of the fault and its location, e.g., by timed blinking of the connected discharge light. These features are enhanced by a diagnostic analyzer for connection to the power supply. The diagnostic analyzer monitors power flow from the output terminals of the diagnostic analyzer to the input terminals of the power supply, and evaluates the power flow to identify power flow patterns indicative of a fault and the kind of fault. The power supply also reduces inrush current by disconnecting and reconnecting power to the transformer primary winding in opposite half-cycles of the alternating current electrical power.

摘要翻译： 电源电路使用对电源相对于接地端子的仅一个电力输出端子施加电力的测试模式来检测接地故障路径和负载接线，同时基本上没有电力施加到 第二功率输出端子相对于接地端子。 如果在测试模式下施加电源导致大量电流流经地面，则存在接地故障路径，或负载中点与地之间的不正确连接。 电源还包括用于发信号通知检测到的故障的存在和种类的独特功能; 电源能够区分至少两个不同位置的接地故障，并且当检测到故障时，电源例如通过连接的放电灯的定时闪烁来指示故障的存在及其位置。 这些功能由诊断分析仪增强，用于连接电源。 诊断分析仪监视从诊断分析仪的输出端子到电源输入端的功率流，并评估功率流，以识别指示故障和故障种类的功率流模式。 电源还通过在交流电力的相反的半个周期内断开和重新连接变压器初级绕组的电源来降低浪涌电流。