公开(公告)号：US5166887A

公开(公告)日：1992-11-24

申请号：US624011

申请日：1991-01-28

申请人： Ronald L. Farrington ,  Thomas W. Porter

发明人： Ronald L. Farrington ,  Thomas W. Porter

IPC分类号： H02H3/00 ,  H02H3/04

CPC分类号： H02H3/00 ,  H02H3/04 ,  H01H2071/006 ,  H01H2300/03 ,  Y02B70/3241 ,  Y02B90/224 ,  Y04S20/14 ,  Y04S20/227

摘要： A circuit breaker system employs a sensor circuit to measure the current flow in a conductor. A microcomputer monitors the current flow and trips a circuit breaker if the measured current flow exhibits certain predetermined characteristics. A power supply circuit generates a regulated output voltage proportional to the measured current flow to supply power to a portion of the circuit breaker system electronics. To protect the portion of the electronics powered by the power supply circuit, the output from the power supply is shorted through a resistance circuit for a predetermined period of time if the magnitude of the measured current flow induces an output voltage in excess of a predetermined level.

摘要翻译： 断路器系统采用传感器电路来测量导体中的电流。 如果测量的电流显示某些预定特性，则微型计算机监视电流并跳闸断路器。 电源电路产生与所测量的电流成比例的稳定的输出电压，以向断路器系统电子部件的一部分供电。 为了保护由电源电路供电的电子部分，如果测量的电流的大小导致超过预定电平的输出电压，则来自电源的电源的输出通过电阻电路短路预定的时间段 。

公开(公告)号：US5170360A

公开(公告)日：1992-12-08

申请号：US624439

申请日：1990-12-07

申请人： Thomas W. Porter ,  Craig G. Ross, Jr.

发明人： Thomas W. Porter ,  Craig G. Ross, Jr.

IPC分类号： H02H3/00 ,  H02H3/04

CPC分类号： H02H3/04 ,  H02H3/00 ,  H01H2071/006 ,  H01H2300/03 ,  Y02B90/224 ,  Y04S20/14

摘要： A circuit breaker system uses a microprocessor for calculating at least one function of a measured current flow. The microprocessor provides other functions such as serial data stream communications, the ability of many circuit breaker systems to communicate with a central computer, storage of trip information concerning the last trip, storage of historical trip information concerning a number of past tips, EEPROM memory for storing trip information, the microprocessor may inhibit tripping on a high current fault to permit storage of trip information into a memory, power is derived from current transformers drawing energy from current flow to a load and the electronics are protected from high voltage caused by heavy current flow to the load, optical isolators are used for the circuit breaker to communicate with external equipment, a multi-turn resistor adjusts an external test voltage for testing the circuit breaker system, in the event that there is no load or a load drawing insufficient current to provide power for the electronics the circuit breaker may be externally powered to provide readout of electrically erasable programmable read only memory, the microprocessor reads setting switches and a multiplier plug. Also the microprocessor is capable of digitizing selected quantities frequently and of digitizing other quantities less frequently. A second microprocessor permits one microprocessor to sample voltage and current rapidly for metering purposes, and the second microprocessor operates other functions.

摘要翻译： 断路器系统使用微处理器来计算测量的电流的至少一个功能。 微处理器提供其他功能，例如串行数据流通信，许多断路器系统与中央计算机通信的能力，存储关于最后行程的行程信息，存储关于过去提示数的历史行程信息，EEPROM存储器 存储跳闸信息，微处理器可以禁止大电流故障跳闸以允许将跳闸信息存储到存储器中，从电流从电流流向负载的电流变压器导出功率，并且电子器件被保护免受由大电流引起的高电压 流入负载，光隔离器用于断路器与外部设备通信，多圈电阻调节外部测试电压，以测试断路器系统，如果没有负载或负载拉动电流不足 为电子设备提供电源，断路器可以由外部供电以提供读数 的电可擦除可编程只读存储器，微处理器读取设置开关和乘法器插头。 此外，微处理器能够频繁地数字化所选择的数量并且不频繁地数字化其它量。 第二个微处理器允许一个微处理器快速采样电压和电流用于测量目的，而第二个微处理器操作其他功能。