专利汇可以提供Dual ground integrity monitoring circuit专利检索,专利查询,专利分析的服务。并且A circuit for use with a sensor located in a hazardous area such as in an atmosphere of explosive gases, organized to prevent electrical power at the sensor from exceeding prescribed levels even upon reasonably foreseeable failures of parts of the circuit. The circuit, which is located in a non-hazardous area, includes an indicator, such as a relay-controlled alarm, to respond to the sensor, and terminals for connection to a source of line voltage. Two voltage step-down transformers have their secondaries connected in series with one another and with the sensor. The primary of one transformer is connected to the line voltage source; and the primary of the other transformer is connected to the indicator. Each transformer secondary lies intermediate a pair of current limiting resistors, and the primary and secondary windings of each transformer are isolated by means of a grounded conductive sheet. Each transformer, along with its associated current limiting secondary resistors, is embedded in potting material to form a self-contained isolating circuit module. The circuit is intended to be connected to a remote ground terminal as well as the ground terminal of the line voltage source. A ground integrity detector circuit interrelates these three terminals by means of resistances and a neon glow tube to provide a signal whenever one of the ground circuits is lost, as well as a signal upon failure of one of the resistances forming the ground integrity detection circuit. The remote ground connection has a path extending through the circuit chassis to insure that its ground is maintained.,下面是Dual ground integrity monitoring circuit专利的具体信息内容。
标题 | 发布/更新时间 | 阅读量 |
---|---|---|
一种适用于交流变频空调系统压缩机的变频装置及变频方法 | 2020-05-08 | 194 |
组合式开关电场感应取电装置 | 2020-05-08 | 806 |
配电网防窃电系统、防窃电控制方法及系统、设备、介质 | 2020-05-08 | 46 |
一种海上风电场低频交流不控整流输电系统 | 2020-05-11 | 498 |
一种高压多路阀可靠性测试试验台及基于其的测试方法 | 2020-05-12 | 152 |
开关电源电路及电源设备 | 2020-05-13 | 937 |
一种不锈钢电化学着色电位控制装置 | 2020-05-11 | 255 |
医学实验检验工作台 | 2020-05-11 | 990 |
一种基于高压直流输电的异步互联测试系统 | 2020-05-12 | 290 |
一种真空感应电炉用中频电源节能系统 | 2020-05-12 | 458 |
高效检索全球专利专利汇是专利免费检索,专利查询,专利分析-国家发明专利查询检索分析平台,是提供专利分析,专利查询,专利检索等数据服务功能的知识产权数据服务商。
我们的产品包含105个国家的1.26亿组数据,免费查、免费专利分析。
专利汇分析报告产品可以对行业情报数据进行梳理分析,涉及维度包括行业专利基本状况分析、地域分析、技术分析、发明人分析、申请人分析、专利权人分析、失效分析、核心专利分析、法律分析、研发重点分析、企业专利处境分析、技术处境分析、专利寿命分析、企业定位分析、引证分析等超过60个分析角度,系统通过AI智能系统对图表进行解读,只需1分钟,一键生成行业专利分析报告。