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Blown fuses detecting system - uses photocells to sense operation of neon lamps across fuses
Blown fuses detecting system - uses photocells to sense operation of neon lamps across fuses
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机译:保险丝熔断检测系统-使用光电管来感测跨越保险丝的霓虹灯的操作
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摘要
The apparatus for the central control and detection of blown fuses includes at a central location a neon warning lamp supplied by a photoelectric cell with a variable resistance. This cell is placed in the dark and is sensitive to an assembly of neon lamps, each supplied by a circuit linked to the terminals of one of the fuses of the installations. The photoelectric cell also includes a test lamp operated via a pushbutton positioned at the central location. This checks the operation of the system.
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