| 摘要 |
Device for monitoring of parameters of quality of electric energy and determination of permitted load on electric motors has three input voltage transformers, three analog-digital transformers, galvanic uncoupling, system controller, keyboard, real time clock, block of interface RS-485, digital signal processor, means for representation of information, permanent memory (|PM), FLASH-memory, high-speed static RAM and energy-independent RAM, at that information inputs of the input voltage transformers are connected to respective phases of the network, the first, second and third input voltage transformers are connected to the first, second and third analog-digital transformers, control inputs of the input voltage transformers through block of galvanic uncoupling are connected to zoom outputs of the system controller, information inputs of that one are connected through the block of galvanic uncoupling to control circuits and outputs of the first, second and third analog-digital transformers, besides that keyboard, real time clock and block of interface RS-485 are connected to the system controller, digital signal processor, means for representation of information, PM, FLASH-memory, high-speed RAM and energy independent RAM that are connected to the system mains are connected to the system controller, at that there are included arithmetical-logical block, block of interface USB 2.0, at that the arithmetical-logical block is connected to the signal processor through the system mains, block of interface USB 2.0 is connected to the system controller. |
