An intelligent microcomputer protection device with the functions of operating status display, wireless temperature measurement and communication protocol automatic conversion

Abstract

The invention discloses an intelligent microprocessor protection device with operation status display, wireless temperature measurement and communication protocol automatic switching functions. The device comprises an input circuit composed of a transformer set and a circuit, an intelligent protection CPU, a wireless temperature measurement part, an operation and status display part a power-loss delay tripping part, a protocol automatic switching part, a large-screen color liquid crystal display, a keyboard, a real-time clock, an optoelectronic isolation part and a power supply unit. The device also comprises a high-voltage live display and an infrared inductive probe. According to the invention, functions of high-voltage live display, temperature control, control change-over switch, switch cabinet one-time state diagram color display, wireless temperature measurement, communication protocol automatic switching and no-voltage delay action, etc. are realized. The device also can be connected with a superior scheduling system through an Ethernet fiber interface so as to upload local relevant data at real time. Whole series of microcomputer protection functions are combined. The device provided by the invention can be widely applied in the field of power-system intelligent microcomputer comprehensive protection device.

Description

technical field [0001] The invention relates to a switch cabinet and a microcomputer comprehensive protection device for a substation, in particular to an intelligent microcomputer protection device with the functions of displaying operating status, wireless temperature measurement and automatic conversion of communication protocols. Background technique [0002] Power supply is becoming more and more important in today's society. The safety and quality of power supply are closely related to the advancement and modernization of power transformation and distribution and power supply equipment. The functions of traditional switch cabinets are far from meeting the needs of the modern power industry. For example: the display of various states in the operation of the switchgear, high voltage, temperature and humidity display devices, wireless temperature measurement and alarm devices, infrared automatic induction detection devices, and a full range of microcomputer protection devi...

AI Technical Summary

Problems solved by technology

[0002] Power supply is becoming more and more important in today's society. The safety and quality of power supply are closely related to the advancement and modernization of power transformation and distribution and power supply equipment. The functions of traditional switch cabinets are far from meeting the needs of the modern power industry. For example: the display of various states in the operation of the switchgear and the high voltage, temperature and humidity display device, wireless temperature measurement and alarm device, infrared automatic induction detection device and a full range of microcomputer protection devices. It also has the function of voltage loss delay action, network scheduling and Functions such as data transfer

[0003] Due to reasons such as development history and history, equipment that fully meets the above conditions and functions is still rare. During the construction and renovation of the power supply system, most of the above-mentioned single equipment or devices are installed on the switchgear on site; Due to the non-uniform design, it is very inconvenient to install, and if these devices are not compatible with each other, it will increase the cost of procurement, commissioning, operation and maintenance

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