Early warning system and method for grounding deterioration of rotor slip ring

Abstract

The invention provides a rotor slip ring grounding deterioration early warning system and method, and relates to the technical field of steel production, the system comprises a connection detection system, a closing enabling system, an actual value acquisition middle end, a threshold comparison conversion system and an early warning processing output system, the connection detection system is used for connecting a left phase and a middle phase of a three-phase alternating 170V power supply; according to the invention, rotor slip ring grounding quantitative data can be dynamically collected and dynamically monitored, and early warning of rotor slip ring grounding deterioration is realized through signal conversion and signal transmission and logic processing and quantitative output of the central processing unit. The grounding deterioration of the slip ring of the rotor can be found in time, and the searching analysis and locking of accurate grounding points and grounding sources of a video acquisition system, a picture acquisition system and a manual proofreading system are combined, so that the running environment tolerance of the finish rolling motor is greatly improved; and finally, safe and stable operation of the finish rolling motor and maximization of production efficiency and production yield are realized.

Description

technical field [0001] The invention relates to the technical field of iron and steel production, in particular to a system and method for early warning of grounding degradation of a rotor slip ring. Background technique [0002] The 6000KW synchronous motor for high-end finishing rolling is the core heart equipment of high-line finishing rolling. The safe and stable operation of the 6000KW synchronous motor for high-speed finishing rolling is directly related to the stable and high output of the high-line finishing rolling production line. However, due to the limitations of the overall layout of the rolling line and related equipment such as finish rolling motor, finish rolling speed-up box, finish rolling 10 roll boxes, finish rolling 10 cone boxes and other equipment, the finish rolling motor is installed under the plane of the five-meter platform of the high line, The environment around the entire motor is extremely harsh, with a large amount of oil, gas, water vapor, an...

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Problems solved by technology

[0003] Due to the high-speed rotation of the finishing rolling motor, the relevant components of the rotor slip ring will absorb a large amount of oil gas and water vapor, as well as the mixed oil gas and mixed water vapor mixed with metal dust mixture such as iron oxide scale due to negative pressure, which will cause the rotor slip ring Grounding deterioration leads to extremely dangerous factors in the operation of the finishing rolling motor. If there is no quantitative data processing and an early warning system within the safety red line, it will bring great safety hazards to the safe and stable operation of the finishing rolling motor, and will affect the entire precision rolling motor. The rolling system of rolled products brings great instability and the risk of stacking steel. Therefore, the present invention proposes a system and method for early warning of grounding degradation of rotor slip rings to solve the problems existing in the prior art

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