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Based on the S7-200 substation central signal system design and application

Author: YuHuiQun
Tutor: CaoGuangHuaï¼›SunTongLi
School: Daqing Petroleum Institute
Course: Electrical Engineering
Keywords: PLC Central signal Accident signal Warning signal Flashing signal
CLC: TM63
Type: Master's thesis
Year: 2009
Downloads: 200
Quote: 2
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Abstract


As computer technology continues to develop industrial control , computer monitoring technology has improved. Since PLC (Programmable logic controller program logic control ) the robustness and reliability , are widely used in industrial control systems. Security of supply is a major problem , in order to find the first time and deal with failure , the substation is necessary to set the central signal system . Through this paper the central signal system works substation analysis , to understand its function mainly through signal relay and lighting device - launch screen . By contrast, summed up the shortcomings of traditional alarm system , and proposed using the PLC to improve their level of intelligence and automation methods . This paper describes the use of S7-200 series PLC to improve the central signal system design methods . According to the central signal system works , PLC control substation central signal system theory , with PLC incident acoustic signal , warning signal , the process and characteristics of the light signal . Including the central incident signal design and central warning signal design. Which the central accident signal including accidents and incidents acoustic signal light signal designs. Central warning signal in the electrical equipment or lines abnormal working condition, help determine the equipment and its nature , be dealt with in order to take timely measures to prevent further incidents . The final form of PLC I / 0 allocation table and central signaling system ladder .

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CLC: > Industrial Technology > Electrotechnical > Power generation, power plants > Substation
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