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Modified Busbar Protection to Solve Isolators’ Lost of Position Problems

Mohamed Younes E. Henna

Abstract


This paper has developed way to secure substation operation though modified the busbar protection, and make it more reliable, accurate and independable. Mal operation of busbar protection is a very critical situation leading the entire substation out of services and consequently the power station units and load feeders which connected with it. Positions of the isolators are the main part in busbar protection, so when the busbar protection lose one of the isolator position it mean that busbar protection cannot defined which busbar it is really connected with, to do the calculation and the action. In this paper we modified method to solve this problem by using algebraic algorithm and logic circuits to determine the isolator position and insure the trip dissection of the busbar protection.    

Keywords


Substation Protection, Busbar Protection, Logic Circuits, Isolator Problems.

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References


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