Title :
Design objectives for spring mechanism generator circuit breaker with high reliability
Author :
Willieme, J.M. ; Frigiere, D. ; Mikes, E. ; Montillet, G.F.
Author_Institution :
AREVA T&D Res. Center, Villeurbanne
Abstract :
Generator circuit breakers are used in many medium power plants (gas or coal) today, rated from 50 MW to 200 MW. Their acceptance is based on financial criteria, and at the same time on the utmost reliability and availability of power plants. The generator circuit breaker protects the generator and the stepup transformer. Various works in the industry have proven that the reliability of these apparatuses is based on the reliability of mechanisms. The spring mechanism has been proven as being the most reliable for the type of energy involved in interrupting short circuit in circuit breakers. This paper looks at the increase of reliability and availability of generator circuit breakers due to the operation of spring mechanism
Keywords :
circuit breakers; electric generators; machine protection; power generation reliability; power stations; power transformer protection; springs (mechanical); 50 to 200 MW; circuit breakers; design objectives; medium power plant reliability; spring mechanism generator protection; stepup transformer protection; Availability; Circuit breakers; Circuit testing; Electrical equipment industry; Power generation; Power system reliability; Protection; Short circuit currents; Springs; Voltage; Generator circuit breaker; availability; reliability;
Conference_Titel :
Power Engineering Society General Meeting, 2006. IEEE
Conference_Location :
Montreal, Que.
Print_ISBN :
1-4244-0493-2
DOI :
10.1109/PES.2006.1708909
