Transcription of CHAPTER – 3 ELECTRICAL PROTECTION SYSTEM
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CHAPTER – 3 ELECTRICAL PROTECTION SYSTEM
105 CHAPTER 3 ELECTRICAL PROTECTION SYSTEM DESIGN CONSIDERATION PROTECTION SYSTEM adopted for securing PROTECTION and the PROTECTION scheme the coordinated arrangement of relays and accessories is discussed for the following elements of power SYSTEM . i) Hydro Generators ii) Generator Transformers iii) H. V. Bus bars iv) Line PROTECTION and Islanding Primary function of the protective SYSTEM is to detect and isolate all failed or faulted components as quickly as possible, thereby minimizing the disruption to the remainder of the electric SYSTEM .
primary protection and breaker-failure relaying. Ideally, this should include two independent sets of current transformers, voltage transformers, protective relays, and breaker trip coils, but only one breaker-failure relaying system is required. Each protective relay system should be isolated so that a failure in one will not affect the other.
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