The 4.76-kV circuit breaker in Table 9.4 can be used for a rated fault current interruption of

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The 4.76-kV circuit breaker in Table 9.4 can be used for a rated fault current interruption of 41 kA at a rated 4.76 kVLL system voltage. Determine the range of system voltage and interruption current it can be used for.

Table 9.4

TABLE 9.4 Standard Ratings of Indoor Circuit Breaker in 4.76-38 kV Range Rated System Voltage kV LLrms 4.76

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