Why Was Circuit Breaker Capacity Rated in MVA and Now in kA?

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Breaking & Making Capacity of Circuit Breaker. Voltage and Current Rating of Breaker. Duty Cycle & Short Time Operation of CB. MVA, kA & kV Rating of Breaker
Why Was Circuit Breaker Capacity Rated in MVA and Now in kA?
Circuit Breaker Rating
Why Was Circuit Breaker Capacity Rated in MVA and Now in kA?
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Why Was Circuit Breaker Capacity Rated in MVA and Now in kA?
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Why Was Circuit Breaker Capacity Rated in MVA and Now in kA?
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Why Was Circuit Breaker Capacity Rated in MVA and Now in kA?
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Why Was Circuit Breaker Capacity Rated in MVA and Now in kA?
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Why Was Circuit Breaker Capacity Rated in MVA and Now in kA?
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Why Was Circuit Breaker Capacity Rated in MVA and Now in kA?
Why Was Circuit Breaker Capacity Rated in MVA and Now in kA? in
Why Was Circuit Breaker Capacity Rated in MVA and Now in kA?
What Do Symmetrical, Asymmetrical, Momentary, Interrupting, Close
Why Was Circuit Breaker Capacity Rated in MVA and Now in kA?
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