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Assuming an electric system operator knows by experience that a loss of 1000 MW generating unit in a known network path historically results in 0.16 Hz dip in system frequency. Using ratio he can estimate the frequency dip due to the loss of 800 MW generating unit.
What is the frequency dip to the system if 800 MW of power is loss? What is the new system frequency after the power loss of 800 MW, assumed the electric system frequency is 60 Hz.
Historical Loss MW
Historical
Hz
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MW loss, Estimated
Hz , Estimated
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Hz , new frequency after the power loss from 60 Hz reference .
Warning use with caution: This estimator is useful only to experience power dispatcher who have a good historical data of power flow of known network path.
Historical loss MW
Historical Hz
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MW loss, Answer
Hz frequency dip
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