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Mathematics, 03.05.2021 18:40 kcameronanderso

For an installation with a 30 kilovolt amp 3 phase transformer A480 Volt primary and 240 V secondary calculate the largest standard sized circuit breaker permitted for primary only protection to be used without applying note one of table for 450. 3B

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For an installation with a 30 kilovolt amp 3 phase transformer A480 Volt primary and 240 V secondary...
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