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| Figure 14-3 Coodination of overcurrent protection on a radial power system. |

| combination determined. Compromise settings can then be made after the maximum and minimum fault currents at all locations are calculated. |

| In the assumed system of Fig. 14-5B, a 23 kV subtransmission system has two 69 kV sources of supply itself and supplies two 7.6 kV distribution substa- |

| Figure 14-4 Overcurrent time-current curves. (Courtesy, Westinghouse Electric Co.) |

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