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Short Circuit (Series)

Electrical Science Volume 1 of 4
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Basic DC Theory DC CIRCUIT FAULTS Figure 57    Shorted Parallel Circuit Parallel circuits are more likely than series circuits to develop damaging short circuits.   This is because  each  load  is  connected  directly  across  the  power  source.   If  any  of  the  load  becomes shorted, the resistance between the power source terminals is practically zero.   If a series load becomes shorted, the resistance of the other loads keeps the circuit resistance from dropping to zero. Summary The important information in this chapter is summarized below. DC Circuit Faults Summary An open series DC circuit will result in no power being consumed by any of the loads. The effect of an open in a parallel circuit is dependent upon the location of the open. A shorted DC circuit will result in a sudden and very large increase in circuit current. Rev. 0 Page 69 ES-02







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