Q3. The protection of a ring main system for feeder protection is shown in the following figure Fig.Q3. In this system,

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Q3 The Protection Of A Ring Main System For Feeder Protection Is Shown In The Following Figure Fig Q3 In This System 1 (49.46 KiB) Viewed 30 times

Q3. The protection of a ring main system for feeder protection is shown in the following figure Fig.Q3. In this system, various sub-stations are interconnected by alternate routes, thus forming a closed ring. Determine the following: (a) Draw the ring main scheme with proper relative time-setting of the relays. (b) Which relays will operate first if fault occurs in between Bus C & Bus D? Bus D Load Bus A ↑ =* 8 ↑ ox Load *+ ↑ Load Fig. Q3: Ring Main system for Feeder protection. Bus C ↑ Bus B Load [3*2]