Answer Posted / m bilal akram

a line touch with ground is called earth fault due to this
current flow back to sours.earth leakage equipment work on
kerchief current law incoming current is equal to outgoing
current.when not equal UN balancing current flow due to this
current flux generate in sensing coil(CT)and then tripping
occur with CT output.

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PLZ EXPLIN ABOUT CLASS PS CLASS CT .WHY THEY R DESINED AND FOR WHAT PURPOSE?WHY OTHER CT CANT BE USED AS PS CLASS CT? EXPLAIN IN SIMPLE LAUNGAGE IF POSSIBLE PLZ GIVE CIRCIT DIAGRAM?EMAIL-RAJ_SINGH_0376@SIFY.COM

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