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Westinghouse IRV Instructions Manual page 98

Directional overcurrent relay for phase protection

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T yp i cal T ime Curve of th e T im e·O vercurrent Unit of th e Long T ime
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MU L T I P L ES O F T A P V A L U E CU R R E N T
TYP I CA L T I M E CU R V ES
TYPE C0-5
O V E R CU R R E N T R E LAY
50-60 H E R T Z
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