Take the configuration shown in Figure 5.20. Knowing that all the relays of over

Take the configuration shown in Figure 5.20. Knowing that all the relays of
overcurrent of the proposed configuration are numerical, of type URPE7104 of the
PEXTRON, you are asked to: 1- perform angular closure of all CTs involved; two-
specify the main CTs by the two criteria, load and short circuit; 3- specify the
auxiliary CTs; 4- adjust the overcurrent protections as well as draw the overcurrent curves
coordination; and, 5- adjust the differential relay.