Repeat Example 10 4 for the following system data Coordinate the relays for the maximum fault currents Example 10 4 Data for the (60 mathrm Hz ) radial system of Figure 10 16 are given in Tables 10 3, 10 4, and 10 5 Select current tap settings (TSs) and time dial settings (TDSs) Bus 1 2 23 3 Breaker B1 B2 B3 MVA 9 0 9 0 9 0 Maximum Load Lagging p f 0 95 0 95 0 95 Breaker Operating Time 5 cycles 5 cycles 5 cycles Symmetrical Fault Current Minimum A 3750 2250 1500 Maximum A 5000 3000 2000 CT Ratio 600 5 400 5 200 5 Relay CO 8 CO 8 CO 8

Question: Repeat Example 10.4 for the following system data. Coordinate the relays for the maximum fault currents. Example 10.4 Data for the (60-mathrm{Hz}) radial system of

Repeat Example 10.4 for the following system data. Coordinate the relays for the maximum fault currents.

Bus 1 2 23 3 Breaker B1 B2 B3 MVA 9.0 9.0

Example 10.4

Data for the $60-\mathrm{Hz}$ radial system of Figure 10.16 are given in Tables 10.3, 10.4, and 10.5. Select current tap settings (TSs) and time-dial settings (TDSs)

9.0 Maximum Load Lagging p.f. 0.95 0.95 0.95 Breaker Operating Time 5

Bus 1 2 23 3 Breaker B1 B2 B3 MVA 9.0 9.0 9.0 Maximum Load Lagging p.f. 0.95 0.95 0.95 Breaker Operating Time 5 cycles 5 cycles 5 cycles Symmetrical Fault Current Minimum A 3750 2250 1500 Maximum A 5000 3000 2000 CT Ratio 600:5 400:5 200:5 Relay CO-8 CO-8 CO-8

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