4. Repeat Example 4.3, assuming ACSR conductors Show the procedure to arrive at the following answers 0.02% VD/(...
3.7 A square area of 20,000 ft on a side has a load density of 2000 kVA/mile 0.9 lagging power factor is to be served from a 12.47 kV substation that is located at the center of the square. Two different plans are being considered for serving the area. The two plans are shown in Figure 3.28 Plan A proposes to break the a three-phase primary main consisting of 336/400 26/7 ACSR conductors, and the dotted lines will be the...
what information needed?
3. Repeat Example 7.8, using a 100 kVA transformer and #3/0 AWG and #2 AWG cables for the SLs and SDs, respectively Show the procedure to arrive at the following answers (a) 0.72 pu A (b) 0.050 pu V Example 7.8 residential secondary distribution system. Assume that the distribution trans- Figure 7.11 shows former capacity is 75 kVA (use Table 7.1), all secondaries and services are single-phase three wire, nominally 120/240 V, and all SLs are of...
Example 22 A three-phase, 60-Hz, completely transposed 345-kV, 200-km line has two 795,000-cmil (403-mm2) 26/2 ACSR conductors per bundle and the following positive-sequence line constants: z 0.032 + 10.35 /km y j4.2 x 10-6 S/km Full load at the receiving end of the line is 700 MW at 0.99 p.f. leading and at 95% of rated voltage. Assuming a medium-length line, determine the following: a. ABCD parameters of the nominal π circuit b. Sending-end voltage Vs, current Is, and real...