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Discuss the modes of connection for polyphase transformers
Discuss with aid of electrical grouping and wiring connection diagrams the different types of connections for polyphase transformers listed below:
a) Dd 6
b) Dz 0
c) Yd 1
d) Yz 11
The per-phase synchronous reactance of a three-phase, wye-connected, 2.5-MVA, 6.6-kV, 60-Hz turboalternator is 10. Neglect the armature resistance and saturation. Calculate the vo
compound generator drawback
The devices in power system shown in Figure 2 have the following ratings: G1 : 100 MVA, 13.8 kV grounded Y, X” = 0.15 pu, X2 = 0.015 pu Xo = 0.05 pu G2 : 50 MVA, 20.0 kV grounded
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