Which
one of the following statements is correct?
The
elements of each row of a Ybus matrix for load flow
studies in power system add up to zero.
Always
If
the shunt admittances at the buses are ignored
If
mutual couplings between transmission lines are absent
If both (b) and (c) are satisfied
If both (b) and (c) are satisfied
Elements
of each row of a Ybus matrix for a load flow
studies in power system add upto zero only when
1.
The shunt admittance at the buses are ignored.
2.
Mutual couplings between transmission lines are absent.
Hence,
the correct option is (D).
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