Virtual Labs

a: They represent total susceptance connected to the bus b: They represent line resistance connected to the bus c: They represent voltage magnitudes at the bus d: They represent total power injection at the bus

In the DC Power Flow results, what does a positive power flow on a line indicate?

a: Power is flowing from the higher voltage angle bus to the lower voltage angle bus b: Power is flowing from the lower voltage angle bus to the higher voltage angle bus c: The system is over-supplied d: Reactive power is being transferred

If the reactance of a line decreases in a mesh network, how does it affect the power flow?

a: Power flow decreases b: Power flow increases c: Power flow remains constant d: Power flow becomes undefined

How does removing a transmission line from the system affect the B-matrix?

a: Increases the values of diagonal elements associated with the connected buses b: Reduces the number of non-zero off-diagonal elements in the B-matrix c: Increases the number of rows and columns in the B-matrix d: Does not affect the B-matrix

What is the key limitation of the DCPF method identified in the experiment?

a: It cannot compute voltage magnitudes accurately b: It does not consider real power injections c: It assumes that line losses are always negligible d: It is computationally intensive

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