MGVCL Exam Paper (30-07-2021 Shift 1)
What are the states of the three ideal diodes of the circuit shown in figure ?

D1 ON, D2 OFF, D3 ON
D1 ON, D2 OFF, D3 OFF
D1 OFF, D2 ON, D3 OFF
D1 OFF, D2 ON, D3 ON

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

MGVCL Exam Paper (30-07-2021 Shift 1)
The necessary equation to be solved during the load flow analysis using Fast-Decoupled methid is given below:
where B' and B'' are formed using the imaginary part of the bus admittance matrix Ybus, n is the total number of buses in the system, m is the number of voltage regulated buses. The size of matrix B' is
∆P/|Vi|= -B' ∆δ
∆Q/|Vi| = -B'' ∆|Vi|

(n-m) x (n-m)
(n-m-1) x (n-m-1)
(n-1) x (n-1)
(m-1) x (m-1)

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

MGVCL Exam Paper (30-07-2021 Shift 1)
A grid interactive solar system:

supplies power to as well as receives power from the grid as required
always receives power from the grid
works only when the grid fails
always supplies power to the grid

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP