railway RRB JE (CBT I + CBT II) Mock Test 2024 Electrical Machines Alternator and Synchronous Motors Alternator Parallel Operation
Fig. shows two alternators with identical speed / load characteristics connected in parallel. The circulating current under no-load condition is
1
\(\frac{(E_1-E_2)}{(Z_1+Z_2)}\)
2
\(\frac{(E_1+E_2)}{(Z_1+Z_2)}\)
3
\(\frac{(Z_1Z_2)}{(Z_1+Z_2)}(E_1-E_2)\)
4
\(\frac{(Z_1Z_2)}{(Z_1-Z_2)}(E_1-E_2)\)