<P> To simplify, let R T (\ displaystyle R_ (T)) be the sum of (R a, R b, R c) (\ displaystyle \ (R_ (a), R_ (b), R_ (c) \)). </P> <Dl> <Dd> R T = R a + R b + R c (\ displaystyle R_ (T) = R_ (a) + R_ (b) + R_ (c)) </Dd> </Dl> <Dd> R T = R a + R b + R c (\ displaystyle R_ (T) = R_ (a) + R_ (b) + R_ (c)) </Dd> <Dl> <Dd> R Δ (N 1, N 2) = R c (R a + R b) R T (\ displaystyle R_ (\ Delta) (N_ (1), N_ (2)) = (\ frac (R_ (c) (R_ (a) + R_ (b))) (R_ (T)))) </Dd> </Dl>

How to convert star to delta and delta to star