Which of the following connections is good for 3-phase, 4-wire system? All Questions › Category: Electrical Machines › Which of the following connections is good for 3-phase, 4-wire system? -1 Vote Up Vote Down Rajasri Mundrathi Staff asked 3 years ago Options: a) Δ – Δb) Y – Yc) Δ – Yd) Y – Δ 1 Answers 0 Vote Up Vote Down Rajasri Mundrathi Staff answered 3 years ago The correct answer is Δ – Y