Electrical Engineering ⇒ Topic : Single-phase Mercury Arc Rectifier
Single-phase Mercury Arc Rectifier
Half-wave Rectification. Fig.(b)shows a half-wave rectifier having one anode only to which one end of the secondary of the transformer is connected. The current in the external load flows only when the an-ode is positive, i.e., during the first-half of the cycle, no current flows during the second-half when anode is negative.
Fig.(a) Single-phase half wave glass bulb mercury arc rectifier
Full-wave Rectification. Fig.(b) shows a full wave rectifier. It has two anodes A1 and A2 and the load is connected between the cathode C and the centre of the secondary oft he transformer
Fig. (b) Single-phase full wave glass bulb mercury arc rectifier
When the current in the secondary is + ve, say from right to left, the anode A1 will conduct. During the secopd half of the cycle the current in the secondary of the winding is from left to right.So now anode A2 will conduct while the direction of the current in the load remains same. The period of conduction of each anode is 2Π/2 = 3.t. Such a rectifier which utilises both halves of the alternating wave is called a full-wave rectifier
!! OOPS Login [Click here] is required for more results / answer