Power sources-rectifier type power sources, Mechanical Engineering

RECTIFIER TYPE POWER SOURCES


The next popular power sources are of rectifier type. Three phase transformer (step down) connected to a rectifier to give DC output is the simplest form. These DC output rectifiers are available with flat and drooping characteristics.

The flat characteristic DC output rectifiers are used for MIG / CO2 welding and SA welding. The output voltage (arc voltage) selection is provided by a tap changing on the primary side of input transformer. The power factor and efficiency of these flat DC output rectifiers are very high. Rectifiers with drooping characteristics DC output are used for SMAW, TIG, plasma and sometimes SA welding. The current control is done by magnetic amplifier connected between secondary and rectifier. Compensation for line voltage fluctuations is also incorporated in some of the latest rectifier type powersources.

Posted Date: 9/14/2012 3:28:49 AM | Location : United States







Related Discussions:- Power sources-rectifier type power sources, Assignment Help, Ask Question on Power sources-rectifier type power sources, Get Answer, Expert's Help, Power sources-rectifier type power sources Discussions

Write discussion on Power sources-rectifier type power sources
Your posts are moderated
Related Questions
The Diameter Dimension Command You can use the Diameter command to annotate a circle or an arc with a diameter dimension. To achieve this simply start the command, pick a point

Concentrate d or Point Load: How many types of load are acting on the beam? A beam is usually horizontal and the loads acting on beams are usually vertical. The followi

Q. Explain Sulphidation process? The presence of sulphur converts the surface of the metal to a sulphide scale which is generally more destructive than an oxide scale. Sulphid

An oil engine works on the Dual cycle, the heat liberated at consent pressure being twice that liberated at consent volume. The compression ratio of the engine is 8 and the expansi

You are required to design the central section of the bicycle frame which consists of the seat tube, top tube, down tube and head tube. You can ignore the seat stays, chain stays a


(a) Draw neatly and accurately the Merchant force circle diagram. Mention clearly the forces involved, the constructional steps and the assumptions made [do not derive the forces]

Q. Can you explain Investment casting? -Investment casting produces very high surface quality and dimensional accuracy. -Investment casting is commonly used for precision eq

Sound Waves in Gases Sound waves are longitudinal pressure waves. Let us consider the motion of a plane sound wave moving along  X-axis  in a gas medium. In undisturbed positio

Q1. A short vertical column consists of a channel section with the dimensions shown in Figure 1(a). The column (part of a system used to support a machine) carries a compressive p