Showing posts with label single phase. Show all posts
Showing posts with label single phase. Show all posts

Saturday, February 5, 2011

Three Phase Conversion

Three phase converters are suitable for all the applications listed above. They can run one or many motors. They can be compared with other single to three-phase converters available worldwide, except they electronically switch 600 % rated power for up to 10 seconds and need no maintenance because they have no electromechanical contacts.

Three phase converters are capable of starting many motors simultaneously, even under load. Each motor will reach full speed in the shortest possible time. Motors also maintain their speed when momentarily overloaded.

This unique converter copes well with the most difficult applications: Metal lathes without clutches, hydraulic systems, refrigeration units, wheel balancers, older types of compressors. Three phase a will cope with start-stop operation, with forward-reverse and with electric brakes.

Three phase converter can be used with Variable Speed Drives.


Three phase converter installation

Install a single-phase industrial wall switch-socket combination. Connect your new converter. Now you have three-phase power for all your electric motor and machine tool requirements.

Motor speeds are constant as with a three-phase supply. Starting motors draw high currents. Three phase converter a will produce these currents in order to maintain output voltages. This will draw high input currents for a short time. On the single phase supply side it pays to install heavy cables. This will minimise voltage drop.

Installation instructions and service schematics are provided with each converter. A simple block diagram is shown below.


Friday, February 4, 2011

Basic Rectifier Circuit

Now we come to the most popular application of the diode: rectification. Simply defined, rectification is the conversion of alternating current (AC) to direct current (DC). This involves a device that only allows one-way flow of electrons. As we have seen, this is exactly what a semiconductor diode does. The simplest kind of rectifier circuit is the half-wave rectifier. It only allows one half of an AC waveform to pass through to the load.