How it Works and Functions Each transformer:

Understanding the transformer or transformers in brief is to energize the electromagnet components or electrical power from high voltage to low voltage or vice versa, with equal frequency. When utility power is interrupted, the officer will check the transformer is working. why transformer needed? because it usually needs a tool that does not allow the use it supply nets - nets, say so many companies are to importtechnology from outside or country of origin, say for example that Japan will open a factory in Indonesia of course technological resources ranging from machinery and other equipment should take dong because Indonesia did not have in Japan when the voltage was 110V instead of 220V was used in Indonesia like-what's the solution? step-down transformer is used of voltage 110V U.S. $ 220 used to be a simple understanding of the transformer is a device used to change the amount of voltage can be increased or scaled back
Understanding power transformer / power transformer

Power transformer is an electrical power equipment that serves to channel the energy / power from high voltage to low voltage or vice versa (transform voltage) in general terms that the power transformer
To facilitate the supervision of the operation of the transformer can be divided into: large Transformer, Trafo medium, small transformers.

How it Works and Functions Each transformer:

The main part
- The core of iron
Iron core serves to facilitate the flux path, caused by electric current through the coil. Made of thin steel plates are insulated to reduce heat (as the iron losses) caused by the "Eddy Current".
- The coil transformer

Some insulated wire wrapped to form a coil. The coil is well insulated against the iron core and to the other coil with solid insulation such as cardboard, pertinax and others. Generally there is a coil on the transformer primary and secondary. When the primary coil is connected to the voltage / alternating current in the coil then the flux that induce a voltage arises, when the secondary circuit is closed (the load circuit) then the current will flow in the coil. So the coil as a means of transformation of voltages and currents.

- The coil tertiary
Tertiary coil voltage needed to obtain a tertiary or for other needs. For both purposes, the tertiary coil is always connected to the delta. Tertiary coil is often used also for connecting auxiliary equipment such as condenser Synchrone, shunt capacitors and shunt reactors, however, not all of the power transformer has a tertiary coil.

- Transformer oil
Most of the power transformer core and coils immersed in the oil-transformer, transformer-especially large-capacity power transformer, because it has the properties of transformer oil as a heat transfer medium (circulated) and is also as insulation (high breakdown voltage power) that serves as cooling and insulation media

There are at least three causes damage to the transformer resulting in outages at the customer channel. About 30 percent are caused by the reduced volume of lubricating oil to make fast heat transformer and then burned, 24 percent due to lightning strikes, and seven percent due to excess pressure. The rest, can be caused by, for example, components that are old and should replaced and overloaded.

To overcome such defects, electrical officer will identify the cause first. If the cause is the lubricant that is reduced, we can be sure a leak on the fins, body, tap expenses, cover packing up, packing bushing and tap changer that must be patched. The officer just add oil or lubricating oil which has been reduced due to the leak until a stable size. If t / Afo damaged by lightning and overload, can be overcome by mutations transformer