Friday, March 4, 2011

Accessories of transformer

i. Oil conservator tank

ii. Cooling system

iii. Buch-holz relay

iv. Control panel

v. Drain valve

vi. Bushings

vii. Fan control panel

viii. Top sampling valve

ix. Middle sampling valve

x. Filter valve

xi. Relief valve

xii. Radiator tubes

xiii. ON load tap changer

xiv. Magnetic oil level gauge

Importance of transformer

In our country power generate at l1.5kv. At this voltage current will high and if we transmit power on this voltages line losses will increase because P=I2R. For transmission we use high voltages i.e. 500kv, 220kv, 132kv and 66kv. At these voltages current will low and power losses will also less. For this purpose we use a step up transformer which increase the voltage and decrease the current and at grid station a step down transformer convert again these voltages in 11.5kv. We can’t use these high voltages and the help of step-down transformer we convert voltage as requirement.

Transformers type

I. Step up transformer

Step up transformer increase the given voltage and decrease the current. Its primary winding consists on thick wire and less number of turns but in secondary side thin wire and more number of turn’s w.r.t primary side.

II. Step down transformer

Step down transformer decrease the given voltage and increase the current. Its primary winding consists on thin wire and more number of turns but in secondary side thick wire and less then the number of turn’s w.r.t primary side.


Mutual induction:

The phenomenon in which an alternating current in one coil induces an emf in another coil is called the mutual induction.

Mutual induction of two coils depends upon the following factor:

Ø Number of turns of the coils.

Ø Area of cross-section of the coils.

Ø Closeness of the coils.

Ø Nature of the core material upon which the two coils are wound.


The transformer works on the principle of mutual induction between the two coils. A changing current in the primary winding induces an emf in the secondary winding.


A transformer is an electrical device which is used to increase and decrease given alternating voltage with out any changing in frequency.

Sunday, August 16, 2009

Advice On Learning Forex Trading

Business these days is a very tough task and it pays to know exactly what your doing. This is especially to true when dealing with the forex market. It is indispensable that learning forex trading and all that is associated with it to best of your ability in order to succeed. The various stakes and players. When you choose to learn forex trading you need to know exactly what your dealing with such as

* The value of the currency
* The various factors that will affect the value of the currency
* The trading strategies
* All the different market trends.

Knowing these will greatly help your cause. The fundamentals to forex trading is solid research. As it’s such a tough market then getting your hands on a good course to help in your knowledge of learning forex trading will help.

Why Should You Look For A Good Forex Trading Course?

Forex trading courses will help in teaching you the ways in which to predict or chart the continuous movement in the market as well as when the perfect time to buy or sell a commodity is. It will help you in getting familiar with various forex trading terminologies and the process of trading.

Because forex trading is done in real time and decisions are done on the spot, a trader should be emotionally equipped and prepared to handle the demands, challenges and the stress of the market. And these, one can learn in a forex trading education.

Why Forex Trading Courses Are So Important

From ancient times, people have been engaged in different types of businesses. Buying, and selling of commodities, is still the backbone of any business. Businesses have not only provided bread and butter to generations but have also helped build many great nations.

Trading is also one of the very old ways of doing business. Long ago, people traded goods for other goods. Later on, goods were traded for services and services were traded for money.

Forex trading is just one of the many forms of trading business. Simply put, forex trading is the trading of different currencies in the world. Known as the largest financial market in the world, forex trading is the least regulated market which provides absolute liquidity to most investors.

In the beginning forex trading seems very easy. But in reality, it’s quite difficult. To make money in forex trading, you should be able to buy currencies at a cheaper rate and sell them later at a higher rate. If you don’t have proper knowledge about it, you will lose a whole lot of money.

To become a pro in forex trading, you will need to learn the basics and then practice with some advanced learning tools. If you do it right, it won’t be long when you will become a master.

Tips On Forex Trading Signal Software

If I ask you to name the five most important things in your life without which you can not possibly survive, you would probably count money in. Money is indeed an absolute necessity these days to live a comfortable life. You need money not only for your basic needs such as feeding your family, but also to buy things that help you to live a happy and content life.

There are various ways to earn money and it depends on an individual to choose the right way of making money. Some people work for an organization and trade their services for money, while others prefer running independent businesses to earn the money they need.

However, there is another way to make money which is called trading. People trade in a number of things, such as stock trades, commodity trades etc. But those who trade in money make millions of dollars in a very short time.

This kind of trade is called Forex trading. In the Forex market, you buy or sell currencies. Forex is the largest and the most liquid financial market in the world that operates 24 hours a day and produces monetary transactions that amount up to 2 trillion dollars in a single trading day.