Transformers Explanation

Electrical Transformers Explained

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Electrical transformers are used to "transform" voltage level to another, usually from a higher to a lower voltage voltage. They do this by applying the principle of magnetic induction between coils to convert the voltage and / or current levels.

Thus, electrical transformers are a passive device that converts alternating current (also known as "AC") power from one circuit to another through electromagnetic induction. An electrical transformer typically comprises a ferromagnetic core and two or more coils called "winding". A changing current in the primary winding creates an alternating magnetic field in the core. In turn, the core and multiplies this field most couples flow through the secondary windings of transformers. This in turn induces alternating voltage (or emf) in each of the secondary coils.

Electrical transformers can be configured as one phase or three-phase configuration. There are several important specifications to specify when searching for electrical transformers. These include: the maximum capacity of high voltage, high current maximum capacity, maximum power, and output type. An electrical transformer can provide more than one value of the secondary voltage. The rated power is the sum of the VA (Volts x Amps) for all secondary. Output options include AC or DC. Toggle output waveform of current, voltage, values are typically given in RMS values. See manufacturer for options waveform. For the secondary output DC voltage, check with the manufacturer for the type of rectification.

The cores may be constructed as either a laminated or toroidal. Toroidal units are typically copper wire wound around a cylindrical core so that the magnetic flux produced inside the coil does not leak, efficiency of the coil is good, and the magnetic flux has little influence on other components. Laminate refers to the laminated steel cores. These steel sheets are insulated with a non conductive material such as varnish, and then formed in a core to reduce electrical losses. There are many types. These include autotransformer, control, power, distribution, general purpose instrument, the isolation, the potential (voltage), power, step-up and step down. Assemblies include chassis mounting plate or mounting disk, enclosure or free standing, h frame and PCB.

Types of Transformer:

Types of Transformer:

Transformers can be classified in different ways, depending on its purpose, use, construction, etc. Transformer rates are as follows,

      Step Up Transformer and choke - Generally used for stepping up and down the voltage level of energy in the power grid transmission and distribution.
      Three Phase Transformer & Transformer Single Phase - Ex is generally used in the three-phase power system, since it is profitable than later but when size matters, it is preferable to use the bank of three single-phase transformers, since it is easier to carry three units one separate phase of a single phase drive.

      electrical transformer
      Electric power transformer, distribution transformer and transformer instruments - Transformer is generally used in the transmission network is commonly known as power transformer, distribution transformer is used in the distribution network and this is lower rating and the current transformer transformer and potential transformer is used for the transmission and protection purpose in the power system and different instruments industries are called instrument transformer.

      Two Winding Transformer and Auto Transformer - The former is usually used in relation between high voltage and low voltage is greater than 2. It is profitable for later use in the relationship between high voltage and low voltage is less than 2.

      Transformer outdoor and indoor transformer - Transformers are designed for outdoor installation are outdoor transformers and transformers designed for indoor installation are transformers inside.

Introduction of Transformer

electrical engineering

electrical engineering
Electrical engineers design of complex energy systems ...
... And electronic circuits.

Electrical engineering is a field of engineering thaudy and application of electricity,t generally deals with the st electronics and electromagnetism. This field first became an identifiable occupation in the second half of the 19th century after commercialization of the electric telegraph, telephone, and electricity distribution and use. Subsequently, the broadcast media and electronic recording made part of everyday life. The invention of the transistor and subsequently brought down the integrated circuit electronics cost to the point that can be used in almost any household object.

Electrical engineering has been subdivided into a wide range of subfields including electronic, digital computers, power engineering, telecommunications, control systems, RF engineering, signal processing, instrumentation and microelectronics. The issue of electronic engineering is often regarded as its subfield but intersects with all other subfields, including power electronics electrical engineering.

How a thermal power plant works

Home Made Steam Plant Condensate System Test

SURYADEV POWER 80 MW x 2 - Coal Fired Thermal Power Plant,Tamilnadu,India

3D WALK THROUGH THERMAL POWER PROJECT INDIA

Australia's Energy Security - 24/7 Concentrated Solar Thermal Power plus Molten Salt Storage (CSP+

Thermal Power Generation,Nuclear Power Generation

Nuclear Power Generation

It is estimated that the coal reserve of our country will be exhausted within the next 40 years, if coal continues to be consumed at the current rate. The solution to this situation is a nuclear power plant as thought. In a nuclear power plant, uranium 235 undergoes nuclear fission. In fission process, U 235 is bombarded by a beam of neutrons. The collision of neutrons with 235 U nucleus creates enormous thermal energy along with other neutrons. These newly created neutrons are called fission neutrons hit again by another mare U235 nuclear and create thermal energy and other fission neutrons. During the fission process in the core of U 235 is divided into two parts. The fission process is commutative in nature. Therefore, a nuclear reaction is a chain reaction and therefore should be allowed to be produced in a controlled manner. Moderate and control rods are used to control this chain reaction.
power plant neuclear
Moderate used to reduce the speed of neutrons and the control rods are used to absorb neutrons to maintain neutron required for the process number. Moderates are made of heavy water or carbon rods and control are pure cadmium or boron steel. The speed of the nuclear reaction can be controlled by inserting control rods to a desire deeply into the reaction chamber. Pushing down and pulling up the control rods, the output of the plant nuclear generation is controlled. Although this process is not manual, which is controlled by the automatic control system feedback. The heat generated during fission is removed from the reactor through which coolant is liquid sodium or some gaseous fluids. The coolant is circulated between the heat exchanger and reactor. Heat taken reactor and heat to water occurs in the heat exchanger. Thus, water in the heat exchanger becomes high pressure and high temperature steam. The steam drives a turbine and then exhausted to a condenser where it is condensed to water and cooled for re-feeding to the heater switches back through a feed water pump. The main advantage of the nuclear power plant is the minimum fuel consumption. It was observed that for the operation of a 1,000 MW thermal power plant, nearly 6 kg X106 coal to be burned every day, while in a nuclear power plant only 2.5 kg of uranium consumed daily to get same output. But the initial investment in nuclear power plant is quite high. It produces electricity without causing any air pollution, but always has the possibility of radiation hazard due to leaks in the reactor chamber. Another major disadvantage of this plant is its withdrawal, because its provisions are not free of radioactivity.
Unconventional Power Power Generation

Although the main sources of power generation are thermal, hydal and nuclear power plants, but there are still many other unconventional sources of energy available. These unconventional sources such as wind power, solar energy, MHD generation, fuel cell, etc. they are becoming promising alternative sources for power generation.

Nagarjuna Sagar tail pond

Nagarjuna Sagar tail pond
Nagarjuna Sagar tail pond is a multipurpose reservoir located 21 km downstream of Nagarjuna Sagar dam across the Krishna river near Satrasala in Guntur district. Its gross storage capacity of water is 6 Tmcft. [1] The area of diffusion of water from the reservoir extends to the foot of Nagarjuna Sagar Dam. The project is under construction and is expected to be completed in July 2014. [2]

Contents
Hydro generation 1
2 peaking power generation
3 Irrigation Potential
4 Alternate to Nagarjuna Sagar Dummugudem link channel tail pond
5 joint projects with Karnataka
6 See also
7 References
Hydro electricity generation
Two units of 25 MW each hydro power generation units are under construction by APGENCO to use available through the dam the flood waters of the river and the water released to the requirements Prakasam Barrage load.

Peaking power generation
Currently, the 700 MW reversible hydroelectric turbines (7 x 100 MW), located at the tip of Nagarjuna Sagar dam can not operate in pumping mode due to the unavailability of the pond queue to store the water released during the generation mode energy. With the completion of the pond tail, surplus electricity from the grid is used to pump water back into the reservoir Nagarjuna Sagar and recycling to meet the peak load on daily basis. Therefore surplus electricity consumed when available and used to meet peak electricity requirements without letting the tail pond water Nagarjuna Sagar. 700 MW peaking power for eight hours can be fulfilled which Tmcft live storage capacity of available water in the pond tail.

The irrigation potential
200 Tmcft surplus water per year from the Godavari River is scheduled to be introduced in this pond tail Dummugudem Levante Irrigation Scheme is running. The pond water transferred to this queue to be pumped up current gross capacity water storage tank 410 Nagarjuna Sagar Tmcft to feed his right and the left bank channels. So Nagarjuna Sagar reservoir does not have to be supplied with water from the Srisailam dam upstream. [3] As the tail water level (48.33 m MSL) of this dam is below the full reservoir level (53.34 m MSL) Pulichintala downstream the dam, surplus water in the tank Pulichinthala can be pumped by providing units pumped storage Pulichinthala tank of Nagarjunasagar through this pond water retained in the reservoir Srisailam be used for upstream water use from JuraAbout and Srisailam reservoirs for irrigation needs in highland regions Telangana and Rayalaseema. The water reservoir Nagarjuna Sagar also be pumped to Srisailam Srisailam reservoir by central bank left hydropower (900 MW) in the pumping mode in case of severe drought in the Krishna river basin. Koilsagar lift irrigation project (about 16 ° 23'49 "N 77 ° 39'30" E), lift irrigation project Rajiv Bhima, lift irrigation project Nettampadu (about 16 ° 18'58 "N 77 ° 40 '21 "E), lift irrigation system Kalwakurthy, Srisailam Left Bank Canal, Telugu Ganga project irrigation, lift irrigation project Handri Neeva, irrigation project Galeru Nagari, Veligonda irrigation project etc., which are in advanced stage of construction, depend Krishna river water available in JuraAbout / Srisailam dam.

A canal lift from the Krishna River (16 ° 42'50 "N 80 ° 08'24" E 20 m MSL) downstream of the dam will be executed Pulichintala for feeding water diverted from Polavaram Godavari some of the existing control zone (located 60 m below MSL) in Nagarjuna Sagar right bank of the canal to facilitate the extension of Nagarjuna Sagar right bank canal connects the feed channel Kandaleru / deposit Somasila

electronics and communication engineering video

MECHANICAL PROPERTIES:

• mechanical properties are associated with behaviour of materials subjected to mechanical load. strenth:it is defined as the capacity to resist external load under given conditions.
• modulus of elasticity :the ratio of stress to strain,within the elastic limit,is called modulus of elasticity or yongs modulus. 
• ductility:it is the ability of a material to defrom under tensil load.the property facilitates wire drawing operation.
• malleability:it isthe ability of a material defrom under compressive load.due to this property metals are hammered and rolled into thin sheets.
• toughness:the ability of a material to absorb energy before  fracture is called toughness.
• creep:the slow an progressive deformation of a material with time at constant stress is called creep.

three phase AC induction motor demonstration

three phase AC induction motor demonstration

proud to be an electrical engineer

proud to be an electrical engineer